AME8750 Datasheet, PDF (1/15 Pages) Asahi Kasei Microsystems – Low-Dropout 150mA / 150mA Dual CMOS Regulator

AME, Inc.
AME8750
Low-Dropout
150mA / 150mA Dual CMOS Regulator
n General Description
The AME8750 dual, low dropout, linear regulators op-
erate from Higher V_OUT+V_DROPOUT to 5.5V input and deliver
up to 150mA / 150mA output current each. It has a by-
pass pin option allows users to decouple the bandgap
reference for reducing the output noise. Low dropout
voltage and low quiescent current(70µA typ.)make them
ideal for battery applications.
The AME8750 is available with a wide variety of voltage
options as standard and can be trimmed to 1.5% accu-
racy.
For protection purpose, AME8750 has both thermal
shutdown and current fold-back to prevent device failure
under the “ worst” of operating conditions.
n Functional Block Diagram
EN1
V_{I N}
GND
EN2
ON/OFF
Control
VR1
Each
Circuit
Error
Amp1
Current
Limit
R11
V_{O U T 1}
R12
VR2
Each
Circuit
ON/OFF
Control
Error
Amp2
Voltage
Reference
Current
Limit
R21
V_OUT2
R22
n Features
l Very Low Dropout Voltage
l Guaranteed 150mA / 150mA Each Output
l Accurate to Within 1.5% For Both Outputs
l Typical 70 µA Quiescent Current
l Over-Temperature Shutdown
l Current Limiting
l Short Circuit Current Fold-back
l Noise Reduction Bypass Cap
l Power-Saving Shutdwon Mode
l All AME's Lead Free Product Meet RoHS
Standards
n Applications
l Cellular Phones
l Palm / Notebook
l Battery Power Equipment
l Handheld Instruments
n Typical Applications
Fixed Version
V_IN
V_IN
V _OUT1
EN
AME8750A
V_{O U T 2}
BYP GND
V_OUT1
V _OUT2
1µF
10nF
1µF
1µ F
V_IN
1µF
V_IN
V_OUT1
EN1
AME8750B
EN2
V _OUT2
GND
V _OUT1
V_{O U T 2}
1µF
1µ F
1