MP9928GL datasheet(14/25 Pages) MPS

部品番号	MP9928GL

部品情報	4V-60V Input, Current Mode, Synchronous Step-Down Controller

PDF	25 Pages

Scroll/Zoom	100%

メーカー	MPS [Monolithic Power Systems]

ホームページ	http://www.monolithicpower.com

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14 / 25 page

MP9928—4V TO 60V SYNCHRONOUS STEP-DOWN CONTROLLER

MP9928 Rev. 1.0

www.MonolithicPower.com

5/20/2016

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

PIN FUNCTIONS (continued)

TSSOP

Pin #

QFN

Pin #

Name

Description

Bottom gate driver output. Connect this pin to the gate of the synchronous

N-channel MOSFET.

Switch node. Reference for the VBST supply and high current returns for

bootstrapped switch.

Top gate drive. The TG pin drives the gate of the top N-channel MOSFET.

The TG driver draws power from the BST capacitor and returns to SW pin,

providing a

true ﬂoating drive to the top N-channel MOSFET.

BST

Bootstrap. This pin is the positive power supply for the internal floating high

side MOSFET driver. Connect a bypass capacitor between this pin and

SW pin.

A diode from VCC1 to this pin charges the BST capacitor when the low

side switch is off.

MP9928GL データシート(PDF) 14 Page - Monolithic Power Systems