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MIC2250

2A Isw Low EMI Boost Regulator w/Dithering

Status: In Production

Features:

  • Over 80% efficient for a 300:1 load range
  • 2.5V to 5.5V input voltage range
  • Output voltage adjustable to 32V
  • 52µA (typ) quiescent current
  • Constant peak current control reduces output ripple
  • EMI reduction circuitry
  • Stable with small ceramic capacitors
  • <1µA shutdown current
  • UVLO and thermal shutdown
  • 5-pin Thin SOT-23 package (MIC2250-1 and -2)
  • -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 MIC2250 is a general purpose DC/DC boost switching regulator that features low noise, EMI reduction circuitry, and high efficiency across a wide output current range.

The MIC2250 is optimized for noise-sensitive hand held battery powered applications. A proprietary control method allows low ripple across the output voltage and current ranges. The MIC2250 incorporates a pseudo-random dithering function to reduce EMI levels up to 10dB enabled by the DITH pin.

The MIC2250 is designed for use with inductor values from 4.7µH to 22µH, and is stable with ceramic capacitors from 1µF to 22µF.

The MIC2250 attains a high peak efficiency up to 90% at 100mA and excellent light load efficiency of 80% at 1mA.

High power density is achieved with the MIC2250's internal 34V/2A rated switch, allowing it to power large loads in a tiny footprint.

The MIC2250-1 is available in a 5-pin Thin SOT-23 package with dithering disabled. While the MIC2250-2 is available in a 5-pin Thin SOT-23 package with dithering enabled.

Additional Features
    • Over 80% efficient for a 300:1 load range
    • 2.5V to 5.5V input voltage range
    • Output voltage adjustable to 32V
    • 52µA (typ) quiescent current
    • Constant peak current control reduces output ripple
    • EMI reduction circuitry
    • Stable with small ceramic capacitors
    • <1µA shutdown current
    • UVLO and thermal shutdown
    • 5-pin Thin SOT-23 package (MIC2250-1 and -2)
    • -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)
5.5
Output Voltage Range Min (V)
3
Output Voltage Range Max (V)
32
Output Current (mA) max
2000
Quiescent Current (mA) typ
0.052
Operating Temp Range
-40 to 125
Vfb (V)
1.24
Duty Cycle Max (%)
87
SHUTDOWN Current (µA) (Typ)
0.1
Switch current (A) typ
2

Documents

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Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
MIC2250YML Evaluation Board
MIC2250YML Evaluation Board ( MIC2250YML-EV )

The MIC2250, a high efficiency, low EMI boost regulator is optimized for noise sensitive hand held battery powered applications. The proprietary control method allows low ripple across the output voltage and current ranges. Additionally, the MIC2250’s DITH function introduces a pseudo-random dithering of the switching frequency to reduce EMI levels by up to 10dB. The MIC2250 operates from an input...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC2250-1YD5-TR
0.012600
0.149200
5
TSOT
-
NiPdAu
e4
MIC2250-2YD5-TR
0.012600
0.149200
5
TSOT
-
NiPdAu
e4
MIC2250YML-TR
0.010900
0.339227
8
VDFN
2x2x0.9mm
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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