Datasheet > MCP1640T-ICHY

MCP1640T-ICHY

更新时间： 2024-11-17 00:45:23

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
32页	474K
描述
0.65V Start-up Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass Option

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MCP1640T-ICHY 数据手册

MCP1640/B/C/D

0.65V Start-up Synchronous Boost Regulator with True

Output Disconnect or Input/Output Bypass Option

Features

General Description

• Up to 96% Typical Efficiency

The MCP1640/B/C/D is a compact, high-efficiency,

fixed frequency, synchronous step-up DC-DC con-

verter. 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.

• 800 mA Typical Peak Input Current Limit:

- I_OUT> 100 mA @ 1.2V V_IN, 3.3V V_OUT

- I_OUT> 350 mA @ 2.4V V_IN, 3.3V V_OUT

- I_OUT> 350 mA @ 3.3V V_IN,5.0V V_OUT

• Low Start-up Voltage: 0.65V, typical 3.3V V_OUT

@ 1 mA

Low-voltage technology allows the regulator to start up

without high inrush current or output voltage overshoot

from a low 0.65V input. High efficiency is accomplished

by integrating the low resistance N-Channel Boost

switch and synchronous P-Channel switch. All

compensation and protection circuitry are integrated to

minimize external components. For standby

applications, the MCP1640 operates and consumes

only 19 µA while operating at no load and provides a

true disconnect from input to output while shut down

(EN = GND). Additional device options are available

that operate in PWM only mode and connect input to

output bypass while shut down.

• Low Operating Input Voltage: 0.35V, typical

3.3V_OUT@ 1 mA

• Adjustable Output Voltage Range: 2.0V to 5.5V

• Maximum Input Voltage  V_OUT< 5.5V

• Automatic PFM/PWM Operation (MCP1640/C):

- PFM Operation Disabled (MCP1640B/D)

- PWM Operation: 500 kHz

• Low Device Quiescent Current: 19 µA, typical

PFM Mode

• Internal Synchronous Rectifier

• Internal Compensation

A “true” load disconnect mode provides input to output

isolation while disabled by removing the normal boost

regulator diode path from input to output. A bypass

mode option connects the input to the output using the

integrated low resistance P-Channel MOSFET, which

provides a low bias keep alive voltage for circuits

operating in Deep Sleep mode. Both options consume

less than 1 µA of input current.

• Inrush Current Limiting and Internal Soft-Start

• Selectable, Logic Controlled, Shutdown States:

- True Load Disconnect Option (MCP1640/B)

- Input to Output Bypass Option (MCP1640C/D)

• Shutdown Current (All States): < 1 µA

• Low Noise, Anti-Ringing Control

• Overtemperature Protection

Output voltage is set by a small external resistor

divider. Two package options, SOT23-6 and 2x3

DFN-8, are available.

• Available Packages:

- SOT23-6

- 2x3 8-Lead DFN

Package Types

Applications

MCP1640

6-Lead SOT23

2x3 DFN*

• One, Two and Three Cell Alkaline and NiMH/NiCd

Portable Products

V_IN

GND

• Single Cell Li-Ion to 5V Converters

• Li Coin Cell Powered Devices

• Personal Medical Products

• Wireless Sensors

GND

OUTS

OUTP

V_OUT

V_FB

GND

• Handheld Instruments

• GPS Receivers

* Includes Exposed Thermal Pad (EP); see Table 3-1.

• Bluetooth Headsets

• +3.3V to +5.0V Distributed Power Supply

 2010 Microchip Technology Inc.

DS22234A-page 1

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中文翻译

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与MCP1640T-ICHY相关器件

型号	品牌	获取价格	描述	数据表
MCP1640T-IMC	MICROCHIP	获取价格	0.65V START-UP SYNCHRONOUS BOOST REGULATOR WITH TRUE OUTPUT DISCONNECT OR INPUT/OUTPUT BYP
MCP16411	MICROCHIP	获取价格	The MCP16411 is a Boost regulator from the MCP1641X family of low quiescentcurrent boost c
MCP16411-I/MN	MICROCHIP	获取价格	Low IQ Boost Converter with Programmable Low Battery, UVLO and Automatic Input-to-Output B
MCP16411-I/UN	MICROCHIP	获取价格	Low IQ Boost Converter with Programmable Low Battery, UVLO and Automatic Input-to-Output B
MCP16411T-I/MN	MICROCHIP	获取价格	Low IQ Boost Converter with Programmable Low Battery, UVLO and Automatic Input-to-Output B
MCP16411T-I/UN	MICROCHIP	获取价格	Low IQ Boost Converter with Programmable Low Battery, UVLO and Automatic Input-to-Output B
MCP16412	MICROCHIP	获取价格	The MCP16411 is a Boost regulator from the MCP1641X family of low quiescentcurrent boost c
MCP16412-I/MN	MICROCHIP	获取价格	Low IQ Boost Converter with Programmable Low Battery, UVLO and Automatic Input-to-Output B
MCP16412-I/UN	MICROCHIP	获取价格	Low IQ Boost Converter with Programmable Low Battery, UVLO and Automatic Input-to-Output B
MCP16412T-I/MN	MICROCHIP	获取价格	Low IQ Boost Converter with Programmable Low Battery, UVLO and Automatic Input-to-Output B

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