LP2950-30LP

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Texas Instruments

100-MA, 30-V, LOW-DROPOUT VOLTAGE REGULATOR WITH LOW IQ 3-TO-92 -40 TO 125

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DocumentsDatasheet Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A)+14

LP2950-30LP

Active

Texas Instruments

100-MA, 30-V, LOW-DROPOUT VOLTAGE REGULATOR WITH LOW IQ 3-TO-92 -40 TO 125

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DocumentsDatasheet Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A)+14

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics commom to parts in this series

Specification	LP2950-30LP	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)	-	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	N/A	1	$ 1.06
		10	$ 0.76
		25	$ 0.69
		100	$ 0.61
		250	$ 0.57
		581	$ 0.52
Digikey	Bulk	1	$ 1.85
		10	$ 1.18
		25	$ 1.00
		100	$ 0.80
		250	$ 0.70
Mouser Electronics	N/A	1	$ 1.06
		10	$ 0.69
		100	$ 0.57
		500	$ 0.57
		1000	$ 0.54
		2000	$ 0.52
		4000	$ 0.52
Rochester Electronics	N/A	1	$ 0.50
		25	$ 0.49
		100	$ 0.47
		500	$ 0.45
		1000	$ 0.42
Texas Instruments	BULK	1	$ 1.13
		100	$ 0.77
		250	$ 0.59
		1000	$ 0.39

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 LP2951 is a wide input low-dropout regulator (LDO) supporting an input voltage range from 2V to 30V and can supply up to 100mA of load current. The LP2951 is able to output either a fixed or adjustable output from the same device. By tying the OUTPUT and SENSE pins together, and the FEEDBACK and VTAP pins together, the LP2951 gives 3.3V or 5V fixed output voltages. Alternatively, leave the SENSE and VTAP pins open and connect FEEDBACK to an external resistor divider. This configuration allows the output to be set to any value between 1.2V to 29V.

The LP2951-Q1 has a ERROR output that monitors the voltage at the feedback pin to indicate the status of the output voltage. The SHUTDOWN input and ERROR output are used for sequencing multiple power supplies in the system.

Documents

Technical documentation and resources

Datasheet

Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A)

Application note

LP295x 100-mA, 30-V, adjustable voltage regulator with shutdown datasheet (Rev. K)

Data sheet

3.6V – 5.5V Input, LDO with Dual-Level Output Reference Design for MSP430 (Rev. A)

Application note

Understanding LDO Dropout

Application note

LP2950-30LP

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LP2950-30LP

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Technical Specifications

Pricing

LP2950 Series

Description

LP2950 Series

Documents

Datasheet

Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A)

LP295x 100-mA, 30-V, adjustable voltage regulator with shutdown datasheet (Rev. K)

Simple Power Solution Using LDOs for the DM365 (Rev. A)

Technical Review of Low Dropout Voltage Regulator Operation And Performance

AN-1815 LDOs Ease the Stress of Start-Up (Rev. A)

LDO PSRR Measurement Simplified (Rev. A)

Extending the Input Voltage Range of an LDO Regulator

Packaging Limits Range of Linear Regulators

Understanding the Terms and Definitions of LDO Voltage Regulators

3.6V – 5.5V Input, LDO Reference Design for MSP430 (Rev. A)

LDO Noise Demystified (Rev. B)

ESR, Stability, and the LDO Regulator (Rev. A)

Ceramic Capacitors Replace Tantalum Capacitors in LDOs (Rev. A)

3.6V – 5.5V Input, LDO with Dual-Level Output Reference Design for MSP430 (Rev. A)

Understanding LDO Dropout