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  • The SG3525A series of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip + 5.1 V reference is trimmed to ±1 % and the input common-mode range of the error amplifier includes the reference voltage eliminating external resistors. A sync input to the oscillator allows multiple units to be slaved or a single unit to be synchronized to an external system clock. A single resistor between the CT and the discharge terminals provide a wide range of dead time ad- justment.These devices also feature built-in soft-start circuitry with only an external timing capacitor required. A shutdown terminal controls both the soft-start circuity and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown,as well as soft-start recycle with longer shutdown commands. These functions are also controlled by an undervoltage lockout which keeps the outputs off and the soft-start capacitor discharged for sub-normal input voltages. This lockout circuitry includes approximately 500 mV of hysteresis for jitter-free operation. Another feature of these PWM circuits is a latch following the comparator. Once a PWM pulses has been terminated for any reason,the outputs will remain off for the duration of the period. The latch is reset with each clock pulse. The output stages are totem-pole designs capable of sourcing or sinking in excess of 200 mA. The SG3525A output stage features NOR logic, giving a LOW output for an OFF state.

    Key Features

    • DUAL SOURCE/SINK OUTPUT DRIVERS
    • LATCHING PWM TO PREVENT MULTIPLE PULSES
    • PULSE-BY-PULSE SHUTDOWN
    • INTERNAL SOFT-START
    • 8 TO 35 V OPERATION
    • 100 Hz TO 500 KHz OSCILLATOR RANGE
    • 5.1 V REFERENCE TRIMMED TO ± 1 %
    • ADJUSTABLE DEADTIME CONTROL
    • INPUT UNDERVOLTAGE LOCKOUT WITH HYSTERESIS
    • SEPARATE OSCILLATOR SYNC TERMINAL

Circuit Diagram

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SG2525AN PDIP 16 Tube
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0.6852 1000 EAR99 - Check Availability

Distributor availability ofSG2525AN

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DIGIKEY WORLDWIDE 1357 1 Order Now
RS COMPONENTS EUROPE 265 10 Order Now
ARROW EUROPE 458 0 Order Now
MOUSER WORLDWIDE 2836 1 Order Now
Farnell Element14 EUROPE 407 1 Order Now

Distributor reported inventory date: 2019-12-02

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1357

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265

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458

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2836

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1

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407

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1

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Distributor reported inventory date: 2019-12-02

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SG2525AP SO-16 Tube
Active
0.6852 1000 EAR99 CHINA Check Availability

Distributor availability ofSG2525AP

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Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 703 1 Order Now
RS COMPONENTS EUROPE 2010 2 Order Now
MOUSER WORLDWIDE 1576 1 Order Now
Farnell Element14 EUROPE 611 1 Order Now

Distributor reported inventory date: 2019-12-02

Distributor Name

DIGIKEY

Stock

703

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1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2010

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2

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EUROPE Order Now

MOUSER

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1576

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1

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Farnell Element14

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611

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1

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Distributor reported inventory date: 2019-12-02

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SG2525AP013TR SO-16 Tape And Reel
Active
0.6852 1000 EAR99 CHINA Check Availability

Distributor availability ofSG2525AP013TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3670 1 Order Now
FUTURE WORLDWIDE 110 1 Order Now
Newark Element14 AMERICA 274 0 Order Now
ARROW AMERICA 7500 2500 Order Now
MOUSER WORLDWIDE 3167 1 Order Now
Farnell Element14 EUROPE 735 1 Order Now

Distributor reported inventory date: 2019-12-02

Distributor Name

DIGIKEY

Stock

3670

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

110

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

274

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

7500

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

3167

Min.Order

1

Region

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Farnell Element14

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735

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1

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Distributor reported inventory date: 2019-12-02

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SG2525AN

Package

PDIP 16

Packing Type

Tube

Unit Price (US$)

0.6852*

Distributor availability ofSG2525AN

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1357 1 Order Now
RS COMPONENTS EUROPE 265 10 Order Now
ARROW EUROPE 458 0 Order Now
MOUSER WORLDWIDE 2836 1 Order Now
Farnell Element14 EUROPE 407 1 Order Now

Distributor reported inventory date: 2019-12-02

Distributor Name

DIGIKEY

Stock

1357

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

265

Min.Order

10

Region

EUROPE Order Now

ARROW

Stock

458

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

2836

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

407

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-02

Marketing Status

Active

Unit Price (US$)

0.6852

Quantity

1000

ECCN (US)

EAR99

Country of Origin

-

SG2525AP

Package

SO-16

Packing Type

Tube

Unit Price (US$)

0.6852*

Distributor availability ofSG2525AP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 703 1 Order Now
RS COMPONENTS EUROPE 2010 2 Order Now
MOUSER WORLDWIDE 1576 1 Order Now
Farnell Element14 EUROPE 611 1 Order Now

Distributor reported inventory date: 2019-12-02

Distributor Name

DIGIKEY

Stock

703

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2010

Min.Order

2

Region

EUROPE Order Now

MOUSER

Stock

1576

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

611

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-02

Marketing Status

Active

Unit Price (US$)

0.6852

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

SG2525AP013TR

Package

SO-16

Packing Type

Tape And Reel

Unit Price (US$)

0.6852*

Distributor availability ofSG2525AP013TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3670 1 Order Now
FUTURE WORLDWIDE 110 1 Order Now
Newark Element14 AMERICA 274 0 Order Now
ARROW AMERICA 7500 2500 Order Now
MOUSER WORLDWIDE 3167 1 Order Now
Farnell Element14 EUROPE 735 1 Order Now

Distributor reported inventory date: 2019-12-02

Distributor Name

DIGIKEY

Stock

3670

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

110

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

274

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

7500

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

3167

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

735

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-02

Marketing Status

Active

Unit Price (US$)

0.6852

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
SG2525AN
Active
PDIP 16 Industrial Ecopack2
SG2525AP
Active
SO-16 Industrial Ecopack2
SG2525AP013TR
Active
SO-16 Industrial Ecopack2

SG2525AN

Package:

PDIP 16

Material Declaration**:

Marketing Status

Active

Package

PDIP 16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

SG2525AP

Package:

SO-16

Material Declaration**:

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

SG2525AP013TR

Package:

SO-16

Material Declaration**:

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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