Texas Instruments / Burr-Brown PWR 5303 DC/DC Converter
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Texas Instruments / Burr-Brown PWR 5303 DC/DC Converter

Part Numbers: 9504/T00846, 9449/T00563

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Stock # 46974-1
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Texas Instruments / Burr-Brown PWR53XX Series DC/DC Converters

  • Extended Temperature Range: -40 Degrees to 85 Degrees
  • Efficiency Rating of More than 80%
  • Short-Circuit Protection
  • Six-Sided Shielding
  • Remote On/Off
  • Surface Mount Construction


The Texas Instruments / Burr-Brown PWR53XX Series DC/DC Converters is a family of wide input range DC/DC converters that accept either 9.2 to 18VDC, 18 to 36VDC, or 36 to 72VDC depending on the model selected. A fixed-frequency, 200kHz-driven, push-pull oscillator input stage is used to ensure predictable and controlled performance. This eliminates the high peak voltages or currents present in other topologies, which reduce reliability.

A two-section pi-filter is used in the input stage to reduce reflected ripple current to a typical level of 30mAp-p. The design of this filter network also ensures stable frequency response of the PWR53XX Series, regardless if input voltage or output load current. Six-sided shielding suppresses electromagnetic radiation, which may disturb sensitive analog measurements or interfere with system timing signals.

All PWR53XX models will operate safely even at no load up to a temperature of 55 Degrees Celsius, although there is a minimum load established for regulation measurements.

The controller used in the input stage of the PWR53XX Series has been designed to provide cycle-by-cycle current limiting for continuous short-circuit protection. In addition, it features soft-start, maximum duty cycle control, under-voltage lockout, and fully latched logic, which incorporates double pulse suppression. These features guarantee controlled, predictable operation to enhance unit reliability even under adverse operating conditions.

Rugged MOSPOWER transistors permit higher frequency operation (200kHz) with less complicated drive circuitry than is possible with bipolar power transistors. Reduced parts count adds to the PWR53XX Series reliability.

The PWR53XX Series offers exceptional line and load regulation over the full input voltage and output load current range and not just some fractional portion. The output stage of the PWR53XX Series is designed to solve the problems associated with closing a control loop across a voltage isolation barrier. It is a more stable and reliable alternative to a simple optical coupler. Transformer isolation between the output stage and the input oscillator preserves barrier isolation without the degradation over that is inherent with some optical couplers. The voltage reference and gain stage of this output circuit makes it possible for the PWR45XX to offer such exceptionable regulation.

Product Family: PWR53XX Series, PWR53XX, PWR5303, PWR5303 Series, PWR 53XX Series, PWR 53XX, PWR 5303, PWR 5303 Series, 5303, PWR

Important Notice: Please note that any additional items included with this equipment such as accessories, manuals, cables, calibration data, software, etc. are specifically listed in the above stock item description and/or displayed in the photos of the equipment. Please contact one of our Customer Support Specialists if you have any questions about what is included with this equipment or if you require any additional information.

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Texas Instruments / Burr-Brown PWR53XX Series DC/DC ConvertersTexas Instruments / Burr-Brown PWR53XX Series DC/DC ConvertersTexas Instruments / Burr-Brown PWR53XX Series DC/DC Converters
Texas Instruments / Burr-Brown PWR53XX Series DC/DC Converters

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