TO-92-3(StandardBody),TO-226_straightlead

Integrated Circuits (ICs)

LP2950-33LPE3

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

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Search across all available documentation for this part.

DocumentsTechnical Review of Low Dropout Voltage Regulator Operation And Performance 3.6V – 5.5V Input, LDO Reference Design for MSP430 (Rev. A)+13

Integrated Circuits (ICs)

LP2950-33LPE3

Active

Texas Instruments

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

Deep-Dive with AI

DocumentsTechnical Review of Low Dropout Voltage Regulator Operation And Performance 3.6V – 5.5V Input, LDO Reference Design for MSP430 (Rev. A)+13

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LP2950-33LPE3

Current - Output	100 mA
Current - Quiescent (Iq)	120 µA
Current - Supply (Max) [Max]	14 mA
Mounting Type	Through Hole
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-226-3, TO-92-3
Protection Features	Over Current, Over Temperature
Supplier Device Package	TO-92-3
Voltage - Input (Max) [Max]	30 V
Voltage - Output (Min/Fixed)	3.3 V
Voltage Dropout (Max) [Max]	0.6 V

LP2950-N Series

100-mA, 30-V, low-dropout voltage regulator with low IQ

Part	Voltage - Input (Max) [Max]	Voltage Dropout (Max) [Max]	Package / Case	Current - Output	Output Configuration	Supplier Device Package	Output Type	Current - Supply (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Protection Features	Current - Quiescent (Iq)	Number of Regulators	Voltage - Output (Min/Fixed)
Texas Instruments LP2950CDT-3.0	30 V	0.6 V	DPAK (2 Leads + Tab) SC-63 TO-252-3	100 mA	Positive	TO-252-3	1.81 mOhm	14 mA	125 °C	-40 °C	Surface Mount	Over Current Over Temperature	120 µA	1
Texas Instruments LP2950CDTX-5.0	30 V	0.6 V	DPAK (2 Leads + Tab) SC-63 TO-252-3	100 mA	Positive	TO-252-3	1.81 mOhm	14 mA	125 ¯C	-40 °C	Surface Mount	Over Current Over Temperature Short Circuit	120 µA	1	5 V
Texas Instruments LP2950CZ-3.3/LFT3	30 V	0.6 V	TO-226-3 TO-92-3	100 mA	Positive	TO-92-3	1.81 mOhm	14 mA	125 °C	-40 °C	Through Hole	Over Current Over Temperature	120 µA	1	3.3 V
Texas Instruments LP2950CZ-5.0/LFT8	30 V	0.6 V	TO-226-3 TO-92-3	100 mA	Positive	TO-92-3	1.81 mOhm	14 mA	125 °C	-40 °C	Through Hole	Over Current Over Temperature	120 µA	1	5 V
Texas Instruments LP2950CDTX-3.3	30 V	0.6 V	DPAK (2 Leads + Tab) SC-63 TO-252-3	100 mA	Positive	TO-252-3	1.81 mOhm	14 mA	125 ¯C	-40 °C	Surface Mount	Over Current Over Temperature Short Circuit	120 µA	1	3.3 V
Texas Instruments LP2950ACZ-5.0/LFT3	30 V	0.6 V	TO-226-3 TO-92-3	100 mA	Positive	TO-92-3	1.81 mOhm	14 mA	125 °C	-40 °C	Through Hole	Over Current Over Temperature	120 µA	1	5 V
Texas Instruments LP2950ACZ-3.3/NOPB	30 V	0.6 V	TO-226-3 TO-92-3	100 mA	Positive	TO-92-3	1.81 mOhm	14 mA	125 °C	-40 °C	Through Hole	Over Current Over Temperature	120 µA	1	3.3 V
Texas Instruments LP2950CDT-3.0/NOPB	30 V	0.6 V	DPAK (2 Leads + Tab) SC-63 TO-252-3	100 mA	Positive	TO-252-3	1.81 mOhm	14 mA	125 °C	-40 °C	Surface Mount	Over Current Over Temperature	120 µA	1
Texas Instruments LP2950CDTX-5.0/NOPB	30 V	0.6 V	DPAK (2 Leads + Tab) SC-63 TO-252-3	100 mA	Positive	TO-252-3	1.81 mOhm	14 mA	125 ¯C	-40 °C	Surface Mount	Over Current Over Temperature Short Circuit	120 µA	1	5 V
Texas Instruments LP2950-33LPE3	30 V	0.6 V	TO-226-3 TO-92-3	100 mA	Positive	TO-92-3	1.81 mOhm	14 mA	125 °C	-40 °C	Through Hole	Over Current Over Temperature	120 µA	1	3.3 V

Pricing

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

Distributor	Package	Quantity	$

Digikey	Bulk	1	$ 1.98
		10	$ 1.26
		25	$ 1.07
		100	$ 0.86
		250	$ 0.76
		500	$ 0.69
		1000	$ 0.64
Texas Instruments	BULK	1	$ 1.24
		100	$ 0.84
		250	$ 0.65
		1000	$ 0.43

Description

General part information

LP2950-N 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.