MIC2827 Datasheet, PDF (4/27 Pages) Micrel Semiconductor – Triple Output PMIC with HyperLight Load™ DCDC, two LDOs, and I2C Control

Micrel, Inc.
Pin Configuration
MIC2827
14-Pin 2.5mm x 2.5mm Thin MLF^® (MT)
(Top View)
Pin Description
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
EP
Pin Name
LDO1OUT
LDO2OUT
LDO2IN
N/C
IRQb
SW
DGND
DVIN
SDA
SCL
FB
AGND
EN
LDO1IN
HS PAD
Pin Function
Output of LDO1: Requires a minimum 1µF ceramic capacitor-to-AGND.
Output of LDO2: Requires a minimum 1µF ceramic capacitor-to-AGND.
External Input Supply Rail to LDO2. Requires a minimum 1µF ceramic capacitor
to AGND.
Fault Output (open drain).
Switch (Output): Internal power MOSFET output switches.
Switch Ground Pin.
Input Voltage: Requires a close minimum 2.2µF ceramic capacitor to DGND.
Fast-mode 400kHz I²C Data Input/Output pin.
Fast-mode 400kHz I²C Clock Input pin.
Feedback Pin Connected to VOUT to sense output voltage.
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 I²C control
is used for startup and shutdown.
External Input Supply Rail to LDO1. Requires a minimum 1µF ceramic capacitor
to AGND.
Exposed Heat-Sink Pad.
July 2009
4
M9999-072709-A