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MIC22950

2MHz 10A Synchronous Buck Regulator w/Progammable Frequency

Status: In Production

Features:

  • 2.6V to 5.5V supply voltage
  • Fully integrated MOSFET switches
  • Adjustable output voltage option down to 0.7V
  • Output load current up to 10A
  • Full sequencing and tracking capability
  • Power On Reset
  • Efficiency >95% across a broad load range
  • Operating frequency programmable: 400kHz to 2MHz
  • Ultra-fast transient response
  • 100% maximum duty cycle
  • Micropower shutdown
  • Thermal shutdown and current-limit protection
  • -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 MIC22950 is a high efficiency 10A integrated switch synchronous buck (step-down) regulator. The MIC22950 switching frequency is programmable from 400kHz to 2MHz, allowing the customer to optimize designing either for efficiency or for the smallest footprint. The MIC22950 achieves over 95% efficiency while still switching at 2MHz 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 in order to address all low voltage power needs.

The MIC22950 features a full range of sequencing and tracking options. The enable and the delay pins, combined with the power good pin, allow multiple outputs to be sequenced in several ways during turn on and turn off. The RC (Ramp Control™) pin allows the device to be connected to any another device in the MIC22x00 family of products, to keep the output voltages within a certain delta V during start up.

Additional Features
    • 2.6V to 5.5V supply voltage
    • Fully integrated MOSFET switches
    • Adjustable output voltage option down to 0.7V
    • Output load current up to 10A
    • Full sequencing and tracking capability
    • Power On Reset
    • Efficiency >95% across a broad load range
    • Operating frequency programmable: 400kHz to 2MHz
    • Ultra-fast transient response
    • 100% maximum duty cycle
    • Micropower shutdown
    • Thermal shutdown and current-limit protection
    • -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
10000
Quiescent Current (mA) typ
1
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
Demo & Evaluation Boards
MIC22950 10A Synch Buck Reg Eval Board
MIC22950 10A Synch Buck Reg Eval Board ( ADM00823 )

MIC22950 Evaluation Board was developed to evaluate the capabilities of the MIC22950 high-efficiency 10A integrated switch, synchronous buck (step-down) regulator. The MIC22950 achieves over 95% efficiency while still switching at 2MHz over a broad load range.

The MIC22950 Evaluation Board features turret connectors for input and output power and test points for measuring various...

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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
MIC22950YML-TR
0.064100
0.214000
32
VQFN
5x5x0.9mm
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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