SG2524, SG3524

REGULATING PULSEWIDTH MODULATORS

SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003

1

POST OFFICE BOX 655303

Power-Control Circuitry

Push-Pull Applications

SG2524 and SG3524

description/ordering information

The SG2524 and SG3524 incorporate all the

functions required in the construction of a

regulating power supply, inverter, or switching

regulator on a single chip. They also can be used

as the control element for high-power-output

applications. The SG2524 and SG3524 were

designed for switching regulators of either polarity, transformer-coupled dc-to-dc converters, transformerless

voltage doublers, and polarity-converter applications employing fixed-frequency, pulse-width modulation

(PWM) techniques. The complementary output allows either single-ended or push-pull application. Each device

includes an on-chip regulator, error amplifier, programmable oscillator, pulse-steering flip-flop, two uncommitted

pass transistors, a high-gain comparator, and current-limiting and shutdown circuitry.

ORDERING INFORMATION

T

INPUT

REGULATION

PACKAGE†

ORDERABLE

TOP-SIDE

TA

REGULATION

MAX (mV)

PACKAGE†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

PDIP (N)

Tube of 25

SG3524N

SG3524N

0

°Cto70°C

30

SOIC (D)

Tube of 40

SG3524D

SG3524

0

°C to 70°C

30

SOIC (D)

Reel of 2500

SG3524DR

SG3524

SOP (NS)

Reel of 2000

SG3524NSR

SG3524

PDIP (N)

Tube of 25

SG2524N

SG2524N

–25

°C to 85°C

20

SOIC (D)

Tube of 40

SG2524D

SG2524

SOIC (D)

Reel of 2500

SG2524DR

SG2524

† Package drawings, standard packing quantities, thermal data, symboliztion, and PCB design guidelines are

available at www.ti.com/sc/package.

Copyright

 2003, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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16

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14

13

12

11

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9

IN–

IN+

OSC OUT

CURR LIM+

CURR LIM–

RT

CT

GND

REF OUT

EMIT 2

COL 2

COL 1

EMIT 1

SHUTDOWN

COMP

SG2524 ...D OR N PACKAGE

SG3524 . . . D, N, OR NS PACKAGE

(TOP VIEW)