TC115331ECTTR

更新时间： 2024-11-23 13:14:23

品牌	Logo	应用领域
美国微芯 - MICROCHIP		转换器
页数	文件大小	规格书
14页	342K
描述
暂无描述

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

TC115331ECTTR 数据手册

TC115

• High Efficiency at Low Output Load Currents via

PFM Mode

• Assured Start-up at 0.9V

PFM/PWM Step-Up DC/DC Converter

Features

Package Type

SOT-89-5

• 80 µA (Typ) Supply Current

• 85% Typical Efficiency at 100 mA

• 140 mA Typical Output Current @ V = 2.0V

• Low Power Shutdown Mode

• No External Switching Transistor Needed

• Space-Saving SOT-89 Package

GND

TC115

SHDN

General Description

Applications

The TC115 is a high-efficiency step-up DC/DC

converter for small, low input voltage or battery-

powered systems. This device has a start-up voltage

of 0.9V and a typical supply current of 80 µA. Phase

compensation and soft-start circuitry are included on-

chip. Unlike conventional PWM step-up converters,

the TC115 automatically shifts to pulse frequency

modulation (PFM) at low loads, resulting in reduced

supply current and improved efficiency.

• Pagers

• Cellular Phones

• Palmtops

• 1-Cell to 3-Cell Battery Powered Systems

• Cameras, Video Recorders

• Local +3V to +5V Supplies

The TC115 requires only an external diode, an inductor

and a capacitor, while supporting typical output cur-

rents of 140 mA. Supply current is reduced to less than

0.5 µA (max) when SHDN input is brought low.

Small size, low installed cost and low supply current

make the TC115 step-up converter ideal for use in a

wide range of battery-powered systems.

Functional Block Diagram

L₁

100 µH

Sumida^®CD-54

D₁

+3V

OUT

C₁

10 µF

IN5817

1.5V

C₂

47 µF

Tantalum

GND

TC115

SHDN

1.5V to +3V, 50 mA Supply

 2003 Microchip Technology Inc.

DS21361C-page 1

12 3 4 5 6 7...14

中文翻译

下载PDF

与TC115331ECTTR相关器件

型号	品牌	获取价格	描述	数据表
TC115331EMT	MICROCHIP	获取价格	0.4 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PDSO6, SOT-89, 5 PIN
TC115331EMTRT	MICROCHIP	获取价格	0.4 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PDSO5, SOT-89, 5 PIN
TC115331EMTTR	MICROCHIP	获取价格	PFM/PWM Step-Up DC/DC Converter
TC115501ECT	MICROCHIP	获取价格	PFM/PWM Step-Up DC/DC Converter
TC115501ECTTR	MICROCHIP	获取价格	暂无描述
TC115501EMT	MICROCHIP	获取价格	0.4 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PDSO6, SOT-89, 5 PIN
TC115501EMTRT	MICROCHIP	获取价格	0.4 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PDSO5, SOT-89, 5 PIN
TC115501EMTTR	MICROCHIP	获取价格	PFM/PWM Step-Up DC/DC Converter
TC115A-F	PANASONIC	获取价格	Toggle Switch, SPST, Latched, 15A, 30VDC, Wire Terminal, Panel Mount-threaded, ROHS COMPLI
TC115A-ULF	PANASONIC	获取价格	Toggle Switch, SPST, Latched, 15A, 30VDC, Wire Terminal, Panel Mount-threaded, ROHS COMPLI