MP2207 – 16V, 4A, 1.3MHz SYNCHRONOUS STEP-DOWN CONVERTER

MP2207 Rev. 0.92

www.MonolithicPower.com

4

9/1/2010

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

Preliminary Specifications Subject to Change

© 2010 MPS. All Rights Reserved.

PIN FUNCTIONS

SOICE

Pin#

QFN

Pin #

Name

Description

5

6

VCC

Bias Supply. This supplies power to both the internal control circuit and the gate

drivers. A decoupling capacitor to ground is required close to this pin.

3

4, 7

IN

Input Supply. This supplies power to the high side switch. A decoupling

capacitor to ground is required close to this pin to reduce switching spikes.

6, 7

3, 8

SW

Switch Node Connection to the Inductor. These pins connect to the internal high

and low-side power MOSFET switches. All SW pins must be connected together

externally.

2

2, 9

GND

Ground. Connect these pins with larger copper areas to the negative terminals

of the input and output capacitors.

4

5

BS

Bootstrap. A capacitor between this pin and SW provides a floating supply for

the high-side gate driver.

1

1

FB

Feedback. This is the input to the error amplifier. An external resistive divider

connected between the output and GND is compared to the internal 0.8V

reference to set the regulation voltage.

8

10

EN/SYNC

Enable and Frequency Synchronization Input Pin. Forcing this pin below 0.4V

shuts down the part. Forcing this pin above 1.6V turns on the part. Applying a

1MHz to 2MHz clock signal to this pin synchronizes the internal oscillator

frequency to the external source.