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MIC24056

29V/12A Hyper Light Load™ DC-DC Buck Regulator

Status: In Production

Features:

  • HyperLight Load® efficiency - up to 80% at 10mA
  • Hyper Speed Control™ architecture enables
  • High delta V operation (VIN = 19V and VOUT = 0.8V)
  • Small output capacitance
  • Input voltage range: 4.5V to 19V
  • Output current up to 12A
  • Up to 95% efficiency
  • Adjustable output voltage from 0.8V to 5.5V
  • ±1% feedback accuracy
  • Any Capacitor™ stable - zero-to-high ESR
  • 600kHz switching frequency
  • Power Good (PG) output
  • Foldback current-limit and "hiccup" mode short-circuit protection
  • Safe start-up into pre-biased loads
  • -40°C to +125°C junction temperature range
  • Available in 28-pin 5mm — 6mm QFN package
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC24056 is a constant-frequency, synchronous DC/DC buck regulator featuring adaptive on-time control architecture. The MIC24056 operates over a supply range of 4.5V to 19V. It has an internal linear regulator which provides a regulated 5V to power the internal control circuitry. MIC24056 operates at a constant 600kHz switching frequency in continuous-conduction mode and can be used to provide up to 12A of output current. The output voltage is adjustable down to 0.8V.

HyperLight Load® architecture provides the same high efficiency and ultra-fast transient response as the Hyper Speed Control™ architecture under medium to heavy loads, but also maintains high efficiency under light load conditions by transitioning to variable frequency, discontinuous mode operation.

The MIC24056 offers a full suite of protection features to ensure protection of the IC during fault conditions. These include undervoltage lockout to ensure proper operation under power-sag conditions, thermal shutdown, internal soft start to reduce the inrush current, foldback current-limit and "hiccup" mode short-circuit protection. The MIC24056 includes a power good (PG) output to allow simple sequencing. The 12A Hyper Speed Control™ part, MIC24055, is also available.

Additional Features
    • HyperLight Load® efficiency - up to 80% at 10mA
    • Hyper Speed Control™ architecture enables
      • High delta V operation (VIN = 19V and VOUT = 0.8V)
      • Small output capacitance
    • Input voltage range: 4.5V to 19V
    • Output current up to 12A
    • Up to 95% efficiency
    • Adjustable output voltage from 0.8V to 5.5V
    • ±1% feedback accuracy
    • Any Capacitor™ stable - zero-to-high ESR
    • 600kHz switching frequency
    • Power Good (PG) output
    • Foldback current-limit and "hiccup" mode short-circuit protection
    • Safe start-up into pre-biased loads
    • -40°C to +125°C junction temperature range
    • Available in 28-pin 5mm — 6mm QFN package
Parametrics
Name
Value
Regulator Type
Step Down (Buck)
# of Outputs
1
Input Voltage Range Min (V)
4.5
Input Voltage Range Max (V)
19
Output Voltage Range Min (V)
0.8
Output Voltage Range Max (V)
5.5
Output Current (mA) max
12000
Quiescent Current (mA) typ
0.45
Switching Frequency (kHz)
600
Synchronous Rectifier
Yes
Operating Temp Range
-40 to 125
Vfb (V)
0.8
Duty Cycle Max (%)
0.82
SHUTDOWN Current (µA) (Typ)
5
Light Load Efficiency Mode
Yes

Documents

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Software Library

Development Environment

  • Demo & Evaluation Boards
  • Software Libraries
Demo & Evaluation Boards
MIC24056YJL Evaluation Board
MIC24056YJL Evaluation Board ( MIC24056YJL-EV )

The MIC24056 DC/DC synchronous buck regulator operates over an input supply range of 4.5V to 19V and provides a regulated output at up to 12A of load current. The output voltage is adjustable down to 0.8V with a typical accuracy of ±1%. The basic parameters of the MIC24056 evaluation board are a VIN supply of 5V to 19V, output voltage of 0.8V to 5V at 12A(1), and 600kHz switching frequency.

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Software Libraries
Analog Simulation - MIC24056

MIC24056 is a constant-frequency, synchronous DC/DC buck regulator featuring adaptive on-time control architecture. The MIC24056 operates over a supply range of 4.5V to 19V. It has an internal linear...

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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
MIC24056YJL-TR
0.081600
0.227180
28
VQFN
5x6x0.9mm
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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