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

MIC28303

50V/3A Power Module w/Hyper Light Load™, Hyper Speed Control™

Status: In Production

Features:

  • Stable with low-ESR ceramic output capacitor
  • No compensation and no inductor to choose
  • 4.5V to 50V input voltage
  • Single-supply operation
  • Power Good (PG) output
  • Low radiated emission (EMI) per EN55022, Class B
  • Adjustable current limit
  • Adjustable output voltage from 0.9V to 24V (also limited by duty cycle)
  • 200kHz to 600kHz, programmable switching frequency
  • Supports safe start-up into a pre-biased output
  • -40°C to +125°C junction temperature range
  • Available in 64-pin, 12mm x 12mm x 3mm QFN package
View More
Overview
Documents
Development Environment
RoHS Information
Add To Cart

Device Overview

Summary

MIC28303 is synchronous step-down regulator module, featuring a unique adaptive ON-time control architecture. The module incorporates a DC/DC controller, power MOSFETs, bootstrap diode, bootstrap capacitor and an inductor in a single package. The MIC28303 operates over an input supply range from 4.5V to 50V and can be used to supply up to 3A of output current. The output voltage is adjustable down to 0.8V with a guaranteed accuracy of ±1%. The device operates with programmable switching frequency from 200kHz to 600kHz. The MIC28303-1 uses HyperLight Load® architecture for improved efficiency at light loads. The MIC28303-2 uses Hyper Speed Control™ for ultra-fast transient response. The MIC28303 offers a full suite of protection features. These include undervoltage lockout, internal soft-start, foldback current limit, 'hiccup' mode short-circuit protection, and thermal shutdown.

Additional Features
    • Easy to use
      • Stable with low-ESR ceramic output capacitor
      • No compensation and no inductor to choose
    • 4.5V to 50V input voltage
    • Single-supply operation
    • Power Good (PG) output
    • Low radiated emission (EMI) per EN55022, Class B
    • Adjustable current limit
    • Adjustable output voltage from 0.9V to 24V (also limited by duty cycle)
    • 200kHz to 600kHz, programmable switching frequency
    • Supports safe start-up into a pre-biased output
    • -40°C to +125°C junction temperature range
    • Available in 64-pin, 12mm x 12mm x 3mm QFN package
Parametrics
Name
Value
Input Voltage Range (V)
4.5 to 50
Output Voltage (V)
Adj
Operating JunctionTemp. Range (°C)
-40 to +125
Control Scheme
COT
Vout Max (V)
24
Output Current (A)
3
HyperLight Load®
Yes
PWRGood
Yes
SoftStart
Yes

Documents

Jump to:

Data Sheets


Development tools data is currently unavailable.

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC28303-2YMP-T1
6.828789
64
B1QFN
12x12x3mm
Matte Tin
e3
MIC28303-1YMP-T1
6.828789
64
B1QFN
12x12x3mm
Matte Tin
e3
MIC28303-2YMP-TR
6.828789
64
B1QFN
12x12x3mm
Matte Tin
e3
MIC28303-1YMP-TR
6.828789
64
B1QFN
12x12x3mm
Matte Tin
e3
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