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MCP1612

1.4MHz 1A Synchronous Buck Regulator

Status: In Production

Features:

  • 1.4MHz fixed switching frequency
  • Integrated buck and synchronous switches
  • 1 Amp continuous output current capability
  • Input voltage range of 2.7V to 5.5V
  • Adjustable output voltage range of 0.8V to 5.0V
  • Precise reference feedback voltage of +/- 2.5%
  • 100% duty cycle capability for low input voltages
  • Fast dynamic response to line and load steps
  • Shutdown control with typical IQ<0.01uA
  • Overvoltage, overcurrent, and thermal protection
  • Under voltage lock out (UVLO)
  • Integrated soft start
  • Space saving 8 pin MSOP and DFN packages
  • Extended operating temperature range (-40C to +85C)
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

Microchip’s MCP1612 DC-to-DC converter offers the customer a compact and inexpensive method of efficiently converting battery and bus voltages to the lower voltages required by various circuits within their systems. This device is available in space efficient MSOP and DFN packages, and in the case of the DFN, thermally enhanced. Because the power FET and synchronous FET are integrated, minimal external components are required. Likewise, due to the high switching frequency, the requisite external inductor and capacitor can be minimized. Since the output voltage is adjustable with an external resistor divider, only the base device need be stocked to provide the customer with a multitude of output voltage variations.

Additional Features
    • 1.4MHz fixed switching frequency
    • Integrated buck and synchronous switches
    • 1 Amp continuous output current capability
    • Input voltage range of 2.7V to 5.5V
    • Adjustable output voltage range of 0.8V to 5.0V
    • Precise reference feedback voltage of +/- 2.5%
    • 100% duty cycle capability for low input voltages
    • Fast dynamic response to line and load steps
    • Shutdown control with typical IQ<0.01uA
    • Overvoltage, overcurrent, and thermal protection
    • Under voltage lock out (UVLO)
    • Integrated soft start
    • Space saving 8 pin MSOP and DFN packages
    • Extended operating temperature range (-40C to +85C)
Parametrics
Name
Value
Regulator Type
Step Down (Buck)
# of Outputs
1
Input Voltage Range Min (V)
2.7
Input Voltage Range Max (V)
5.5
Output Voltage Range Min (V)
0.8
Output Voltage Range Max (V)
5
Output Current (mA) max
1000
Quiescent Current (mA) typ
5
Switching Frequency (kHz)
1400
Synchronous Rectifier
Yes
Operating Temp Range
-40 to 85
Vfb (V)
0.8
Duty Cycle Max (%)
100
SHUTDOWN Current (µA) (Typ)
0.01

Documents

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Data Sheet

02/05/2013
314KB

Product Line Card

Development Environment

  • Demo & Evaluation Boards
  • Application Examples
Demo & Evaluation Boards
MCP1612 Evaluation Board
MCP1612 Evaluation Board ( MCP1612EV )

The MCP1612 Synchronous Buck Regulator Evaluation Board features Microchip Technology’s 1A 1.4MHz synchronous buck regulator in two buck converter applications. The first application uses the MCP1612 in the 8-leaded MSOP package. This converter has four (0.8V, 1.0V, 1.2V, and 1.4V) selectable output voltages available. The second application features the MCP1612 in the 8-leaded DFN package....

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8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board
8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board ( SOIC8EV )

This is a blank PCB that allows the operation of Microchip Technology’s 8-pin devices to be easily evaluated. Each device pin is connected to a pull-up resistor, a pull-down resistor, an in-line resistor, and a loading capacitor. The PCB pads allow through hole or surface mount connectors to be installed to ease connection to the board. Additional passive component footprints are on 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
MCP1612-ADJI/MS
0.025600
0.070000
8
MSOP
3x3mm
Matte Tin
e3
MCP1612T-ADJI/MS
0.025600
0.215600
8
MSOP
3x3mm
Matte Tin
e3
MCP1612-ADJI/MF
0.023800
0.041667
8
DFN
3x3x0.9mm
Matte Tin
e3
MCP1612T-ADJI/MF
0.023800
0.172727
8
DFN
3x3x0.9mm
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.

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