CS8271 Datasheet, PDF (1/6 Pages) Cherry Semiconductor Corporation – Adjustable Micropower Low Dropout Linear Regulator with ENABLE

CS8271
Adjustable Micropower Low Dropout
Linear Regulator with ENABLE
Description
Features
The CS8271 is an adjustable microp-
ower voltage regulator with very
low quiescent current (60µA typical
at 100µA load). The output supplies
100mA of load current with a maxi-
mum dropout voltage of only
600mV. Control logic includes
ENABLE. The combination of low
quiescent current, outstanding reg-
ulator performance and control
logic makes the CS8271 ideal for
any battery operated equipment.
The logic level compatible ENABLE
pin allows the user to put the regu-
lator into a shutdown mode where it
draws only 50µA of quiescent cur-
rent.
The regulator is protected against
reverse battery, short circuit, over
voltage, and over temperature con-
ditions. The device can withstand
60V load dump transients making it
suitable for use in automotive envi-
ronments.
The CS8271 is pin compatible with
the National Semiconductor
LM2931.
s Low Quiescent Current
s Adjustable Output:
5V to 12V
s ENABLE for Sleep Mode
Control
s 100mA Output Current
Capability
s Fault Protection
+60V Load Dump
-15V Reverse Voltage
Short Circuit
Thermal Shutdown
s Low Reverse Current
(Output to Input)
Block Diagram
V_IN
ENABLE
Input
Rev. 3/26/97
Current Source
(Circuit Bias)
Over
Voltage
Shutdown
Current Limit
Sense
Thermal
Shutdown
Bandgap
Reference
+ - _Error
Amplifier
V_OUT
Adj
Gnd
Package Options
8L SOIC & PDIP
V_OUT ¹
Gnd
NC
Adj
V_IN
NC
NC
ENABLE
Other Packages: Consult factory for
16L SO Batwing, 5L TO-220 and D²PAK.
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: [phone] Fax: [phone]
Email: [e-mail]
Web Site: www.cherry-semi.com
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