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MIC22400

4MHz 4A Synchronous Buck Regulator w/Programmable Freq. & Power Good

Status: In Production

Features:

  • Input voltage range: 2.6V to 5.5V
  • Output voltage adjustable down to 0.7V
  • Output current up to 4A
  • Full sequencing and tracking ability
  • Power-On-Reset (POR)
  • Efficiency > 90% across a broad load range
  • Programmable frequency 300kHz to 4MHz
  • Easy Ramp Control™ (RC) compensation
  • Ultra-fast transient response
  • 100% maximum duty cycle
  • Fully-integrated MOSFET switches
  • Micropower shutdown
  • Thermal-shutdown and current limit protection®
  • 20-pin ePad TSSOP
  • -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 MIC22400 is a high-efficiency, 4A integrated switch synchronous buck (step-down) regulator. The MIC22400 is optimized for highest efficiency, achieving over 90% efficiency while still switching at 1MHz over a broad load range. The ultra-high-speed control loop keeps the output voltage within regulation even under extreme transient load swings commonly found in FPGAs and low-voltage ASICs. The output voltage can be adjusted down to 0.7V to address all low-voltage power needs. The MIC22400 gives a full range of sequencing and tracking options. The EN/DLY pin combined with the Power-On-Reset (POR) pin allows multiple outputs to be sequenced in any way on turn-on and turn-off. The Ramp Control™ (RC) pin allows the device to be connected to another MIC22400 family of products to keep the output voltages within a certain ∆V on start-up.

The MIC22400 is thermally-enhanced 20-pin ePad TSSOP with a junction operating range from -40°C to +125°C.

Additional Features
    • Input voltage range: 2.6V to 5.5V
    • Output voltage adjustable down to 0.7V
    • Output current up to 4A
    • Full sequencing and tracking ability
    • Power-On-Reset (POR)
    • Efficiency > 90% across a broad load range
    • Programmable frequency 300kHz to 4MHz
    • Easy Ramp Control™ (RC) compensation
    • Ultra-fast transient response
    • 100% maximum duty cycle
    • Fully-integrated MOSFET switches
    • Micropower shutdown
    • Thermal-shutdown and current limit protection®
    • 20-pin ePad TSSOP
    • -40°C to +125°C junction temperature range
Parametrics
Name
Value
Regulator Type
Step Down (Buck)
# of Outputs
1
Input Voltage Range Min (V)
2.6
Input Voltage Range Max (V)
5.5
Output Voltage Range Min (V)
0.7
Output Voltage Range Max (V)
5.5
Output Current (mA) max
4000
Quiescent Current (mA) typ
1.3
Synchronous Rectifier
Yes
Operating Temp Range
-40 to 125
Vfb (V)
0.7
Duty Cycle Max (%)
1
SHUTDOWN Current (µA) (Typ)
5

Documents

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Development Environment

  • Demo & Evaluation Boards
  • Application Examples
Demo & Evaluation Boards
MIC22400YML Evaluation Board
MIC22400YML Evaluation Board ( MIC22400YML-EV )

This board enables the evaluation of the MIC22400; a high-power density, frequency-adjustable synchronous buck regulator. The MIC22400 features, integrated 4A MOSFETs, integrated frequency compensation, flexible sequencing and tracking abilities. The board is optimized for ease of testing, so all major components are on a single side. The voltage mode feedback loop is designed to allow high...

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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
MIC22400YTSE
0.205135
20
TSSOP
4.4mm
Matte Tin
e3
MIC22400YTSE-TR
0.280676
20
TSSOP
4.4mm
Matte Tin
e3
MIC22400YML-TR
0.031400
0.664302
20
VQFN
4x3x0.9mm
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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