MIC2203 Datasheet, PDF (2/13 Pages) Micrel Semiconductor – High Efficiency 1MHz Synchronous Buck Regulator

Micrel, Inc.
MIC2203
Ordering Information
Part Number
Standard
Pb-Free
MIC2203BMM MIC2203YMM
MIC2203BML MIC2203YML
Output Voltage
Adjustable
Adjustable
Junction Temperature
Range
-40°C to +125°C
-40°C to +125°C
Package
MSOP-10L
3mm x 3mm MLF-10L
Pin Configuration
MSOP-10 (MM)
MLF-10 (ML)
Top View
Pin Description
Pin Number
1
2
3
4
5
6
7
8,9,10
EP
Pin Name
SW
VIN
SYNC_IN
SYNC_OUT
EN
FB
BIAS
GND
GND
Pin Function
Switch (Output): Internal power MOSFET output switches.
Supply Voltage (Input): Requires a bypass capacitor to GND.
SYNC_IN for the MIC2203, Sync the main switching frequency to a external
clock. Should be tied to ground when not in use.
SYNC_OUT a 50ns wide sync pulse to feed into SYNC_IN on MIC2203.
Can be left open or tied to ground when not used.
A low level EN will power down the device, reducing the quiescent current to
under 1µA.
Input to the error amplifier, connect to the external resistor divider network to set
the output voltage.
Internal circuit bias supply, nominally 2.3V. Must be de-coupled to signal ground
and can have a minimum of external DC loading.
Ground
Exposed backside pad, connect to Ground (MLF option only)
December 2004
2
M9999-120604
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