MCP1640T-I/CHY Microchip Technology, MCP1640T-I/CHY Datasheet - Page 11
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MCP1640T-I/CHY
Manufacturer Part Number
MCP1640T-I/CHY
Description
IC CONV DCDC STEPUP SYNC SOT23-6
Manufacturer
Microchip Technology
Type
Step-Up (Boost)r
Specifications of MCP1640T-I/CHY
Package / Case
SOT-23-6
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
Other names
MCP1640T-I/CHYTR
Available stocks
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Part Number
Manufacturer
Quantity
Price
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