Efficient, low-heat, CISPR 25 class 5-compliant power reference design for infotainment display PMP22030 (ACTIVE)

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Key Document

Description

This reference design is focused on the power tree for an automotive infotainment display unit covering various power supply rails including two off-battery converters providing 5.0-V and 3.3-V, and intermediary system rails of 1.8-V and 1.1-V. The test results demonstrate high efficiency, low heat dissipation and CISPR 25 class 5-conducted emissions compliance. 

Features
  • Hardware tested automotive infotainment display unit power tree passing CISPR 25 class 5-conducted EMI limits
  • All switching converters operating above 2-MHz to avoid AM band
  • High light load efficiency to reduce standby current consumption
  • Less than 30oC temperature rise under full load current conditions for all switching converters
  • Stable converter operation with over 65o phase margin and over 20-dB gain margin

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Design Files

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Parametrics
 PMP22030.1
(Output Voltage 1)
PMP22030.2
(Output Voltage 2)
PMP22030.3
(Output Voltage 3)
PMP22030.4
(Output Voltage 4)
PMP22030.5
(Output Voltage 5)
PMP22030.6
(Output Voltage 6)
Vin (Min) (V)64.56333
Vin (Max) (V)365.5363.53.53.5
Vout (Nom) (V)53.33.31.13.31.8
Iout (Max) (A)1.5.32.52.5.5.3
Output Power (W)7.5.998.252.751.65.54
Isolated/Non-IsolatedNon-IsolatedNon-IsolatedNon-IsolatedNon-IsolatedNon-IsolatedNon-Isolated
Input TypeDCDCDCDCDCDC
TopologyBuck- SynchronousLinear RegulatorBuck- SynchronousBuck- SynchronousOtherLinear Regulator

TI Devices (7)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM63615-Q1  3.5-V to 36-V, 1.5-A step-down voltage converter with spread spectrum  Step-down (buck)  Not Available Not Available
LM63625-Q1  3.5-V to 36-V, 2.5-A step-down voltage converter with spread spectrum  Step-down (buck)  Not Available Not Available
LP5912-Q1  Automotive 500-mA low-noise low-IQ low-dropout (LDO) linear regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TLV733P-Q1  Automotive capacitor-free 300-mA LDO regulator with foldback current limit for portable devices  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS22918-Q1  5.5V, 2A, 52mΩ Automotive High-Side Load Switch with Adjustable Rise Time & Quick Output Discharge  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS3851-Q1  Automotive High-Accuracy Voltage Supervisor With Integrated Watchdog Timer  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS62090-Q1  Automotive: 3A, 2.5 to 6V input, up to 97% efficiency, 3x3 QFN, Step-Down Converter  Step-down (buck)  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LP5912-Q1 Download Download
TLV733P-Q1 Download -
Download Download
TPS22918-Q1 Download Download
TPS3851-Q1 Download
TPS62090-Q1 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 5313 12 Jul 2019
Design files (6)
Title Type Size (KB) Date
ZIP 600 12 Jul 2019
ZIP 1134 12 Jul 2019
PDF 1005 12 Jul 2019
PDF 192 12 Jul 2019
PDF 60 12 Jul 2019
PDF 363 12 Jul 2019

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