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MIC38150

1.5A Ultra Low Noise Power Module (HELDO®)

Status: In Production

Features:

  • Output current up to 1.5A
  • 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 MIC38150 is a 1.5A continuous output current step down converter. This is a follow on product in the new High Efficiency Low DropOut Regulators (HELDO®) family, that provide the benefits of an LDO with 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 MIC38150 is designed to provide less than 5mV of peak-to-peak noise and over 70dB of PSRR at 1kHz. Furthermore, the architecture of the MIC38150 is optimized for fast load transients allowing the output to maintain less than 30mV of output voltage deviation even during ultra fast load steps. This makes the MIC38150 an ideal choice for low voltage ASICs and other digital ICs.

The MIC38150 features a fully integrated switching regulator and LDO combination, operates with input voltages from 3.0V to 5.5V input and offers adjustable output voltages down to 1.0V.

Additional Features
    • Output current up to 1.5A
    • 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
1500
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
1.5
Alternative Topology
HYS

Documents

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Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
MIC38150HYHL Evaluation Board
MIC38150HYHL Evaluation Board ( MIC38150HYHL-EV )

The MIC38150 evaluation board is used to demonstrate the features of the MIC38150, a 1.5A step down converter and the second device in a new generation of HELDO (High Efficiency Low Dropout) regulators providing the benefits of LDOs. They are easy to use, feature fast transient performance, high PSRR and low noise while offering the efficiency of a switching regulator.

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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
MIC38150HYHL-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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