AME, Inc.
1
AME8822 High PSRR, 250mA CMOS LDO
Rev.D.05
n Typical Application
n Functional Block Diagram
l Very Low Dropout Voltage
l Fast Turn on Time 100µS(Typ.)
l Guaranteed 250mA Output
l 30µA Quiescent Current
l Over-Temperature Shutdown
l Excellent PSRR (Typ. 65dB)
l Power-Saving Shutdown Mode in SOT-25,
SOT-23 & SC-70-5 Packages
l Low Temperature Coefficient
l All AME's Lead Free Products Meet RoHS
Standards.
The AME8822 family of positive, linear regulators fea-
ture low quiescent current (30µA typ.) low dropout volt-
age and excellent PSRR, thus making them ideal for tele-
communications and other battery applications.
These rugged devices have both thermal shutdown and
current limit to prevent device failure under the "Worst"
operating conditions.
The AME8822 is stable with an output capacitance of
1µF or larger.
l Instrumentation
l Portable Electronics
l Wireless Devices
l PC Peripherals
n General Description
n Features
n Applications
1µF
OUT
IN
C2
AME8822
GND
OUT
IN
C1
1µF
1µF
OUT
IN
C2
AME8822
GND
OUT
IN
C1
1µF
EN
GND
OUT
IN
Overcurrent
Shutdown
Thermal
Shutdown
EN
Vref
AMP
R1
R2
-
+
AME, Inc.
2
High PSRR, 250mA CMOS LDOAME8822
Rev.D.05
n Pin Configuration
AME8822AEEV
1. IN
2. GND
3. EN
4. NC
5. OUT
* Die Attach:
Conductive Epoxy
SOT-25
Top View SOT-23
Top View AME8822AEET
1. GND
2. OUT
3. IN
* Die Attach:
Non-Conductive Epoxy
1 32
5 4
AME8822
1 2
3
AME8822
AME8822AEET SOT-23
SC-70-5
Top View
1 32
5 4
AME8822
AME8822AEIV
1. IN
2. GND
3. EN
4. NC
5. OUT
* Die Attach:
Conductive Epoxy
n Pin Description
Pin Number Pin Name Pin Description
1GND Ground connection pin.
2OUT LDO voltage regulator output pin.
It should be decoupled with a 1mF or greater value low ESR ceramic
capacitor.
3IN Input voltage pin.
It should be decoupled with 1mF or greater capacitor.
AME, Inc.
3
AME8822 High PSRR, 250mA CMOS LDO
Rev.D.05
Pin Number Pin Name Pin Description
1IN Input voltage pin.
It should be decoupled with 1mF or greater capacitor.
2GND Ground connection pin.
3EN Enable pin.
When pulled low, the PMOS pass transistor turns off, current consuming
less than 1mA.
4NC No Connection.
5OUT LDO voltage regulator output pin.
It should be decoupled with a 1mF or greater value low ESR ceramic
capacitor.
n Pin Description
AME8822AEEV SOT-25 / AME8822AEIV SC-70-5
AME, Inc.
4
High PSRR, 250mA CMOS LDOAME8822
Rev.D.05
n Ordering Information
Operating Ambient Temperature Range
Number of Pins
Package Type
Pin Configuration
Special Feature
AME8822 x x x x xxx x
Output Voltage
A:
1. IN
E:
-40
O
C to 85
O
C
E:
SOT-2X
T:
3
V=1.2V
Z:
Lead free
(SOT-25)
2. GND
I:
SC-70
V:
5
V=1.3V
3. EN
V=1.5V
4. NC
V=1.8V
5. OUT
V=2.5V
V=2.6V
A: 1. GND 270: V=2.7V
(SOT-23)
2. OUT
V=2.8V
3. IN
V=2.9V
V=2.85V
A:
1. IN
V=3.0V
(SC-70-5)
2. GND
V=3.1V
3. EN
V=3.3V
4. NC
5. OUT
Special Feature
Pin
Configuration Output Voltage
Operating Ambient
Temperature Range Package
Type
Number
of
Pins
AME, Inc.
5
AME8822 High PSRR, 250mA CMOS LDO
Rev.D.05
n Ordering Information
Part Number Marking* Output Voltage Package Operating Ambient
Temperature Range
AME8822AEEV120Z BIWww 1.2V SOT-25 - 40oC to 85oC
AME8822AEEV150Z BHKww 1.5V SOT-25 - 40oC to 85oC
AME8822AEEV180Z BHLww 1.8V SOT-25 - 40oC to 85oC
AME8822AEEV250Z BHMww 2.5V SOT-25 - 40oC to 85oC
AME8822AEEV270Z BHQww 2.7V SOT-25 - 40oC to 85oC
AME8822AEEV280Z BHNww 2.8V SOT-25 - 40oC to 85oC
AME8822AEEV285Z BHUww 2.85V SOT-25 - 40oC to 85oC
AME8822AEEV300Z BHOww 3.0V SOT-25 - 40oC to 85oC
AME8822AEEV310Z BHRww 3.1V SOT-25 - 40oC to 85oC
AME8822AEEV330Z BHPww 3.3V SOT-25 - 40oC to 85oC
AME8822AEET120Z BJJww 1.2V SOT-23 - 40oC to 85oC
AME8822AEET150Z BFZww 1.5V SOT-23 - 40oC to 85oC
AME8822AEET180Z BFOww 1.8V SOT-23 - 40oC to 85oC
AME8822AEET250Z BGAww 2.5V SOT-23 - 40oC to 85oC
AME8822AEET280Z BGBww 2.8V SOT-23 - 40oC to 85oC
AME8822AEET300Z BGCww 3.0V SOT-23 - 40oC to 85oC
AME8822AEET330Z BGDww 3.3V SOT-23 - 40oC to 85oC
AME8822AEIV150Z BJMw 1.5V SC-70-5 - 40oC to 85oC
AME8822AEIV180Z BJNw 1.8V SC-70-5 - 40oC to 85oC
AME8822AEIV280Z BJKw 2.8V SC-70-5 - 40oC to 85oC
AME8822AEIV285Z BJLw 2.85V SC-70-5 - 40oC to 85oC
AME, Inc.
6
High PSRR, 250mA CMOS LDOAME8822
Rev.D.05
n Ordering Information
Note: ww represents the date code and pls refer to Date Code Rule page on Package Dimension.
* A line on top of the first letter represents lead free plating such as BIWww.
Please consult AME sales office or authorized Rep./Distributor for the availability of package type.
Part Number Marking* Output Voltage Package Operating Ambient
Temperature Range
AME8822AEEV130Z BLDww 1.3V SOT-25 - 40oC to 85oC
AME8822AEEV260Z BTUww 2.6V SOT-25 - 40oC to 85oC
AME8822AEEV290Z BTVww 2.9V SOT-25 - 40oC to 85oC
AME, Inc.
7
AME8822 High PSRR, 250mA CMOS LDO
Rev.D.05
Parameter Symbol Rating Unit
Ambient Temperature Range TA- 40 to 85 oC
Junction Temperature Range TJ- 40 to 125 oC
Storage Temperature Range TSTG - 65 to 150 oC
n Absolute Maximum Ratings
n Recommended Operating Conditions
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
HBM B*: 2000V ~ 3999V
n Thermal Information
* Measure θJC on backside center of molding compund if IC has no tab.
** MIL-STD-202G 210F
Parameter Maximum Unit
Input Voltage -0.3 to 7 V
EN Voltage -0.3 to 7 V
Output Voltage - 0.3 to VIN + 0.3 V
Output Current PD / (VIN - VOUT)mA
ESD Classification B*
Parameter Package Die Attach Symbol Maximum Unit
SOT-23 Non-Conductive
Epoxy 280
SOT-25 260
SC-70-5 331
SOT-23* Non-Conductive
Epoxy 140
SOT-25* Conductive Epoxy 81
SOT-23 Non-Conductive
Epoxy 400
SOT-25 400
SC-70-5 300
150 oC
350 oC
mW
Thermal Resistance
(Junction to Case) θJC
oC / W
Conductive Epoxy
Conductive Epoxy
Maximum Junction Temperature
Solder Iron (10 Sec)**
Thermal Resistance
(Junction to Ambient)
Internal Power Dissiption
θJA
PD
AME, Inc.
8
High PSRR, 250mA CMOS LDOAME8822
Rev.D.05
n Electrical Specifications (Contd.)
Note1: If VOUT(nom) > 2.0V, VIN(min)=VOUT(nom)+VDROPOUT . If VOUT(nom) <= 2.0V, VIN(min) = 2.5V.
Note2: Line Regulation =
Note3: Load Regulation = )(
%100
mAI
Vout
Vout
∆
×
∆
Vout
Vin
Vout %100×
∆
∆
≤
VOUT(nom) > 2.0V, VIN=VOUT(nom)+0.5V; VOUT 2V, VIN=2.5V, VEN=VIN, TJ = -40 to 125OC,CIN=COUT=1µF,
unless otherwise noted.
Parameter Symbol Min Typ Max Units
Input Voltage VIN Note1 5.5 V
-1.5 1.5
-3 3
Current Limit ILIM 350 500
Short Circuit Limit ISC 200
Quiescent Current IQ30 45 µA
-0.25 0.1 0.25
-0.4 0.4
-0.4 0.2 0.4
-0.6 0.6
Over Temperature Shutdown OTS 160 oC
Over Temperature Hysterisis OTH 40 oC
VOUT Temperature Coefficient TC 30 ppm/oC
Power Supply Ripple Rejection PSRR 65 dB
TA=25oC
%/mA
IOUT=0mA
IOUT=0mA
0.02
-0.04 0.004
Test Condition
%/V
IOUT=250mA
300 500
VIN=VOUT +0.5V to VIN=5.5V
Line Regulation
(See Note 2) REGLINE
mV
TA=25oCIOUT
=1mA, VOUT<=2.0V
VIN=2.5V to VIN=5.5V
VOUT>2.0V
VOUT<=2.0V, VDROPOUT=2.5V-VOUT
IOUT=250mA
VOUT=VOUT(nom) -2%VOUT(nom)
IOUT=1mA, VOUT
>2.0V
Load Regulation
(See Note 3) REGLOAD
Dropout Voltage
(See Note 1) VDROPOUT
Output Voltage Accuracy VOUT(nom)
VIN=5V, 1mA<IOUT
<250mA
VOUT=0V
VOUT=3.3V, IOUT=100mA, COUT=10µF,
V
IN
=V
OUT
+1V, f=1kHz
0.04
IOUT = 1 to 250mA
-0.02 0.0025
TJ=-40 to 125oC
TJ=-40 to 125oC
TA=25oCVOUT
=0.8xVOUT(nom)
TA=25oC
VOUT<=2.0V
VIN=2.5V
VOUT>2.0V
VIN=VOUT
+0.5V
TA=25oCmA
IOUT
=1mA TA=25oC
TJ=-40 to 125oCIOUT
=1mA %
AME, Inc.
9
AME8822 High PSRR, 250mA CMOS LDO
Rev.D.05
Parameter Symbol Min Typ Max Units
VENH 1.4 VIN V
VENL 00.3 V
Enable Input Bias Current* IEN 0.01 1µA
Shutdown Supply Current* ISD 0.5 1µA
Shutdown Output Voltage* VO,SD 0.2 V
IOUT=1mA
Test Condition
VOUT<=0.2V
VIN=5V, VEN =0V
VOUT>=VOUT(min)
VIN=5V, EN=0V or 5V
f=10Hz to 100kHz, IOUT=10mA Output Voltage Noise eN
Enable Input Threshold*
µVrms40
n Electrical Specifications
* These parameters are applicable to part numbers with enable function.
AME, Inc.
10
High PSRR, 250mA CMOS LDOAME8822
Rev.D.05
The AME8822 is stable with an output capacitor to
ground of 1µF or larger. Ceramic capacitors have the low-
est ESR, and will offer the best AC performance. Con-
versely, Aluminum Electrolytic capacitors exhibit the high-
est ESR, resulting in the poorest AC response.
A second capacitor is recommended between the in-
put and ground to stabilize V
IN. The input capacitor should
be at least 1µF to have a beneficial effect.
n Detailed Description
n External Capacitors
n Enable
The Enable Pin is normally pull-high. When activated
pulled low, the PMOS pass transistor shuts off, and all
internal circuits are powered down. In this state, the stand
by current is less than 1µA. This pin can’t be floating.
The AME8822 family of CMOS regulators contain a
PMOS pass transistor, voltage reference, error amplifier,
over-current protection, and thermal shutdown.
The P-channel pass transistor receives data from the
error amplifier, over-current shutdown, and thermal pro-
tection circuits. During normal operation, the error ampli-
fier compares the output voltage to a precision reference.
Over-current and thermal shutdown circuits become ac-
tive when the junction temperature exceeds 150oC, or
the current exceeds 250mA. During thermal shutdown,
the output voltage remains low. Normal operation is re-
stored when the junction temperature drops below 130oC.
The AME8822 switches from voltage mode to current
mode when the load exceeds the rated output current.
This prevents over-stress.
AME, Inc.
11
AME8822 High PSRR, 250mA CMOS LDO
Rev.D.05
Dropout Voltage vs Temperature
Output Voltage vs Load Current
Output Impedance vs Frequency
Line Transient ResponseLoad Transient Response
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
10 100 1000 10000 100000 1000000
IO=50mA
IO=100mA
O
u
t
p
u
t
I
m
p
e
d
a
n
c
e
(
Ω
)
Frequency (Hz)
Output Voltage vs Temperature
Load Current (mA)
Output Voltage (V)
1.780
1.785
1.790
1.795
1.800
1.805
1.810
1.815
1.820
0 50 100 150 200 250
VIN=2.8V
Output Voltage (V)
Temperature (oC)
1.790
1.795
1.800
1.805
1.810
1.815
-40 -25 -10 520 35 50 65 80 95 110 125
VIN=2.8V
IO=1mA
IO=250mA
0
50
100
150
200
250
300
350
400
450
500
550
600
650
700
-40 -25 -10 520 35 50 65 80 95 110 125
Temperature (oC)
Dropout Voltage (mV)
VIN=2.8V
Io=250mA
Input Voltage
(V)
Output Voltage
(mV)
5.3
20
-20
4.3
Time (µs)
Output Voltage
(mV)Output Current
(mA)
200
-50
0
50
0
100
Time (µs)
VIN=2.8V
∆i
∆t=25mA/µs
AME, Inc.
12
High PSRR, 250mA CMOS LDOAME8822
Rev.D.05
Quiescent Current vs Temperature
Rising Time
EN
VOUT
20µs/div
3.8V
3.3V
0
5
10
15
20
25
30
35
40
-40 -25 -10 520 35 50 65 80 95 110 125
Q
u
i
e
s
c
e
n
t
C
u
r
r
e
nt (µA)
Temperature (oC)
AME, Inc.
13
AME8822 High PSRR, 250mA CMOS LDO
Rev.D.05
n Date Code Rule
Year
AAAWWxxx0
AAAWWxxx1
AAAWWxxx2
AAAWWxxx3
AAAWWxxx4
AAAWWxxx5
AAAWWxxx6
AAAWWxxx7
AAAWWxxx8
AAAWWxxx9
Marking Date Code
Year
AAA xxx0
AAA xxx1
AAA xxx2
AAA xxx3
AAA xxx4
AAA xxx5
AAA xxx6
AAA xxx7
AAA xxx8
AAA xxx9
W
W
W
W
W
W
W
W
Marking Date Code
W
W
For SC-70 Package Only
A: 01&02 K: 21&22 U: 41&42
B: 03&04 L: 23&24 V: 43&44
C: 05&06 M: 25&26 W: 45&46
D: 07&08 N: 27&28 X: 47&48
E: 09&10 O: 29&30 Y: 49&50
F: 11&12 P: 31&32 Z: 51&52
G: 13&14 Q: 33&34
H: 15&16 R: 35&36
I: 17&18 S: 37&38
J: 19&20 T: 39&40
w: Work Week Code
For SOT-23/SOT-25 Package Only
AME, Inc.
14
High PSRR, 250mA CMOS LDOAME8822
Rev.D.05
Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size
SOT-23 8.0±0.1 mm 4.0±0.1 mm 3000pcs 180±1 mm
n Tape and Reel Dimension
Carrier Tape, Number of Components Per Reel and Reel Size
SOT-23
PIN 1
W
P
AME AME
Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size
SOT-25 8.0±0.1 mm 4.0±0.1 mm 3000pcs 180±1 mm
SOT-25
W
P
AME AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
AME, Inc.
15
AME8822 High PSRR, 250mA CMOS LDO
Rev.D.05
n Tape and Reel Dimension
SC-70-5
W
P
AME AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size
SC-70-5 8.0±0.1 mm 4.0±0.1 mm 3000pcs 180±1 mm
AME, Inc.
16
High PSRR, 250mA CMOS LDOAME8822
Rev.D.05
n Package Dimension
SOT-23
MIN MAX MIN MAX
A1.00 1.40 0.0394 0.0551
A10.00 0.15 0.0000 0.0059
b0.35 0.50 0.0138 0.0197
C0.09 0.25 0.0035 0.0098
D2.70 3.10 0.1063 0.1220
E1.40 1.80 0.0551 0.0709
e
H2.40 3.00 0.09449 0.11811
L
θ10o10o0o10o
SYMBOLS MILLIMETERS INCHES
1.90 BSC 0.0748 BSC
0.35BSC 0.0138BSC
b
θ1
C
D
H
E
e
L
A
A1
Top View Side View
Front View
SOT-25
L
Top View Side View
Front View
θ1
D
S1
e
E
H
A1
b
A
MIN MAX MIN MAX
A
A10.00 0.15 0.0000 0.0059
b0.30 0.55 0.0118 0.0217
D2.70 3.10 0.1063 0.1220
E1.40 1.80 0.0551 0.0709
e
H2.60 3.00 0.10236 0.11811
L
θ10o10o0o10o
S1
0.37BSC 0.0146BSC
0.95BSC 0.0374BSC
1.90 BSC 0.07480 BSC
SYMBOLS MILLIMETERS INCHES
1.20REF 0.0472REF
AME, Inc.
17
AME8822 High PSRR, 250mA CMOS LDO
Rev.D.05
n Package Dimension
SC-70-5
Top View
Front View
Detail A
Side View
SECTION A-A
D
e1
E1/2
E1
e
b
B
BA
C
C
0.15(0.006)
C
.10(0.004) M
E/2
E
See Detail A
A A
.10(0.004)
BASE METAL
C
A2
A1
A
0.15(0.006)
GAGE
PLANE
Lθ
θ1
H
.15(.0059)
b1
(b)
c1 c
C
SEATING PLANE
D
MIN MAX MIN MAX
A0.80 1.10 0.031 0.043
A1 0.00 0.10 0.000 0.004
A2 0.80 1.00 0.031 0.040
b0.15 0.30 0.006 0.012
b1 0.15 0.25 0.006 0.010
c0.08 0.25 0.003 0.010
c1 0.08 0.20 0.003 0.008
D1.90 2.15 0.074 0.084
E2.00 2.20 0.078 0.086
E1 1.15 1.35 0.045 0.055
e
e1
L0.26 0.46 0.010 0.018
θ10o8o0o8o
θ24o10o4o10o
0.65BSC
1.30BSC
0.0255BSC
0.0512BSC
SYMBOLS MILLIMETERS INCHES
Life Support Policy:
These products of AME, Inc. are not authorized for use as critical components in life-support
devices or systems, without the express written approval of the president
of AME, Inc.
AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and
advises its customers to obtain the latest version of relevant information.
AME, Inc. , October 2007
Document: 1003-DS8822-D.05
Corporate Headquarter U.S.A.(Subsidiary)
AME, Inc. Analog Microelectronics, Inc.
2F, 302 Rui-Guang Road, Nei-Hu District 3100 De La Cruz Blvd., Suite 201
Taipei 114, Taiwan. Santa Clara, CA. 95054-2438
Tel: 886 2 2627-8687 Tel : (408) 988-2388
Fax: 886 2 2659-2989 Fax: (408) 988-2489
www.ame.com.tw
E-Mail: sales@ame.com.tw