© 2000 SEMTECH CORP.

652 MITCHELL ROAD NEWBURY PARK CA 91320

150mA ULTRA LOW DROPOUT

MICROPOWER LINEAR REGULATOR

SC112

PRELIMINARY - July 25, 2000

4

BLOCK DIAGRAM

PIN CONFIGURATION

PIN DESCRIPTION

Pin #

Pin Name

Description

1

EN

Active high enable pin. Connect to VIN if not being used.

2

GND

Ground pin. Use for heatsinking along with Pin #5.

3

BYP

Noise bypass pin. Connect a 10nF capacitor (required) between this pin and GND.

4

VO

Regulator output, supplying a guaranteed 150mA.

5

GND

Ground pin. Use for heatsinking along with Pin #2.

6

VIN

Power input pin.

Top View

SOT-23-6L

APPLICATION HINTS (Refer to Sheet 1):

(1) C

itors, or for operation from a battery. A value of 1.0µF or greater should

be used. C

(2) C

with an Equivalent Series Resistance (ESR) between 10m

Ω and 1Ω

over temperature. Larger value capacitors will improve the overall tran-

sient response.

(3) C

and ground. A 10nF ceramic capacitor is recommended.

(4) EN may be tied to V

mum EN voltage = V

(5) Connect both ground pins (2 and 5) to ground to maximize heat

conduction.