Philips Semiconductors

Product data

SA57254-XX

CMOS switching regulator (PWM controlled)

2003 Nov 11

3

ORDERING INFORMATION

TYPE NUMBER

PACKAGE

TEMPERATURE

TYPE NUMBER

NAME

DESCRIPTION

VERSION

RANGE

SA57254-XXGW

SOT23-5,

SOT25, SO5

Plastic small outline package; 5 leads; body width 1.6 mm

SOP003

–40 to +85

°C

NOTE:

The device has seven voltage output options, indicated by the XX

on the Type Number.

XX

VOLTAGE (Typical)

20

2.0 V

25

2.5 V

28

2.8 V

30

3.0 V

33

3.3 V

36

3.6 V

50

5.0 V

Part number marking

Each device is marked with a four letter code. The first three letters

designate the product. The fourth letter, represented by ‘x’, is a date

tracking code.

Part number

Marking

SA57254-20GW

A E K x

SA57254-25GW

A E L x

SA57254-28GW

A E M x

SA57254-30GW

A E N x

SA57254-33GW

A E P x

SA57254-36GW

A E R x

SA57254-50GW

A E S x

PIN CONFIGURATION

SL01502

1

2

34

5SW

GND

N/C

FB

Figure 2. Pin configuration.

PIN DESCRIPTION

PIN

SYMBOL

DESCRIPTION

1

FB

Feedback from the output voltage to the PWM

control.

2

Voltage input to regulator.

3

N/C

No connection.

4

GND

Ground.

5

SW

Switching output to inductor.

MAXIMUM RATINGS

SYMBOL

PARAMETER

MIN.

MAX.

UNIT

Power supply voltage

–0.3

11

V

FB pin voltage

–0.3

11

V

SW pin voltage

–0.3

11

V

SW pin current

–

300

mA

Operating temperature

–40

+85

°C

Storage temperature

–40

+125

°C

Power dissipation

–

150

mW