MIC2827 datasheet(4/27 Pages) MICREL

4 / 27 page

Micrel, Inc.

MIC2827

July 2009

M9999-072709-A

Pin Configuration

14-Pin 2.5mm x 2.5mm Thin MLF

® (MT)

(Top View)

Pin Description

Pin Number

Pin Name

Pin Function

LDO1OUT

Output of LDO1: Requires a minimum 1µF ceramic capacitor-to-AGND.

LDO2OUT

Output of LDO2: Requires a minimum 1µF ceramic capacitor-to-AGND.

LDO2IN

External Input Supply Rail to LDO2. Requires a minimum 1µF ceramic capacitor

to AGND.

N/C

IRQb

Fault Output (open drain).

Switch (Output): Internal power MOSFET output switches.

DGND

Switch Ground Pin.

DVIN

Input Voltage: Requires a close minimum 2.2µF ceramic capacitor to DGND.

SDA

Fast-mode 400kHz I²C Data Input/Output pin.

SCL

Fast-mode 400kHz I²C Clock Input pin.

Feedback Pin Connected to VOUT to sense output voltage.

AGND

Analog Ground. Must be connected externally to DGND.

Enable (Input): Executes default startup sequence. Active High. HIGH = ON,

LOW = OFF. Do not leave floating. The EN pin function is optional if I

2C control

is used for startup and shutdown.

LDO1IN

External Input Supply Rail to LDO1. Requires a minimum 1µF ceramic capacitor

to AGND.

HS PAD

Exposed Heat-Sink Pad.

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