40V Dual 1A Power Module w/Low Noise LDOs Split-Rail (±5V) Output Voltages Reference Design
PMP8372
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Description

The PMP8372 design is optimized for small size and uses the TPS84250 step-down power module on the top- side with the TPS84259 negative output power module on the bottom-side to implement both positive and negative output voltages from a 12V/24V source. The output voltages can be adjusted from +/-3V to +/-15V with resistor changes. The design is capable of 1-A outputs. The positive-input TPS7A4700 LDO and negative-input TPS7A3301 LDO are included for a low noise, high PSRR solution that is ideal for powering bipolar amplifiers, data converters, or other noise-sensitive analog circuitry.

Features
  • Wide input Voltage range from 7V to 40V
  • Dual output voltages can be adjusted from +/-3V to +/-15V, which are capable of 1A outputs
  • High PSRR LDOs: Positive output 80dB PSRR @ 100Hz and Negative output 72dB PSRR @ 100KHz
  • Positive output noise: 7μVrms (10Hz, 100kHz), Negative output noise: 30μVrms (10Hz, 100kHz)
  • Ultra Low noise for powering bipolar amplifier, data converter, or other noise-sensitive analog circuitry

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Design Files

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Part Number Status

PMP8372:
40V, Dual 1A Power Module Solution with Low Noise LDOs, Split-Rail (±5V) Output Voltages

ACTIVE

TI Devices (4)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS7A33  1-A, high-PSRR, negative, adjustable low-dropout voltage regulator with enable  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A47  1-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS84250  7V to 50V, 2.5A Step-Down Integrated Power Solution  Step-down (buck) regulators  Sample & Buy Not Available
TPS84259  4.5V to 40V, 2A up to 15W Negative-Output Integrated Power Solution  Step-down (buck) regulators  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS7A33 Download Download
Download Download
TPS7A47 Download Download
TPS84250 Download Download
TPS84259 Download Download

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Technical documentation

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User guides (1)
Title Type Size (KB) Date
PDF 1594 21 Sep 2012
Design files (4)
Title Type Size (KB) Date
PDF 203 22 Apr 2014
PDF 126 22 Apr 2014
PDF 25 21 Sep 2012
ZIP 421 21 Sep 2012

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