www.ti.com SGLS247A - JUNE 2004 - REVISED JUNE 2008 D Qualified for Automotive Applications D 150-mA Low-Dropout Regulator D Output Voltage: 5 V, 3.8 V, 3.3 V, 3 V, 2.8 V, D D D D D D DBV PACKAGE (TOP VIEW) 2.7 V, 2.5 V, 1.8 V, 1.6 V and Variable Dropout Voltage, Typically 300 mV at 150 mA Thermal Protection Overcurrent Limitation Less Than 2-A Quiescent Current in Shutdown Mode -40C to 125C Operating Junction Temperature Range 5-Pin SOT-23 (DBV) Package IN 1 GND 2 EN 3 5 OUT 4 NC/FB description The TPS763xx family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage, low-power operation, and miniaturized packaging. These regulators feature low dropout voltages and quiescent currents compared to conventional LDO regulators. Offered in a 5-terminal, small outline integrated-circuit SOT-23 package, the TPS763xx series devices are ideal for cost-sensitive designs and for applications where board space is at a premium. A combination of new circuit design and process innovation has enabled the usual pnp pass transistor to be replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is low--typically 300 mV at 150 mA of load current (TPS76333)--and is directly proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current is low (140 A maximum) and is stable over the entire range of output load current (0 mA to 150 mA). Intended for use in portable systems such as laptops and cellular phones, the low-dropout voltage feature and low-power operation result in a significant increase in system battery operating life. The TPS763xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 A maximum at TJ = 25C.The TPS763xx is offered in 1.6-V,1.8-V, 2.5-V, 2.7-V, 2.8-V, 3-V, 3.3-V, 3.8-V, and 5-V fixed-voltage versions and in a variable version (programmable over the range of 1.5 V to 6.5 V). TJ AVAILABLE OPTIONS{ VOLTAGE PACKAGE} PART NUMBER TPS76301QDBVRQ1 BAN 1.6 V TPS76316QDBVRQ1 BAD 1.8 V TPS76318QDBVRQ1 BAP 2.5 V TPS76325QDBVRQ1 TPS76327QDBVRQ1 BAQ 2.7 V -40C to 125C SYMBOL Variable 2.8 V SOT-23 (DBV) TPS76328QDBVRQ1 3V TPS76330QDBVRQ1 BAT 3.3 V TPS76333QDBVRQ1 TPS76338QDBVRQ1 BAU 3.8 V 5.0 V TPS76350QDBVRQ1 BAW For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at http://www.ti.com. Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging. Product Preview. Contact Texas Instruments for availability. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. !"# $ %&!!'# "$ (&)*%"# +"#', !+&%#$ %! # $('%%"#$ ('! #-' #'!$ '."$ $#!&'#$ $#"+"!+ /"!!"#0, !+&%# (!%'$$1 +'$ # '%'$$"!*0 %*&+' #'$#1 "** ("!"'#'!$, Copyright 2008 Texas Instruments Incorporated SGLS247A - JUNE 2004 - REVISED JUNE 2008 functional block diagram TPS76301 OUT IN EN Current Limit/ Thermal Protection VREF FB GND TPS76316/ 18/ 25/ 27/ 28/ 30/ 33/ 38/ 50 OUT IN EN Current Limit/ Thermal Protection VREF GND Terminal Functions TERMINAL DESCRIPTION NAME GND Ground EN Enable input FB Feedback voltage (TPS76301 only) IN Input supply voltage NC No connection (fixed-voltage option only) OUT Regulated output voltage 2 www.ti.com www.ti.com SGLS247A - JUNE 2004 - REVISED JUNE 2008 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)(1) Input voltage range(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 V to 10 V Voltage range at EN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 V to VI + 0.3 V Voltage on OUT, FB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Peak output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally limited ESD rating, HBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kV Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Tables Operating junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40C to 150C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65C to 150C (1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) All voltage values are with respect to network ground terminal. DISSIPATION RATING TABLE BOARD PACKAGE RJC RJA DERATING FACTOR ABOVE TA = 25C TA 25C POWER RATING TA = 70C POWER RATING TA = 85C POWER RATING Low K(1) DBV 65.8C/W 259C/W 3.9 mW/C 386 mW 212 mW 154 mW High K(2) DBV 65.8C/W 180C/W 5.6 mW/C 555 mW 305 mW 222 mW (1) The JEDEC Low K (1s) board design used to derive this data was a 3 inch x 3 inch, two layer board with 2 ounce copper traces on top of the board. (2) The JEDEC High K (2s2p) board design used to derive this data was a 3 inch x 3 inch, multilayer board with 1 ounce internal power and ground planes and 2 ounce copper traces on top and bottom of the board. recommended operating conditions MIN Input voltage, VI(1) Continuous output current, IO Operating junction temperature, TJ (1) To calculate the minimum input voltage for your maximum output current, use the following equation: VI(min) = VO(max) + VDO(max load) NOM MAX UNIT 2.7 10 V 0 150 mA -40 125 C 3 www.ti.com SGLS247A - JUNE 2004 - REVISED JUNE 2008 electrical characteristics over recommended operating free-air temperature range, VI = VO(typ) + 1 V, IO = 1 mA, EN = IN, Co = 4.7 F (unless otherwise noted) PARAMETER TEST CONDITIONS 3.25 V > VI 2.7 V, 2.5 V VO 1.5 V, 3.25 V > VI 2.7 V, 2.5 V VO 1.5 V TPS76301 VI 3.25 V, 5 V VO 1.5 V VI 3.25 V, 5 V VO 1.5 V VI 3.25 V, 5 V VO 1.5 V VI 3.25 V, 5 V VO 1.5 V VI = 2.7 V, VI = 2.7 V, TPS76316 VI = 3.25 V, VI = 3.25 V, VI = 3.25 V, VI = 3.25 V, VI = 2.7 V, VO VI = 2.7 V, Output voltage TPS76318 VI = 3.25 V, VI = 3.25 V, VI = 3.25 V, VI = 3.25 V, IO = 1 mA to 100 mA, TPS76325 IO = 1 mA to 100 mA IO = 1 mA to 150 mA, IO = 1 mA to 150 mA IO = 1 mA to 100 mA, TPS76327 TPS76328 TPS76330 IO = 1 mA to 100 mA, TJ = 25C IO = 1 mA to 100 mA, IO = 1 mA to 150 mA, TJ = 25C IO = 1 mA to 150 mA, 1 mA< IO < 75 mA, TJ = 25C 1 mA< IO < 75 mA 1 mA < IO < 100 mA, TJ = 25C 1 mA < IO < 100 mA 1 mA < IO < 150 mA, TJ = 25C 1 mA < IO < 150 mA 1 mA< IO < 75 mA, TJ = 25C 1 mA< IO < 75 mA 1 mA < IO < 100 mA, TJ = 25C 1 mA < IO < 100 mA 1 mA < IO < 150 mA, TJ = 25C 1 mA < IO < 150 mA TJ = 25C TJ = 25C TJ = 25C IO = 1 mA to 100 mA IO = 1 mA to 150 mA, TJ = 25C IO = 1 mA to 150 mA IO = 1 mA to 100 mA, TJ = 25C TYP MAX 0.98 VO VO 1.02 VO 0.97 VO VO 1.03 VO 0.98 VO VO 1.02 VO 0.97 VO VO 1.03 VO 0.975 VO VO 1.025 VO 0.9625 VO VO 1.0375 VO 1.568 1.6 1.632 1.552 1.6 1.648 1.568 1.6 1.632 1.552 1.6 1.648 1.56 1.6 1.640 1.536 1.6 1.664 1.764 1.8 1.836 1.746 1.8 1.854 1.764 1.8 1.836 1.746 1.8 1.854 1.755 1.8 1.845 1.733 1.8 1.867 2.45 2.5 2.55 2.425 2.5 2.575 2.438 2.5 2.562 2.407 2.5 2.593 2.646 2.7 2.754 2.619 2.7 2.781 2.632 2.7 2.767 2.599 2.7 2.801 2.744 2.8 2.856 2.716 2.8 2.884 2.73 2.8 2.87 UNIT V V V IO = 1 mA to 100 mA IO = 1 mA to 150 mA, TJ = 25C IO = 1 mA to 150 mA IO = 1 mA to 100 mA, 2.695 2.8 2.905 TJ = 25C 2.94 3 3.06 IO = 1 mA to 100 mA IO = 1 mA to 150 mA, 2.91 3 3.09 TJ = 25C 2.925 3 3.075 2.888 3 3.112 IO = 1 mA to 150 mA 4 IO = 1 mA to 75 mA, TJ = 25C IO = 1 mA to 75 mA, MIN V V V V www.ti.com SGLS247A - JUNE 2004 - REVISED JUNE 2008 electrical characteristics over recommended operating free-air temperature range, VI = VO(typ) + 1 V, IO = 1 mA, EN = IN, Co = 4.7 F (unless otherwise noted) (continued) PARAMETER TEST CONDITIONS TPS76333 VO Output voltage TPS76338 TPS76350 I(Q) Quiescent current (GND terminal current) Standby current Vn Output noise voltage PSRR Ripple rejection MIN TYP MAX 3.234 3.3 3.366 3.201 3.3 3.399 3.218 3.3 3.382 3.177 3.3 3.423 3.724 3.8 3.876 3.705 3.8 3.895 3.686 3.8 3.914 3.667 3.8 3.933 4.875 5 5.125 4.825 5 5.175 4.750 5 5.15 IO = 1 mA to 100 mA, IO = 1 mA to 100 mA TJ = 25C IO = 1 mA to 150 mA, IO = 1 mA to 150 mA TJ = 25C IO = 1 mA to 100 mA, IO = 1 mA to 100 mA TJ = 25C IO = 1 mA to 150 mA, IO = 1 mA to 150 mA TJ = 25C IO = 1 mA to 100 mA, IO = 1 mA to 100 mA TJ = 25C IO = 1 mA to 150 mA, IO = 1 mA to 150 mA TJ = 25C 5 5.20 IO = 0 to 150 mA, IO = 0 to 150 mA see (2) TJ = 25C (1) 85 100 EN < 0.5 V, TJ = 25C 0.5 4.80 140 EN < 0.5 V Current limit V V V A A 2 BW = 300 Hz to 50 kHz, TJ = 25C, Co = 10 F (2) f = 1 kHz, Co = 10 F, TJ = 25C, see (3) TJ = 25C (2) VI 3.5 V, TJ = 25C VI 3.5 V VIH VIL EN high level input VO + 1 V < VI 10 V, VO + 1 V < VI 10 V, See (2) EN low level input See (2) II EN input current Output voltage line regulation (VO/VO), (see (3)) 1 UNIT V 140 60 0.5 dB 0.8 1.5 0.04 0.07 0.1 1.4 0.5 A %/V 2 V 1.2 EN = 0 V -0.01 -0.5 EN = IN -0.01 -0.5 A A (1) Minimum IN operating voltage is 2.7 V or VO(typ) + 1 V, whichever is greater. (2) Test condition includes: output voltage VO = 0 V (for variable device FB is shorted to VO) and pulse duration = 10 ms. (3) If VO < 2.5 V and VImax = 10 V, VImin = 3.5 V: Line Reg. (mV) + %V V O 100 If VO > 2.5 V and VImax = 10 V, VImin = VO + 1 V: Line Reg. (mV) + %V VImax * 3.5 V V O 1000 VImax * VO ) 1 100 1000 5 www.ti.com SGLS247A - JUNE 2004 - REVISED JUNE 2008 electrical characteristics over recommended operating free-air temperature range, VI = VO(typ) + 1 V, IO = 1 mA, EN = IN, Co = 4.7 F (unless otherwise noted) (continued) PARAMETER TEST CONDITIONS TPS76325 VDO Dropout voltage TPS76333 TPS76350 6 MIN TYP IO = 0 mA, IO = 1 mA, TJ = 25C TJ = 25C 0.2 IO = 50 mA, IO = 50 mA TJ = 25C 120 IO = 75 mA, IO = 75 mA TJ = 25C 180 IO = 100 mA, IO = 100 mA TJ = 25C IO = 150 mA, IO = 150 mA TJ = 25C 360 IO = 0 mA, IO = 1 mA, TJ = 25C TJ = 25C 0.2 IO = 50 mA, IO = 50 mA TJ = 25C 100 IO = 75 mA, IO = 75 mA TJ = 25C 150 IO = 100 mA, IO = 100 mA TJ = 25C 200 IO = 150 mA, IO = 150 mA TJ = 25C 300 IO = 0 mA, IO = 1 mA, TJ = 25C TJ = 25C 0.2 IO = 50 mA, IO = 50 mA TJ = 25C 60 IO = 75 mA, IO = 75 mA TJ = 25C IO = 100 mA, IO = 100 mA TJ = 25C 120 IO = 150 mA, IO = 150 mA TJ = 25C 180 MAX UNIT 3 150 200 225 300 240 mV 300 400 450 600 3 125 166 188 250 mV 250 333 375 500 2 75 100 90 113 150 150 200 225 300 mV www.ti.com SGLS247A - JUNE 2004 - REVISED JUNE 2008 TYPICAL CHARACTERISTICS TPS76325 TPS76318 OUTPUT VOLTAGE vs OUTPUT CURRENT OUTPUT VOLTAGE vs OUTPUT CURRENT 2.505 VI = 3.5 V CI = CO = 4.7 F TJ = 25C 1.800 VO - Output Voltage - V 2.5 VO - Output Voltage - V 1.805 VI = 3.5 V CI = CO = 4.7 F TJ = 25C 2.495 2.49 2.485 1.795 1.790 1.785 1.780 2.48 1.775 2.475 0 30 60 90 120 150 180 1.770 0 IO - Output Current - mA 30 60 Figure 1 120 150 180 Figure 2 TPS76350 TPS76325 OUTPUT VOLTAGE vs OUTPUT CURRENT OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE 5.01 2.53 VI = 6 V CI = CO = 4.7 F TJ = 25C VI = 3.5 V CI = CO = 4.7 F 2.52 VO - Output Voltage - V 5 VO- Output Voltage - V 90 IO - Output Current - mA 4.99 4.98 4.97 4.96 2.51 IO = 1 mA 2.5 2.49 IO = 150 mA 2.48 4.95 0 30 60 90 120 IO - Output Current - mA Figure 3 150 180 2.47 -55 -35 -15 5 25 45 65 85 105 125 TJ - Junction Temperature - C Figure 4 7 www.ti.com SGLS247A - JUNE 2004 - REVISED JUNE 2008 TYPICAL CHARACTERISTICS TPS76318 TPS76350 OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE 5.1 1.82 VI = 6 V CI = CO = 4.7 F 5.08 1.81 IO = 1 mA 5.06 VO - Output Voltage - V VO - Output Voltage - V 1.8 1.79 IO = 150 mA 1.78 1.77 1.76 5.04 5.02 IO = 1 mA 5 4.98 4.96 IO = 150 mA 4.94 VI = 3.5 V CI = CO = 4.7 F 1.75 1.74 -55 -35 -15 5 25 45 65 85 105 4.92 125 4.9 -55 -35 TJ - Junction Temperature - C -15 25 5 45 85 65 105 125 TJ - Junction Temperature - C Figure 5 Figure 6 TPS76350 OUTPUT NOISE vs FREQUENCY GROUND CURRENT vs FREE-AIR TEMPERATURE 3 mV Hz 1000 TJ = 25C Ground Current - A VI = 6 V CI = CO = 4.7 F IO = 0 mA and 150 mA 2.5 mV Hz 2 mV Hz 1 mV Hz 10 -55 -35 CO = 4.7 F IO = 150 mA 1.5 mV Hz 100 0.5 mV Hz -15 5 25 45 65 85 TJ - Junction Temperature - C Figure 7 8 CO = 10 F IO = 150 mA 105 125 0 mV Hz 250 CO = 4.7 F IO = 1 mA CO = 10 F IO = 1 mA 1k 10k f - Frequency - Hz Figure 8 100k www.ti.com SGLS247A - JUNE 2004 - REVISED JUNE 2008 TYPICAL CHARACTERISTICS TPS76325 DROPOUT VOLTAGE vs FREE-AIR TEMPERATURE OUTPUT IMPEDANCE vs FREQUENCY 600 10 VI = EN = 2.7 V CI = CO = 4.7 F VDO - Dropout Voltage - mV IO = 1 mA 1 IO = 150 mA 0.1 0.01 0.1 150 mA 400 300 200 1 mA 0 mA 100 CI = CO = 4.7 F ESR = 1 TJ = 25C 1 10 100 0 -55 -35 1000 -15 5 25 45 65 85 105 125 TJ - Junction Temperature - C f - Frequency - kHz Figure 9 Figure 10 TPS76325 RIPPLE REJECTION vs FREQUENCY 70 60 IO = 1 mA 50 Ripple Rejection - dB Zo - Output Impedance - 500 IO = 150 mA 40 30 20 10 0 -10 10 CO = 4.7 F ESR = 1 TJ = 25C 100 1k 10 k 100 k 1M 10 M f - Frequency - Hz Figure 11 9 www.ti.com SGLS247A - JUNE 2004 - REVISED JUNE 2008 TYPICAL CHARACTERISTICS 4 3 2 VO - Change in Output Voltage - mV 200 100 0 CO = 4.7 F ESR = 0.25 TJ = 25C 50 CO = 4.7 F ESR = 0.25 TJ = 25C 1 TPS76318 LOAD TRANSIENT RESPONSE I O - Output Current - mA 5 20 0 dv + 1 V 10 ms dt -20 -30 VO - Change in Output Voltage - mV VI - Input Voltage - V TPS76318 LINE TRANSIENT RESPONSE 0 -50 -100 -150 0 20 40 60 0 80 100 120 140 160 180 200 t - Time - s 20 40 8 dv + 1 V 10 ms dt 6 5 CO = 4.7 F ESR = 0.25 TJ = 25C VO - Change in Output Voltage - mV 50 0 -50 TPS76350 LOAD TRANSIENT RESPONSE 200 CO = 4.7 F ESR = 0.25 TJ = 25C 100 0 150 100 0 -100 -200 -100 0 50 100 150 200 250 300 350 400 450 500 t - Time - s Figure 14 10 I O - Output Current - mA TPS76350 LINE TRANSIENT RESPONSE 7 80 100 120 140 160 180 200 t - Time - s Figure 13 VO - Change in Output Voltage - mV VI - Input Voltage - V Figure 12 60 0 20 40 60 80 100 120 140 160 180 200 t - Time - s Figure 15 www.ti.com SGLS247A - JUNE 2004 - REVISED JUNE 2008 TYPICAL CHARACTERISTICS TYPICAL REGIONS OF STABILITY TYPICAL REGIONS OF STABILITY COMPENSATION SERIES RESISTANCE (CSR)(1) vs OUTPUT CURRENT COMPENSATION SERIES RESISTANCE (CSR)(1) vs ADDED CERAMIC CAPACITANCE 100 CSR - Compensation Series Resistance - CSR - Compensation Series Resistance - 100 Region of Instability 10 CO = 4.7 F TJ = 25C 1 0.1 Region of Instability 0.01 Region of Instability 10 I = 150 mA CO = 4.7 F TJ = 25C 1 0.1 Region of Instability 0.01 0 50 100 150 200 250 0 0.1 Figure 16 0.6 0.7 0.8 0.9 1 Figure 17 TYPICAL REGIONS OF STABILITY TYPICAL REGIONS OF STABILITY COMPENSATION SERIES RESISTANCE (CSR)(1) vs OUTPUT CURRENT COMPENSATION SERIES RESISTANCE (CSR)(1) vs ADDED CERAMIC CAPACITANCE 100 CSR - Compensation Series Resistance - 100 CSR - Compensation Series Resistance - 0.2 0.3 0.4 0.5 Added Ceramic Capacitance - F IO - Output Current - mA Region of Instability 10 CO = 10 F 1 0.1 Region of Instability 0.01 0 50 100 150 IO - Output Current - mA Figure 18 200 250 Region of Instability 10 CO = 10 F 1 0.1 Region of Instability 0.01 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Added Ceramic Capacitance - F Figure 19 (1) CSR refers to the total series resistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance to CO. 11 www.ti.com SGLS247A - JUNE 2004 - REVISED JUNE 2008 APPLICATION INFORMATION The TPS763xx low-dropout (LDO) regulators are new families of regulators which have been optimized for use in battery-operated equipment and feature low dropout voltages, low quiescent current (140 A), and an enable input to reduce supply currents to less than 2 A when the regulator is turned off. device operation The TPS763xx uses a PMOS pass element to dramatically reduce both dropout voltage and supply current over more conventional PNP pass element LDO designs. The PMOS pass element is a voltage-controlled device that, unlike a PNP transistor, does not require increased drive current as output current increases. Supply current in the TPS763xx is essentially constant from no-load to maximum load. Current limiting and thermal protection prevent damage by excessive output current and/or power dissipation. The device switches into a constant-current mode at approximately 1 A; further load reduces the output voltage instead of increasing the output current. The thermal protection shuts the regulator off if the junction temperature rises above 165C. Recovery is automatic when the junction temperature drops approximately 25C below the high temperature trip point. The PMOS pass element includes a back diode that safely conducts reverse current when the input voltage level drops below the output voltage level. A logic low on the enable input, EN shuts off the output and reduces the supply current to less than 2 A. EN should be tied high in applications where the shutdown feature is not used. A typical application circuit is shown in Figure 20. TPS763xx(1) VI C1 1 F 1 IN NC/FB OUT 4 5 VO 3 EN + GND 2 4.7 F CSR = 1 (1) TPS76316, TPS76318, TPS76325, TPS76327, TPS76328, TPS7630 TPS76333, TPS76338, TPS76350 (fixed-voltage options). Figure 20. Typical Application Circuit 12 www.ti.com SGLS247A - JUNE 2004 - REVISED JUNE 2008 APPLICATION INFORMATION external capacitor requirements Although not required, a 0.047 F or larger ceramic bypass input capacitor, connected between IN and GND and located close to the TPS763xx, is recommended to improve transient response and noise rejection. A higher-value electrolytic input capacitor may be necessary if large, fast-rise-time load transients are anticipated and the device is located several inches from the power source. Like all low dropout regulators, the TPS763xx requires an output capacitor connected between OUT and GND to stabilize the internal loop control. The minimum recommended capacitance value is 4.7 F and the ESR (equivalent series resistance) must be between 0.3 and 10 . Capacitor values of 4.7 F or larger are acceptable, provided the ESR is less than 10 . Solid tantalum electrolytic, aluminum electrolytic, and multilayer ceramic capacitors are all suitable, provided they meet the requirements described above. Most of the commercially available 4.7-F surface-mount solid tantalum capacitors, including devices from Sprague, Kemet, and Nichico, meet the ESR requirements stated above. CAPACITOR SELECTION MFR. VALUE MAX ESR(1) SIZE (H L W) T494B475K016AS KEMET 4.7 F 1.5 1.9 x 3.5 x 2.8 195D106x0016x2T SPRAGUE 10 F 1.5 1.3 x 7.0 x 2.7 695D106x003562T SPRAGUE 10 F 1.3 2.5 x 7.6 x 2.5 PART NO. TPSC475K035R0600 AVX 4.7 F 0.6 2.6 x 6.0 x 3.2 (1) Size is in mm. ESR is maximum resistance in ohms at 100 kHz and TA = 25C. Listings are sorted by height. output voltage programming The output voltage of the TPS76301 adjustable regulator is programmed using an external resistor divider as shown in Figure 21. The output voltage is calculated using: V O + 0.995 V 1 ) R1 R2 ref (1) Where: Vref = 1.192 V typ (the internal reference voltage) 0.995 is a constant used to center the load regulator (1%) Resistors R1 and R2 should be chosen for approximately 7-A divider current. Lower value resistors can be used, but offer no inherent advantage and waste more power. Higher values should be avoided as leakage currents at FB increase the output voltage error. The recommended design procedure is to choose R2 = 169 k to set the divider current at 7 A and then calculate R1 using: R1 + V 0.995 O V *1 ref R2 (2) 13 www.ti.com SGLS247A - JUNE 2004 - REVISED JUNE 2008 APPLICATION INFORMATION TPS76301 OUTPUT VOLTAGE PROGRAMMING GUIDE DIVIDER RESISTANCE (k)(1) OUTPUT VOLTAGE (V) R1 R2 2.5 187 169 3.3 301 169 3.6 348 169 4 402 169 549 169 750 6.45 (1) 1% values shown. 169 5 VI 1 F 2 V 1 IN OUT 3 0.5 V 5 VO R1 EN FB GND 2 4 + R2 4.7 F CSR = 1 Figure 21. TPS76301 Adjustable LDO Regulator Programming power dissipation and junction temperature Specified regulator operation is assured to a junction temperature of 125C; the maximum junction temperature allowable to avoid damaging the device is 150C. This restriction limits the power dissipation the regulator can handle in any given application. To ensure the junction temperature is within acceptable limits, calculate the maximum allowable dissipation, PD(max) and the actual dissipation, PD, which must be less than or equal to PD(max). The maximum-power-dissipation limit is determined using the following equation: P D(max) T max * T A + J R qJA Where: TJmax is the maximum allowable junction temperature RJA is the thermal resistance junction-to-ambient for the package, see the dissipation rating table. TA is the ambient temperature. The regulator dissipation is calculated using: P D + V *V I O I O Power dissipation resulting from quiescent current is negligible. regulator protection The TPS763xx pass element has a built-in back diode that safely conducts reverse currents when the input voltage drops below the output voltage (e.g., during power down). Current is conducted from the output to the input and is not internally limited. If extended reverse voltage is anticipated, external limiting might be appropriate. The TPS763xx also features internal current limiting and thermal protection. During normal operation, the TPS763xx limits output current to approximately 800 mA. When current limiting engages, the output voltage scales back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross device failure, care should be taken not to exceed the power dissipation ratings of the package. If the temperature of the device exceeds 165C, thermal-protection circuitry shuts it down. Once the device has cooled down to below 140C, the regulator operation resumes. 14 PACKAGE OPTION ADDENDUM www.ti.com 17-Aug-2012 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76301QDBVRQ1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76316QDBVRG4Q1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76316QDBVRQ1 ACTIVE SOT-23 DBV 5 TPS76318QDBVRG4Q1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76318QDBVRQ1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76325QDBVRG4Q1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 3000 Green (RoHS & no Sb/Br) TPS76325QDBVRQ1 ACTIVE SOT-23 DBV 5 TPS76330QDBVRG4Q1 ACTIVE SOT-23 DBV 5 TBD TBD Call TI Call TI Samples (Requires Login) TPS76301QDBVRG4Q1 TBD (3) Call TI Call TI CU NIPDAU Level-1-260C-UNLIM TPS76330QDBVRQ1 ACTIVE SOT-23 DBV 5 TPS76333QDBVRG4Q1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Call TI Call TI TPS76333QDBVRQ1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76350QDBVRG4Q1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TPS76350QDBVRQ1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 17-Aug-2012 TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. OTHER QUALIFIED VERSIONS OF TPS76301-Q1, TPS76316-Q1, TPS76318-Q1, TPS76325-Q1, TPS76330-Q1, TPS76333-Q1, TPS76350-Q1 : * Catalog: TPS76301, TPS76316, TPS76318, TPS76325, TPS76330, TPS76333, TPS76350 NOTE: Qualified Version Definitions: * Catalog - TI's standard catalog product Addendum-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. 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