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MIC4782

Dual 1.8MHz 2A Buck Regulator

Status: In Production

Features:

  • 3.0V to 6.0V supply voltage
  • 1.8MHz PWM mode
  • 2A dual output
  • Greater than 92% efficiency
  • 100% maximum duty cycle
  • Adjustable output voltage option down to 0.6V
  • Ultra-fast transient response
  • Ultra-small external components
  • Stable with a 1µH inductor and a 4.7µF output capacitor
  • Fully integrated 2A MOSFET switches
  • Micro-power shutdown
  • Thermal shutdown and current limit protection
  • -20°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 MIC4782 is a high efficiency dual PWM buck (step-down) regulator that provides dual 2A output current. The MIC4782 operates at 1.8MHz. A proprietary internal compensation technique allows a closed loop bandwidth of over 200kHz.

The low on-resistance internal P-Channel MOSFET of the MIC4782 allows efficiencies over 92%, reduces external components count and eliminates the need for an expensive current sense resistor.

The MIC4782 operates from 3.0V to 6.0V input and the output can be adjusted down to 0.6V. The device can operate with a maximum duty cycle of 100% for use in low-dropout conditions.

Additional Features
    • 3.0V to 6.0V supply voltage
    • 1.8MHz PWM mode
    • 2A dual output
    • Greater than 92% efficiency
    • 100% maximum duty cycle
    • Adjustable output voltage option down to 0.6V
    • Ultra-fast transient response
    • Ultra-small external components
    • Stable with a 1µH inductor and a 4.7µF output capacitor
    • Fully integrated 2A MOSFET switches
    • Micro-power shutdown
    • Thermal shutdown and current limit protection
    • -20°C to +125°C junction temperature range
Parametrics
Name
Value
Regulator Type
Step Down (Buck)
# of Outputs
2
Input Voltage Range Min (V)
3
Input Voltage Range Max (V)
6
Output Voltage Range Min (V)
0.607
Output Voltage Range Max (V)
6
Output Current (mA) max
3000
Switching Frequency (kHz)
1800
Operating Temp Range
-40 to 125
Vfb (V)
0.607
Duty Cycle Max (%)
1
SHUTDOWN Current (µA) (Typ)
1.6

Documents

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Data Sheet

11/05/2015
660KB

Development tools data is currently unavailable.

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC4782YML-TR
0.021300
0.801700
16
VQFN
3x3x1.00mm
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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