MCP1640-I/MC Microchip Technology, MCP1640-I/MC Datasheet - Page 11

• Manufacturer Part Number: MCP1640-I/MC
• Description: IC CONV DC-DC STEPUP SYNC 8DFN
• Manufacturer: Microchip Technology
• Type: Step-Up (Boost)r

Specifications of MCP1640-I/MC

• Package / Case: 8-DFN
• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 2 ~ 5.5 V
• Current - Output: 100mA
• Frequency - Switching: 500kHz
• Voltage - Input: 0.8 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Mounting Style: SMD/SMT
• Duty Cycle (max): 90 %
• Efficiency: 96 %
• Input / Supply Voltage (max): 0.8 V
• Input / Supply Voltage (min): 0.65 V
• Load Regulation: 0.01 %
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Output Current: 350 mA
• Output Voltage: 5 V
• Switching Frequency: 500 KHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

2.1
© 2010 Microchip Technology Inc.
INTRODUCTION
Chapter 2. Installation and Operation
2.1.1
The MCP1640 device has been developed to increase battery life. The MCP1640 is
capable of regulating the output voltage over a wide range (2.0V to 5.5V), and typically
delivers over 100 mA load current at 3.3V output, when supplied from a single 1.5V
cell.
The key features of the MCP1640 that help optimize the battery life include:
• Up to 96% efficiency
• PFM switching mode for light loads
• Low input start-up voltage, typically 0.65V at 1 mA load current
• Low shutdown voltage (continuously operating down to 0.35V input under light
• True Output Disconnect Shutdown option, preventing leakage current from input
• 19 µA typically quiescent current
For applications powered by alkaline cells that consume few milliamperes, the
MCP1640 device can operate to the minimum input voltage necessary to completely
drain the battery.
load condition)
to output (less than 1 µA is consumed from the battery in this mode)
MCP1640 Features
MCP1640 SINGLE QUADRUPLE-A
BATTERY BOOST CONVERTER
REFERENCE DESIGN
DS51922A-page 11