LP2953A - 可调节微功耗低压降稳压器

LP2953A是TI德州仪器公司的一款单通道LDO产品，LP2953A是可调节微功耗低压降稳压器，本站介绍了LP2953A的封装应用图解、特点和优点、功能等，并给出了与LP2953A相关的TI元器件型号供参考。

LP2953A - 可调节微功耗低压降稳压器 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品特性

2.3-V to 30-V Input Voltage Range
Output Voltage Adjusts from 1.23 V to 29 V
250-mA Output Current
Extremely Low Quiescent Current
Low Dropout Voltage
Extremely Tight Line and Load Regulation
Very Low Temperature Coefficient
Current and Thermal Limiting
Reverse Battery-Input Protection
50-mA (Typical) Automatic Output Discharge
LP2953 Versions Only
- Auxiliary Comparator Included With CMOS- and TTL-Compatible Output Levels. Can Be Used for Fault Detection, Low-Input Line Detection, and so on.

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 LP2952 and LP2953 are micropower voltage regulators with very low quiescent current (130 μA typical at 1-mA load) and very low dropout voltage (typically 60 mV at light load and 470 mV at 250-mA load current). They are ideally suited for battery-powered systems. Furthermore, the quiescent current increases only slightly at dropout, which prolongs battery life.

The LP2952 and LP2953 retain all the desirable characteristics of the LP2951, but offer increased output current, additional features, and an improved shutdown function.

The automatic output discharge pulls the output down quickly when the shutdown is activated.

The error flag goes low if the output voltage drops out of regulation.

Reverse battery-input protection is provided.

The internal voltage reference is made available for external use, providing a low temperature coefficient (20 ppm/°C) reference with very good line (0.03%) and load (0.04%) regulation.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
LP2952x	SOIC (16)	9.90 mm × 3.91 mm
LP2953x	SOIC (16)	9.90 mm × 3.91 mm
LP2953x	PDIP (16)	21.755 mm × 6.35 mm

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