CS8361
CS8361
5V Dual Micropower Low Dropout
Regulator with ENABLE and RESET
Description
The CS8361 is a precision micro-
power dual voltage regulator with
ENABLE and RESET .
The 5V standby output is accurate
within ±2% while supplying loads
of 100mA and has a typical
dropout voltage of 400mV.
Quiescent current is low, typically
140µA with a 300µA load. The
active RESET output monitors the
5V standby output and holds
the RESET line low during power-
up and regulator dropout condi-
tions. The RESET circuit includes
hysteresis and is guaranteed to
operate correctly with 1V on the
standby output.
The second output tracks the 5V
standby output through an external
adjust lead, and can supply loads
of 250mA with a typical dropout
voltage of 400mV. The logic level
ENABLE lead is used to control
this tracking regulator output.
Both outputs are protected against
overvoltage, short circuit, reverse
battery and overtemperature condi-
tions. The robustness and low qui-
escent current of the CS8361 makes
it not only well suited for automo-
tive microprocessor applications,
but for any battery powered micro-
processor applications.
Features
s
2 Regulated Outputs
Standby Output 5V
±2%; 100mA
Tracking Output 5V;
250mA
s
Low Dropout Voltage
(0.4V at rated current)
s
RESET Option
s
ENABLE Option
s
Low Quiescent Current
s
Protection Features
Independent Thermal
Shutdown
Short Circuit
60V Load Dump
Reverse Battery
Block Diagram
V
IN
Overvoltage
Shutdown
OVSD
Current
Limit
+
–
TSD
V
IN
Current
Limit
Thermal
Shutdown
TSD
–
OVSD
Bandgap
RESET
BG
BG
V
STBY
5V,100mA,2%
Package Options
16 Lead PDIP & SOIC Wide
(internally fused leads)
V
IN
NC
V
TRK
Gnd
Gnd
Adj
1
V
STBY
NC
NC
Gnd
Gnd
NC
NC
RESET
V
TRK
250mA
NC
ENABLE
7L TO-220
Adj
+
7L D
2
PAK
V
STANDBY
ENABLE
–
+
BG
+
Gnd
RESET
–
RESET
TSD
OVSD
1. V
STBY
2. V
IN
3. V
TRK
4. Gnd
5. Adj
6. ENABLE
7. RESET
1
1
Also available in 20 Lead SOIC Wide.
Consult factory for 20 Lead PSOP .
* Consult factory for positive ENABLE option.
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: info@cherry-semi.com
Web Site: www.cherry-semi.com
Rev. 5/4/99
1
A
®
Company
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
