Automotive Buck-Boost DC-DC Converter for USB PD

This reference design provides design guide, data and other contents of Automotive Buck-Boost DC-DC Converter for USB PD.

PCB Photo (example)
  XPN3R804NC XPN3R804NC XPN3R804NC TPD7104AF TPD7104AF XPN7R104NC XPN7R104NC XPN7R104NC XPN7R104NC XPN7R104NC SSM6K804R XPN3R804NC XPN3R804NC

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Features

  • Efficiency (Option 1): 96.4 % (Max.) (Vin = 10.5 V, Vout = 15 V, Power = 45 W)
  • Efficiency (Option 2): 95.5 % (Max.) (Vin = 10.5 V, Vout = 15 V, Power = 45 W)
  • Outline size: 90 mm x 40 mm
  • Various MOSFET options

Description

Input voltage DC 5 to 18 V, 12.6 V (Typ.)
Output voltage DC 3.3 to 21 V
Output power 60 W
Circuit topology H-Bridge Buck-Boost Circuit
Efficiency Curve
Efficiency Curve

Design Documents

Design Documents contain the documents below.

Design Data

Design Data contains the contents listed below.

*1:Actual PCB was designed on CR5000BD. The other files were made from CR5000BD file.

*2:The data was generated on CR5000BD.

Used Toshiba Items

Part Number Device Category Portion Usage Description
Power MOSFET (N-ch single 30V<VDSS≤60V) H Bridge Switch (option1)・4
 N-ch MOSFET, 40 V, 20 A, 0.0071 Ω@10V, TSON Advance(WF)
Small Low ON resistance MOSFETs H Bridge Switch (option2)・4
 N-ch, MOSFET, 40V, 12A, 18mΩ@4.5V, TSOP6F
Power MOSFET (N-ch single 30V<VDSS≤60V) Switch・3
 N-ch MOSFET, 40 V, 40 A, 0.0038 Ω@10V, TSON Advance(WF)
Zener diode Gate Signal Protection・2
 16 V Zener Diode, SOD-323(USC)
Intelligent power device (High side power-MOSFET driver with built-in charge pump) Gate Driver・1
 Automotive Gate driver for High-side switch, PS-8

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