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AME8806AEHA
Datasheet
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Analog Microelectronics AME8842OEHA, AME8842MEHA, AME8842LEHA, AME8842KEHA, AME8842JEHA Datasheet

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Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
nn
n General Description
nn
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.
These rugged devices have both Thermal Shutdown, and Current Fold-back to prevent device failure under the "Worst" of operating conditions.
In applications requiring a low noise, regulated supply, place a 1000 pF capacitor between Bypass and ground.
The AME8806/8809 is stable with an output capacitance of 2.2µF or greater.
600mA CMOS LDO
nn
n Features
nn
nn
n Applications
nn
nn
n Functional Block Diagram
nn
IN
Overcurrent
Shutdown
Thermal
Shutdown
EN
BYP
AMP
V
=1.215V
ref
R1
R2
OUT
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
AME8806 AME8809
C2
C1
5V
1
µ
F
1
µ
F
GND
OUT
ENBYP
OUT
C3
2.2
µ
F
GND
1
Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
nn
n Pin Configuration
nn
SO-8 Top View SO-8 Top View
IN GND GND
EN
AME8806
OUT GND GND
BYP
EN
IN
OUT
BP
600mA CMOS LDO
GND GND GND GND
AME8809
PG
IN
OUT
EN
GND GND GND GND
AME8842
2
Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
nn
n Ordering Information
nn
Part Number Mark i ng Out put Package Oper at i ng Tem p.
AME8806AEHA
AME8806BEHA
AME8806CEHA
AME8806DEHA
AME8806EEHA
AME8806FEHA
AME8806GEHA
AME8806HEHA
AME8806IEHA
AME8806JEHA
AME8806KEHA
AME8806LEHA
AME8806MEHA
AME8806NEHA
AME8806OEHA
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
3.3V SO-8
3.0V SO-8
2.8V SO-8
2.5V SO-8
3.8V SO-8
3.6V SO-8
3.5V SO-8
2.7V SO-8
3.4V SO-8
2.85V SO-8
3.7V SO-8
1.5V SO-8
1.8V SO-8
2.9V SO-8
3.1V SO-8
O
-40
C to +85OC
O
C to +85OC
-40
O
C to +85OC
-40
O
C to +85OC
-40
O
C to +85OC
-40
O
C to +85OC
-40
O
C to +85OC
-40
O
C to +85OC
-40
O
C to +85OC
-40
O
C to +85OC
-40
O
C to +85OC
-40
O
C to +85OC
-40
O
C to +85OC
-40
O
C to +85OC
-40
O
C to +85OC
-40
600mA CMOS LDO
3
Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
nn
n Ordering Information
nn
Part Number Marking Output Package Operat ing Temp.
AME8809AEHA
AME8809BEHA
AME8809CEHA
AME8809DEHA
AME8809EEHA
AME8809FE HA
AME8809GE HA
AME8809HEHA
AME8809IEHA
AME8809JEHA
AME8809KEHA
AME8809LEHA
AME8809MEHA
AME8809NEHA
AME8809OE HA
Pleas e c ons ult AME s ales office or authoriz ed Rep./ Dis t ributor
4
for other output voltage and pack age type availability .
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
3.3V SO-8
3.0V SO-8
2.8V SO-8
2.5V SO-8
3.8V SO-8
3.6V SO-8
3.5V SO-8
2.7V SO-8
3.4V SO-8
2.85V SO-8
3.7V SO-8
1.5V SO-8
1.8V SO-8
2.9V SO-8
3.1V SO-8
O
-40
C to +85OC
O
-40
C to +85OC
O
C to +85OC
-40
O
C to +85OC
-40
O
-40
C to +85OC
O
C to +85OC
-40
O
C to +85OC
-40
O
-40
C to +85OC
O
C to +85OC
-40
O
C to +85OC
-40
O
-40
C to +85OC
O
C to +85OC
-40
O
C to +85OC
-40
O
C to +85OC
-40
O
-40
C to +85OC
600mA CMOS LDO
Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
nn
n Ordering Information
nn
600mA CMOS LDO
Part Numb er Marking Output Package Operating T emp.
8842
AME8842AEHA
AME8842BEHA
AME8842CEHA
AME8842DEHA
AME8842EEHA
AME8842FEHA
AME8842GEHA
AME8842HEHA
AME8842IEHA
AME8842JEHA
AME8842KEHA
AM E 8842LE HA
AME8842MEHA
AME8842NEHA
AME8842OEHA
Pleas e cons ult AM E sales office or authorized Rep./Dis tributor for other output voltage and pack age type availability .
AE HA
yyww
8842
BE HA
yyww
8842
CEHA
yyww
8842
DEHA
yyww
8842
EE HA
yyww
8842
FE HA
yyww
8842
GE HA
yyww
8842
HEHA
yyww
8842
IE HA
yyww
8842
JEHA
yyww
8842
KE HA
yyww
8842
LEHA
yyww
8842
M EHA
yyww
8842
NEHA
yyww
8842
OE HA
yyww
3.3V SO -8
3.0V SO -8
2.8V SO -8
2.5V SO -8
3.8V SO -8
3.6V SO -8
3.5V SO -8
2.7V SO -8
3.4V SO -8
2.85V SO -8
3.7V SO -8
1.5V SO -8
1.8V SO -8
2.9V SO -8
3.1V SO -8
O
-40
C to +85OC
O
-40
C to +85OC
O
-40
C to +85OC
-40OC to +85OC
O
-40
C to +85OC
O
-40
C to +85OC
O
-40
C to +85OC
O
-40
C to +85OC
O
-40
C to +85OC
O
-40
C to +85OC
-40OC to +85OC
O
-40
C to +85OC
O
-40
C to +85OC
O
-40
C to +85OC
O
-40
C to +85OC
5
Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
nn
n Absolute Maximum Ratings
nn
Parame ter Max imum Unit
Input Volt age 8 V
Output Current
Input, Out put V ol t age GND - 0.3 to V
ESD Classification B
nn
n Recommended Operating Conditions
nn
Parame ter Rating Unit
Am bient Temperat ure Range -40 to + 85
Junct ion Temperature -40 to + 125
PD / (VIN - VO)
+ 0.3 V
IN
600mA CMOS LDO
A
o
C
o
C
nn
n Thermal Information
nn
Parameter Maximum Unit
Thermal Resist ance ( Internal Power Diss ipat ion (P
o
(∆T = 100 Max i m um Junc t ion Temperature 150
Max im um Lead Temperature ( 10 Sec ) 300
Caution: Stress above the listed absolute rating may cause permanent damage to the device
C)
) 123.7
θ
ja
)
D
810 mW
o
C / W
o
C
o
C
6
Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
nn
n Electrical Specifications
nn
TA = 25oC unless otherwis e noted
Parameter Symbol Min Typ Max Units
Input Vol tage V Output Voltage Accuracy V
Dropout Voltage V
Output Current I Curr ent L imit I Short Ci rcuit Current I Quies cent Current I Ground Pin Current I
Line Regulation REG
Load Regulation REG
IN
O
DROPOUT
O
LIM
SC
Q
GND
LINE
LOAD
I
O
V
O=VONOM
V
IN=VO
Over Temerature Shutdown OTS 150 Over Temerature Hys terisis OTH 30 V
Temperature Coefficient TC 30
O
I
O
Power Supply Rej ect ion
PSRR f=10kHz 55 dB
=2.2µF ceramic
C
O
C
BYP
Test Condition
I
=1mA
O
=600mA
-2.0%
V
>1.2V
O
>1.2V
V
O
<0.8V
V
O
=0mA
I
O
I
=1mA to 600mA
O
IO=5mA
+1 to VO+2
=1mA to 600mA
I
O
=100mA
=0.01µF
1.5V<V
2.0V <V
2.8V <V
V
V
<=2.0V 1400
O(NOM)
<= 2.8V 800
O(NOM)
<3.8V 600
O(NOM)
< 2.0V 0.15 %
O
>= 2.0V 0.02 0.1 %
O
f=1kHz 75
f=100kHz 30
600mA CMOS LDO
Note 1 8 V
-1.5 1.5 %
See
chart
600 mA 600 800 mA
300 600 mA
30 50 30 50
0.2 1 %
mV
µ µ
ppm/
A A
o
C
o
C
o
C
Output Voltage Noise eN
V
EN Input Threshold
V
I
EN Input Bias Current
Shutdown S upply Curre nt I Note1:V
IN(min)=VOUT+VDROPOUT
EH
I
EL
SD
EH
EL
f=10Hz t o 10 0kHz
I
=10mA,C
O
=0.01µF
BYP
V
EN=VIN
=0V, VIN=2.7V to 8V
V
EN
=5V, VO=0V, VEN<V
V
IN
V
=2.7V to 8V
IN
=2.7V to 8V
V
IN
, VIN=2.7V to 8V
Co=2.2µF30
Vrms
Co=100µF20
µ
2.0 Vin V
00.4V
0.1
0.5
EL
0.5 1
µ µ µ
A A A
7
Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
nn
n Detailed Description
nn
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.
600mA CMOS LDO
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 re- jection, 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.
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 External Capacitors
nn
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
Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
Ground Current vs. Input Voltage
45 40 35
A)
µ
µµ
µ
30 25 20 15 10
Ground Current (
5 0
012345678
Input Voltage (V)
Drop Out Voltage vs. Output Voltage
0.3
0.25
0.2
0.15
0.1
Drop Out Voltage (V)
0.05
0
22.533.544.5 55.5
Output Voltage (V)
I
LOAD
85OC
25OC
=600mA
600mA CMOS LDO
Load Step ( 1mA-600mA)
Output
CL=2.2µF
CIN=2.2
I
(200mA/DIV) Vo(10mV/DIV)
L
I
Load
TIME ( 20mS/DIV)
Power Supply Rejection Ratio
0
-10
-20
-30
-40
-50
PSRR (dB)
-60
-70
-80
CL=2.2µF Tantalum
C
=0
BYP
100mA
100µA
100µA
1.0E+01 1.0E+03 1.0E+05 1.0E+07
Frequency (Hz)
µ
F
100mA
10mA
1mA
0
Safe Operating Area
600
100
Output Current (mA)
10
0.1
Input-Output Voltage Differential (V)
1.0
8.0
Power Supply Rejection Ratio
-20
-30
-40
-50
-60
PSRR (dB)
-70
-80
1.0E+01 1.0E+03 1.0E+05 1.0E+07
CL=2.2µF Tantalum
C
=1000pF
BYP
100mA
100µA
100µA
Frequency (Hz)
100mA
1mA
10mA
9
Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
Noise Measurement
Vo (1mV/ DIV)
TIME (20mS/DIV)
Current Limit Response
(1V/DIV)
OUT
C
LOAD
C
IN
R
LOAD
V
OUTNOM
(200mA/DIV) V
OUT
I
TIME (2mS/DIV)
CL = 2.2µF
NO FILTER
=2.2µF
=1.0µF
=3.3
=3.3V
600mA CMOS LDO
Overtemperature Shutdown
(200mA/DIV)
OUT
R
LOAD
=6.6
Ω
(1V/DIV) I
OUT
V
TIME (0.5Sec/DIV)
Short Circuit Response
C
=2.2µF
LOAD
=1µF
C
IN
<100m
R
LOAD
(200mV/DIV)
OUT
Ω
(1V/DIV) I
OUT
V
TIME (2mS/DIV)
Ω
0
0
Chip Enable Transient Response
Output (1V/DIV) Enable (2V/DIV)
TIME ( 1mS/DIV)
10
CL=2µF R
=10
L
Line Transient Response
Ω
0
0
(1V/DIV)
IN
(10mV/DIV) V
OUT
V
TIME (200mS/DIV)
C
LOAD
I
LOAD
V
OUTDC
V
INDC
=2.2µF =1mA
=3.3V
=4.5V
Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
nn
n Package Dimension
nn
SO-8
600mA CMOS LDO
SY MBO L S
A 1.35 1.75 0.053 0.069
A
1
A2
B 0.33 0.51 0.013 0.020
θ
C 0.19 0.25 0.007 0.010 D 4.80 5.00 0.189 0.1970 E 3.80 4.00 0.150 0.157
e H 5.80 6.20 0.228 0.244 L 0.40 1.27 0.016 0.050
y
θθθθ
MILLIMETERS INCHES
MIN MAX MIN MAX
0.10 0.25 0.004 0.010
————
————
—
°
0
0.10 0.004
°
8
°
0
°
8
11
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-DS8806/8809-D
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 Tel : 886 2 2627-8687 Fax: (408) 988-2489 Fax: 886 2 2659-2989
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