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CS8101
(Rev.:2008)

Micropower 5.0 V, 100 mA Low Dropout Linear Regulator with RESET and ENABLE

ON Semiconductor 

CS8101

Micropower 5.0 V, 100 mA

Low Dropout Linear

Regulator with RESET

and ENABLE

The CS8101 is a precision 5.0 V micropower voltage regulator with

very low quiescent current (70 mA typ at 100 mA load). The 5.0 V

output is accurate within ±2.0% and supplies 100 mA of load current

with a typical dropout voltage of only 400 mV. Microprocessor control

logic includes an ENABLE input and an active RESET. This

combination of low quiescent current, outstanding regulator

performance and control logic makes the CS8101 ideal for any battery

operated, microprocessor controlled equipment.

The active RESET circuit includes hysteresis, and operates

correctly at an output voltage as low as 1.0 V. The RESET function is

activated during the power up sequence or during normal operation if

the output voltage drops outside the regulation limits by more than

200 mV typ. The logic level compatible ENABLE input allows the user

to put the regulator into a shutdown mode where it draws only 20 mA

typical of quiescent current.

The regulator is protected against reverse battery, short circuit, over

voltage, and thermal overload conditions. The device can withstand

load dump transients making it suitable for use in automotive

environments.

The CS8101 is functionally equivalent to the National

Semiconductor LP2951 series low current regulators.

Features

• 5.0 V ±2.0% Output

• Low 70 mA Quiescent Current

• Active RESET

• ENABLE Input for ON/OFF and Active/Sleep Mode Control

• 100 mA Output Current Capability

• Fault Protection

− +60 V Peak Transient Voltage

− −15 V Reverse Voltage Short Circuit Thermal Overload

• Low Reverse Current (Output to Input)

• Internally Fused Leads Available in SO−20 WB Package

• These are Pb−Free Devices

http://onsemi.com

20

1

8

1

SO−20 WB

DWF SUFFIX

CASE 751D

SOIC−8

D SUFFIX

CASE 751

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 9 of this data sheet.

DEVICE MARKING INFORMATION

See general marking information in the device marking

section on page 9 of this data sheet.

© Semiconductor Components Industries, LLC, 2008

1

September, 2008 − Rev. 19

Publication Order Number:

CS8101/D

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