Datasheet > LP8340

LP8340

更新时间： 2024-11-16 02:58:23

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LP8340 Low Dropout, Low IQ, 1.0A CMOS Linear Regulator Check for Samples: LP8340

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LP8340 数据手册

LP8340

www.ti.com

SNVS221D –FEBRUARY 2003–REVISED APRIL 2013

LP8340 Low Dropout, Low I_Q, 1.0A CMOS Linear Regulator

Check for Samples: LP8340

FEATURES

DESCRIPTION

The LP8340 low-dropout CMOS linear regulator is

available in 5V, 3.3V, 2.5V, 1.8V and adjustable

output versions. Packaged in the 6ld WSON package

and 3ld PFM. The LP8340 can deliver up to 1.0A

output current.

•

±1.5% Typical V_OUTTolerance

420mV Typical Dropout @ 1.0A (V_O= 5V)

Wide Operating Range 2.7V to 10V

Internal 1.0A PMOS Output Transistor

19µA Typical Quiescent Current

Thermal Overload Limiting

Typical dropout voltage is 420mV at 1.0A for the 5.0V

version, 540mV at 1.0A for the 3.3V version, 670mV

at 1.0A for the 2.5V version and 680mV at 800mA for

the 1.8V version.

Foldback Current Limiting

Zener Trimmed Bandgap Reference

Space Saving WSON package

Temperature Range

The LP8340 includes a zener trimmed bandgap

voltage reference, foldback current limiting and

thermal overload limiting.

–

LP8340C 0°C to 125°C

The LP8340 features a PMOS output transistor which

unlike PNP type low dropout regulators requires no

base drive current. This allows the device ground

current to remain less than 50µA over operating

temperature, supply voltage and irrespective of the

load current.

LP8340I −40°C to 125°C

APPLICATIONS

•

Hard Disk Drives

Notebook Computers

Battery Powered Electronics

Portable Instrumentation

Typical Applications

OUT

1.0µF

Ceramic

1.0µF

Ceramic

Sense

OUT

(LLP only)

GND

Figure 1. Fixed V_OUT

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...18

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LP8340 替代型号

型号	品牌	替代类型	描述	数据表
LP38692	TI	功能相似	具有使能功能的 1A、10V、低压降稳压器
LP38502-ADJ	TI	功能相似	具有使能功能的 1.5A、可调节超低压降稳压器
LP38690	TI	功能相似	1A、10V 低压降稳压器

与LP8340相关器件

型号	品牌	获取价格	描述	数据表
LP8340C	NSC	获取价格	Low Dropout, Low IQ, 1.0A CMOS Linear Regulator
LP8340CDT-1.8	NSC	获取价格	Low Dropout, Low IQ, 1.0A CMOS Linear Regulator
LP8340CDT-1.8/NOPB	TI	获取价格	1.8V FIXED POSITIVE LDO REGULATOR, 1.4V DROPOUT, PSSO2, DPAK-3
LP8340CDT-2.5	NSC	获取价格	Low Dropout, Low IQ, 1.0A CMOS Linear Regulator
LP8340CDT-2.5/NOPB	TI	获取价格	2.5V FIXED POSITIVE LDO REGULATOR, 1.3V DROPOUT, PSSO2, DPAK-3
LP8340CDT-3.3	NSC	获取价格	Low Dropout, Low IQ, 1.0A CMOS Linear Regulator
LP8340CDT-3.3/NOPB	TI	获取价格	3.3V FIXED POSITIVE LDO REGULATOR, 1V DROPOUT, PSSO2, DPAK-3
LP8340CDT-3.3/NOPB	ROCHESTER	获取价格	3.3V FIXED POSITIVE LDO REGULATOR, 1V DROPOUT, PSSO2, DPAK-3/2
LP8340CDT-5.0	NSC	获取价格	Low Dropout, Low IQ, 1.0A CMOS Linear Regulator
LP8340CDT-5.0/NOPB	NSC	获取价格	5V FIXED POSITIVE LDO REGULATOR, 0.8V DROPOUT, PSSO2, DPAK-3

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