LP2953 Series

250-mA, 30-V, low-dropout voltage regulator with power good & enable

Catalog(11 parts)

Part	Current - Quiescent (Iq)▲▼	Mounting Type	Voltage - Output (Max)▲▼	Voltage - Input (Max)▲▼	Output Type	Supplier Device Package	Voltage Dropout (Max)▲▼	Output Configuration	Current - Output▲▼	Control Features	Number of Regulators▲▼	Current - Supply (Max)▲▼	Operating Temperature▲▼	Operating Temperature▲▼	Package / Case▲▼	Package / Case	Voltage - Output (Min/Fixed)▲▼	Voltage - Output (Min/Fixed)▲▼	Protection Features	Voltage - Output (Min/Fixed)▲▼
Texas Instruments LP2953IN-3.3 Linear Voltage Regulator IC Positive Adjustable (Fixed) 1 Output 250mA 16-PDIP	0.00016999999934341758 A	Through Hole	29 V	30 V	Adjustable (Fixed)	16-PDIP	0.800000011920929 V	Positive	0.25 A	Enable	1 ul	0.032999999821186066 A	125 °C	-40 °C	0.007619999814778566 m, 0.007619999814778566 m	16-DIP	3.299999952316284 V	1.2300000190734863 V	Over Current, Over Temperature, Reverse Polarity
Texas Instruments LP2953IN Linear Voltage Regulator IC Positive Adjustable (Fixed) 1 Output 250mA 16-PDIP	0.00016999999934341758 A	Through Hole	29 V	30 V	Adjustable (Fixed)	16-PDIP	0.800000011920929 V	Positive	0.25 A	Enable	1 ul	0.032999999821186066 A	125 °C	-40 °C	0.007619999814778566 m, 0.007619999814778566 m	16-DIP	1.2300000190734863 V		Over Current, Over Temperature, Reverse Polarity	5 V
Texas Instruments LP2953AIMX/NOPB Linear Voltage Regulator IC Positive Adjustable (Fixed) 1 Output 250mA 16-SOIC	0.00016999999934341758 A	Surface Mount	29 V	30 V	Adjustable (Fixed)	16-SOIC	0.800000011920929 V	Positive	0.25 A	Enable	1 ul	0.032999999821186066 A	125 °C	-40 °C	0.003911599982529879 m, 3.900000095367432 ul	16-SOIC	1.2300000190734863 V		Over Current, Over Temperature, Reverse Polarity	5 V
Texas Instruments LP2953IMX/NOPB Linear Voltage Regulator IC Positive Adjustable (Fixed) 1 Output 250mA 16-SOIC	0.00016999999934341758 A	Surface Mount	29 V	30 V	Adjustable (Fixed)	16-SOIC	0.800000011920929 V	Positive	0.25 A	Enable	1 ul	0.032999999821186066 A	125 °C	-40 °C	0.003911599982529879 m, 3.900000095367432 ul	16-SOIC	1.2300000190734863 V		Over Current, Over Temperature, Reverse Polarity	5 V
Texas Instruments LP2953IM Linear Voltage Regulator IC Positive Adjustable (Fixed) 1 Output 250mA 16-SOIC	0.00016999999934341758 A	Surface Mount	29 V	30 V	Adjustable (Fixed)	16-SOIC	0.800000011920929 V	Positive	0.25 A	Enable	1 ul	0.032999999821186066 A	125 °C	-40 °C	0.003911599982529879 m, 3.900000095367432 ul	16-SOIC	1.2300000190734863 V		Over Current, Over Temperature, Reverse Polarity	5 V
Texas Instruments LP2953IM-3.3 Linear Voltage Regulator IC Positive Adjustable (Fixed) 1 Output 250mA 16-SOIC	0.00016999999934341758 A	Surface Mount	29 V	30 V	Adjustable (Fixed)	16-SOIC	0.800000011920929 V	Positive	0.25 A	Enable	1 ul	0.032999999821186066 A	125 °C	-40 °C	0.003911599982529879 m, 3.900000095367432 ul	16-SOIC	3.299999952316284 V	1.2300000190734863 V	Over Current, Over Temperature, Reverse Polarity
Texas Instruments LP2953AIMX Linear Voltage Regulator IC Positive Adjustable (Fixed) 1 Output 250mA 16-SOIC	0.00016999999934341758 A	Surface Mount	29 V	30 V	Adjustable (Fixed)	16-SOIC	0.800000011920929 V	Positive	0.25 A	Enable	1 ul	0.032999999821186066 A	125 °C	-40 °C	0.003911599982529879 m, 3.900000095367432 ul	16-SOIC	1.2300000190734863 V		Over Current, Over Temperature, Reverse Polarity	5 V
Texas Instruments LP2953IN/NOPB Linear Voltage Regulator IC Positive Adjustable (Fixed) 1 Output 250mA 16-PDIP	0.00016999999934341758 A	Through Hole	29 V	30 V	Adjustable (Fixed)	16-PDIP	0.800000011920929 V	Positive	0.25 A	Enable	1 ul	0.032999999821186066 A	125 °C	-40 °C	0.007619999814778566 m, 0.007619999814778566 m	16-DIP	1.2300000190734863 V		Over Current, Over Temperature, Reverse Polarity	5 V
Texas Instruments LP2953IMX Linear Voltage Regulator IC Positive Adjustable (Fixed) 1 Output 250mA 16-SOIC	0.00016999999934341758 A	Surface Mount	29 V	30 V	Adjustable (Fixed)	16-SOIC	0.800000011920929 V	Positive	0.25 A	Enable	1 ul	0.032999999821186066 A	125 °C	-40 °C	0.003911599982529879 m, 3.900000095367432 ul	16-SOIC	1.2300000190734863 V		Over Current, Over Temperature, Reverse Polarity	5 V
Texas Instruments LP2953AIM/NOPB Linear Voltage Regulator IC Positive Adjustable (Fixed) 1 Output 250mA 16-SOIC	0.00016999999934341758 A	Surface Mount	29 V	30 V	Adjustable (Fixed)	16-SOIC	0.800000011920929 V	Positive	0.25 A	Enable	1 ul	0.032999999821186066 A	125 °C	-40 °C	0.003911599982529879 m, 3.900000095367432 ul	16-SOIC	1.2300000190734863 V		Over Current, Over Temperature, Reverse Polarity	5 V
Texas Instruments LP2953IM/NOPB Linear Voltage Regulator IC Positive Adjustable (Fixed) 1 Output 250mA 16-SOIC	0.00016999999934341758 A	Surface Mount	29 V	30 V	Adjustable (Fixed)	16-SOIC	0.800000011920929 V	Positive	0.25 A	Enable	1 ul	0.032999999821186066 A	125 °C	-40 °C	0.003911599982529879 m, 3.900000095367432 ul	16-SOIC	1.2300000190734863 V		Over Current, Over Temperature, Reverse Polarity	5 V

Key Features

• 2.3-V to 30-V Input Voltage RangeOutput Voltage Adjusts from 1.23 V to 29 V250-mA Output CurrentExtremely Low Quiescent CurrentLow Dropout VoltageExtremely Tight Line and Load RegulationVery Low Temperature CoefficientCurrent and Thermal LimitingReverse Battery-Input Protection50-mA (Typical) Automatic Output DischargeLP2953 Versions OnlyAuxiliary Comparator Included With CMOS-and TTL-Compatible Output Levels. Can BeUsed for Fault Detection, Low-Input LineDetection, and so on.2.3-V to 30-V Input Voltage RangeOutput Voltage Adjusts from 1.23 V to 29 V250-mA Output CurrentExtremely Low Quiescent CurrentLow Dropout VoltageExtremely Tight Line and Load RegulationVery Low Temperature CoefficientCurrent and Thermal LimitingReverse Battery-Input Protection50-mA (Typical) Automatic Output DischargeLP2953 Versions OnlyAuxiliary Comparator Included With CMOS-and TTL-Compatible Output Levels. Can BeUsed for Fault Detection, Low-Input LineDetection, and so on.

Description

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. 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.