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CS8221

Micropower 5V, 100mA Low Dropout Linear Regulator

Cherry semiconductor 

CS8221

Micropower 5V, 100mA

Low Dropout Linear Regulator

Description

Features

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.

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

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

VIN

Current Source

(Circuit Bias)

Block Diagram

Over

Voltage

Shutdown

Current Limit

Sense

VOUT

D2PAK

Sense*

8L SO Narrow

(Internally Fused Leads)

VIN 1

VOUT

NC

Sense

Gnd

Gnd

Gnd

Gnd

Thermal

Shutdown

+ - Error

Amplifier

3L D2PAK

Tab (Gnd)

Bandgap

Reference

* 8 Lead SO Narrow

Rev. 12/28/98

1. VIN

1

2. Gnd

3. VOUT

Gnd

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

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