LP2954

更新时间： 2024-11-23 12:09:51

品牌	Logo	应用领域
德州仪器 - TI		稳压器
页数	文件大小	规格书
24页	2046K
描述
LP2954/LP2954A 5V and Adjustable Micropower Low-Dropout Voltage Regulators

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LP2954 数据手册

LP2954, LP2954A

www.ti.com

SNVS096D –JUNE 1999–REVISED MARCH 2013

LP2954/LP2954A 5V and Adjustable Micropower Low-Dropout Voltage Regulators

Check for Samples: LP2954, LP2954A

FEATURES

DESCRIPTION

The LP2954 is a 5V micropower voltage regulator

with very low quiescent current (90 μA typical at 1 mA

load) and very low dropout voltage (typically 60 mV at

light loads and 470 mV at 250 mA load current).

•

5V Output within 1.2% Over Temperature

(A Grade)

•

Adjustable 1.23 to 29V Output Voltage

Available (LP2954IM and LP2954AIM)

The quiescent current increases only slightly at

dropout (120 μA typical), which prolongs battery life.

•

Ensured 250 mA Output Current

Extremely Low Quiescent Current

Low Dropout Voltage

The LP2954 with a fixed 5V output is available in the

three-lead TO-220 and DDPAK/TO-263 packages.

The adjustable LP2954 is provided in an 8-lead

surface mount, small outline package. The adjustable

version also provides a resistor network which can be

pin strapped to set the output to 5V.

Reverse Battery Protection

Extremely Tight Line and Load Regulation

Very Low Temperature Coefficient

Current and Thermal Limiting

Reverse battery protection is provided.

Pin Compatible with LM2940 and LM340

(5V Version Only)

The tight line and load regulation (0.04% typical), as

well as very low output temperature coefficient make

the LP2954 well suited for use as a low-power

voltage reference.

•

Adjustable Version Adds Error Flag to Warn of

Output Drop and a Logic-Controlled Shutdown

Output accuracy is ensured at both room temperature

and over the entire operating temperature range.

APPLICATIONS

•

High-Efficiency Linear Regulator

Low Dropout Battery-Powered Regulator

Package Outline and Ordering Information

Figure 1. TO-220 3–Lead Plastic Package (Front

View)

Figure 2. SO-8 Small Outline Surface Mount (Top

View)

Figure 3. TO-263 3-Lead Plastic Surface-Mount

Package (Top View)

Figure 4. TO-263 3-Lead Plastic Surface-Mount

Package (Side View)

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

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...24

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与LP2954相关器件

型号	品牌	获取价格	描述	数据表
LP2954A	TI	获取价格	LP2954/LP2954A 5V and Adjustable Micropower Low-Dropout Voltage Regulators
LP2954A	NSC	获取价格	5V and Adjustable Micropower Low-Dropout Voltage Regulators
LP2954AIM	NSC	获取价格	5V and Adjustable Micropower Low-Dropout Voltage Regulators
LP2954AIM	TI	获取价格	LP2954/LP2954A 5V and Adjustable Micropower Low-Dropout Voltage Regulators
LP2954AIM/NOPB	NSC	获取价格	IC VREG 4.93 V-5.07 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.8 V DROPOUT, PDSO8, ROHS COMPLI
LP2954AIM/NOPB	TI	获取价格	250-mA, 30-V, low-dropout voltage regulator with high-accuracy 8-SOIC -40 to 125
LP2954AIMX	TI	获取价格	LP2954/LP2954A 5V and Adjustable Micropower Low-Dropout Voltage Regulators
LP2954AIMX/NOPB	TI	获取价格	250mA、30V、高精度、低压降稳压器 \| D \| 8 \| -40 to 125
LP2954AIS	NSC	获取价格	5V and Adjustable Micropower Low-Dropout Voltage Regulators
LP2954AIS	TI	获取价格	LP2954/LP2954A 5V and Adjustable Micropower Low-Dropout Voltage Regulators

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