Specification	LP2954AISX/NOPB

Control Features	Enable
Current - Output	250 mA
Current - Quiescent (Iq)	150 çA
Current - Supply (Max) [Max]	33 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	TO-263AA, D2PAK (3 Leads + Tab), TO-263-4
Protection Features	Over Temperature, Reverse Polarity, Over Current
Supplier Device Package	TO-263 (DDPAK-3)
Voltage - Input (Max) [Max]	30 V
Voltage - Output (Min/Fixed)	5 V
Voltage Dropout (Max) [Max]	0.8 V

LP2954A Series

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

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 2.97
		10	$ 2.67
		25	$ 2.52
		100	$ 2.19
		250	$ 2.07
	Digi-Reel®	1	$ 2.97
		10	$ 2.67
		25	$ 2.52
		100	$ 2.19
		250	$ 2.07
	Tape & Reel (TR)	500	$ 1.86
		1000	$ 1.57
		2500	$ 1.49
		5000	$ 1.44
Texas Instruments	LARGE T&R	1	$ 2.24
		100	$ 1.97
		250	$ 1.38
		1000	$ 1.11

Description

General part information

LP2954A Series

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.

Documents

Technical documentation and resources

LP2954, LP2954A 5-V and Adjustable Micropower LDOs datasheet (Rev. E)

Data sheet