MIC2253 Series

3.5A 1MHz High Efficiency Boost Regulator w/OVP & Softstart

Catalog

3.5A 1MHz High Efficiency Boost Regulator w/OVP & Softstart

Part	Output Configuration	Synchronous Rectifier	Supplier Device Package	Mounting Type	Output Type	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Output (Max) [Max]	Voltage - Input (Max) [Max]	Current - Output	Topology	Function	Number of Outputs	Frequency - Switching	Voltage - Input (Min) [Min]	Voltage - Output (Min/Fixed)
Microchip Technology MIC2253-06YML-TR	Positive		12-MLF™ (3x3)	Surface Mount	Adjustable	12-MLF® 12-VFDFN Exposed Pad	-40 °C	125 ¯C	30 V	10 V	3.5 A	Boost	Step-Up	1	1 MHz	2.5 V	1.245 V

Catalog

3.5A 1MHz High Efficiency Boost Regulator w/OVP & Softstart

Key Features

• * 3.5A minimum switch current

• * 1.245V ±3% feedback voltage

• * 2.5V to 10V input voltage

• * Output over-voltage protection (OVP)

• * Externally programmable soft-start

• * Output voltage up to 30V (max)

• * Fixed 1MHz operation

• * <1% line regulation

• * 0.1µA shutdown current

• * Over temperature protection

• * Under-voltage lockout (UVLO)

• * -40°C to +125°C junction temperature range

Description

The MIC2253 is a high power density 1MHz PWM DC/DC boost regulator. The 3.5A minimum switch current limit combined with a 1MHz switching frequency allows the MIC2253 to use smaller inductors and deliver high power in a tiny solution size. The 2.5V to 10V input voltage range of MIC2253 allows direct operation from 1- and 2-cell Li-Ion as well as 3- to 4-cell NiCad, NiMH, Alkaline, or lithium batteries. Maximum battery life is assured with a low 0.1µA shutdown current. To prevent a high inrush current, a minimum 1ms soft-start period is set by default and the MIC2253 has the ability to extend the soft-start period with an external capacitor.