
1
Features
I
Two Regulated Outputs
Primary Output 5V
± 5%; 500mA
Secondary Standby 5V
±5%; 10mA
Low Dropout Voltage
(0.6V at 0.5A)
ON/OFF Control
Option
Low Quiescent Drain
(<3mA)
RESET Option
Protection Features
Reverse Battery
60V Load Dump
-50V Reverse Transient
Short Circuit
Thermal Shutdown
Overvoltage Shutdown
I
I
I
I
I
Package Option
5 Lead TO-220
Tab (Gnd)
1
C
5V, 5V Low Dropout Dual Regulator
with
RESET
Description
/ENABLE
CS8135
V
IN
V
OUT2
Gnd
V
OUT1
RESET/
ENABLE
Output
Current
Limit
+
-
Output
Current
Limit
Over Voltage
Shutdown
+
-
+
-
Primary Output
Standby Output
+
-
Thermal
Shutdown
Bandgap
Reference
Block Diagram
Absolute Maximum Ratings
Input Voltage
Operating Range.....................................................................-0.5V to 26V
Load Dump............................................................................................60V
Internal Power Dissipation..................................................Internally Limited
Junction Temperature Range (T
J
)............................................-40C to +150C
Storage Temperature Range ....................................................-65C to +150C
Lead Temperature Soldering
Wave Solder (through hole styles only)..........10 sec. max, 260C peak
Electrostatic Discharge (Human Body Model) ..........................................2kV
The CS8135 is a low dropout, high cur-
rent, dual 5V linear regulator. The sec-
ondary 5V/10mA output is often used
for powering systems with standby
memory. Quiescent current drain is
less than 3mA when supplying 10mA
loads from the standby regulator.
In automotive applications, the CS8135
and all regulated circuits are protected
from reverse battery installations, as
well as two-battery jumps. During line
transients, such as a 60V load dump,
the 500mA output will automatically
shut down the primary output to pro-
tect both internal circuits and the load.
The standby regulator will continue to
power any standby load.
The CS8135 is packaged in a 5 lead
TO-220.
NOTE: The CS8135 is compatible with
the LM2935.
1 V
IN
2 V
OUT1
3 Gnd
RESET
4
/
ENABLE
5 V
OUT2
A
Company
¨
Rev. 10/21/97
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