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UC2572D The Texas Instruments UC2572D is a negative output flyback pulse width modulator. It operates within a 4.75V to 30V supply range and features a 100kHz frequency.
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UC2572D

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC2572D is a negative output flyback pulse width modulator. It operates within a 4.75V to 30V supply range and features a 100kHz frequency.
✓ Total Stock: 55 pcs
$ Price Range: $0.78

UC2572D Available from 1 distributor

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✓ Non-Authorised
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Speed Components Ltd ✓
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55 pcs
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UC2572D Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
Voltage Supply
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UC2572D Description

Short technical summary and product information.

The UC2572D from Texas Instruments is a pulse width modulator designed for negative output flyback switching converters. It is optimized for use with an external PMOS switch and converts a positive input voltage to a regulated negative output voltage.

 

This device operates with an input voltage range of 4.75V to 30V and a typical frequency of 100kHz. It supports a maximum duty cycle of 92% and includes features such as current limit and ramp control. The UC2572D is housed in an 8-SOIC surface mount package.

 

Key internal components include a precision reference, an error amplifier, an oscillator, a PWM comparator, and a gate driver. The integrated undervoltage lockout (UVLO) circuit ensures sufficient input voltage before switching begins, and a pulse-by-pulse current limit protects the device. Its topology is a single inductor flyback for negative voltage generation.

 

The UC2572D is suitable for applications requiring negative voltage generation through a flyback topology. Its surface mountable 8-SOIC package facilitates integration into compact designs.

UC2572D Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC2572D Negative Output Flyback Pulse Width Modulator
Subcategory: DC DC Switching Controllers

UC2572D Compliance

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

UC2572D Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

UC2572D Features

  • Negative output flyback pulse width modulator.
  • Operates from 4.75V to 30V supply.
  • Features 100kHz switching frequency.
  • Supports 92% maximum duty cycle.
  • Surface mount 8-SOIC package.

UC2572D Applications

  • Suitable for flyback converter designs.
  • Used in negative output voltage applications.
  • Ideal for isolated power supplies.
  • Works in step-up and step-down configurations.

UC2572D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the UC2572D?

4.75V to 30V.

What package does the UC2572D come in?

8-SOIC (0.154", 3.90mm Width) surface mount package.

What is the operating temperature range?

-40°C to 85°C.

What is the switching frequency?

100kHz.

What is the maximum duty cycle?

92%.

What topology does the UC2572D use?

Flyback.

What control features are included?

Current limit and ramp.

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