Datasheet > LP2975AIMMX-5.0

LP2975AIMMX-5.0

更新时间： 2024-11-27 02:58:39

品牌	Logo	应用领域
德州仪器 - TI		光电二极管
页数	文件大小	规格书
36页	2890K
描述
MOSFET LDO Driver/Controller

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LP2975AIMMX-5.0 数据手册

LP2975

www.ti.com

SNVS006F –SEPTEMBER 1997–REVISED APRIL 2013

MOSFET LDO Driver/Controller

Check for Samples: LP2975

FEATURES

DESCRIPTION

A high-current LDO regulator is simple to design with

the LP2975 LDO Controller. Using an external P-FET,

the LP2975 will deliver an ultra low dropout regulator

with extremely low quiescent current.

•

Simple to Use, Few External Components

Ultra-small VSSOP-8 Package

1.5% (A Grade) Precision Output Voltage

Low-power Shutdown Input

High open loop gain assures excellent regulation and

ripple rejection performance.

< 1 µA in Shutdown

Low Operating Current (180 µA Typical @ V_IN

5V)

The trimmed internal bandgap reference provides

precise output voltage over the entire operating

temperature range.

•

Wide Supply Voltage Range (1.8V to 24V)

Built-in Current Limit Amplifier

Dropout voltage is “user selectable” by sizing the

external FET: the minimum input-output voltage

required for operation is the maximum load current

multiplied by the R_DS(ON) of the FET.

Overtemperature Protection

5.0V, and 3.3V Standard Output Voltages

Can be Programmed Using External Divider

Overcurrent protection of the external FET is easily

implemented by placing a sense resistor in series

with V_IN. The 57 mV detection threshold of the current

sense circuitry minimizes dropout voltage and power

dissipation in the resistor.

−40°C to +125°C Junction Temperature Range

APPLICATIONS

•

High-current 5V to 3.3V Regulator

Post Regulator for Switching Converter

Current-limited Switch

The standard product versions available provide

output voltages of 5.0V, or 3.3V with specified 25°C

accuracy of 1.5% (“A” grade) and 2.5% (standard

grade).

Block Diagram

*R_SETvalues are: 208k for 12V part, 72.8k for 5V part, and 39.9k for 3.3V part.

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...36

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LP2975AIMMX-5.0 替代型号

型号	品牌	替代类型	描述	数据表
LP2975AIMM-5.0	TI	完全替代	MOSFET LDO Driver/Controller
LP2975IMMX-5.0/NOPB	TI	类似代替	MOSFET LDO Driver/Controller 8-VSSOP -40 to 125

与LP2975AIMMX-5.0相关器件

型号	品牌	获取价格	描述	数据表
LP2975IMM-12	NSC	获取价格	MOSFET LDO Driver/Controller
LP2975IMM-3.3	NSC	获取价格	MOSFET LDO Driver/Controller
LP2975IMM-3.3/NOPB	TI	获取价格	MOSFET LDO Driver/Controller 8-VSSOP -40 to 125
LP2975IMM-5.0	NSC	获取价格	MOSFET LDO Driver/Controller
LP2975IMM-5.0	TI	获取价格	SPECIALTY ANALOG CIRCUIT, PDSO8, MINI, SOP-8
LP2975IMM-5.0/NOPB	TI	获取价格	暂无描述
LP2975IMMX-12	NSC	获取价格	MOSFET LDO Driver/Controller
LP2975IMMX-3.3	NSC	获取价格	MOSFET LDO Driver/Controller
LP2975IMMX-3.3/NOPB	TI	获取价格	SPECIALTY ANALOG CIRCUIT, PDSO8, MINI, SOP-8
LP2975IMMX-5.0	NSC	获取价格	MOSFET LDO Driver/Controller

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