LP2954AIS/NOPB

更新时间： 2024-11-23 13:09:27

品牌	Logo	应用领域
德州仪器 - TI		稳压器
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LP2954AIS/NOPB 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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LP2954AIS/NOPB 替代型号

型号	品牌	替代类型	描述	数据表
LP2954IS/NOPB	TI	完全替代	250mA、30V、低压降稳压器 \| KTT \| 3 \| -40 to 125
LP2954IS	TI	完全替代	LP2954/LP2954A 5V and Adjustable Micropower Low-Dropout Voltage Regulators
LP2954AIS	TI	完全替代	LP2954/LP2954A 5V and Adjustable Micropower Low-Dropout Voltage Regulators

与LP2954AIS/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LP2954AISX	NSC	获取价格	5V and Adjustable Micropower Low-Dropout Voltage Regulators
LP2954AISX	TI	获取价格	LP2954/LP2954A 5V and Adjustable Micropower Low-Dropout Voltage Regulators
LP2954AISX/NOPB	NSC	获取价格	IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 0.8 V DROPOUT, PSSO3, TO-263, 3 PIN, Fixed Posit
LP2954AISX/NOPB	TI	获取价格	5-V and Adjustable Micropower LDOs
LP2954AIT	NSC	获取价格	5V and Adjustable Micropower Low-Dropout Voltage Regulators
LP2954AIT	TI	获取价格	LP2954/LP2954A 5V and Adjustable Micropower Low-Dropout Voltage Regulators
LP2954AIT/NOPB	NSC	获取价格	IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 0.8 V DROPOUT, PSFM3, PLASTIC, TO-220, 3 PIN, Fi
LP2954AIT/NOPB	TI	获取价格	5-V and Adjustable Micropower LDOs
LP2954IM	TI	获取价格	LP2954/LP2954A 5V and Adjustable Micropower Low-Dropout Voltage Regulators
LP2954IM	NSC	获取价格	5V and Adjustable Micropower Low-Dropout Voltage Regulators

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