SC1454-28IMSTR Ver la hoja de datos (PDF) - Semtech Corporation

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SC1454-28IMSTR

Dual 150mA Ultra Low Dropout, Low Noise Regulator

Semtech Corporation 

SC1454

POWER MANAGEMENT

Pin Configuration

(Top View)

Voltage Options

Replace X in the part number (SC1454XIMS) by the

letter shown below for the corresponding voltage option:

X

A

B

C

MSOP-8

D

Ordering Information

E

Part Numbers

Package

F

SC1454XIMSTR(1)(2)

MSOP-8

G

Notes:

H

(1) Where X denotes voltage options - see Voltage

Options table.

J

(2) Only available in tape and reel packaging. A reel

K

contains 2500 devices.

VOUTA (V)

1.8

2.5

2.8

3.0

3.3

3.0

3.0

3.0

3.3

3.3

VOUTB (V)

1.8

2.5

2.8

3.0

3.3

2.5

1.8

2.8

2.5

2.8

Pin Descriptions

Pin #

1

2

3

4

Pin Name

OUTA

OUTB

GND

SETA

5

ENB

6

BYP

7

ENA

8

IN

Pin Function

Regulator A output.

Regulator B output.

Ground pin.

Connecting this pin to ground results in the internally preset value for VOUT.

Connecting to an external resistor divider changes VOUTA to:

VOUTA

= 1.250 • 1 +



R1 

R2 

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

being used.

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

this pin and ground for low noise operation.

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

being used.

Input pin for both regulators.

ã 2000 Semtech Corp.

4

www.semtech.com

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