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SC4216

Very Low Input /Very Low Dropout

3 Amp Regulator With Enable

POWER MANAGEMENT

POWER MANAGEMENT

Revision: March 29, 2006

The SC4216 is a high performance positive voltage

regulator designed for use in applications requiring very

low Input voltage and very low dropout voltage at up to

3 amperes. It operates with a Vin as low as 1.45V, with

output voltage programmable as low as 0.5V. The SC4216

features ultra low dropout, ideal for applications where Vout

is very close to Vin. Additionally, the SC4216 has an en-

able pin to further reduce power dissipation while shut

down. The SC4216 provides excellent regulation over varia-

tions in line, load and temperature.

The SC4216 is available in an SOIC-8EDP (Exposed Die

Pad) package. The output voltage can be set via an

external divider or to fixed settings of 0.5V and 1.2V

depending on how the FB pin is configured.

Input voltage as low as 1.45V

500mV dropout @ 3A

Adjustable output from 0.5V

Over current and over temperature protection

Enable pin

10µA quiescent current in shutdown

Full industrial temperature range

Available in SOIC-8EDP Lead-free package. This

product is fully WEEE and RoHS compliant

Telecom/Networking cards

Motherboards/Peripheral cards

Industrial applications

Wireless infrastructure

Set top boxes

Medical equipment

Notebook computers

Battery powered systems

Volts

R2

R2)

(R1

0.5

VO

+

=

Description

Features

Applications

Typical Application Circuits

Volts

0.5

VO

=

R1

VO

VIN

C1

R2

C2

U1

SC4216

4

3

2

8

1

5

6

7

NC

VIN

EN

GND

NC

NC

VO

FB

ENABLE

C2

VIN

C1

U1

SC4216

4

3

2

8

1

5

6

7

NC

VIN

EN

GND

NC

NC

VO

FB

ENABLE

VO

Volts

2

.

1

VO

=

VIN

C1

ENABLE

SC4216

1

2

3

5

4

8

7

6

NC

EN

VIN

NC

NC

GND

FB

VO

VO

C2