Synchronous Step-Down Controller Evaluation Board

Overview

The NCP5217A is a synchronous step-down controller for high performance battery-power systems. The NCP5217A includes a high efficiency PWM controller. A pin is provided to enable or disable force PWM mode of operation. An internal power good voltage monitor tracks the SMPS output. NCP5217A also features soft-start sequence, UVLO for VCC and switcher, overvoltage protection, overcurrent protection, undervoltage protection and thermal shutdown. The IC is packaged in QFN-14.

  • Notebook Computers
  • Tablet Computers
  • 0.8% accuracy 0.8 V reference
  • 4.5 V to 27 V battery/adapter voltage range
  • Selectable power saving mode/force PWM mode
  • Lossless inductor current sensing
  • Programmable adaptive voltage positioning (AVP)
  • Input supply feedforward control
  • Internal Soft-Start
  • Integrated output discharge (Soft Stop)
  • Built-in adaptive gate driver
  • PGOOD indication
  • Overvoltage, undervoltage and overcurrent protection
  • Thermal shutdown

Evaluation/Development Tools

Product

Type

Ref. Design

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Part Used

Reference Price

Synchronous Step-Down Controller Evaluation Board

Evaluation Board

No

Active

$90

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Technical Documentation

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NCP5217AGEVB_BOM_ROHS.PDF

0

Eval Board: BOM

189.44 KB

EN

Eval Board: BOM

April 24, 2010

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NCP5217AGEVB_SCHEMATIC.PDF

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Eval Board: Schematic

140.29 KB

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Eval Board: Schematic

April 24, 2010

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NCP5217AGEVB_GERBER.ZIP

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Eval Board: Gerber

220.16 KB

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Eval Board: Gerber

April 24, 2010

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NCP5217AGEVB_TEST_PROCEDURE.PDF

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Eval Board: Test Procedure

217.09 KB

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Eval Board: Test Procedure

April 24, 2010

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