LM2661MWC

更新时间： 2024-09-30 13:09:23

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LM2661MWC 数据手册

LM2660

www.ti.com

SNVS135D –SEPTEMBER 1999–REVISED MAY 2013

LM2660 Switched Capacitor Voltage Converter

Check for Samples: LM2660

FEATURES

DESCRIPTION

The LM2660 CMOS charge-pump voltage converter

is a versatile unregulated switched capacitor inverter

or doubler. Operating from a wide 1.5V to 5.5V

supply voltage, the LM2660 uses two low-cost

capacitors to provide 100 mA of output current

without the cost, size and EMI related to inductor-

based converters. With an operating current of only

120 µA and operating efficiency greater than 90% at

most loads, the LM2660 provides ideal performance

for battery-powered systems. LM2660 devices can be

operated directly in parallel to lower output

impedance, thus providing more current at a given

voltage.

•

Inverts or Doubles Input Supply Voltage

Narrow SO-8 and Mini SO-8 Package

6.5Ω Typical Output Resistance

88% Typical Conversion Efficiency at 100 mA

Selectable Oscillator Frequency: 10 kHz/80

kHz

•

Optional External Oscillator Input

APPLICATIONS

•

Laptop Computers

Cellular Phones

The FC (frequency control) pin selects between a

nominal 10 kHz or 80 kHz oscillator frequency. The

oscillator frequency can be lowered by adding an

external capacitor to the OSC pin. Also, the OSC pin

may be used to drive the LM2660 with an external

clock up to 150 kHz. Through these methods, output

ripple frequency and harmonics may be controlled.

Medical Instruments

Operational Amplifier Power Supplies

Interface Power Supplies

Handheld Instruments

Additionally, the LM2660 may be configured to divide

a positive input voltage precisely in half. In this mode,

input voltages as high as 11V may be used.

Basic Application Circuits

Voltage Inverter

Positive Voltage Doubler

Splitting V_INin Half

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...20

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与LM2661MWC相关器件

型号	品牌	获取价格	描述	数据表
LM2661MX	ETC	获取价格	DC-to-DC Voltage Converter
LM2661MX/NOPB	ROCHESTER	获取价格	SWITCHED CAPACITOR CONVERTER, 80kHz SWITCHING FREQ-MAX, PDSO8, SOIC-8
LM2661MX_NOPB	TI	获取价格	LM2660 Switched Capacitor Voltage Converter
LM2662	TI	获取价格	LM2662/LM2663 Switched Capacitor Voltage Converter
LM2662	NSC	获取价格	Switched Capacitor Voltage Converter
LM2662M	NSC	获取价格	Switched Capacitor Voltage Converter
LM2662M	TI	获取价格	LM2662/LM2663 Switched Capacitor Voltage Converter
LM2662M/NOPB	TI	获取价格	200mA switched capacitor voltage converter 8-SOIC -40 to 85
LM2662MDC	TI	获取价格	SWITCHED CAPACITOR CONVERTER, 150kHz SWITCHING FREQ-MAX, UUC8, DIE
LM2662MDC	NSC	获取价格	IC SWITCHED CAPACITOR CONVERTER, 150 kHz SWITCHING FREQ-MAX, UUC8, DIE, Switching Regulato

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