PIN CONNECTIONS (Top View)

PIN CONNECTIONS (Top View)

onsemiUnited States

LP2951CD

ObsoleteVoltage Regulators - LinearSOIC-8

IC REG LIN POS ADJ 100MA 8SOIC

LP2951CD is a SOIC-8 package micropower linear voltage regulator supporting 3.0V/3.3V/5.0V fixed or 1.25V-29V adjustable output, with 100mA max output current, low quiescent current, error output, and shutdown features.Checked against the datasheet

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Technical parameters

Key specs

Output voltage1.25 ~ 29 V
Output current100 mAMax
Input voltage4 ~ 30 V
Dropout voltage80 mVMax · Typ 30 mV (IO=100 μA)，Typ 350 mV (IO=100 mA)，Max 80 mV (IO=100 μA)，Max 450 mV (IO=100 mA)
Quiescent current75 µATyp · Typ 75 μA (IO=100 μA)，Typ 4.0 mA (IO=100 mA)，Max 120 μA (IO=100 μA)，Max 12 mA (IO=100 mA)

Datasheet-verified parameters

17 items
ParameterValue and test conditionsSource
Output Voltage3.0 V, 3.3 V, 5.0 V (Fixed) or 1.25 V to 29 V (Adjustable)
Output Current100 mA (Max)
Input Voltage Range4.0 V to 30 V (for 3.0V/3.3V versions), 6.0 V to 30 V (for 5.0V version)
Dropout VoltageTyp 30 mV (IO=100 μA), Typ 350 mV (IO=100 mA); Max 80 mV (IO=100 μA), Max 450 mV (IO=100 mA)
Quiescent CurrentTyp 75 μA (IO=100 μA), Typ 4.0 mA (IO=100 mA); Max 120 μA (IO=100 μA), Max 12 mA (IO=100 mA)
PackageSOIC-8
Operating Temperature-40°C to +125°C
GradeCommercial (LP2951), Automotive (NCV2951 prefix only)
RoHSCompliant
Line RegulationTyp 0.08%, Max 0.20% (LP2951C), Typ 0.04%, Max 0.10% (LP2951AC)
Load RegulationTyp 0.13%, Max 0.20% (LP2951C), Typ 0.05%, Max 0.10% (LP2951AC)
Current LimitTyp 220 mA, Max 300 mA (VO Shorted to Ground)
Output Noise VoltageTyp 126 μVrms (CL=1.0 μF), Typ 56 μVrms (CL=100 μF) (10 Hz to 100 kHz)
Thermal RegulationTyp 0.05 %/W, Max 0.20 %/W
Protection FeaturesInternal Current and Thermal Limiting
ESD ProtectionHBM 2000 V Class 2, MM 200 V Class B, CDM 2000 V Class IV
Recommended Output Capacitor1.0 μF (Min for stability)
All parameters (22)ExpandCollapse
Power
Current - Output100mA
Current - Quiescent (Iq)120 µA
Current - Supply (Max)12 mA
Voltage Dropout (Max)0.45V @ 100mA
Voltage - Input (Max)30V
Voltage - Output (Max)30V
Voltage - Output (Min/Fixed)1.235V (5V)
AC and DC characteristics
PSRR-
Environment and package
Mounting TypeSurface Mount
Operating Temperature-40°C~125°C
PackageTube
Package / Case8-SOIC (0.154", 3.90mm Width)
Supplier Device Package8-SOIC
Other
Base Product NumberLP295
Control Features-
Mfronsemi
Number of Regulators1
Output ConfigurationPositive
Output TypeAdjustable (Fixed)
Product StatusObsolete
Protection FeaturesOver Current, Over Temperature
Series-

Pinout and package

PIN CONNECTIONS (Top View)
PIN CONNECTIONS (Top View)
Package: SOIC-8
PinNameFunctionSource
1Output
2Sense
3Shutdown
4GND
5Error Output
6VOTap
7Feedback
8Input

Documents

DatasheetDatasheet · 1.0 MB · 2026-10-29
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Datasheet-verified content is extracted by AI from the manufacturer datasheet. Click a page number to view the original.