AME AME8806 600ma cmos ldo Datasheet

Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
600mA CMOS LDO
n General Description
n Features
The AME8806/8809 family of positive, linear regulators feature low quiescent current (30µA typ.) with low
dropout voltage, making them ideal for battery applications. The space-saving SO-8 package is attractive for
"Pocket" and "Hand Held" applications.
l
These rugged devices have both Thermal Shutdown,
and Current Fold-back to prevent device failure under
the "Worst" of operating conditions.
l
l
l
l
l
l
l
l
In applications requiring a low noise, regulated supply,
place a 1000 pF capacitor between Bypass and ground.
l
l
l
The AME8806/8809 is stable with an output capacitance
of 2.2µF or greater.
Very Low Dropout Voltage
Guaranteed 600mA Output
Accurate to within 1.5%
30µA Quiescent Current
Over-Temperature Shutdown
Current Limiting
Short Circuit Current Fold-back
Noise Reduction Bypass Capacitor
Power-Saving Shutdown Mode
Space-Saving SO-8 Package
Factory Pre-set Output Voltages
Low Temperature Coefficient
n Applications
l
l
n Functional Block Diagram
l
l
IN
l
OUT
l
l
Overcurrent
Shutdown
Instrumentation
Portable Electronics
Wireless Devices
Cordless Phones
PC Peripherals
Battery Powered Widgets
Electronic Scales
n Typical Application
Thermal
Shutdown
IN
IN
EN
BYP
AMP
5V
OUT
AME8806
AME8809
BYP
R1
V ref=1.215V
OUT
GND
EN
C1
C2
C3
1µF
1µF
2.2 µF
R2
GND
1
Analog Microelectronics, Inc.
600mA CMOS LDO
AME8806 / 8809 / 8842
n Pin Configuration
SO-8 Top View
SO-8 Top View
IN
OUT
EN
GND
GND
GND
GND
IN
GND
GND
OUT
GND
EN
BYP
BP
GND
AME8809
AME8806
PG
GND
IN
GND
OUT
GND
EN
GND
AME8842
2
Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
600mA CMOS LDO
n Ordering Information
Part Number
AME8806AEHA
AME8806BEHA
AME8806CEHA
AME8806DEHA
AME8806EEHA
AME8806FEHA
AME8806GEHA
AME8806HEHA
AME8806IEHA
AME8806JEHA
AME8806KEHA
AME8806LEHA
AME8806MEHA
AME8806NEHA
AME8806OEHA
Marking
8806
AEHA
yyww
8806
BEHA
yyww
8806
CEHA
yyww
8806
DEHA
yyww
8806
EEHA
yyww
8806
FEHA
yyww
8806
GEHA
yyww
8806
HEHA
yyww
8806
IEHA
yyww
8806
JEHA
yyww
8806
KEHA
yyww
8806
LEHA
yyww
8806
MEHA
yyww
8806
NEHA
yyww
8806
OEHA
yyww
Output
Package
Operating Temp.
3.3V
SO-8
-40OC to +85OC
3.0V
SO-8
-40OC to +85OC
2.8V
SO-8
-40OC to +85OC
2.5V
SO-8
-40OC to +85OC
3.8V
SO-8
-40OC to +85OC
3.6V
SO-8
-40OC to +85OC
3.5V
SO-8
-40OC to +85OC
2.7V
SO-8
-40OC to +85OC
3.4V
SO-8
-40OC to +85OC
2.85V
SO-8
-40OC to +85OC
3.7V
SO-8
-40OC to +85OC
1.5V
SO-8
-40OC to +85OC
1.8V
SO-8
-40OC to +85OC
2.9V
SO-8
-40OC to +85OC
3.1V
SO-8
-40OC to +85OC
3
Analog Microelectronics, Inc.
600mA CMOS LDO
AME8806 / 8809 / 8842
n Ordering Information
Part Number
AME8809AEHA
AME8809BEHA
AME8809CEHA
AME8809DEHA
AME8809EEHA
AME8809FEHA
AME8809GEHA
AME8809HEHA
AME8809IEHA
AME8809JEHA
AME8809KEHA
AME8809LEHA
AME8809MEHA
AME8809NEHA
AME8809OEHA
Marking
8809
AEHA
yyww
8809
BEHA
yyww
8809
CEHA
yyww
8809
DEHA
yyww
8809
EEHA
yyww
8809
FEHA
yyww
8809
GEHA
yyww
8809
HEHA
yyww
8809
IEHA
yyww
8809
JEHA
yyww
8809
KEHA
yyww
8809
LEHA
yyww
8809
MEHA
yyww
8809
NEHA
yyww
8809
OEHA
yyww
Output
Package
Operating Temp.
3.3V
SO-8
-40OC to +85OC
3.0V
SO-8
-40OC to +85OC
2.8V
SO-8
-40OC to +85OC
2.5V
SO-8
-40OC to +85OC
3.8V
SO-8
-40OC to +85OC
3.6V
SO-8
-40OC to +85OC
3.5V
SO-8
-40OC to +85OC
2.7V
SO-8
-40OC to +85OC
3.4V
SO-8
-40OC to +85OC
2.85V
SO-8
-40OC to +85OC
3.7V
SO-8
-40OC to +85OC
1.5V
SO-8
-40OC to +85OC
1.8V
SO-8
-40OC to +85OC
2.9V
SO-8
-40OC to +85OC
3.1V
SO-8
-40OC to +85OC
Please consult AME sales office or authorized Rep./Distributor
4
for other output voltage and package type availability.
Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
600mA CMOS LDO
n Ordering Information
P art N u m b e r
A M E 8842A E HA
A M E 8842B E HA
A M E 8842CE HA
A M E 8842DE HA
A M E 8842E E HA
A M E 8842F E HA
A M E 8842G E HA
A M E 8842HE HA
A M E 8842IE HA
A M E 8842JE HA
A M E 8842K E HA
A M E 8842LE HA
A M E 8842M E HA
A M E 8842NE HA
A M E 8842O E HA
M ark in g
8842
A E HA
y y ww
8842
B E HA
y y ww
8842
CE HA
y y ww
8842
DE HA
y y ww
8842
E E HA
y y ww
8842
F E HA
y y ww
8842
G E HA
y y ww
8842
HE HA
y y ww
8842
IE HA
y y ww
8842
JE HA
y y ww
8842
K E HA
y y ww
8842
LE HA
y y ww
8842
M E HA
y y ww
8842
NE HA
y y ww
8842
O E HA
y y ww
O u tp u t
P ac k ag e
O p e ratin g T em p .
3.3V
S O -8
-40 O C to + 85 O C
3.0V
S O -8
-40 O C to + 85 O C
2.8V
S O -8
-40 O C to + 85 O C
2.5V
S O -8
-40 O C to + 85 O C
3.8V
S O -8
-40 O C to + 85 O C
3.6V
S O -8
-40 O C to + 85 O C
3.5V
S O -8
-40 O C to + 85 O C
2.7V
S O -8
-40 O C to + 85 O C
3.4V
S O -8
-40 O C to + 85 O C
2.85V
S O -8
-40 O C to + 85 O C
3.7V
S O -8
-40 O C to + 85 O C
1.5V
S O -8
-40 O C to + 85 O C
1.8V
S O -8
-40 O C to + 85 O C
2.9V
S O -8
-40 O C to + 85 O C
3.1V
S O -8
-40 O C to + 85 O C
P leas e c ons ult A M E s ales offic e or authoriz ed Rep./Dis tributor
for other output voltage and pac k age ty pe availability .
5
Analog Microelectronics, Inc.
600mA CMOS LDO
AME8806 / 8809 / 8842
n Absolute Maximum Ratings
Parameter
Maximum
Unit
8
V
P D / (V IN - V O)
A
GND - 0.3 to V IN + 0.3
V
Input Voltage
Output Current
Input, Output Voltage
ESD Classification
B
n Recommended Operating Conditions
Parameter
Ambient Temperature Range
Junction Temperature
Rating
Unit
-40 to +85
o
C
-40 to +125
o
C
n Thermal Information
Para meter
Thermal Resistance (θja)
Internal Power Dissipation (P D )
(∆ T = 100oC)
Max imum
123.7
810
Unit
o
C/W
mW
Maximum Junction Temperature
150
o
C
Maximum Lead Temperature ( 10 Sec)
300
o
C
Caution: Stress above the listed absolute rating may cause permanent damage to the device
6
Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
600mA CMOS LDO
n Electrical Specifications
TA = 25 o C unless otherwise noted
Parameter
Symbol
Input Voltage
VIN
Output Voltage Accuracy
VO
Dropout Voltage
VDROPOUT
Test Condition
Min
IO=1mA
Typ
Max
Units
Note 1
8
V
-1.5
1.5
%
1.5V<VO(NOM)<=2.0V
IO=600mA
VO=VONOM -2.0%
1400
See
chart
2.0V<VO(NOM)<=2.8V
2.8V<VO(NOM)<3.8V
800
mV
600
Output Current
IO
VO>1.2V
600
Current Limit
ILIM
VO>1.2V
600
Short Circuit Current
ISC
VO<0.8V
300
600
mA
Quiescent Current
IQ
IO=0mA
30
50
µA
Ground Pin Current
IGND
IO=1mA to 600mA
30
50
µA
0.15
%
0.02
0.1
%
0.2
1
Line Regulation
REGLINE
Load Regulation
REGLOAD
Over Temerature Shutdown
IO=5mA
VO < 2.0V
VIN=VO+1 to VO+2
VO >= 2.0V
IO=1mA to 600mA
OTS
mA
800
150
o
OTH
30
VO Temperature Coefficient
TC
30
Output Voltage Noise
EN Input Threshold
EN Input Bias Current
Shutdown Supply Current
PSRR
eN
IO=100mA
f=1kHz
75
CO=2.2µF ceramic
CBYP=0.01µF
f=10kHz
55
f=100kHz
30
Co=2.2µF
30
Co=100µF
20
f=10Hz to 100kHz
IO=10mA,CBYP=0.01µF
%
o
Over Temerature Hysterisis
Power Supply Rejection
mA
C
C
ppm/oC
dB
µVrms
VEH
VIN=2.7V to 8V
2.0
Vin
V
VEL
VIN=2.7V to 8V
0
0.4
V
IEH
VEN=VIN, VIN=2.7V to 8V
0.1
µA
IEL
VEN=0V, VIN =2.7V to 8V
0.5
µA
ISD
VIN=5V, VO=0V, VEN<VEL
1
µA
0.5
Note1:VIN(min)=VOUT+VDROPOUT
7
Analog Microelectronics, Inc.
600mA CMOS LDO
AME8806 / 8809 / 8842
n Detailed Description
The AME8806/8809 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 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 600mA. During thermal
shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops
below 120oC.
The AME8806/8809 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents over-stress. The AME8806/8809
also incorporates current foldback to reduce power dissipation when the output is short circuited. This feature
becomes active when the output drops below 0.8 volts,
and reduces the current flow by 65%. Full current is
restored when the voltage exceeds 0.8 volts.
n External Capacitors
The AME8806/8809 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 0.1µF to have a beneficial effect.
8
A third capacitor can be connected between the BYPASS pin and GND. This capacitor can be a low cost
Polyester Film variety between the value of 0.001 ~
0.01µF. A larger capacitor improves the AC ripple rejection, but also makes the output come up slowly. This
"Soft" turn-on is desirable in some applications to limit
turn-on surges.
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.
n Enable
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.
Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
600mA CMOS LDO
Load Step ( 1mA-600mA)
Ground Current vs. Input Voltage
Vo(10mV/DIV)
45
35
85 O C
30
25
Output
C L =2.2µF
CIN=2.2µF
25 O C
20
IL(200mA/DIV)
µA)
Ground Current (µ
40
15
10
5
IL o a d
0
0
0
1
2
3
4
5
6
7
8
TIME ( 20mS/DIV)
Input Voltage (V)
Drop Out Voltage vs. Output Voltage
Power Supply Rejection Ratio
0
-10
0.25
IL O A D = 6 0 0 m A
-20
0.2
PSRR (dB)
Drop Out Voltage (V)
0.3
0.15
0.1
C L =2.2 µF Tantalum
C B Y P =0
100mA
-30
-40
-50
10mA
100mA
-60
0.05
-70
0
2
2.5
3
3.5
4
4.5
5
5.5
-80
1.0E+01
100 µA
1.0E+03
Output Voltage (V)
1mA
100 µA
1.0E+05
1.0E+07
Frequency (Hz)
Power Supply Rejection Ratio
Safe Operating Area
-20
600
100mA
C L =2.2µF Tantalum
C B Y P =1000pF
-40
PSRR (dB)
Output Current (mA)
-30
100
-50
0.1
1.0
Input-Output Voltage Differential (V)
8.0
100mA
-60
-70
10
1mA
-80
1.0E+01
10mA
100µA
100µA
1.0E+03
1.0E+05
Frequency (Hz)
1.0E+07
9
Analog Microelectronics, Inc.
600mA CMOS LDO
AME8806 / 8809 / 8842
Noise Measurement
I OUT (200mA/DIV)
Overtemperature Shutdown
0
R L O A D =6.6Ω
VOUT (1V/DIV)
Vo (1mV/ DIV)
CL = 2.2µF
NO FILTER
0
TIME (0.5Sec/DIV)
TIME (20mS/DIV)
I OUT (200mV/DIV)
Short Circuit Response
C L O A D =2.2µF
C I N =1.0µF
R L O A D =3.3Ω
V O U T N O M =3.3V
TIME (2mS/DIV)
TIME (2mS/DIV)
Line Transient Response
0
10
VIN(1V/DIV)
0
VOUT (10mV/DIV)
C L =2µF
R L =10Ω
Output (1V/DIV)
Enable (2V/DIV)
Chip Enable Transient Response
TIME ( 1mS/DIV)
C L O A D =2.2µF
C IN = 1µF
R L O A D < 1 0 0 mΩ
V OUT (1V/DIV)
IOUT (200mA/DIV) VOUT (1V/DIV)
Current Limit Response
C L O A D =2.2µF
IL O A D = 1 m A
V O U T D C =3.3V
V I N D C =4.5V
TIME (200mS/DIV)
Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
600mA CMOS LDO
n Package Dimension
SO-8
SYMBOLS
θ
A
A1
A2
B
C
D
E
e
H
L
y
θ
MILLIMETERS
MIN
MAX
1.35
1.75
0.10
0.25
INCHES
MIN
MAX
0.053
0.069
0.004
0.010
—
0.33
0.19
4.80
3.80
—
0.51
0.25
5.00
4.00
—
0.013
0.007
0.189
0.150
—
0.020
0.010
0.1970
0.157
—
5.80
0.40
—
6.20
1.27
0.10
—
0.228
0.016
—
0.244
0.050
0.004
—
°
0
°
8
°
0
°
8
11
www.analogmicro.com
E-Mail: [email protected]
Life Support Policy:
These products of Analog Microelectronics, Inc. are not authorized for use as critical components in lifesupport 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-DS8806/8809-D
Corporate Headquarters
Asia Pacific Headquarters
Analog Microelectronics, Inc.
AME, Inc.
3100 De La Cruz Blvd. Suite 201
Santa Clara, CA. 95054-2046
2F, 187 Kang-Chien Road, Nei-Hu District
Taipei 114, Taiwan, R.O.C.
Tel : (408) 988-2388
Fax: (408) 988-2489
Tel : 886 2 2627-8687
Fax : 886 2 2659-2989