Datasheet > 电源电路 > 开关式稳压器或控制器> TC1240I/CHTR

TC1240I/CHTR

更新时间： 2024-09-16 22:41:15

品牌	Logo	应用领域
美国微芯 - MICROCHIP		泵
页数	文件大小	规格书
16页	283K
描述
Positive Doubling Charge Pumps with Shutdown in a SOT-23 Package

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

TC1240I/CHTR 数据手册

TC1240/TC1240A

Positive Doubling Charge Pumps with Shutdown

in a SOT-23 Package

Features

General Description

• Charge Pumps in 6-Pin SOT-23A Package

• >99% Typical Voltage Conversion Efficiency

• Voltage Doubling

The TC1240/TC1240A is a doubling CMOS charge

pump voltage converter in a small 6-Pin SOT-23A

package. The TC1240 doubles an input voltage that

can range from +2.5V to +4.0V, while the TC1240A

doubles an input voltage that can range from +2.5V to

+5.5V. Conversion efficiency is typically >99%. Internal

oscillator frequency is 160 kHz for both devices. The

TC1240 and TC1240A have an active-high shutdown

that limits the current consumption of the devices to

less than 1 µA.

External component requirement is only two capacitors

for standard voltage doubler applications. All other

circuitry (including control, oscillator and power

MOSFETs) are integrated on-chip. Typical supply cur-

rent is 180 µA for the TC1240 and 550 µA for the

TC1240A. Both devices are available in a 6-Pin SOT-

23A surface mount package.

• Input Voltage Range, TC1240: +2.5V to +4.0V,

TC1240A: +2.5V to +5.5V

• Low Output Resistance, TC1240: 17Ω (Typical)

TC1240A: 12Ω (Typical)

• Only Two External Capacitors Required

• Low Supply Current, TC1240: 180 µA (Typical)

TC1240A: 550 µA (Typical)

• Power-Saving Shutdown Mode (1 µA Maximum)

• Shutdown Input Fully Compatible with 1.8V Logic

Systems

Applications

• Cellular Phones

• Pagers

Typical Application Circuit

Positive Voltage Doubler

• PDAs, Portable Data Loggers

• Battery Powered Devices

• Handheld Instruments

INPUT

C+

TC1240

Package Type

6-Pin SOT-23A

TC1240A

C-

OFF

SHDN

C+

SHDN

OUT

2 x INPUT

GND

TC1240ECH

TC1240AECH

GND

C-

NOTE: 6-Pin SOT-23A is equivalent to the

EIAJ (SC-74A)

 2003 Microchip Technology Inc.

DS21516C-page 1

12 3 4 5 6 7...16

中文翻译

下载PDF

与TC1240I/CHTR相关器件

型号	品牌	获取价格	描述	数据表
TC1240ICHTR	MICROCHIP	获取价格	IC,DC/DC CONVERTER,+9V,CMOS,TSOP,6PIN
TC124ESA	SECOS	获取价格	NPN Digital Transistors (Built-in Resistors)
TC124-F-07470RL	YAGEO	获取价格	ARRAY CHIP RESISTORS
TC124-F-10470RL	YAGEO	获取价格	ARRAY CHIP RESISTORS
TC124-F-13470RL	YAGEO	获取价格	ARRAY CHIP RESISTORS
TC124-FR-07100KL	YAGEO	获取价格	Array/Network Resistor, Isolated, Metal Glaze/thick Film, 0.0625W, 100000ohm, 50V, 1% +/-T
TC124-FR-07100RL	YAGEO	获取价格	RES ARRAY 4 RES 100 OHM 0804
TC124-FR-07102KL	YAGEO	获取价格	排阻与网络排阻
TC124-FR-07102RL	YAGEO	获取价格	RES ARRAY 4 RES 102 OHM 0804
TC124-FR-07105KL	YAGEO	获取价格	排阻与网络排阻