LP3981IMM-2.5/NOPB Part Information

Details for LP3981IMM-2.5/NOPB by Texas Instruments

Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators

Part Description

Performance of the LP3981 device is optimized for battery-powered systems to deliver ultra-low-noise, extremely low dropout voltage, and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life. Power supply rejection is better than 60 dB at low frequencies. This high power supply rejection is maintained down to lower input voltage levels common to battery-operated circuits. The device is ideal for mobile phone and similar battery-powered wireless applications. It provides up to 300 mA, from a 2.5-V to 6-V input, consuming less than 1 µA in disable mode. The LP3981 is available in 8-pin VSSOP-8 and 6-pin WSON packages. Performance is specified for −40°C to +125°C temperature range. The device available in the following output voltages: 2.5 V, 2.7 V, 2.8 V, 2.83 V, 3 V, 3.03 V and 3.3 V as standard. Other output options can be made available; contact your local TI sales office for more information.

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Part Features

  • 132-mV Typical Dropout with 300-mA Load
  • 2.5-V to 6-V Input Range
  • 300-mA Output Current
  • 35-u03bcVrms Output Noise Over 10 Hz to 100 kHz
  • 60-dB PSRR at 1 kHz
  • Fast Turnon Time: 120 u03bcs (typical) with CBYPASS = 0.01 u00b5F
  • Logic Controlled Enable
  • Low Thermal Resistance in WSON-6 Package
  • Stable With Ceramic and High-Quality Tantalum Capacitors
  • Thermal Shutdown and Short-Circuit Current Limit
  • u2264 1-u03bcA Quiescent Current When Shut Down

Part Specifications

Output Type Fixed
Input Voltage Min 2.5V
Input Voltage Max 6V
Fixed Output Voltage Nom. 2.5V
Adjustable Output Voltage Min -
Adjustable Output Voltage Max -
Output Current 300mA
Dropout Voltage Vdo 132mV
LDO Regulator Case Style VSSOP
No. of Pins 8Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range 2.5V 300mA LDO Voltage Regulators
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Accuracy % 2%
Base Number 3981
No. of Outputs 1Outputs
Operating Temperature Range -40°C to +125°C
Output Voltage Nom. 2.5V
Primary Input Voltage 6V
Termination Type Surface Mount Device
Voltage Regulator Type Ultra LDO Fixed Positive
RoHS Compliant

Alternative Part Descriptions

  • IC, LDO REG; Output Type:Fixed; Input Voltage Min:2.5V; Input Voltage Max:6V; Fixed Output Voltage Nom.:2.5V; Adjustable Output Voltage Min:-; Adjustable Output Voltage Max:-; Output Current:300mA; Dropout Voltage Vdo:132mV; LDO RoHS Compliant: Yes | Newark Electronics
  • 300-mA, high-accuracy, low-dropout voltage regulator with enable | Texas Instruments

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