Tiny -60-V cuk reference design for automotive applications
PMP30602
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Key Document

Description

This tiny reference design delivers -60-V output voltage from an input voltage around 5 V. It is typically generated by an automotive pre regulator. The LM5001-Q1 is the controller, TLV271-Q1 converts the negative output voltage to be suitable for positive feedback (FB) input of the LM5001.  In general, this converter is used as auxiliary supply for LIDAR applications.

Features
  • Peak efficiency 75% despite large duty cycle, total power losses < 500 mW
  • Fine thermal behavior, temperature rise less than +20K at full load
  • Load regulation less than 30 mV means less than 0.05%
  • Output ripple around 200mVpp
  • Low reflected ripple (= conducted emissions) by Cuk topology (= inverting SEPIC)

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Schematic/Block Diagram

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Design Files

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Parametrics
 PMP30602.1
(Output Voltage 1)
Vin (Min) (V)4.5
Vin (Max) (V)5.5
Vout (Nom) (V)-60
Iout (Max) (A).02
Output Power (W)1.2
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyOther

TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM5001-Q1  Automotive Grade 3.1-75V Wide Vin, 1A Current Mode Non-Synchronous Switch Mode Regulator  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules
TLV271-Q1  Single automotive 16V, 3MHz, 550-uA/ch, rail-to-rail output op amp  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM5001-Q1 Download
TLV271-Q1 Download Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 1471 04 Mar 2019
Design files (6)
Title Type Size (KB) Date
ZIP 19 04 Mar 2019
ZIP 368 04 Mar 2019
PDF 326 04 Mar 2019
PDF 71 04 Mar 2019
PDF 136 04 Mar 2019
PDF 86 04 Mar 2019

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