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MIC2253

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

Status: In Production

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
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

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.

Additional 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
Parametrics
Name
Value
Regulator Type
Step Up (Boost)
Input Voltage Range Min (V)
2.5
Input Voltage Range Max (V)
10
Output Voltage Range Min (V)
3
Output Voltage Range Max (V)
30
Output Current (mA) max
4000
Quiescent Current (mA) typ
15
Switching Frequency (kHz)
1000
Operating Temp Range
-40 to 125
Vfb (V)
1.245
Duty Cycle Max (%)
90
SHUTDOWN Current (µA) (Typ)
0.1
Switch current (A) typ
3.5

Documents

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Development Environment

  • Demo & Evaluation Boards
  • Application Examples
Demo & Evaluation Boards
MIC2253 3.5A 1MHz Boost Reg Eval Board
MIC2253 3.5A 1MHz Boost Reg Eval Board ( ADM00891 )

MIC2253 Evaluation Board was developed to evaluate the capabilities of the MIC2253 high-efficiency 3.5A switch current limit integrated switch, non-synchronous boost (step-up) regulator. The MIC2253 achieves over 90% efficiency while still switching at 1MHz over a broad load range.

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC2253-06YML-TR
0.023840
0.644302
12
VDFN
3x3x0.9mm
NiPdAu
e4
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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