1

Features

Error

Amplifier

Thermal

Shutdown

Over

Voltage

Shutdown

Bandgap

Reference

+

-

Current Limit

Sense

Current Source

(Circuit Bias)

Gnd

Sense*

* 8 Lead SO Narrow

s

Low Quiescent Current

(60µA @ 100µA load)

s

5V, ±2% Output

s

100mA Output Current

Capability

s

Fault Protection

+74V Peak Transient

Voltage

-15V Reverse Voltage

Short Circuit

Thermal Shutdown

Low Reverse Current

(Output to Input)

Package Options

Micropower 5V, 100mA

Low Dropout Linear Regulator

CS8221

Description

The CS8221 is a precision 5V,

100mA micropower voltage regula-

tor with very low quiescent current

(60µA typical at 100µA load). The

5V output is accurate within ±2%

and supplies 100mA of load current

with a maximum dropout voltage

of only 600mV.

The regulator is protected against

reverse battery, short circuit, over

voltage, and over temperature con-

ditions. The device can withstand

74V load dump transients making it

suitable for use in automotive envi-

ronments.

Block Diagram

Tab (Gnd)

1

2. Gnd

Absolute Maximum Ratings

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

Transient Peak Voltage (60V Load Dump) . . . . . . . . . . . . . . . . . . . .-15V, 74V

Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Internally Limited

ESD Susceptibility (Human Body Model) . . . . . . . . . . . . . . . . . . . . . . . . . .2kV

Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40¡C to 150¡C

Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-55¡C to 150¡C

Lead Temperature Soldering

Reflow (SMD styles only) . . . . . .60 sec. max above 183¡C, 230¡C peak

1

NC

Sense

Gnd

Gnd

Gnd

Gnd

8L SO Narrow

(Internally Fused Leads)

A

Company

¨

Rev. 12/28/98

Consult factory for TO-92.

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