Product details


Output options Adjustable Output, Fixed Output Iout (Max) (A) 0.3 Vin (Max) (V) 6 Vin (Min) (V) 2.5 Vout (Max) (V) 3.3 Vout (Min) (V) 1.8 Fixed output options (V) 1.8, 2.5, 2.82, 3, 3.3 Noise (uVrms) 37 Iq (Typ) (mA) 0.09 Thermal resistance θJA (°C/W) 53 Load capacitance (Min) (µF) 2.2 Rating Catalog Regulated outputs (#) 1 Features Enable, Power Good Accuracy (%) 1 PSRR @ 100 KHz (dB) 20 Dropout voltage (Vdo) (Typ) (mV) 120 Operating temperature range (C) -40 to 85 open-in-new Find other Linear & low-dropout (LDO) regulators

Package | Pins | Size

VSSOP (DGK) 8 15 mm² 3 x 4.9 WSON (NGM) 8 8 mm² 2.5 x 3 open-in-new Find other Linear & low-dropout (LDO) regulators


  • 2.5-V to 6-V Input Range
  • MAX8860 Pin, Package, and Specification Compatible
  • 300-mA Output Current
  • 120-mV Typical Dropout at 300 mA
  • 90-µA Typical Quiescent Current
  • 1-nA Typical Shutdown Mode
  • 60-dB Typical PSRR
  • 120-µs Typical Turnon Time
  • Stable With Small Ceramic Output Capacitors
  • 37-µVRMS Output Voltage Noise
    (10 Hz to 100 kHz)
  • Overtemperature/Overcurrent Protection
  • ±2% Output Voltage Tolerance
  • Create a Custom Design Using the LP3982 With the WEBENCH® Power Designer
open-in-new Find other Linear & low-dropout (LDO) regulators


The LP3982 low-dropout (LDO) CMOS linear regulator is available in 1.8-V, 2.5-V, 2.82-V, 3-V,
3.3-V, and adjustable versions. They deliver 300 mA of output current. Packaged in an 8-pin VSSOP, the LP3982 is pin- and package-compatible with Maxim’s MAX8860. The LM3982 is also available in the small footprint WSON package.

The LP3982 suits battery-powered applications because of its shutdown mode (1 nA typical), low quiescent current (90 µA typical), and LDO voltage (120 mV typical). The low dropout voltage allows for more utilization of a battery’s available energy by operating closer to its end-of-life voltage. The LP3982 device’s PMOS output transistor consumes relatively no drive current compared to PNP LDO regulators.

This PMOS regulator is stable with small ceramic capacitive loads (2.2 µF typical).

These devices also include regulation fault detection, a bandgap voltage reference, constant current limiting, and thermal-overload protection.

open-in-new Find other Linear & low-dropout (LDO) regulators
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TPS745 ACTIVE 500-mA, low-IQ, high-accuracy, adjustable ultra-low-dropout voltage regulator with power good 500-mA LDO with Power-Good and enable in smaller package (2x2mm)
TPS7A20 ACTIVE 300-mA, ultra-low-noise, low-IQ, low-dropout (LDO) linear regulator with high PSRR 300-mA LDO with improved performance and smaller size for cost-sensitive solutions without Power-Good

Technical documentation

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Type Title Date
* Data sheet LP3982 Micropower, Ultra-Low-Dropout, Low-Noise, 300-mA CMOS Regulator datasheet (Rev. F) Apr. 25, 2017
Technical article Integrated power devices simplify FPGA and SoC designs Jan. 11, 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Reference designs

Dynamic Voltage Scaling Power Solution for MSP430 Devices With Single-Channel LDO Reference Design
TIDA-01172 — This reference design enables power savings for MSP430 FRAM devices or other systems that use a power-on hysteresis. TIDA-01172 uses an adjustable LDO and an RC-time delay to switch from a higher start-up voltage to the final low-power operating voltage.
document-generic Schematic

CAD/CAE symbols

Package Pins Download
VSSOP (DGK) 8 View options
WSON (NGM) 8 View options

Ordering & quality

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