LP2950-N - 固定微功耗稳压器系列

LP2950-N是TI德州仪器公司的一款单通道LDO产品，LP2950-N是固定微功耗稳压器系列，本站介绍了LP2950-N的封装应用图解、特点和优点、功能等，并给出了与LP2950-N相关的TI元器件型号供参考。

LP2950-N - 固定微功耗稳压器系列 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品特性

Input Voltage Range: 2.3 V to 30 V
5-V, 3-V, and 3.3-V Output Voltage Versions Available
High Accuracy Output Voltage
Ensured 100-mA Output Current
Extremely Low Quiescent Current
Low Dropout Voltage
Extremely Tight Load and Line Regulation
Very Low Temperature Coefficient
Use as Regulator or Reference
Needs Minimum Capacitance for Stability
Current and Thermal Limiting
Stable With Low-ESR Output Capacitors (10 mΩ to 6 Ω)
LP2951-N Versions Only:
- Error Flag Warns of Output Dropout
- Logic-Controlled Electronic Shutdown
- Output Programmable From 1.24 V to 29 V

产品应用

High-Efficiency Linear Regulator
Regulator with Undervoltage Shutdown
Low dropout Battery-powered Regulator
Snap-ON/Snap-OFF Regulator

产品说明

The LP2950-N and LP2951-N are micropower voltage regulators with very low quiescent current (75 μA typical) and very low dropout voltage (typical 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.

Careful design of the LP2950-N/LP2951-N has minimized all contributions to the error budget. This includes a tight initial tolerance (0.5% 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.

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 5-V, 3-V, or 3.3-V output (depending on the version), or programmed from 1.24 V to 29 V with an external pair of resistors.

The LP2950-N is available in the surface-mount TO-252 package and in the popular 3-pin TO-92 package for pin-compatibility with older 5-V regulators. The 8-lead LP2951-N is available in plastic, ceramic dual-in-line, WSON, or metal can packages and offers additional system functions.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
LP2950-N	TO-92 (3)	4.30 mm x 4.30 mm
LP2950-N	TO-252 (3)	9.91 mm x 6.58 mm
LP2951-N	SOIC (8)	4.90 mm x 3.91 mm
	VSSOP (8)	3.00 mm x 3.00 mm
	WSON (8)	4.00 mm x 4.00 mm
	PDIP (8)	9.81 mm x 6.35 mm

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