UCC25230 PWM Converter

Texas Instruments' 12 V to 105 V input, 0.2 A output switching converter

Texas Instruments UCC25230 PWM Converter Texas Instruments' UCC25230 is a highly integrated PWM converter operating as an isolated forward flyback. It has integrated high-side and low-side power switches and the control circuit includes all key converter functions. The power stage requires only one multiple winding coupled inductor and a few output capacitors for the complete solution. Voltage-mode feed-forward control with external compensation allows optimal output filter selection over a wide input voltage range. The UCC25230 has fixed frequency set internally at 380 kHz. It also includes input voltage UVLO and OVLO comparators with hysteresis as well as an input-good, open-collector output signal which can be used to enable PWM controllers. UCC25230 Datasheet

  Features   Applications
  • Highly integrated converter operating as a buck,
    or isolated forward-flyback, Flybuck™
  • Wide operating input voltage range from
    12 V to 100 V, 105-V surge
  • Up to 0.2 A output current
  • High density isolated standby bias supplies
  • DC-to-DC converters

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Texas Instruments
Part Number
Part Number
Packaging Voltage - Input Package  
UCC25230DRMT 296-29900-2-ND Tape & Reel 12 V ~ 75 V 8-VDFN
exposed pad
UCC25230 Datasheet
296-29900-1-ND Cut Tape
296-29900-6-ND Digi-Reel®

Evaluation Module
Texas Instruments
Part Number
Part Number
UCC25230EVM-754 296-30213-ND This EVM is to help evaluate the UCC25230 PWM device in a forward-flyback or flyback DC-to-DC converter topology for a 48 V telecom biasing supply. The targeted application is telecom module design with nominal 48 V input. The EVM is a dual-output converter. Each channel is nominal 12 V and 65 mA for a total output power of 1.5 W. The design is made on a small footprint and low profile, the effective circuit area for the bias portion is 0.6" x 0.5" x 0.15" (L x W x H). UCC25230EVM User's Guide