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MIC38300

3A Ultra Low Noise Power Module (HELDO®)

Status: In Production

Features:

  • 3A peak output current
  • 2.2A continuous operating current
  • Input voltage range: 3.0V to 5.5V
  • Adjustable output voltage down to 1.0V
  • Output noise less than 5mV
  • Ultra fast transient performance
  • Unique switcher plus LDO architecture
  • Fully integrated MOSFET switches
  • Micro-power shutdown
  • Easy upgrade from LDO as power dissipation becomes an issue
  • Thermal shutdown and current limit protection
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC38300 is a 3A peak, 2.2A continuous output current step down converter. This is the first device in a new generation of High Efficiency Low Dropout (HELDO®) regulators that provide the benefits of an LDO in respect to ease of use, fast transient performance, high PSRR and low noise while offering the efficiency of a switching regulator.

As output voltages move lower, the output noise and transient response of a switching regulator become an increasing challenge for designers. By combining a switcher whose output is slaved to the input of a high performance LDO, high efficiency is achieved with a clean low noise output. The MIC38300 is designed to provide less than 5mV of peak to peak noise and over 70dB of PSRR at 1kHz. Furthermore, the architecture of the MIC38300 is optimized for fast load transients allowing to maintain less than 30mV of output voltage deviation even during ultra fast load steps, making the MIC38300 an ideal choice for low voltage ASICs and other digital ICs.

The MIC38300 features a fully integrated switching regulator and LDO combo, operates with input voltages from 3.0V to 5.5V input and offers adjustable output voltages down to 1.0V.

Additional Features
    • 3A peak output current
    • 2.2A continuous operating current
    • Input voltage range: 3.0V to 5.5V
    • Adjustable output voltage down to 1.0V
    • Output noise less than 5mV
    • Ultra fast transient performance
    • Unique switcher plus LDO architecture
    • Fully integrated MOSFET switches
    • Micro-power shutdown
    • Easy upgrade from LDO as power dissipation becomes an issue
    • Thermal shutdown and current limit protection

     

Parametrics
Name
Value
Regulator Type
Step Down (Buck)
# of Outputs
1
Input Voltage Range Min (V)
3
Input Voltage Range Max (V)
5.5
Output Voltage Range Min (V)
1
Output Voltage Range Max (V)
3.3
Output Current (mA) max
3000
Quiescent Current (mA) typ
1
Switching Frequency (kHz)
1000-2500
Synchronous Rectifier
Yes
Operating Temp Range
-40 to 125
Vfb (V)
1
SHUTDOWN Current (µA) (Typ)
30
Light Load Efficiency Mode
Yes
Switch current (A) typ
3
Alternative Topology
HYS

Documents

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Development Environment

  • Demo & Evaluation Boards
  • Application Examples
Demo & Evaluation Boards
MIC38300 HELDO Evaluation Board
MIC38300 HELDO Evaluation Board ( ADM00822 )

The MIC38300 is a 3A peak, 2.2A continuous output current step down converter. This is the first device in a new generation of High Efficiency Low Dropout (HELDO®) regulators that provide the benefits of an LDO in respect to ease of use, fast transient performance, high PSRR and low noise while offering the efficiency of a switching regulator.

As output voltages move lower, the...

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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
MIC38300HYHL-TR
0.053200
0.123851
28
VQFN
4x6x0.9mm
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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