Datasheet > TC126331ECTRT

TC126331ECTRT

更新时间： 2024-10-01 08:08:23

品牌	Logo	应用领域
美国微芯 - MICROCHIP		开关光电二极管
页数	文件大小	规格书
10页	84K
描述
0.4 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PDSO5, EIAJ, SC-74A, SOT-23A, 5 PIN

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TC126331ECTRT 数据手册

TC125

TC126

PFM Step-Up DC/DC Regulators

GENERAL DESCRIPTION

FEATURES

■ Space-Saving 5-Pin SOT-23A Package

■ Guaranteed 0.9V Start-Up

■ PFM (100 KHz Max Operating Frequency)

■ 40 µA Maximum Supply Current (V_OUT= 3V @ 30 mA)

■ 0.5 µA Shutdown Mode (TC125)

■ Voltage Sense Input (TC126)

■ Requires Only Three External Components

■ 80 mA Maximum Output Current

The TC125/6 step-up (Boost) switching regulators fur-

nish output currents to a maximum of 80 mA (V_IN= 2V,

V_OUT= 3V) with typical efficiencies above 80%. These

devices employ pulse frequency modulation (PFM) for mini-

mum supply current at low loads. They are ideal for battery-

operated applications powered from one or more cells.

Maximum supply current is less than 70 µA at full output

load, and less than 5 µA in standby (V_OUT= 3V). Both

devicesrequireonlyanexternalinductor,diode,andcapaci-

tor to implement a complete DC/DC regulator.

The TC126 has separate output voltage sensing and

chip power inputs for greater application flexibility. The

TC125combinestheoutputvoltagesensingandchippower

inputs onto a single package pin, but adds a power-saving

shutdown mode that suspends regulator operation and

reduces supply current to less than 0.5 µA when the

shutdown control input (SHDN) is low.

TYPICAL APPLICATIONS

■ Palmtops/PDAs

■ Battery-Powered Systems

■ Cameras

■ Portable Communicators

ORDERING INFORMATION

Housed in tiny 5-Pin SOT-23A packages, the

TC125/6 occupy minimum board space, and use tiny

external components. The TC125 accepts input voltages

from 2.0V to 10.0V. The TC126 accepts input voltages from

2.2V to 10V. Both the TC125 and TC126 have a guaranteed

start-up voltage of 0.9V at light load.

Part #

Output

Package

Temp.

Range

Voltage

TC125301ECT

TC125331ECT

TC125501ECT

TC126301ECT

TC126331ECT

TC126501ECT

3.0V

3.3V

5.0V

3.0V

3.3V

5.0V

5-Pin SOT-23A –40°C to 85°C

PIN CONFIGURATIONS

GND

NOTE: Other output voltages are available. Output voltage Range:

2.0V to 7.0V in 0.1V increments. Please contact Microchip

Technology Inc. for details.

TC126

TC125

SHDN

SENSE

TYPICAL APPLICATION

SUMIDA

100µH CD54

MA735

5.0V @ 80mA

47 µF/16V

TANTALUM

GND

2 x "AA"

CELL

TC125

SHDN

Two Cell to 5V Boost Regulator

TC125/6-1 8/3/99

12 3 4 5 6 7...10

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与TC126331ECTRT相关器件

型号	品牌	获取价格	描述	数据表
TC126331TR	MICROCHIP	获取价格	Switching Regulator, Voltage-mode, 0.4A, 115kHz Switching Freq-Max, PDSO5, SOT-23, 5 PIN
TC126333ECT	MICROCHIP	获取价格	PFM Step-Up DC/DC Regulators
TC1263-5.0VAT	MICROCHIP	获取价格	500 mA, Fixed-Output, CMOS LDO with Shutdown
TC1263-5.0VET	MICROCHIP	获取价格	500 mA, Fixed-Output, CMOS LDO with Shutdown
TC1263-5.0VETTR	MICROCHIP	获取价格	500 mA, Fixed-Output, CMOS LDO with Shutdown
TC1263-5.0VOA	MICROCHIP	获取价格	500 mA, Fixed-Output, CMOS LDO with Shutdown
TC1263-5.0VOA723	MICROCHIP	获取价格	5 V FIXED POSITIVE LDO REGULATOR, 0.8 V DROPOUT, PDSO8, SOIC-8
TC1263-5.0VOATR	MICROCHIP	获取价格	500 mA, Fixed-Output, CMOS LDO with Shutdown
TC1264	MICROCHIP	获取价格	800mA Fixed Output CMOS LDO
TC1264_06	MICROCHIP	获取价格	800 mA Fixed-Output CMOS LDO with Shutdown

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