High-Efficiency 4 Phase Synchronous Boost Conv for Automotive Trunk Amplifier App Reference Design PMP7969 (ACTIVE)

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Description

PMP7969 is a very high efficiency 4 phase boost controller synchronizable to external clock. Light load efficiency is excellent due to phase shedding capability. Synchronous rectifier also improves efficiency. High effective switching frequency obtained with multiphase over single phase, and current sharing accuracy of ±10%. Bypass mode capable when Vin > Vout.

Features
  • Very high efficiency at lower loads due to phase shedding capability
  • Synchronizable to external clock
  • Stackable for higher output currents
  • Current sharing accuracy of ±10%
  • Bypass mode capable when Vin > Vout
  • High effective switching frequency obtained with multiphase over single phase

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Schematic/Block Diagram

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Design Files

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Parametrics
 PMP7969.1
(Output Voltage 1)
Vin (Min) (V)9
Vin (Max) (V)16
Vout (Nom) (V)24
Iout (Max) (A)25
Output Power (W)600
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBoost- Multiphase
Boost- Synchronous

TI Devices (5)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CD4017B  CMOS Decade Counter with 10 Decoded Outputs  Specialty logic  Sample & Buy View Design Kits & Evaluation Modules
CSD18501Q5A  40V, N ch NexFET MOSFET™, single SON5x6, 3.2mOhm  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
LM5122  3-65V Wide Vin, Current Mode Synchronous Boost Controller with Multiphase Capability  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules
LMC555  World’s smallest 555 timer with low power, high accuracy and a Fmax of 3MHz  Clock & timing  Sample & Buy View Design Kits & Evaluation Modules
LP2951  30V, 100mA Micropower Voltage Regulators with Shutdown  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CD4017B Download Download
Download -
Download Download
Download Download
Download Download
CSD18501Q5A VSONP (DQJ)| 8 Download Download
LM5122 Download Download
Download -
LMC555 Download Download
Download
Download
LP2951 Download Download
Download -
Download -

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 1289 14 Aug 2013
Design files (5)
Title Type Size (KB) Date
ZIP 308 15 Apr 2015
ZIP 1923 15 Apr 2015
PDF 2795 15 Apr 2015
PDF 135 14 Aug 2013
PDF 259 14 Aug 2013

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