PMP7969

High-Efficiency 4 Phase Synchronous Boost Conv for Automotive Trunk Amplifier App Reference Design

PMP7969

Design files

Overview

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
Output voltage options PMP7969.1
Vin (Min) (V) 9
Vin (Max) (V) 16
Vout (Nom) (V) 24
Iout (Max) (A) 25
Output Power (W) 600
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Boost- Multiphase^Boost- Synchronous

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

SNVU308.PDF (1306 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

SNVR292.PDF (259 K)

Detailed schematic diagram for design layout and components

SNVR293.PDF (135 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDREF6.ZIP (1923 K)

Files used for 3D models or 2D drawings of IC components

TIDCA65.ZIP (308 K)

Design file that contains information on physical board layer of design PCB

TIDREF5.PDF (2795 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Boost controllers (external switch)

LM51223-65V Wide Vin, Current Mode Synchronous Boost Controller with Multiphase Capability

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Linear & low-dropout (LDO) regulators

LP2951100-mA, 30-V, low-dropout voltage regulator with power good & enable

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N-channel MOSFETs

CSD18501Q5A40-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 3.2 mOhm

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Real-time clocks (RTCs) & timers

LMC555World’s smallest 555 timer with low power, high accuracy and a Fmax of 3MHz

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Technical documentation

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Test report PMP7969 Test Results Aug. 14, 2013

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