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UC1525AJ The Unitrode UC1525AJ is a regulating pulse width modulator IC designed for switching power supplies. It operates from 8V to 35V and features a 5.1V reference voltage.
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UC1525AJ

Available from 1 distributors
Mfr Name: Unitrode
Unitrode
The Unitrode UC1525AJ is a regulating pulse width modulator IC designed for switching power supplies. It operates from 8V to 35V and features a 5.1V reference voltage.
✓ Total Stock: 6 pcs
$ Price Range: $13.84

UC1525AJ Available from 1 distributor

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UC1525AJ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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UC1525AJ Description

Short technical summary and product information.

The UC1525AJ from Unitrode is a regulating pulse width modulator integrated circuit designed for various switching power supply applications. It offers a wide operating voltage range of 8V to 35V and includes an on-chip 5.1V reference voltage trimmed to 1% accuracy.

 

Key features include an oscillator frequency range from 100Hz to 500kHz, adjustable dead-time control, internal soft start, and undervoltage lockout with hysteresis. The device supports multiple topologies such as Boost, Flyback, Forward, Full bridge, Half bridge, and Push-pull configurations. It also provides dual source and sink output drivers.

 

Available in CDIP (J) and LCCC (FK) packages, the UC1525AJ is suitable for applications requiring precise pulse width modulation control. Note that this part is not recommended for new designs.

UC1525AJ Quick Information

Product Type: Regulating Pulse Width Modulator
Canonical Name: UC1525AJ Regulating Pulse Width Modulator
Subcategory: Pulse Width Modulator

UC1525AJ Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

UC1525AJ Estimated Pricing

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1+ $13.84 $13.84

Estimated market price range - modelled values for guidance only, not live distributor offers.

UC1525AJ Features

  • Wide 8V to 35V operating voltage range.
  • Precise 5.1V reference voltage.
  • Adjustable oscillator frequency up to 500kHz.
  • Supports multiple switching topologies.
  • Internal soft start and undervoltage lockout.

UC1525AJ Applications

  • Ideal for AC/DC switching regulators.
  • Suitable for DC/DC converters.
  • Used in power supply designs.
  • Supports various power topologies.

UC1525AJ FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UC1525AJ?

The UC1525AJ operates from 8 V to 35 V.

What is the reference voltage for the UC1525AJ?

The UC1525AJ has a 5.1 V reference voltage trimmed to 1%.

What is the oscillator frequency range of the UC1525AJ?

The oscillator frequency range for the UC1525AJ is 100 Hz to 500 kHz.

What is the maximum duty cycle for the UC1525AJ?

The maximum duty cycle for the UC1525AJ is 49%.

What power supply topologies does the UC1525AJ support?

The UC1525AJ supports Boost, Flyback, Forward, Full bridge, Half bridge, and Push pull topologies.

What control mode does the UC1525AJ use?

The UC1525AJ uses Voltage control mode.

What are the key features of the UC1525AJ?

Key features include an error amplifier, multi-topology support, soft start, and a synchronization pin.

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