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Features

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Two Regulated Outputs

Primary Output

8V ±5%; 750mA

Secondary Output

5V ±2%; 100mA

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Low Dropout Voltage

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ON/OFF Control

Option

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Standby Quiescent Drain

(<2mA)

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Protection Features

Reverse Battery

60V Peak Transient

Voltage

-50V Reverse Transient

Short Circuit

Thermal Shutdown

Package Options

5 Lead TO-220

Tab (Gnd)

1

8V/5V Low Dropout Dual Regulator

with ENABLE

CS8164

Description

Block Diagram

Absolute Maximum Ratings

3 Gnd

4 ENABLE

December, 2001 - Rev. 4

ON Semiconductor

2000 South County Trail, East Greenwich, RI 02818

Tel: (401)885–3600 Fax: (401)885–5786

N. American Technical Support: 800-282-9855

Web Site: www.cherry–semi.com

The CS8164 is a low dropout, dual

8V/5V linear regulator. The secondary

5V/100mA output is used for powering

systems with standby memory.

Quiescent current drain is less than

2mA when supplying 10mA loads from

the standby regulator.

In automotive applications, the CS8164

and all regulated circuits are protected

from reverse battery installations, as

well as high voltage transients. During

line transients, such as a 60V load

dump, the 750mA output will automat-

ically shutdown to protect both internal

circuits and the load, while the sec-

ondary regulator continues to power

any standby load.

The on board ENABLE function con-

trols the regulator's primary output.

When ENABLE is in the low state, the

regulator is placed in STANDBY mode

where it draws 2mA (typ) quiescent

current.

The CS8164 is packaged in a 5-lead

TO-220, with copper tab for connection

to a heat sink, if necessary.

DC Input Voltage.............................................................................-0.5V to 26V

Transient Peak Voltage (46V Load Dump) .................................................60V

Internal Power Dissipation ..................................................Internally Limited

Operating Temperature Range................................................-40°C to +125°C

Junction Temperature Range...................................................-40°C to +150°C

Storage Temperature Range ....................................................-65°C to +150°C

Reverse Polarity Input Voltage, Transient ................................................-50V

Lead Temperature Soldering

Wave Solder (through hole styles only)..........10 sec. max, 260°C peak

Gnd

ENABLE

Output

Current

Limit

+

-

Output

Current

Limit

Over Voltage

Shutdown

Primary Output

Standby Output

+

-

Thermal

Shutdown

Bandgap

Reference

+

-