Specification	MIC2203YMM

Current - Output	300 mA
Frequency - Switching	1 MHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	10-MSOP, 10-TFSOP
Package / Case [x]	3 mm
Package / Case [x]	0.118 in
Supplier Device Package	10-MSOP
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	2.3 V
Voltage - Output (Max) [Max]	5.5 V
Voltage - Output (Min/Fixed) [Min]	0.5 V

MIC2203 Series

1MHz 300mA Synchronous PWM Buck Regulator w/Sync

Part	Frequency - Switching	Output Configuration	Number of Outputs	Voltage - Input (Min) [Min]	Mounting Type	Voltage - Input (Max) [Max]	Voltage - Output (Max) [Max]	Current - Output	Supplier Device Package	Topology	Voltage - Output (Min/Fixed) [Min]	Function	Output Type	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case [x]	Package / Case [x]
Microchip Technology MIC2203BML-TR	1 MHz	Positive	1	2.3 V	Surface Mount	5.5 V	5.5 V	300 mA	10-MLF® (3x3)	Buck	0.5 V	Step-Down	Adjustable	10-MLF® 10-VFDFN Exposed Pad	-40 °C	125 ¯C
Microchip Technology MIC2203YMM	1 MHz	Positive	1	2.3 V	Surface Mount	5.5 V	5.5 V	300 mA	10-MSOP	Buck	0.5 V	Step-Down	Adjustable	10-MSOP 10-TFSOP	-40 °C	125 ¯C	3 mm	0.118 in
Microchip Technology MIC2203BMM	1 MHz	Positive	1	2.3 V	Surface Mount	5.5 V	5.5 V	300 mA	10-MSOP	Buck	0.5 V	Step-Down	Adjustable	10-MSOP 10-TFSOP	-40 °C	125 ¯C	3 mm	0.118 in
Microchip Technology MIC2203YML-TR	1 MHz	Positive	1	2.3 V	Surface Mount	5.5 V	5.5 V	300 mA	10-MLF® (3x3)	Buck	0.5 V	Step-Down	Adjustable	10-MLF® 10-VFDFN Exposed Pad	-40 °C	125 ¯C
Microchip Technology MIC2203YMM-TR	1 MHz	Positive	1	2.3 V	Surface Mount	5.5 V	5.5 V	300 mA	10-MSOP	Buck	0.5 V	Step-Down	Adjustable	10-MSOP 10-TFSOP	-40 °C	125 ¯C	3 mm	0.118 in

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	200	$ 1.71
Microchip Direct	TUBE	1	$ 2.14
		25	$ 1.78
		100	$ 1.62
		1000	$ 1.56
		5000	$ 1.55
Newark	Each	100	$ 1.67

Description

General part information

MIC2203 Series

The MIC2203 is a high efficiency 1MHz PWM synchronous buck switching regulator. The MIC2203 features low noise constant frequency PWM operation with a low dynamic supply current of <1mA. The low noise and efficient operation both make the MIC2203 well suited for sensitive RF, and audio power applications.

The MIC2203 operates from 2.3V to 5.5V input and can supply over 300mA of output current with output voltages down to 0.5V. Additionally, the MIC2203 can be synchronized to an external clock, or multiple MIC2203s can easily be daisy-chained with the SYNCLOCK feature.

The MIC2203 has a high loop bandwidth with corresponding ultra fast transient response times. This reduces the output capacitor size, and is very useful when powering applications that require fast dynamic response such as CPU cores and RF circuitry in high performance cellular phones and PDAs.

Documents

Technical documentation and resources

MIC2203 - High Efficiency 1MHz Synchronous Buck Regulator

Data Sheets

Product Change Notice EN

Datasheet