UCC28703DBVR

$0.96

Description：IC OFFLINE SW FLYBACK SOT23-6
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:4ffa4711d706 Category: AC DC Converters, Offline Switchers Brand: Texas Instruments

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Product introduction

UCC28703DBVR is listed in the AC DC Converters, Offline Switchers range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC OFFLINE SW FLYBACK SOT23-6. Review the specifications below when checking this part for your BOM.

AC DC Converters, Offline Switchers specifications for UCC28703DBVR

Description：IC OFFLINE SW FLYBACK SOT23-6
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Output Isolation：Isolated
Internal Switch(s)：No
Voltage - Breakdown：-
Topology：Flyback
Voltage - Start Up：21 V
Voltage - Supply (Vcc/Vdd)：9V ~ 35V
Duty Cycle：-
Frequency - Switching：1kHz ~ 130kHz
Fault Protection：Current Limiting, Over Voltage
Control Features：-
Operating Temperature：-20°C ~ 125°C (TJ)
Package / Case：SOT-23-6
Supplier Device Package：SOT-23-6
Mounting Type：Surface Mount
Grade：-
Qualification：-
Power (Watts)：-

AC DC Converters, Offline Switchers datasheet and documents for UCC28703DBVR

UCC28703DBVR

AC DC Converters, Offline Switchers Overview

The UCC28703DBVR is a constant-voltage, constant-current PWM controller designed for primary-side regulated flyback converters. It operates within an input voltage range of 9 V to 35 V and supports a switching frequency from 875 Hz to 140 kHz. The device delivers up to 25 mA output current with a maximum duty cycle of 99%. Packaged in a SOT-23-6 surface-mount format, it functions reliably across a temperature range of -20°C to +125°C.

AC DC Converters, Offline Switchers Feature Summary

Implements primary-side regulation to eliminate optocouplers and secondary feedback components.
Provides integrated constant-voltage and constant-current control modes.
Features valley switching capability to reduce switching losses and electromagnetic interference.

AC DC Converters, Offline Switchers Applications

Universal AC/DC power adapters
Chargers for portable electronic devices
Standby power supplies

AC DC Converters, Offline Switchers Procurement Notes

Verify the suffix 'DBVR' confirms the SOT-23-6 package and tape-and-reel delivery format. Ensure compatibility with primary-side regulated flyback topologies requiring isolated constant voltage and current outputs. Confirm operating temperature specifications align with target environmental conditions.

AC DC Converters, Offline Switchers Selection Notes

Select this component for cost-sensitive designs prioritizing reduced bill-of-materials through primary-side regulation. Suitable for applications requiring compact form factors due to the small SOT-23-6 footprint. Ideal for low-power offline converters where high efficiency and minimal external component count are critical design constraints.

AC DC Converters, Offline Switchers Part Context

Part of the UCC2870x family of primary-side regulated controllers. Shares core functionality with UCC28700, UCC28701, and UCC28702 variants, differing primarily in specific electrical characteristics or packaging options while maintaining the same fundamental flyback control architecture.