LP2950ACZ-5.0/LFT3

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Texas Instruments

100-MA, 30-V, LOW-DROPOUT VOLTAGE REGULATOR WITH LOW IQ

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DocumentsLP295x-N Series of Adjustable Micropower Voltage Regulators datasheet (Rev. Q)AN-1061 Power Conversion in Line-Powered Equipment (Rev. B)+3

LP2950ACZ-5.0/LFT3

Active

Texas Instruments

100-MA, 30-V, LOW-DROPOUT VOLTAGE REGULATOR WITH LOW IQ

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DocumentsLP295x-N Series of Adjustable Micropower Voltage Regulators datasheet (Rev. Q)AN-1061 Power Conversion in Line-Powered Equipment (Rev. B)+3

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics commom to parts in this series

Specification	LP2950ACZ-5.0/LFT3	LP2950 Series

Current - Output	100 mA	100 mA
Current - Quiescent (Iq)	120 µA	120 µA
Current - Supply (Max) [Max]	14 mA	14 mA
Mounting Type	Through Hole	Through Hole, Surface Mount
Number of Regulators	1	1
Operating Temperature [Max]	125 °C	125 °C
Operating Temperature [Min]	-40 °C	-40 °C
Output Configuration	Positive	Positive
Output Type	27.03 °C/W	27.03 °C/W
Output Type	-	Adjustable
Package / Case	TO-226-3, TO-226AA	TO-226-3, TO-226AA
Package / Case	TO-92-3	TO-92-3, DPAK (2 Leads + Tab), SC-63, TO-252-3, 8-DIP, TO-226-3, TO-92-3 (TO-226AA) Formed Leads
Package / Case	-	0.3 in
Package / Case	-	7.62 mm
Protection Features	Over Temperature, Over Current	Over Temperature, Over Current, Short Circuit
Supplier Device Package	TO-92-3	TO-92-3, TO-252-3, 8-PDIP
Voltage - Input (Max) [Max]	30 V	30 V
Voltage - Output (Max)	-	29 V
Voltage - Output (Min/Fixed)	5 V	1.24 - 5 V
Voltage Dropout (Max) [Max]	0.6 V	0.6 V

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	$ 1.10
		10	$ 0.98
		25	$ 0.93
		100	$ 0.77
		250	$ 0.72
		500	$ 0.63
		1000	$ 0.50
	Tape & Box (TB)	2000	$ 0.47
		6000	$ 0.44
		10000	$ 0.43
Texas Instruments	LARGE T&R	1	$ 0.81
		100	$ 0.63
		250	$ 0.46
		1000	$ 0.33

LP2950 Series

100-MA, 30-V, LOW-DROPOUT VOLTAGE REGULATOR WITH LOW IQ

Part	Current - Quiescent (Iq)	Voltage Dropout (Max) [Max]	Current - Supply (Max) [Max]	Output Configuration	Protection Features	Output Type	Mounting Type	Voltage - Input (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output	Supplier Device Package	Package / Case	Package / Case	Number of Regulators	Voltage - Output (Min/Fixed)	Voltage - Output (Max) [Max]	Package / Case	Package / Case	Output Type
Texas Instruments LP2950-33LPE3	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 °C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1	3.3 V
Texas Instruments LP2950CDT-3.0	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Surface Mount	30 V	125 °C	-40 °C	100 mA	TO-252-3		DPAK (2 Leads + Tab), SC-63, TO-252-3	1
Texas Instruments LP2950CZ-5.0/LFT3	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 °C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1	5 V
Texas Instruments LP2950CDTX-3.3	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature, Short Circuit	27.03 °C/W	Surface Mount	30 V	125 ¯C	-40 °C	100 mA	TO-252-3		DPAK (2 Leads + Tab), SC-63, TO-252-3	1	3.3 V
Texas Instruments LP2950CZ-3.0/LFT3	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 °C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1
Texas Instruments LP2950ACZ-5.0/NOPB	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 °C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1	5 V
Texas Instruments LP2950CDT-3.3/NOPB	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Surface Mount	30 V	125 °C	-40 °C	100 mA	TO-252-3		DPAK (2 Leads + Tab), SC-63, TO-252-3	1	3.3 V
Texas Instruments LP2950CZ-5.0/T1	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 °C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1	5 V
Texas Instruments LP2950CN	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature, Short Circuit		Through Hole	30 V	125 °C	-40 °C	100 mA	8-PDIP		8-DIP	1	1.24 V	29 V	0.3 in	7.62 mm	Adjustable
Texas Instruments LP2950CDT-3.0/NOPB	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Surface Mount	30 V	125 °C	-40 °C	100 mA	TO-252-3		DPAK (2 Leads + Tab), SC-63, TO-252-3	1
Texas Instruments LP2950CZ-5.0/NOPB	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 °C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1	5 V
Texas Instruments LP2950CDT-5.0/NOPB	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Surface Mount	30 V	125 °C	-40 °C	100 mA	TO-252-3		DPAK (2 Leads + Tab), SC-63, TO-252-3	1	5 V
Texas Instruments LP2950CZ-3.3/LFT1	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 °C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1	3.3 V
Texas Instruments LP2950CZ-3.0/NOPB	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 °C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1
Texas Instruments LP2950-50LPRE3	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 ¯C	-40 °C	100 mA	TO-92-3		TO-226-3, TO-92-3 (TO-226AA) Formed Leads	1	5 V
Texas Instruments LP2950CZ-5.0/LFT8	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 °C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1	5 V
Texas Instruments LP2950ACZ-5.0/LFT7	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature, Short Circuit	27.03 °C/W	Through Hole	30 V	125 ¯C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1	5 V
Texas Instruments LP2950ACZ-3.3/NOPB	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 °C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1	3.3 V
Texas Instruments LP2950CDT-3.3	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Surface Mount	30 V	125 °C	-40 °C	100 mA	TO-252-3		DPAK (2 Leads + Tab), SC-63, TO-252-3	1	3.3 V
Texas Instruments LP2950CZ-3.3	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 °C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1	3.3 V
Texas Instruments LP2950ACZ-5.0/LFT3	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 °C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1	5 V
Texas Instruments LP2950CZ-5.0	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 °C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1	5 V
Texas Instruments LP2950CDTX-5.0/NOPB	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature, Short Circuit	27.03 °C/W	Surface Mount	30 V	125 ¯C	-40 °C	100 mA	TO-252-3		DPAK (2 Leads + Tab), SC-63, TO-252-3	1	5 V
Texas Instruments LP2950-30LP	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 ¯C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1
Texas Instruments LP2950CDTX-3.0	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature, Short Circuit	27.03 °C/W	Surface Mount	30 V	125 ¯C	-40 °C	100 mA	TO-252-3		DPAK (2 Leads + Tab), SC-63, TO-252-3	1
Texas Instruments LP2950CZ-5.0/LFT7	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature, Short Circuit	27.03 °C/W	Through Hole	30 V	125 ¯C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1	5 V
Texas Instruments LP2950CZ-5.0/LFT1	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature, Short Circuit	27.03 °C/W	Through Hole	30 V	125 ¯C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1	5 V
Texas Instruments LP2950CZ-3.3/LFT3	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 °C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1	3.3 V
Texas Instruments LP2950ACZ-3.0/NOPB	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 °C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1
Texas Instruments LP2950-30LPR	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature, Short Circuit	27.03 °C/W	Through Hole	30 V	125 ¯C	-40 °C	100 mA	TO-92-3		TO-226-3, TO-92-3 (TO-226AA) Formed Leads	1
Texas Instruments LP2950CZ-3.3/NOPB	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature	27.03 °C/W	Through Hole	30 V	125 °C	-40 °C	100 mA	TO-92-3	TO-226-3, TO-226AA	TO-92-3	1	3.3 V
Texas Instruments LP2950CDTX-5.0	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature, Short Circuit	27.03 °C/W	Surface Mount	30 V	125 ¯C	-40 °C	100 mA	TO-252-3		DPAK (2 Leads + Tab), SC-63, TO-252-3	1	5 V
Texas Instruments LP2950-30LPRE3	120 µA	0.6 V	14 mA	Positive	Over Current, Over Temperature, Short Circuit	27.03 °C/W	Through Hole	30 V	125 ¯C	-40 °C	100 mA	TO-92-3		TO-226-3, TO-92-3 (TO-226AA) Formed Leads	1

Description

General part information

LP2950 Series

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 device 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% typical), extremely good load and line regulation (0.05% typical) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference.

One such feature is anerrorflag 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.

Documents

Technical documentation and resources

LP2950ACZ-5.0/LFT3

Deep-Dive with AI

LP2950ACZ-5.0/LFT3

Deep-Dive with AI

Technical Specifications

Pricing

LP2950 Series

Description

LP2950 Series

Documents

LP295x-N Series of Adjustable Micropower Voltage Regulators datasheet (Rev. Q)

AN-1061 Power Conversion in Line-Powered Equipment (Rev. B)

TO-92 Packing Options / Ordering Instructions (Rev. A)

A Topical Index of TI LDO Application Notes (Rev. F)

TO-92 Packing Options