Microchip Technology Inc
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MCP1640

500kHz 800mA Isw Synchronous PFM/PWM Boost Regulator

Status: In Production

Features:

  • Up to 96% Typical Efficiency
  • IOUT > 100 mA @ 1.2V VIN, 3.3V VOUT
  • IOUT > 350 mA @ 2.4V VIN, 3.3V VOUT
  • IOUT > 350 mA @ 3.3V VIN, 5.0V VOUT
  • Low Start-up Voltage: 0.65V
  • Operating Input Voltage: 0.35V
  • Adjustable Output Voltage Range: 2.0V to 5.5V
  • Maximum Input Voltage < VOUT < 5.5V
  • Automatic PFM/PWM Operation
  • PWM Operation at 500 kHz
  • Low Device Quiescent Current: 19 µA – typical PFM Mode
  • Shutdown Current (All States): < 1 µA
  • Internal Synchronous Rectifier
  • Internal Compensation
  • Inrush Current Limiting and Internal Soft-Start
  • True Load Disconnect Shutdown
  • Low Noise, Anti-Ringing Control
  • Over-temperature Protection
  • SOT23-6 or 2x3 8-Lead DFN packages
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MCP1640/40B/40C/40D is a compact, high-efficiency, fixed frequency, synchronous step-up DC-DC converter. It provides an easy-to-use power supply solution for applications powered by either one-cell, two-cell, or three-cell alkaline, NiCd, NiMH, one-cell Li-Ion or Li-Polymer batteries. The MCP1640/40B/40C/40D provides very high efficiency through integration of the low resistance N-Channel Boost switch and synchronous P-Channel switch.

Additional Features
    • Up to 96% Typical Efficiency
    • 800 mA Typical Peak Input Current Limit:
      • IOUT > 100 mA @ 1.2V VIN, 3.3V VOUT
      • IOUT > 350 mA @ 2.4V VIN, 3.3V VOUT
      • IOUT > 350 mA @ 3.3V VIN, 5.0V VOUT
    • Low Start-up Voltage: 0.65V
    • Operating Input Voltage: 0.35V
    • Adjustable Output Voltage Range: 2.0V to 5.5V
    • Maximum Input Voltage < VOUT < 5.5V
    • Automatic PFM/PWM Operation
    • PWM Operation at 500 kHz
    • Low Device Quiescent Current: 19 µA – typical PFM Mode
    • Shutdown Current (All States): < 1 µA
    • Internal Synchronous Rectifier
    • Internal Compensation
    • Inrush Current Limiting and Internal Soft-Start
    • True Load Disconnect Shutdown
    • Low Noise, Anti-Ringing Control
    • Over-temperature Protection
    • SOT23-6 or 2x3 8-Lead DFN packages
Parametrics
Name
Value
Regulator Type
Step Up (Boost)
Input Voltage Range Min (V)
0.65
Input Voltage Range Max (V)
5.5
Output Voltage Range Min (V)
2
Output Voltage Range Max (V)
5.5
Output Current (mA) max
1000
Quiescent Current (mA) typ
0.019
Switching Frequency (kHz)
500
Synchronous Rectifier
Yes
Operating Temp Range
-40 to 85
Vfb (V)
1.21
Duty Cycle Max (%)
90
SHUTDOWN Current (µA) (Typ)
0.7
Light Load Efficiency Mode
Yes
Switch current (A) typ
0.8

Documents

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Data Sheets

09/28/2015
738KB

Software Library

Product Selection Tools

Sell Sheets

Development Environment

  • Demo & Evaluation Boards
  • Software Libraries
Demo & Evaluation Boards
MCP16251 & MCP1640B Sync Boost Converters Eval Board
MCP16251 & MCP1640B Sync Boost Converters Eval Board ( ADM00458 )

The MCP16251 and MCP1640B Synchronous Boost Converters Evaluation Board is used to evaluate and demonstrate Microchip Technology’s MCP16251 and MCP1640B products. This board demonstrates the MCP16251/MCP1640B in two boost-converter applications with multiple output voltages. It can be used to evaluate both package options (SOT-23-6 and 2x3 mm 8-(T)DFN). The MCP16251 and MCP1640B...

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MCP1640 12V/50mA Two Cells Input Boost Converter
MCP1640 12V/50mA Two Cells Input Boost Converter ( ARD00386 )

The MCP1640 12V/50 mA Two Cells Input Boost Converter Reference Design is designed to demonstrate the MCP1640 device’s high-voltage boost capability above its typical output range of 5.5V. This board boosts the low-voltage input to 12V and up to 70 mA load. By changing specific resistors, a lower/higher output than 12V can be obtained. The MCP1640 Input Boost Converter was developed to help...

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MCP1640 Synchronous Boost Converter Evaluation Board
MCP1640 Synchronous Boost Converter Evaluation Board ( MCP1640EV-SBC )

This evaluation board uses the MCP1640 in a high-efficiency (up to 96%), fixed frequency (500 kHz), step-up DC-DC converter. It demonstrates:

  • Easy-to-use and minimum number of external components power supply solution for applications powered by one-cell, two-cell, or three-cell alkaline, NiCd/NiMH; one-cell Li-Ion or Li-Polymer batteries
  • Selection of
...

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MCP1640 Single Quad-A Battery Boost Converter Ref Des
MCP1640 Single Quad-A Battery Boost Converter Ref Des ( MCP1640RD-4ABC )

The MCP1640 Single Quadruple-A Battery Boost Converter Reference Design demonstrates how the MCP1640 device, with the True Output Disconnect Shutdown option, works attached to a microcontroller application. This board demonstrates how to optimize battery life using the MCP1640, and an 8-bit low cost PIC microcontroller, to reduce the No Load Input Current for applications that operate in Standby...

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Software Libraries
Analog Simulation - MCP1640

The MCP1640/40B/40C/40D is a compact, high-efficiency, fixed frequency, synchronous step-up DC-DC converter. It provides an easy-to-use power supply solution for applications powered by either...

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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
MCP1640T-I/CH
0.017000
0.046667
6
SOT-23
-
Matte Tin
e3
MCP1640DT-I/CH
0.017000
0.046667
6
SOT-23
-
Matte Tin
e3
MCP1640CT-I/CH
0.017000
0.046667
6
SOT-23
-
Matte Tin
e3
MCP1640BT-I/CH
0.017000
0.046667
6
SOT-23
-
Matte Tin
e3
MCP1640T-I/CHYRB2
0.016450
0.046667
6
SOT-23
-
NiPdAu
e4
MCP1640DT-I/CHYRB2
0.016450
0.046667
6
SOT-23
-
NiPdAu
e4
MCP1640T-I/CHY
0.016450
0.046667
6
SOT-23
-
NiPdAu
e4
MCP1640DT-I/CHY
0.016450
0.046667
6
SOT-23
-
NiPdAu
e4
MCP1640BT-I/CHY
0.016450
0.046667
6
SOT-23
-
NiPdAu
e4
MCP1640CT-I/CHY
0.016450
0.046667
6
SOT-23
-
NiPdAu
e4
MCP1640T-I/MC
0.015600
0.130606
8
DFN
2x3x0.9mm
Matte Tin
e3
MCP1640-I/MC
0.015600
0.033333
8
DFN
2x3x0.9mm
Matte Tin
e3
MCP1640B-I/MC
0.015600
0.033333
8
DFN
2x3x0.9mm
Matte Tin
e3
MCP1640BT-I/MC
0.015600
0.130606
8
DFN
2x3x0.9mm
Matte Tin
e3
MCP1640C-I/MC
0.015600
0.033333
8
DFN
2x3x0.9mm
Matte Tin
e3
MCP1640CT-I/MC
0.015600
0.130606
8
DFN
2x3x0.9mm
Matte Tin
e3
MCP1640D-I/MC
0.015600
0.033333
8
DFN
2x3x0.9mm
Matte Tin
e3
MCP1640DT-I/MC
0.015600
0.130606
8
DFN
2x3x0.9mm
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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