MIC2571 Series

One Cell Boost Regulator

Catalog

One Cell Boost Regulator

Part	Voltage - Input (Max) [Max]	Frequency - Switching	Output Type	Supplier Device Package	Number of Outputs	Current - Output	Output Configuration	Function	Package / Case	Package / Case [custom]	Package / Case	Voltage - Output (Min/Fixed)	Voltage - Input (Min) [Min]	Mounting Type	Voltage - Output (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Topology
Microchip Technology MIC2571-2BMM	15 V	20 kHz	Adjustable	8-MSOP	1	1 A	Positive	Step-Up	8-MSOP 8-TSSOP	0.118 in	3 mm	0.9 V	0.9 V	Surface Mount	36 V	85 °C	-40 °C	Boost
Microchip Technology MIC2571-2YMM	15 V	20 kHz	Adjustable	8-MSOP	1	1 A	Positive	Step-Up	8-MSOP 8-TSSOP	0.118 in	3 mm	0.9 V	0.9 V	Surface Mount	36 V	85 °C	-40 °C	Boost
Microchip Technology MIC2571-2BMM-TR	15 V	20 kHz	Adjustable	8-MSOP	1	1 A	Positive	Step-Up	8-MSOP 8-TSSOP	0.118 in	3 mm	0.9 V	0.9 V	Surface Mount	36 V	85 °C	-40 °C	Boost
Microchip Technology MIC2571-1BMM-TR	15 V	20 kHz	Programmable	8-MSOP	1	1 A	Positive	Step-Up	8-MSOP 8-TSSOP	0.118 in	3 mm	2.85 V 3.3 V 5 V	0.9 V	Surface Mount		85 °C	-40 °C	Boost
Microchip Technology MIC2571-1BMM	15 V	20 kHz	Programmable	8-MSOP	1	1 A	Positive	Step-Up	8-MSOP 8-TSSOP	0.118 in	3 mm	2.85 V 3.3 V 5 V	0.9 V	Surface Mount		85 °C	-40 °C	Boost
Microchip Technology MIC2571-2YMM-TR	15 V	20 kHz	Adjustable	8-MSOP	1	1 A	Positive	Step-Up	8-MSOP 8-TSSOP	0.118 in	3 mm	0.9 V	0.9 V	Surface Mount	36 V	85 °C	-40 °C	Boost
Microchip Technology MIC2571-1YMM	15 V	20 kHz	Programmable	8-MSOP	1	1 A	Positive	Step-Up	8-MSOP 8-TSSOP	0.118 in	3 mm	2.85 V 3.3 V 5 V	0.9 V	Surface Mount		85 °C	-40 °C	Boost

Catalog

One Cell Boost Regulator

Key Features

• + 0.9V to 15V operation

• + 120µA typical quiescent current

• + Complete regulator fits 0.3 in² area

• + 2.85V/3.3V/5V selectable output voltage (MIC2571-1)

• + Adjustable output up to 36V (MIC2571-2)

• + 1A current limited pass element

• + Frequency synchronization input

• + 8-lead MSOP package

Description

MIC2571 is a micropower boost switching regulator that operates from one alkaline, nickel-metal-hydride cell, or lithium cell. The MIC2571 accepts a positive input voltage between 0.9V and 15V. Its typical no-load supply current is 120µA. The MIC2571 is available in selectable fixed output or adjustable output versions. The MIC2571-1 can be configured for 2.85V, 3.3V, or 5V by connecting one of three separate feedback pins to the output. The MIC2571-2 can be configured for an output voltage ranging between its input voltage and 36V, using an external resistor network. The MIC2571 has a fixed switching frequency of 20kHz. An external SYNC connection allows the switching frequency to be synchronized to an external signal. The MIC2571 requires only four components (diode, inductor, input capacitor and output capacitor) to implement a boost regulator. A complete regulator can be constructed in a 0.3 in² area. All versions are available in an 8-lead MSOP with an operating range from -40°C to +85°C.