Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

MIC23303

4MHz 3A HyperLight Load® Synchronous Buck Regulator w/Soft-Start and Power Good

Status: In Production

Features:

  • Input voltage: 2.7V to 5.5V
  • Output voltage: down to 0.65V
  • Up to 3A output current
  • Up to 93% peak efficiency
  • 80% typical efficiency at 1mA
  • Power Good output
  • Programmable soft-start
  • 24µA typical quiescent current
  • 4MHz PWM operation in continuous mode
  • Ultra fast transient response
  • Low ripple output voltage
  • 35mVpp ripple in HyperLight Load® mode
  • 5mV output voltage ripple in full PWM mode
  • Fully integrated MOSFET switches
  • 0.01µA shutdown current
  • Thermal-shutdown and current-limit protection
  • 12-pin 3mm x 3mm DFN
  • -40°C to +125°C junction temperature range
View More
Overview
Documents
Development Environment
RoHS Information
Buy Now

Device Overview

Summary

The MIC23303 is a high efficiency 4MHz 3A synchronous buck regulator with HyperLight Load® mode, Power Good output indicator, and programmable soft-start. HyperLight Load® provides very high efficiency at light loads and ultra-fast transient response which makes the MIC23303 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 tiny 3mm x 3mm DFN package saves precious board space and requires only six external components.

The MIC23303 is designed for use with a very small inductor, down to 0.33µH, and an output capacitor as small as 10µF that enables a total solution size, less than 1mm in height.

The MIC23303 has a very low quiescent current of 24µA and can achieve a peak efficiency of 93% in continuous conduction mode. In discontinuous conduction mode, the MIC23303 can achieve 80% efficiency at 1mA.

The MIC23303 is available in 12-pin 3mm x 3mm DFN package with an operating junction temperature range from -40°C to +125°C.

Additional Features
    • Input voltage: 2.7V to 5.5V
    • Output voltage: down to 0.65V
    • Up to 3A output current
    • Up to 93% peak efficiency
    • 80% typical efficiency at 1mA
    • Power Good output
    • Programmable soft-start
    • 24µA typical quiescent current
    • 4MHz PWM operation in continuous mode
    • Ultra fast transient response
    • Low ripple output voltage
      • 35mVpp ripple in HyperLight Load® mode
      • 5mV output voltage ripple in full PWM mode
    • Fully integrated MOSFET switches
    • 0.01µA shutdown current
    • Thermal-shutdown and current-limit protection
    • 12-pin 3mm x 3mm DFN
    • -40°C to +125°C junction temperature range
Parametrics
Name
Value
Regulator Type
Step Down (Buck)
# of Outputs
1
Input Voltage Range Min (V)
2.9
Input Voltage Range Max (V)
5.5
Output Voltage Range Min (V)
0.62
Output Voltage Range Max (V)
3.6
Output Current (mA) max
3000
Quiescent Current (mA) typ
0.023
Switching Frequency (kHz)
4000
Synchronous Rectifier
Yes
Operating Temp Range
-40 to 125
Vfb (V)
0.62
Duty Cycle Max (%)
80
Light Load Efficiency Mode
Yes

Documents

Jump to:

Applications Source code

09/14/2017
362KB

Development Environment

  • Demo & Evaluation Boards
  • Application Examples
Demo & Evaluation Boards
MIC23303YML Evaluation Board
MIC23303YML Evaluation Board ( MIC23303YML-EV )

This board allows the customer to evaluate the MIC23303, a fully integrated 3A, 4MHz switching regulator that features Hyper Light Load® mode, a Power Good output indicator, and programmable soft-start. The MIC23303 is highly efficient throughout the output current range, drawing just 24μA of quiescent current in operation. The MIC23303 provides accurate output voltage regulation under the most...

Learn More
Add To Cart

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC23303YML-TR
0.023840
0.644302
12
VDFN
3x3x0.9mm
NiPdAu
e4
MIC23303YML-T5
0.023840
0.644302
12
VDFN
3x3x0.9mm
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.

Buy from the Microchip Store

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy