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LP2951CSD-3.3

更新时间： 2024-11-10 12:09:51

品牌	Logo	应用领域
德州仪器 - TI		调节器
页数	文件大小	规格书
43页	1949K
描述
LP2950-N/LP2951-N Series of Adjustable Micropower Voltage Regulators

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LP2951CSD-3.3 数据手册

LP2950-N, LP2951-N

www.ti.com

SNVS764N –JANUARY 2000–REVISED MAY 2013

LP2950-N/LP2951-N Series of Adjustable Micropower Voltage Regulators

Check for Samples: LP2950-N, LP2951-N

FEATURES

DESCRIPTION

The LP2950-N and LP2951-N are micropower

•

5V, 3V, and 3.3V Versions Available

High Accuracy Output Voltage

Ensured 100 mA Output Current

Extremely Low Quiescent Current

Low Dropout Voltage

voltage regulators with very low quiescent current (75

μA typ.) and very low dropout voltage (typ. 40 mV at

light loads and 380 mV at 100 mA). They are ideally

suited for use in battery-powered systems.

Furthermore, the quiescent current of the LP2950-

N/LP2951-N increases only slightly in dropout,

prolonging battery life.

Extremely Tight Load and Line Regulation

Very Low Temperature Coefficient

Use as Regulator or Reference

Needs Minimum Capacitance for Stability

Current and Thermal Limiting

The LP2950-N-5.0 is available in the surface-mount

PFM package, and in the popular 3-pin TO-92

package for pin-compatibility with older 5V regulators.

The 8-lead LP2951-N is available in plastic, ceramic

dual-in-line, WSON, or metal can packages and

offers additional system functions.

Stable With Low-ESR Output Capacitors (10

mΩ to 6Ω)

One such feature is an error flag output which warns

of a low output voltage, often due to falling batteries

on the input. It may be used for a power-on reset. A

second feature is the logic-compatible shutdown input

which enables the regulator to be switched on and

off. Also, the part may be pin-strapped for a 5V, 3V,

or 3.3V output (depending on the version), or

programmed from 1.24V to 29V with an external pair

of resistors.

LP2951-N VERSIONS ONLY

•

Error Flag Warns of Output Dropout

Logic-Controlled Electronic Shutdown

Output Programmable From 1.24 to 29V

Careful design of the LP2950-N/LP2951-N has

minimized all contributions to the error budget. This

includes a tight initial tolerance (.5% typ.), extremely

good load and line regulation (.05% typ.) and a very

low output voltage temperature coefficient, making

the part useful as a low-power voltage reference.

Block Diagram and Typical Applications

Figure 1. LP2950-N

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...43

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LP2951CSD-3.3 替代型号

型号	品牌	替代类型	描述	数据表
LP2951CSD-3.3/NOPB	TI	类似代替	LP2950-N/LP2951-N Series of Adjustable Micropower Voltage Regulators

与LP2951CSD-3.3相关器件

型号	品牌	获取价格	描述	数据表
LP2951CSD-3.3/NOPB	TI	获取价格	LP2950-N/LP2951-N Series of Adjustable Micropower Voltage Regulators
LP2951CSDX	TI	获取价格	LP2950-N/LP2951-N Series of Adjustable Micropower Voltage Regulators
LP2951CSDX	NSC	获取价格	Series of Adjustable Micropower Voltage Regulators
LP2951CSDX/NOPB	TI	获取价格	LP2950-N/LP2951-N Series of Adjustable Micropower Voltage Regulators
LP2951CSDX/NOPB	NSC	获取价格	IC VREG 1.24 V-29 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.6 V DROPOUT, DSO8, ROHS COMPLIANT
LP2951CSDX-3.0	TI	获取价格	LP2950-N/LP2951-N Series of Adjustable Micropower Voltage Regulators
LP2951CSDX-3.0	NSC	获取价格	Series of Adjustable Micropower Voltage Regulators
LP2951CSDX-3.0/NOPB	TI	获取价格	LP2950-N/LP2951-N Series of Adjustable Micropower Voltage Regulators
LP2951CSDX-3.3	TI	获取价格	LP2950-N/LP2951-N Series of Adjustable Micropower Voltage Regulators
LP2951CSDX-3.3	NSC	获取价格	Series of Adjustable Micropower Voltage Regulators

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