Analog Microelectronics AME8802NEEV, AME8802MEEV, AME8802LEEV, AME8802KEEV, AME8802JEEV Datasheet
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Analog Microelectronics, Inc.
AME8802
nn
n General Description
nn
The AME8802 family of positive, linear regulators feature low quiescent current (30µA typ.) with low dropout
voltage, making them ideal for battery applications. The
space-saving SOT-23-5 package is attractive for
"Pocket" and "Hand Held" applications.
These rugged devices have both Thermal Shutdown,
and Current Fold-back to prevent device failure under
the "Worst" of operating conditions.
An additional feature is a "Power Good" detector, which
pulls low when the output is out of regulation.
The AME8802 is stable with an output capacitance of
2.2µF or greater.
300mA CMOS LDO
nn
n Features
nn
l Very Low Dropout Voltage
l Guaranteed 300mA Output
l Accurate to within 1.5%
l 30µA Quiescent Current
l Over-Temperature Shutdown
l Current Limiting
l Short Circuit Current Fold-back
l Power Good Output Function
l Power-Saving Shutdown Mode
l Space-Saving SOT-25 (SOT-23-5)
l Factory Pre-set Output Voltages
l Low Temperature Coefficient
nn
n Applications
nn
nn
n Functional Block Diagram
nn
IN
Overcurrent
Shutdown
Thermal
Shutdown
EN
x110%
V
PG
ref
V
ref
x90%
AMP
V
=1.215V
ref
**
R1
R2
OUT
GND
l Instrumentation
l Portable Electronics
l Wireless Devices
l Cordless Phones
l PC Peripherals
l Battery Powered Widgets
l Electronic Scales
nn
n T ypical Application
nn
IN
IN
AME8802
GND
C1
5V
µ
F
1
OUT
ENPG
OUT
C2
2.2
µ
F
** If output voltage specification is lower than 1.215V, Vref will be
trimmed to 1.2V.
1
Analog Microelectronics, Inc.
AME8802
nn
n Pin Configuration
nn
SOT-25 Top View
5
12 3
nn
n Ordering Information
nn
Part Number Marking Output Voltage Package Operating Temp. Range
AME8802AEEV AAKww 3.3V SOT-25
AME8802BEEV AALww 3.0V SOT-25
AME8802CEEV AAMww 2.8V SOT-25
4
1. V
IN
2. GND 5. OUT
3. EN
4. PG
300mA CMOS LDO
O
-40
C to +85OC
-4 0OC to +85OC
O
C to +85OC
-4 0
AME8802DEEV AANww 2.5V SOT-25
AME8802EEEV AAOww 3.8V SOT-25
AME8802FEEV ABPww 3.6V SOT-25
AME 8802GEEV AC Gww 3.5V S OT-25
AME8802HEEV AEHww 2.7V SOT-25
AME8802IEEV AEPww 3.4V SOT-25
AME 8802JEEV A GRww 2.85V SOT-25
AME 8802KE EV AHTww 3.7V S OT-25
AME8802LEEV AJMww 1.5V SOT-25
AME8802MEEV AJNww 1.8V SOT-25
AME8802NEEV AKQww 2.9V SOT-25
AME8802OEEV AKRww 3.1V SOT-25
AME8802TEEV ARVww 1.2V SOT-25
AME8802UEEV ASDww 3.2V SOT-25
-4 0OC to +85OC
-4 0OC to +85OC
O
C to +85OC
-4 0
-4 0OC to +85OC
-4 0OC to +85OC
O
C to +85OC
-4 0
-4 0OC to +85OC
-4 0OC to +85OC
O
C to +85OC
-4 0
-4 0OC to +85OC
-4 0OC to +85OC
O
C to +85OC
-4 0
-4 0OC to +85OC
-4 0OC to +85OC
# represents the date code
Please consult AME sales office or authorized Rep./Distributor for other output voltage
and package type availability.
2
Analog Microelectronics, Inc.
e
AME8802
nn
n Absolute Maximum Ratings
nn
Paramete r Maximum Unit
Input Vol t age 8 V
Output Current P
Output V ol t age GND - 0.3 to V
ESD Classification B
nn
n Recommended Operating Conditions
nn
Para m eter Rating Unit
Am bient Temperature Range -40 to +85
Juncti on Temperature -40 to +125
/ (VIN - VO)mA
D
+ 0.3 V
IN
300mA CMOS LDO
o
C
o
C
nn
n Thermal Information
nn
Parameter
Thermal Resistance (
Internal P o wer Diss i pation (P
o
(∆T = 100
Max i mum Junc t ion Temperature
Maximum Lead Temperat ure ( 10 S ec)
Caution : Stress abo ve the l i sted absol u te rating m ay cau se perman ent damage to the devi c
C)
) SOT-25 260
θ
ja
)
D
SOT-25 380 mW
Maximum Unit
150
300
o
C / W
o
o
C
C
3
Analog Microelectronics, Inc.
AME8802
nn
n Electrical Specifications
nn
TA = 25oC unles s ot herwise not ed
Pa rameter Symbol Min Typ Ma x Units
Input V olt age V
Outp ut Volt age A c curac y V
Dropout V olt age V
Outp ut Current I
Curren t Li mit I
Sh ort C ircui t Cu rren t I
Quies cent Current I
Ground P in Current I
Line Regulation REG
Load Regulat ion REG
IN
O
DR OPOU T
O
LIM
SC
Q
GND
LINE
LOAD
I
O
V
O=VONOM
V
IN=VO
Over Temerature S hut down OTS 150
Over Temera t ure Hys t e ri s i s OTH 30
Temperature Coefficien t TC 30
V
O
I
Power Supply Reject ion
PSRR f=10kHz 20 dB
Outp ut Volt age Noise eN
EN Input Threshold
EN Input B ias Current
Shutdown Supply Current I
Shut do wn Out put Voltag e V
V
V
I
I
O,SD
EH
EL
SD
Outp ut Und er V olt age V
Outp ut O ver Voltag e V
PG Leak a ge Current I
LC
PG V oltage Rating V
PG Voltage Low V
Note1:V
IN(min)=VOUT+VDROPOUT
EH
EL
UV
OV
PG
OL
O
C
f= 10Hz to 100kHz
I
O
4
Test Condition
I
=1mA
O
1.2V<V
=300m A
-2.0%
=1mA to 300mA
I
O
IO=1mA
+1 to VO+2
=1mA to 300mA
I
O
V
O
V
O
V
O
I
O
2.0V < V
>1.2V
>1.2V
<0.8V
=0mA
2.0V<=V
=100m A
=2.2µF
O
=10mA
V
=2.7V to 7V
IN
=2.7V to 7V
V
IN
V
V
, VIN=2.7V to 7V
EN=VIN
=0V, VIN=2.7V to 7V
EN
VIN=5V, VO=0V, VEN<V
I
=0.4mA, VEN<V
O
2.5V <=Vo <= 5.0V
1.2V <= Vo < 2.5V
2.5V <=Vo <= 5.0V
1.2V <= Vo < 2.5V
V
=7V
PG
in regulation
V
O
I
=0.4mA
SINK
Note 1 7 V
-1.5 1.5 %
<=2.0V 1300
O(NOM)
<=2.8V 400
O(NOM)
2.8V < V
O(NOM)
300 mA
300 450 mA
< 2.0V -0.15 0.15 %
V
O
< 4. 0V -0. 1 0.02 0.1 %
O
4.0V <= Vo
-0.4 0.2 0.4 %
-1 0. 2 1 %
f=1kHz 50
f=100kHz 15
Co=2.2µF30
2.0 Vin V
00.4V
EL
EL
00.4V
115
125
300mA CMOS LDO
See
chart
300
150 300 mA
30 50
35
0.1
0.5
0.5 1
85
75
1
7V
0.4 V
ppm/
µ
%V
%V
mV
A
µ
A
µ
o
C
o
C
Vrms
A
µ
A
µ
A
µ
O(NOM)
O(NOM)
A
µ
o
C
Analog Microelectronics, Inc.
AME8802
nn
n Detailed Description
nn
The AME8802 family of CMOS regulators contain a
PMOS pass transistor, voltage reference, error amplifier, over-current protection, thermal shutdown, and
power good function.
The P-channel pass transistor receives data from the
error amplifier, over-current shutdown, and thermal protection circuits. During normal operation, the error amplifier compares the output voltage to a precision reference. Over-current and Thermal shutdown circuits become active when the junction temperature exceeds
150oC, or the current exceeds 300mA. During thermal
shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops
below 120oC.
The AME8802 switches from voltage mode to current
mode when the load exceeds the rated output current.
This prevents over-stress. The AME8802 also incorporates current foldback to reduce power dissipation
when the output is short circuited. This feature becomes
active when the output drops below 0.8volts, and reduces the current flow by 65%. Full current is restored
when the voltage exceeds 0.8 volts.
300mA CMOS LDO
nn
n Enable
nn
The Enable pin normally floats high. When actively,
pulled low, the PMOS pass transistor shuts off, and all
internal circuits are powered down. In this state, the
quiescent current is less than 1µA. This pin behaves
much like an electronic switch.
nn
n Power Good
nn
The AME8802 includes the Power Good feature. Normally, Pin 4 is "Floating", however, when the output is
not within ±10% of the specified voltage, it pulls low.
This can occur under the following conditions:
1) Input Voltage too low.
2) During Over-Temperature.
3) During Over-Current.
4) If output is pulled up.
nn
n External Capacitors
nn
The AME8802 is stable with an output capacitor to
ground of 2.2µF or greater. Ceramic capacitors have
the lowest ESR, and will offer the best AC performance.
Conversely, Aluminum Electrolytic capacitors exhibit
the highest ESR, resulting in the poorest AC response.
Unfortunately, large value ceramic capacitors are comparatively expensive. One option is to parallel a 0.1µF
ceramic capacitor with a 10µF Aluminum Electrolytic.
The benefit is low ESR, high capacitance, and low overall cost.
A second capacitor is recommended between the input
and ground to stabilize Vin. The input capacitor should
be at least 0.1uF to have a beneficial effect.
All capacitors should be placed in close proximity to
the pins. A "Quiet" ground termination is desirable.
This can be achieved with a "Star" connection.
5
Analog Microelectronics, Inc.
AME8802
45
40
35
A)
µ
µµ
µ
30
25
20
15
10
Ground Current (
5
0
012345678
Ground Current vs. Input Voltage
85OC
25OC
Input Voltage (V)
Chip Enable Transient Response
300mA CMOS LDO
Load Step ( 1mA-300mA)
Output
I
Load
(200mA/DIV) Vo(5mV/DIV)
L
I
TIME( 20mS/DIV)
Chip Enable Transient Response
CL=2.2µF
C
=2.2µF
IN
0
CL=2µF
R
=10
Ω
L
C
=1000pF
BYP
Output (1V/DIV) Enable (2V/DIV)
TIME ( 1mS/DIV)
Drop Out Voltage vs Output Voltage
300
250
200
150
100
Drop Out Voltage (mV)
50
I
LOAD
I
LOAD
I
LOAD
=200mA
=100mA
=300mA
CL=2µF
R
=10
Ω
0
0
Output (1V/DIV) Enable (2V/DIV)
L
0
0
TIME ( 1mS/DIV)
Drop Out Voltage vs Load Current
250
Top to bottom
V
=2.5V
200
150
100
50
Dropout Voltage (mV)
V
V
V
V
V
OUT
OUT
OUT
OUT
OUT
OUT
=2.8V
=3.0V
=3.3V
=3.5V
=3.8V
0
2.5 2.75 3 3.25 3.5 3.75 4
6
Output Voltage (V)
0
0 50 100 150 200 250 300
Load Current (mA)
Analog Microelectronics, Inc.
AME8802
Power Supply Rejection Ratio
0
-10
-20
CL=2.2µF Tantalum
C
-30
-40
-50
PSRR (dB)
100mA
-60
-70
100µA
-80
1.0E+01 1.0E+03 1.0E+05 1.0E+07
Short Circuit Response
R
=100
LOAD
R
=0.1
SHORT
=0
BYP
100µA
Frequency (Hz)
Ω
Ω
300mA CMOS LDO
100mA
10mA
1mA
Overtemperature Shutdown
(400mA/DIV)
LOAD
(1V/DIV) I
OUT
V
Current Limit Response
(200mA/DIV)
OUT
(1V/DIV) I
OUT
V
TIME (2mS/DIV)
R
TIME (2mS/DIV)
LOAD
=3.3
(200mA/DIV)
OUT
R
LOAD
=6.6
Ω
0
0
(1V/DIV) I
OUT
V
0
TIME (0.5Sec/DIV)
0
Noise Measurement
Ω
0
Vo (1mV/ DIV)
0
TIME (20mS/DIV)
CL = 2.2µF
NO FILTER
7
Analog Microelectronics, Inc.
AME8802
10000
1000
100
ΩΩ
Ω)
10
ESR (Ω
1
0.1
0.01
0 50 100 150 200
10000
1000
100
)
Ω
ΩΩ
Ω
10
ESR (
1
Stability vs. ESR vs I
Unstable Region
Stable Region
Untested Region
ILOAD (mA)
Stability vs. ESR vs I
Unstable Region
Stable Region
LOAD
CL=1µF
LOAD
CL=3µF
300mA CMOS LDO
Stability vs. ESR vs I
10000
1000
)
Ω
ΩΩ
Ω
ESR (
)
Ω
ΩΩ
Ω
ESR (
Unstable Region
100
10
1
0.1
0.01
0 50 100 150 200
Stable Region
Untested Region
ILOAD (mA)
Stability vs. ESR vs I
10000
1000
Unstable Region
100
10
1
0.1
Stable Region
LOAD
CL=2µF
LOAD
CL=10µF
0.1
0.01
0 50 100 150 200
Untested Region
ILOAD (mA)
Transient Line Response
(1V/DIV)
IN
V
= 5.0V
IN DC
0.01
0.001
0 50 100 150 200
Untested Region
ILOAD (mA)
Safe Operating Area
300
SOT-23-5
100
Output Current (mA)
(1mV/DIV) V
O
V
8
TIME (2mS/DIV)
10
0.1
1.0
Input-Output Voltage Differential (V)
8.0
Analog Microelectronics, Inc.
AME8802
35
34
33
32
31
(uA)
30
29
28
Quiescent Current @ 5V
27
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Shut Down Current (uA)
0.0
Quiescent Current vs. Temp.
-45 -5 25 55 85
Tem perature (0C)
Shut Down Current vs.Temp.
-45 -5 25 55 85
Temperature (0C)
300mA CMOS LDO
Load Regulation vs. Temp.
0.58
0.56
0.54
0.52
0.50
0.48
0.46
0.44
Load Regulation (%)
0.42
0.40
-45 -5 25 55 85
Tem perature (0C)
EN Pin LO Bias Current vs.Temp
-0.20
-0.25
-0.30
-0.35
-0.40
-0.45
-0.50
EN pin LO bias current (uA)
-45 -5 25 55 85
Temperature (0C)
Dropout Voltage vs. Temp.
220
210
200
190
(mV)
180
170
160
Dropout Voltage @ 300mA
150
-45-5255585
Temperature (0C)
PG VOL vs.Temp.
0.45
0.40
0.35
0.30
0.25
0.20
PG VOL @ 0.4mA (V)
0.15
-45 -5 25 55 85
Tem perature (0C)
9
Analog Microelectronics, Inc.
AME8802
nn
n Package Dimension
nn
SOT-25
300mA CMOS LDO
SY M BOLS
A 1.00 1.45 0.0394 0.0571
A
1
A2 0.70 1.25 0.0276 0.0492
b 0.35 0.55 0.0138 0.0217
C 0.08 0.25 0.0031 0.0098
D 2.70 3.10 0.1063 0.1220
E 1.40 1.80 0.0551 0.0709
e
H 2.60 3.00 0.1024 0.1181
L 0.30 - 0.0118 -
θ1
θ1
θ1θ1
S
1
MILLIMETERS INCHES
MIN MAX MIN MAX
0.00 0.15 0.0000 0.0591
1.90 BSC 0.07480 BSC
°
0
0.85 1.05 0.0335 0.0413
°
10
°
0
°
10
10
www.analogmicro.com
E-Mail: info@analogmicro.com
Life Support Policy:
These products of Analog Microelectronics, Inc. are not authorized for use as critical components in life-
support devices or systems, without the express written approval of the president
of Analog Microelectronics, Inc.
Analog Microelectronics, 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.
Analog Microelectronics, Inc., August 2001
Document: 2006-DS8802-E
Corporate Headquarters Asia Pacific Headquarters
Analog Microelectronics, Inc. AME, Inc.
3100 De La Cruz Blvd. Suite 201 2F, 187 Kang-Chien Road, Nei-Hu District
Santa Clara, CA. 95054-2046 Taipei 114, Taiwan, R.O.C.
Tel : (408) 988-2388 Te l : 886 2 2627-8687
Fax: (408) 988-2489 Fax : 886 2 2659-2989
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