Product details


Output options Fixed Output, Dual Output Iout (Max) (A) 0.15 Vin (Max) (V) 6 Vin (Min) (V) 2 Vout (Max) (V) 3.3 Vout (Min) (V) 0.8 Fixed output options (V) 0.8, 1, 1.5, 1.8, 2.5, 3, 3.3 Noise (uVrms) 36 Iq (Typ) (mA) 0.035 Thermal resistance θJA (°C/W) 55 Load capacitance (Min) (µF) 1 Rating Catalog Regulated outputs (#) 2 Features Enable, Power Good Accuracy (%) 2.75 PSRR @ 100 KHz (dB) 45 Dropout voltage (Vdo) (Typ) (mV) 210 Operating temperature range (C) -40 to 85 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

WSON (DSC) 10 9 mm² 3 x 3 open-in-new Find other Linear regulators (LDO)


  • 2 LDO Outputs with Independent Enable
  • 1.5% Accuracy at Room Temperature, 3% Over
  • Power-On-Reset Function with Adjustable
  • Thermal Shutdown Protection
  • Stable with Ceramic Capacitors


  • Input Voltage Range 2.0V to 6.0V
  • Low Dropout Voltage 210 mV at 300 mA
  • Ultra-Low IQ (Enabled) 35 µA
  • Virtually Zero IQ (Disabled) <10 nA
  • Package Available in Lead-Free Option
    10-pin 3 mm × 3 mm
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The LP3996 is a dual low dropout regulator with power-on-reset circuit. The first regulator can source 150 mA, while the second is capable of sourcing 300 mA and has a power-on-reset function included.

The LP3996 provides 1.5% accuracy requiring an ultra low quiescent current of 35 µA. Separate enable pins allow each output of the LP3996 to be shut down, drawing virtually zero current.

The LP3996 is designed to be stable with small footprint ceramic capacitors down to 1 µF. An external capacitor may be used to set the POR delay time as required.

The LP3996 is available in fixed output voltages and comes in a 10-pin, 3 mm × 3 mm package.

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Technical documentation

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Type Title Date
* Datasheet LP3996 Dual Linear Regulator with 300 mA and 150 mA Outputs and Power-On-Reset datasheet (Rev. D) Oct. 10, 2013
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
User guide AN-1377 LP3996 / LP5996 Application Board Information (Rev. B) Apr. 30, 2013
White paper Using Power to Improve Signal-Path Performance Aug. 01, 2006

Design & development

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WSON (DSC) 10 View options

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