LP2981AIM5-2.5/NOPB
Texas InstrumentsUnited States

LP2981AIM5-2.5/NOPB

Last Time BuyVoltage Regulators - LinearSOT-23

IC REG LINEAR 2.5V 100MA SOT23-5

LP2981AIM5-2.5/NOPB is a 100-mA fixed 2.5-V ultra-low dropout linear regulator in SOT-23 package, operating from -40°C to 125°C with overtemperature and overcurrent protection.Checked against the datasheet

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Technical parameters

Key specs

Output voltage2.5 V
Output current100 mAMax
Input voltage2.1 ~ 16 V
Dropout voltage200 mVTyp · Max 250 mV at IL=100 mA，TJ=25°C
Quiescent current600 µATyp · Max 800 μA at IL=100 mA，TJ=25°C

Datasheet-verified parameters

22 items
ParameterValue and test conditionsSource
Output Voltage2.5 V (Nominal)
Output Current100 mA (Specified)
Input Voltage Range2.1 V to 16 V (Operating)
Dropout VoltageTyp 200 mV, Max 250 mV at IL=100 mA, TJ=25°C
Quiescent CurrentTyp 600 μA, Max 800 μA at IL=100 mA, TJ=25°C
PackageSOT-23 (5)
Operating Temperature-40°C to 125°C
GradeA Grade (0.75% Tolerance)
RoHSGreen (RoHS & no Sb/Br)
Halogen FreeYes (no Sb/Br)
Recommended Operating Junction Temperature-40°C to 125°C
Absolute Maximum Input Supply Voltage16 V (Survival), 16 V (Operating)
Absolute Maximum Storage Temperature-65°C to 150°C
Peak Output CurrentMin 150 mA, Typ 400 mA at VOUT ≥ VONOM - 5%
Short-Circuit CurrentTyp 150 mA (Steady State)
Output Noise Voltage (RMS)Typ 160 μV (BW 300 Hz to 50 kHz, COUT=10 μF)
Ripple RejectionTyp 63 dB (f=1 kHz, COUT=10 μF)
ON/OFF Input Voltage (High)Typ 1.4 V, Min 1.6 V (at -40°C to 125°C)
ON/OFF Input Voltage (Low)Max 0.5 V, Max 0.15 V (at -40°C to 125°C)
ESD Human Body Model±2000 V (Pins 1, 2, 5), ±1000 V (Pins 3, 4)
Protection FeaturesOvertemperature and Overcurrent Protection
Package Body Size2.90 mm × 1.60 mm (Nom)
All parameters (22)ExpandCollapse
Power
Current - Output100mA
Current - Quiescent (Iq)95 µA
Current - Supply (Max)1.7 mA
Voltage Dropout (Max)0.37V @ 100mA
Voltage - Input (Max)16V
Voltage - Output (Max)-
Voltage - Output (Min/Fixed)2.5V
AC and DC characteristics
PSRR63dB (1kHz)
Environment and package
Mounting TypeSurface Mount
Operating Temperature-40°C~125°C
PackageTape & Reel (TR); Cut Tape (CT); Digi-Reel®
Package / CaseSC-74A, SOT-753
Supplier Device PackageSOT-23-5
Other
Base Product NumberLP2981
Control FeaturesEnable
MfrTexas Instruments
Number of Regulators1
Output ConfigurationPositive
Output TypeFixed
Product StatusLast Time Buy
Protection FeaturesOver Current, Over Temperature, Short Circuit
Series-

Pinout and package

DBV Package 5-Pin SOT-23 Top V…
DBV Package 5-Pin SOT-23 Top V…
Package: SOT-23 (5)
PinNameFunctionSource
1IN(Input voltage pin)
2GND(Common ground/device substrate)
3ON/OFF(Logic high enable input)
4NC(Do Not Connect/Reserved for test)
5OUT(Regulated output voltage)

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DatasheetDatasheet · 1.2 MB · 2026-10-28
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