The LP3981IMM-3.03 is a micropower, ultra-low-dropout CMOS voltage regulator from Texas Instruments, designed to deliver a maximum output current of 300 mA. It operates with an input voltage range of 2.5 V to 6 V and features a typical dropout voltage of 132 mV at full load. The device is optimized for battery-powered applications, offering a quiescent current of less than 1 ¬µA in shutdown mode, which helps prolong battery life. With a power supply rejection ratio (PSRR) of 60 dB at 1 kHz, the LP3981IMM-3.03 ensures low output noise, measured at 35 ¬µVrms over a frequency range of 10 Hz to 100 kHz. It includes thermal shutdown and short-circuit current limit protection, enhancing its reliability in various applications. The regulator is stable with both ceramic and high-quality tantalum capacitors, making it suitable for mobile phones and other wireless devices. The LP3981IMM-3.03 is available in an 8-pin VSSOP package and operates effectively across a temperature range of -40¬8C to +125¬8C.
Micropower, 300mA Ultra Low-Dropout CMOS Voltage Regulator 8-VSSOP -40 to 125
Manufacturer: Texas Instruments
Win Source Part Number: 071877-LP3981IMM-3.0
Packaging: Reel - TR
Mounting: SMD (SMT)
Regulator Topology: Positive Fixed
Voltage - Dropout (Typical): 0.132V @ 300mA
Number of Regulators: 1
Output Type: Fixed
Control Features: Enable
Output Current: 300mA
Output Voltage: 3.03V
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -40°C to 125°C
Case / Package: 8-VSSOP
Maximum Input Voltage: 6V
Nominal Output Voltage (Min/Fixed): 3.03V
Dropout Voltage-Max: 0.2V @ 300mA
Operating Supply Current: 120μA to 210μA
PSRR: 50dB to 55dB (1kHz to 10kHz)
Protection Features: Over Current, Over Temperature, Short Circuit
3.03V LDO 300mA 6V In, 2% Acc, VSSOP, SM Product overview: LP3981IMM-3.03 from Texas Instruments is a LDO Voltage Regulator IC for stable power rails, DC-DC conversion, battery-powered electronics, automotive modules, and embedded power management. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include LDO, 3.03V, 300mA, 6V. Search-friendly keywords include voltage regulator, LDO, buck converter, boost converter, power rail, 3.03V, 300mA, 6V, LDO Voltage Regulator IC, Linear & Switching Voltage Regulators. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 776-LP3981IMM-3.03 can be used for catalog matching and distributor lookup.
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LDO Voltage Regulators Micropower, 300mA Ultra Low-Dropout CMOS Voltage Regulator 8-VSSOP -40 to 125
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| Texas Instruments | Win Source Electronics | ERSAELECTRONICS PTE. LTD. | DigiKey | VAST STOCK CO., LIMITED | Quarktwin Technology Ltd. | Quarktwin Technology Ltd. | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|---|---|---|---|
| Product Category | IC Linear Voltage Regulators | IC Linear Voltage Regulators | IC Voltage Regulators | IC Linear Voltage Regulators | IC Linear Voltage Regulators | IC Linear Voltage Regulators | IC Linear Voltage Regulators | IC Linear Voltage Regulators | IC Voltage Regulators |
| Product Number | LP3981IMM-3.03 | 071877-LP3981IMM-3.03 | 776-LP3981IMM-3.03 | 296-LP3981IMM-3.03CT-ND | LP3981IMM-3.03 | LP3981IMM-3.03 | LP3981IMM-3.03 | LP3981IMM-3.03 | LP3981IMM-3.03 |
| Product Name | LP3981 Micropower, 300mA Ultra Low-Dropout CMOS Voltage Regulator | PMIC - PMIC - Voltage Regulators - Linear - LP3981IMM-3.03 | 3.03V 300mA 6V LDO Voltage Regulator IC | Voltage Regulators - Linear, Low Drop Out (LDO) Regulators | LDO Voltage Regulators | Voltage Regulators - Linear | Voltage Regulators - Linear | PMIC - Voltage Regulators - Linear | Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - Linear |
| Output Voltage Type | Fixed | Fixed; Fixed | Fixed | Fixed | Fixed; Fixed | Fixed; Fixed | |||
| Package Type | Other; VSSOP,WSON | SSOP; Other; 8-VSSOP | Other; VSSOP | Other; "8-TSSOP, 8-MSOP (0.118"", 3.00mm Width)" | SSOP; Other; 8-TSSOP, 8-MSOP (0.118\", 3.00mm Width) | SSOP; Other; 8-TSSOP, 8-MSOP (0.118\", 3.00mm Width) | SSOP | ||
| Special Features | Input Overcurrent Protection; Thermal Shutdown Protection; Enable,Overcurrent Protection,Thermal Shutdown | Input Overcurrent Protection; Enable | Input Overcurrent Protection | Enable | |||||
| Output Voltage | 2.5 to 3.3 volts | 3.03 volts | 3.03 volts | 3.03 volts | 3.03 to ? volts | 3.03 to ? volts | 3.03 volts | ||
| IOUT | 0.3000 amps | 0.3000 amps | 0.3000 amps | 0.3000 amps | 0.3000 amps | 0.3000 amps | 0.3000 amps | 0.3000 amps |
