MP2174C

– 5.5V, 4A, 1.1MHZ, SYNCHRONOUS STEP-DOWN SWITCHER

MP2174C Rev. 1.0

www.MonolithicPower.com

2

8/7/2019

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© 2019 MPS. All Rights Reserved.

ORDERING INFORMATION

Part Number*

Package

Top Marking

MP2174CGG

QFN12 (2mm x 2mm)

See Below

* For Tape & Reel, add suffix

–Z (e.g. MP2174CGG–Z).

TOP MARKING

KC: Product code of MP2174CGG

Y: Year code

LLL: Lot number

PACKAGE REFERENCE

QFN-12 (2mmx2mm)

PIN FUNCTIONS

Pin #

Name

Description

1

PVIN

Supply voltage to power FETs. PVIN is connected to VIN internally.

2, 11

SW

Switch output. Pin 2 and 11 can be connected together.

3, 12

PGND

Power ground. Pin 3 and 12 can be connected together.

4

AGND

Quiet ground for controller circuits.

5

NC

No connection. Leave this pin open. Do not connect it to ground.

6

OUT

Input sense pin for output voltage.

7

FB

Feedback. An external resistor divider from the output to GND, tapped to the FB pin,

sets the output voltage.

8

EN

On/off control.

9

PG

Power good indicator. The output of this pin is an open drain pin.

10

VIN

Supply voltage to internal control circuitry. VIN is connected to PVIN internally.