UC3525BDW The Texas Instruments UC3525BDW is a PWM controller designed for switching power supplies. It operates from 8V to 35V and comes in a 16-SOIC package.
Mfr Part #:

UC3525BDW

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC3525BDW is a PWM controller designed for switching power supplies. It operates from 8V to 35V and comes in a 16-SOIC package.
Total Stock: 2,633 pcs
$ Price Range: $5.92

UC3525BDW Available from 2 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,500 pcs
2500 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
133 pcs
133 pcs On Request 1 On Request On Request 04+ On Request On Request

UC3525BDW Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Halogen Free
Industrial Grade
Lead Style
Medical Grade
Military Grade
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
SVHC Present
Supplier Device Package
Supplier Package
Synchronous Rectifier
Tape & Reel
Topology
Voltage

UC3525BDW Description

Short technical summary and product information.

The UC3525BDW from Texas Instruments is a pulse width modulator integrated circuit designed for various switching power supply applications. It offers enhanced performance with a lowered external parts count.

 

Key electrical specifications include an operating voltage range of 8V to 35V and a frequency range from 100Hz to 400kHz. The maximum duty cycle is 49%. The device features a 5.1V buried Zener reference trimmed to ±0.75% and includes control features such as dead time control, frequency control, ramp, and soft start.

 

This controller supports multiple topologies including Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, and Push-Pull. It has 2 outputs and a single output phase, with a positive output configuration. The device also features a synchronous rectifier and clock sync capability.

 

The UC3525BDW is available in a 16-SOIC package with surface mount mounting type. The operating temperature range is 0°C to 70°C (TA). The standard package quantity is 40 units per tube. Note that this part is obsolete and not recommended for new designs.

UC3525BDW Quick Information

Product Type: PWM Controller
Canonical Name: UC3525B PWM Controller
Subcategory: DC-DC Switching Controllers

UC3525BDW Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: No

UC3525BDW Estimated Pricing

Qty Low High
1+ $5.92 $5.92

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

UC3525BDW Features

  • Operates from 8V to 35V.
  • Frequency range 100Hz to 400kHz.
  • Supports multiple switching topologies.
  • Includes soft start and dead time control.
  • Packaged in a 16-SOIC surface mount.

UC3525BDW Applications

  • Ideal for step-up and step-down converters.
  • Use in forward or flyback topologies.
  • Supports full-bridge and half-bridge designs.
  • Suitable for push-pull power converter circuits.

UC3525BDW FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the UC3525BDW?

The UC3525BDW operates from 8V to 35V.

What is the operating temperature range of the UC3525BDW?

The operating temperature range is 0°C to 70°C.

What package is the UC3525BDW available in?

It is available in a 16-SOIC (0.295", 7.50mm width) surface-mount package.

What switching frequency range does the UC3525BDW support?

The switching frequency range is 100Hz to 400kHz.

How many outputs does the UC3525BDW have?

It has two transistor-driver outputs.

What is the maximum duty cycle of the UC3525BDW?

The maximum duty cycle is 49%.

Which converter topologies are supported by the UC3525BDW?

It supports buck, boost, flyback, forward converter, full-bridge, half-bridge, and push-pull topologies.

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