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MIC23450

Triple 3MHz 2A HyperLight Load® Synchronous Buck Regulator w/Power Good

Status: In Production

Features:

  • Input voltage: 2.7V to 5.5V
  • Three independent 2A outputs
  • Up to 93% peak efficiency
  • 81% typical efficiency at 1mA
  • Three independent Power Good Indicators
  • 23µA typical quiescent current (per channel)
  • 3MHz PWM operation in continuous mode
  • Ultra-fast transient response
  • 30mVpp ripple in HyperLight Load® mode
  • 5mV output voltage ripple in full PWM mode
  • Fully integrated MOSFET switches
  • 0.01µA shutdown current (per channel)
  • Thermal-shutdown and current-limit protection
  • Output voltage as low as 1V
  • 32-pin 5mm x 5mm QFN
  • -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 MIC23450 is a high-efficiency, 3MHz, triple 2A, synchronous buck regulator with HyperLight Load® mode. HyperLight Load® provides very-high efficiency at light loads and ultra-fast transient response which is perfectly suited for supplying processor core voltages. An additional benefit of this proprietary architecture is very low output ripple voltage throughout the entire load range with the use of small output capacitors. The 5mm x 5mm QFN package saves board space and requires only five external components for each channel.

The MIC23450 is designed for use with a very small inductor, down to 0.47µH, and an output capacitor as small as 2.2µF that enables a total solution size, less than 1mm height.

The MIC23450 has a very-low quiescent current of 23µA each channel and achieves as high as 81% efficiency at 1mA. At higher loads, the MIC23450 provides a constant switching frequency around 3MHz while achieving peak efficiencies up to 93%.

Additional Features
    • Input voltage: 2.7V to 5.5V
    • Three independent 2A outputs
    • Up to 93% peak efficiency
    • 81% typical efficiency at 1mA
    • Three independent Power Good Indicators
    • 23µA typical quiescent current (per channel)
    • 3MHz PWM operation in continuous mode
    • Ultra-fast transient response
    • Low voltage output ripple
      • 30mVpp ripple in HyperLight Load® mode
      • 5mV output voltage ripple in full PWM mode
    • Fully integrated MOSFET switches
    • 0.01µA shutdown current (per channel)
    • Thermal-shutdown and current-limit protection
    • Output voltage as low as 1V
    • 32-pin 5mm x 5mm QFN
    • -40°C to +125°C junction temperature range
Parametrics
Name
Value
Vout Max (V)
3.3V
Type
PMIC
VIN Max (V)
5.5
VIN Min (V)
2.7

Documents

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Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
MIC23450-AAAYML Evaluation Board
MIC23450-AAAYML Evaluation Board ( MIC23450-AAAYML-EV )

This board allows the customer to evaluate the MIC23450, a fully-integrated, triple-output, 2A, 3MHz switching regulator that features HyperLight Load® mode and power good (PG) output indicators. The MIC23450 is highly efficient throughout the output current range, drawing just 23μA of quiescent current for each channel in operation. The tiny 5mm x 5mm MLF® package saves board space and requires...

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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
MIC23450-AAAYML-T5
0.064100
0.214000
32
VQFN
5x5x0.9mm
NiPdAu
e4
MIC23450-AAAYML-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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