8-Pin PDIP, SOIC, VSSOP Top Vi…

LP2951CM-3.3

Not For New DesignsVoltage Regulators - Linear8-Pin

IC REG LIN POS ADJ 100MA 8SOIC

LP2951CM-3.3 is a micropower linear voltage regulator with a 3.3V output, input range of 2.3V to 30V, and a maximum output current of 100mA. It features low quiescent current and low dropout voltage in an 8-pin package.Checked against the datasheet

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Technical parameters

Key specs

Output voltage3.284 ~ 3.317 VT_J=25°C

Output current100 mAMax

Input voltage2.3 ~ 30 V

Dropout voltage450 mVMax · I_L=100 mA

Quiescent current75 µATyp · I_L=100 μA

Datasheet-verified parameters

19 items

Parameter	Value and test conditions	Source
Output voltage	3.284 V (Min) / 3.3 V (Typ) / 3.317 V (Max) @ T_J=25°C
Output current	100 mA (Ensured)
Input Voltage Range	2.3 V to 30 V
Dropout voltage	380 mV (Typ) / 450 mV (Max) @ I_L=100 mA
Quiescent current	75 µA (Typ) / 120 µA (Max) @ I_L=100 µA
Package	8-Pin (SOIC, VSSOP, WSON, PDIP)
Operating temperature	-55°C to 150°C (Junction Temperature)
Recommended Operating Conditions	Max Input Supply Voltage: 30 V; Junction Temperature: -55°C to 150°C
Absolute Maximum Ratings	Input Supply Voltage: -0.3 V to 30 V; Junction Temperature: 150°C; Storage Temperature: -65°C to 150°C
Line regulation	0.03% (Typ) / 0.1% (Max) @ V_IN = V_ONOM+1V to 30V
Load regulation	0.04% (Typ) / 0.1% (Max) @ 100 µA ≤ I_L ≤ 100 mA
Output voltage temperature coefficient	20 ppm/°C (Typ) / 120 ppm/°C (Max) @ -40°C ≤ T_J ≤ 125°C
Current limit	160 mA (Typ) / 200 mA (Max) @ V_OUT=0 V
Thermal regulation	0.05 %/W (Typ) / 0.2 %/W (Max)
Output noise	100 µV_RMS (Typ) @ 10 Hz to 100 kHz, C_L=3.3 µF
Reference voltage	1.22 V (Min) / 1.235 V (Typ) / 1.25 V (Max)
Feedback pin bias current	20 nA (Typ) / 40 nA (Max)
ESD Rating	±2500 V (HBM) for IN, OUT, GND, ERROR; ±2000 V for SHUTDOWN; ±1500 V for SENSE; ±1000 V for VTAP, FEEDBACK
Protection Features	Current and Thermal Limiting

All parameters (22)ExpandCollapse

Power
Current - Output	100mA
Current - Quiescent (Iq)	120 µA
Current - Supply (Max)	14 mA
Voltage Dropout (Max)	0.6V @ 100mA
Voltage - Input (Max)	30V
Voltage - Output (Max)	29V
Voltage - Output (Min/Fixed)	1.235V (3.3V)
AC and DC characteristics
PSRR	-
Environment and package
Mounting Type	Surface Mount
Operating Temperature	-40°C~125°C(TJ)
Package	Tube
Package / Case	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SOIC
Other
Base Product Number	LP2951
Control Features	Enable
Mfr	Texas Instruments
Number of Regulators	1
Output Configuration	Positive
Output Type	Adjustable (Fixed)
Product Status	Not For New Designs
Protection Features	Over Current, Over Temperature, Short Circuit
Series	-

Pinout and package

Pin	Name	Function
1	OUT	(Regulated output voltage)
2	SENSE	(Output voltage sense)
3	SHUTDOWN	(Disable device)
4	GROUND	(Ground)
5	ERROR	(Error output)
6	VTAP	(Internal resistor divider)
7	FEEDBACK	(Voltage feedback input)
8	IN	(Input supply voltage)

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DatasheetDatasheet · 2.1 MB · 2026-10-29

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