LP4951C - 可调节微功耗电压稳压器

LP4951C是TI德州仪器公司的一款单通道LDO产品，LP4951C是可调节微功耗电压稳压器，本站介绍了LP4951C的封装应用图解、特点和优点、功能等，并给出了与LP4951C相关的TI元器件型号供参考。

LP4951C - 可调节微功耗电压稳压器 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品描述

The LP4950C and LP4951C are micropower voltage regulators with very low quiescent current (75μA typ.) and very low dropout voltage (typ. 40mV at light loads and 380mV at 100mA). They are ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the LP4950C/LP4951C increases only slightly in dropout, prolonging battery life.

The LP4950C in the popular 3-pin TO-92 package is pin compatible with older 5V regulators. The 8-lead LP4951C is available in a plastic surface mount package and offers additional system functions.

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 output or programmed from 1.24V to 29V with an external pair of resistors.

Careful design of the LP4950C/LP4951C 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.

产品特性

High Accuracy 5V Specified 100mA Output
Extremely Low Quiescent Current
Low Dropout Voltage
Extremely Tight Load and Line Regulation
Very Low Temperature Coefficient
Use as Regulator or Reference
Needs Only 1μF for Stability
Current and Thermal Limiting

LP4951C Versions Only

Error Flag Warns of Output Dropout
Logic-controlled Electronic Shutdown
Output Pogrammable From 1.24 to 29V

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