LP2954A Series

250-mA, 30-V, low-dropout voltage regulator with high-accuracy

Catalog

250-mA, 30-V, low-dropout voltage regulator with high-accuracy

Part	Number of Regulators	Voltage - Output (Min/Fixed)	Supplier Device Package	Voltage Dropout (Max) [Max]	Current - Supply (Max) [Max]	Control Features	Voltage - Input (Max) [Max]	Output Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Output Type	Package / Case	Current - Output	Protection Features	Current - Quiescent (Iq)	Package / Case [y]	Package / Case [x]	Voltage - Output (Max)	Output Type
Texas Instruments LP2954AIS/NOPB	1	5 V	TO-263 (DDPAK-3)	0.8 V	33 mA	Enable	30 V	Positive	125 °C	-40 °C	Surface Mount	1.81 mOhm	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	250 mA	Over Current Over Temperature Reverse Polarity	150 çA
Texas Instruments LP2954AIMX/NOPB	1	1.23 V	8-SOIC	0.8 V	33 mA	Enable	30 V	Positive	125 °C	-40 °C	Surface Mount		8-SOIC	250 mA	Over Current Over Temperature Reverse Polarity	150 çA	3.9 mm	0.154 in	29 V	Adjustable
Texas Instruments LP2954AIT/NOPB	1	5 V	TO-220-3	0.8 V	33 mA	Enable	30 V	Positive	125 °C	-40 °C	Through Hole	1.81 mOhm	TO-220-3	250 mA	Over Current Over Temperature Reverse Polarity	150 çA
Texas Instruments LP2954IM	1	1.23 V	8-SOIC	0.8 V	33 mA	Enable	30 V	Positive	125 °C	-40 °C	Surface Mount		8-SOIC	250 mA	Over Current Over Temperature Reverse Polarity	150 çA	3.9 mm	0.154 in	29 V	Adjustable
Texas Instruments LP2954AISX/NOPB	1	5 V	TO-263 (DDPAK-3)	0.8 V	33 mA	Enable	30 V	Positive	125 °C	-40 °C	Surface Mount	1.81 mOhm	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	250 mA	Over Current Over Temperature Reverse Polarity	150 çA
Texas Instruments LP2954IT/NOPB	1	5 V	TO-220-3	0.8 V	33 mA	Enable	30 V	Positive	125 °C	-40 °C	Through Hole	1.81 mOhm	TO-220-3	250 mA	Over Current Over Temperature Reverse Polarity	150 çA
Texas Instruments LP2954AIMX	1	1.23 V	8-SOIC	0.8 V	33 mA	Enable	30 V	Positive	125 °C	-40 °C	Surface Mount		8-SOIC	250 mA	Over Current Over Temperature Reverse Polarity	150 çA	3.9 mm	0.154 in	29 V	Adjustable
Texas Instruments LP2954ISX	1	5 V	TO-263 (DDPAK-3)	0.8 V	33 mA	Enable	30 V	Positive	125 °C	-40 °C	Surface Mount	1.81 mOhm	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	250 mA	Over Current Over Temperature Reverse Polarity	150 çA
Texas Instruments LP2954AISX	1	5 V	TO-263 (DDPAK-3)	0.8 V	33 mA	Enable	30 V	Positive	125 °C	-40 °C	Surface Mount	1.81 mOhm	D2PAK (3 Leads + Tab) TO-263-4 TO-263AA	250 mA	Over Current Over Temperature Reverse Polarity	150 çA
Texas Instruments LP2954AIT	1	5 V	TO-220-3	0.8 V	33 mA	Enable	30 V	Positive	125 °C	-40 °C	Through Hole	1.81 mOhm	TO-220-3	250 mA	Over Current Over Temperature Reverse Polarity	150 çA

Catalog

250-mA, 30-V, low-dropout voltage regulator with high-accuracy

Key Features

• 5-V Output within 1.2% Over Temperature(A Grade)Adjustable 1.23-V to 29-V Output Voltage Available (LP2954IM and LP2954AIM)Ensured 250-mA Output CurrentExtremely Low Quiescent CurrentLow Dropout VoltageReverse Battery ProtectionExtremely Tight Line and Load RegulationVery Low Temperature CoefficientCurrent and Thermal LimitingPin Compatible with LM2940 and LM340(5-V Version Only)Adjustable Version AddsERRORFlag to Warn of Output Drop and a Logic-Controlled Shutdown5-V Output within 1.2% Over Temperature(A Grade)Adjustable 1.23-V to 29-V Output Voltage Available (LP2954IM and LP2954AIM)Ensured 250-mA Output CurrentExtremely Low Quiescent CurrentLow Dropout VoltageReverse Battery ProtectionExtremely Tight Line and Load RegulationVery Low Temperature CoefficientCurrent and Thermal LimitingPin Compatible with LM2940 and LM340(5-V Version Only)Adjustable Version AddsERRORFlag to Warn of Output Drop and a Logic-Controlled Shutdown

Description

The LP2954 is a 5-V micropower LDO with very low quiescent current (90 μA typical at 1-mA load) and very low dropout voltage (typically 60 mV at light loads and 470 mV at 250-mA load current). The quiescent current increases only slightly at dropout (120 μA typical), which prolongs battery life. The LP2954 with a fixed 5-V output is available in three-pin TO-220 and DDPAK/TO-263 packages. The adjustable LP2954 is provided in an 8-pin, small-outline SOIC package. The adjustable version also provides a resistor network which can be pin strapped to set the output to any voltage from to 1.23 V to 29 V. Reverse battery protection is provided for the IN pin. The tight line and load regulation (0.04% typical), as well as very low output temperature coefficient make the LP2954 well suited for use as a low-power voltage reference. Output accuracy is ensured at both room temperature and over the entire operating temperature range. The LP2954 is a 5-V micropower LDO with very low quiescent current (90 μA typical at 1-mA load) and very low dropout voltage (typically 60 mV at light loads and 470 mV at 250-mA load current). The quiescent current increases only slightly at dropout (120 μA typical), which prolongs battery life. The LP2954 with a fixed 5-V output is available in three-pin TO-220 and DDPAK/TO-263 packages. The adjustable LP2954 is provided in an 8-pin, small-outline SOIC package. The adjustable version also provides a resistor network which can be pin strapped to set the output to any voltage from to 1.23 V to 29 V. Reverse battery protection is provided for the IN pin. The tight line and load regulation (0.04% typical), as well as very low output temperature coefficient make the LP2954 well suited for use as a low-power voltage reference. Output accuracy is ensured at both room temperature and over the entire operating temperature range.