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MCP1640T-ICHY Datasheet(PDF) 19 Page - Microchip Technology

Part No. MCP1640T-ICHY
Description  0.65V Start-Up Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass Option
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP1640T-ICHY Datasheet(HTML) 19 Page - Microchip Technology

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 2010-2015 Microchip Technology Inc.
DS20002234D-page 19
MCP1640/B/C/D
6.0
TYPICAL APPLICATION CIRCUITS
FIGURE 6-1:
Manganese Lithium Coin Cell Application Using Bypass Mode.
FIGURE 6-2:
USB On-The-Go Powered by Li-Ion.
VIN
GND
VFB
SW
VOUT
5.0V @ 5 mA
COUT
10 µF
CIN
4.7 µF
L1
4.7 µH
VOUT
976 k
309 k
EN
Manganese Lithium
Dioxide Button Cell
2.0V to 3.2V
+
-
From PIC® MCU I/O
Note:
For applications that can operate directly from the battery input voltage during Sleep mode and
require a higher voltage during Normal Run mode, the MCP1640C device provides Input to
Output Bypass when disabled. The PIC® microcontroller is powered by the output of the
MCP1640C. One of its I/O pins is used to enable and disable the MCP1640C. While operating
in Sleep mode, the MCP1640C input quiescent current is typically less than 1 µA.
VIN
PGND
VFB
SW
VIN
3.3V To 4.2V
VOUT
5.0V @ 350 mA
COUT
10 µF
CIN
10 µF
L1
10 µH
VOUTS
+
-
976 k
309 k
VOUTP
SGND
EN


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