TC126503ECTTR

更新时间： 2024-11-22 13:14:23

品牌	Logo	应用领域
美国微芯 - MICROCHIP		稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数	文件大小	规格书
12页	461K
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中文翻译

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TC126503ECTTR 数据手册

TC125/TC126

PFM Step-Up DC/DC Regulators

Features

General Description

• Assured Start-up at 0.9V

The TC125/126 step-up (Boost) switching regulators

furnish output currents to

a maximum of 80mA

• PFM (100kHz Max Operating Frequency)

• 40µA Maximum Supply Current

(V = 2V, V = 3V) with typical efficiencies above

OUT

80%. These devices employ pulse frequency modula-

tion (PFM) for minimum supply current at low loads.

They are ideal for battery-operated applications

powered from one or more cells. Maximum supply

current is less than 70µA at full output load, and less

= 3V @ 30mA)

OUT

• 0.5µA Shutdown Mode (TC125)

• Voltage Sense Input (TC126)

• Requires Only Three External Components

• 80mA Maximum Output Current

• Small Package: 5-Pin SOT-23A

than 5µA in standby (V

= 3V). Both devices require

OUT

only an external inductor, diode, and capacitor to

implement a complete DC/DC regulator.

Applications

The TC126 has separate output voltage sensing and

chip power inputs for greater application flexibility. The

TC125 combines the output voltage sensing and chip

power inputs onto a single package pin, but adds a

power-saving shutdown mode that suspends regulator

operation and reduces supply current to less than

0.5µA when the shutdown control input (SHDN) is low.

• Palmtops/PDAs

• Battery-Operated Systems

• Cameras

• Portable Communicators

Device Selection Table

The TC125/TC126 are available in a small 5-Pin

SOT-23A package, occupy minimum board space and

use small external components. The TC125 accepts

input voltages from 2V to 10V. The TC126 accepts

input voltages from 2.2V to 10V. Both the TC125 and

TC126 have a start-up voltage of 0.9V at light load.

Output

Voltage

(V)*

Operating

Temp.

Range

Part

Number

Package

TC125501ECT

TC125331ECT

TC125301ECT

TC126503ECT

TC126333ECT

TC126303ECT

5.0

3.3

3.0

5.0

3.3

3.0

5-Pin SOT-23A -40°C to +85°C

Typical Application

Sumida

100µH CD54

OUT

MA735

5V @80mA

47µF/16V

Tantalum

*Other output voltages are available. Please contact

Microchip Technology Inc. for details.

–

GND

2 x "AA"

Cell

TC125

Package Type

SHDN PS

5-Pin SOT-23A

GND

Two Cell to 5V Boost Regulator

TC126

TC125

SENSE

SHDN

NOTE: 5-Pin SOT-23A is equivalent to the EIAJ SC-74A

2002 Microchip Technology Inc.

DS21372B-page 1

12 3 4 5 6 7...12

中文翻译

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与TC126503ECTTR相关器件

型号	品牌	获取价格	描述	数据表
TC12651.8VAT	MICROCHIP	获取价格	1.8 V FIXED POSITIVE LDO REGULATOR, 1.4 V DROPOUT, PSFM5, TO-220, 5 PIN
TC1265-1.8VAT	MICROCHIP	获取价格	800 mA Fixed-Output CMOS LDO with Shutdown
TC1265-1.8VET	MICROCHIP	获取价格	800 mA Fixed-Output CMOS LDO with Shutdown
TC1265-1.8VETRT	MICROCHIP	获取价格	1.8 V FIXED POSITIVE LDO REGULATOR, 1.4 V DROPOUT, PSSO5, D2PAK-5
TC1265-1.8VETTR	MICROCHIP	获取价格	800 mA Fixed-Output CMOS LDO with Shutdown
TC12651.8VOA	MICROCHIP	获取价格	1.8 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PDSO8, SOIC-8
TC1265-1.8VOA	MICROCHIP	获取价格	800 mA Fixed-Output CMOS LDO with Shutdown
TC1265-1.8VOART	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 1.8V, 1V Dropout, CMOS, PDSO8, SOIC-8
TC1265-1.8VOATR	MICROCHIP	获取价格	800 mA Fixed-Output CMOS LDO with Shutdown
TC1265-2.5VAT	MICROCHIP	获取价格	800 mA Fixed-Output CMOS LDO with Shutdown

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