参数资料
型号: MCP1640B-I/MC
厂商: Microchip Technology
文件页数: 19/32页
文件大小: 0K
描述: IC REG BOOST SYNC ADJ 0.1A 8DFN
特色产品: MCP1640 Boost Regulator
标准包装: 150
类型: 升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 2 V ~ 5.5 V
输入电压: 0.8 V ~ 5.5 V
频率 - 开关: 500kHz
电流 - 输出: 100mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-VFDFN 裸露焊盘
包装: 管件
供应商设备封装: 8-DFN(3x2)
MCP1640/B/C/D
6.0
TYPICAL APPLICATION CIRCUITS
L 1
4.7 μ H
MANGANESE LITHIUM
DIOXIDE BUTTON CELL
SW V OUT
V OUT
5.0V @ 5 mA
2.0V TO 3.2V
+
-
C IN
4.7 μ F
V IN
EN
V FB
976 K ?
C OUT
10 μ F
309 K ?
FROM PIC MCU I/O
?
GND
Note:
FIGURE 6-1:
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 out-
put 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 to control its bias voltage. While
operating in Sleep mode, the MCP1640C input quiescent current is typically less than 1 uA.
Manganese Lithium Coin Cell Application Using Bypass Mode.
L 1
10 μ H
V OUT
V IN
3.3V To 4.2V
SW V
OUTS
5.0V @ 350 mA
+
C IN
10 μ F
V IN
EN
V OUTP
V FB
976 K ?
C OUT
10 μ F
309 K ?
-
P GND S GND
FIGURE 6-2:
USB On-The-Go Powered by Li-Ion.
? 2011 Microchip Technology Inc.
DS22234B-page 19
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