TC1121

更新时间： 2024-11-21 22:39:47

品牌	Logo	应用领域
美国微芯 - MICROCHIP		转换器泵
页数	文件大小	规格书
14页	444K
描述
100mA Charge Pump Voltage Converter with Shutdown

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中文翻译

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TC1121 数据手册

TC1121

100mA Charge Pump Voltage Converter with Shutdown

Features

Package Type

• Optional High-Frequency Operation Allows Use of

Small Capacitors

8-Pin PDIP

• Low Operating Current (FC = GND)

- 50µA

• High Output Current (100mA)

CAP⁺

GND

OSC

TC1121CPA

TC1121EPA

• Converts a 2.4V to 5.5V Input Voltage to a

Corresponding Negative Output Voltage

(Inverter Mode)

SHDN

CAP^–

OUT

• Uses Only 2 Capacitors; No Inductors Required

• Selectable Oscillator Frequency

- 10kHz to 200kHz

8-Pin SOIC

8-Pin MSOP

• Power-Saving Shutdown Input

• Available in 8-Pin MSOP, 8-Pin PDIP and 8-Pin

Small Outline (SOIC) Packages

CAP⁺

GND

TC1121COA

TC1121EOA

TC1121CUA

TC1121EUA

OSC

Applications

SHDN

• Laptop Computers

• Medical Instruments

• Disk Drives

CAP^–

OUT

• µP-Based Controllers

• Process Instrumentation

General Description

The TC1121 is a charge pump converter with 100mA

output current capability. It converts a 2.4V to 5.5V

input to a corresponding negative output voltage. As

with all charge pump converters, the TC1121 uses no

inductors saving cost, size and EMI.

Device Selection Table

Operating

Part

Package

Temp.

Range

Number

An on-board oscillator operates at a typical frequency

of 10kHz (at V⁺= 5V) when the frequency control input

(FC) is connected to ground. The oscillator frequency

increases to 200kHz when FC is connected to V⁺,

allowing the use of smaller capacitors. Operation at

sub-10kHz frequencies results in lower quiescent

NScurrent and is accomplished with the addition of an

external capacitor from OSC (pin 7) to ground. The

TC1121 also can be driven from an external clock

NSconnected OSC. Typical supply current at 10kHz is

50µA, and falls to less than 1µA when the shutdown

input is brought low, whether the internal or an external

clock is used. The TC1121 is available in 8-pin SOIC,

MSOP and PDIP packages.

TC1121COA

TC1121CPA

TC1121CUA

TC1121EOA

TC1121EPA

TC1121EUA

8-Pin SOIC

8-Pin PDIP

8-Pin MSOP

8-Pin SOIC

8-Pin PDIP

8-Pin MSOP

0°C to +70°C

-40°C to +85°C

 2002 Microchip Technology Inc.

DS21358B-page 1

12 3 4 5 6 7...14

中文翻译

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与TC1121相关器件

型号	品牌	获取价格	描述	数据表
TC1121_06	MICROCHIP	获取价格	100mA Charge Pump Voltage Converter with Shutdown
TC1121COA	MICROCHIP	获取价格	100mA Charge Pump Voltage Converter with Shutdown
TC1121COA713	MICROCHIP	获取价格	SWITCHED CAPACITOR CONVERTER, 200 kHz SWITCHING FREQ-MAX, PDSO8, SOIC-8
TC1121COA723	MICROCHIP	获取价格	SWITCHED CAPACITOR CONVERTER, 200 kHz SWITCHING FREQ-MAX, PDSO8, SOIC-8
TC1121COATR	MICROCHIP	获取价格	暂无描述
TC1121CPA	MICROCHIP	获取价格	100mA Charge Pump Voltage Converter with Shutdown
TC1121CUA	MICROCHIP	获取价格	100mA Charge Pump Voltage Converter with Shutdown
TC1121CUA713	MICROCHIP	获取价格	SWITCHED CAPACITOR CONVERTER, 200 kHz SWITCHING FREQ-MAX, PDSO8, MSOP-8
TC1121CUA713G	MICROCHIP	获取价格	SWITCHED CAPACITOR CONVERTER, 200 kHz SWITCHING FREQ-MAX, PDSO8, MSOP-8
TC1121CUAG	MICROCHIP	获取价格	SWITCHED CAPACITOR CONVERTER, 200 kHz SWITCHING FREQ-MAX, PDSO8, MSOP-8

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