SC1452

© 2000 SEMTECH CORP.

652 MITCHELL ROAD NEWBURY PARK CA 91320

PRELIMINARY - August 7, 2000

5

DUAL 150mA LDO REGULATOR WITH

PROGRAMMABLE RESET

PIN DESCRIPTIONS

Pin # Pin Name

Pin Function

1

OUTA

Regulator A output.

2

OUTB

Regulator B output.

3

GND

Ground pin.

4

RSTA

Power on reset for regulator A. Active low when OUTA is below the reset threshold.

5

RSTB

Power on reset for regulator B. Active low when OUTB is below the reset threshold.

6

DLYB

Programmable delay for RESETB. Delay time can be set by connecting a capacitor, C

tween this pin and ground. Ground this pin if using the default delay time.

7

ENB

Active high enable pin for output B. CMOS compatible input. Connect to IN if not being used.

8

BYP

Bypass pin for bandgap reference. Connect a 10nF capacitor, C

ground for low noise operation.

9

ENA

Active high enable pin for output A. CMOS compatible input. Connect to IN if not being used.

10

IN

Input pin for both regulators.

MSOP-10

(Top View)

PIN CONFIGURATION

VOLTAGE OPTIONS

Replace X in the part number (SC1452XIMS) by the letter shown

below for the corresponding voltage option:

XV

V

A1.8

1.8

B2.5

2.5

C2.8

2.8

D3.0

3.0

E3.3

3.3

F3.0

2.5

G3.0

1.8

H3.0

2.8

J3.3

2.5

K3.3

2.8

MARKING INFORMATION

# = Voltage options (Example: 452F)

yyww = Datecode (Example: 0008)

XXXX = Lot Number (Example: E01102)