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LP3996-Q1
  • LP3996-Q1
  • LP3996-Q1

LP3996-Q1

ACTIVE

Automotive 150-mA, low-IQ, dual-channel low-dropout voltage regulator with power good & enable

Texas Instruments LP3996-Q1 Product Info

1 April 2026 2

Parameters

Rating

Automotive

Vin (max) (V)

6

Vin (min) (V)

2

Iout (max) (A)

0.15

Output options

Dual output, Fixed Output

Vout (max) (V)

1.8

Vout (min) (V)

1.8

Fixed output options (V)

1.8, 3.3

Noise (µVrms)

36

PSRR at 100 KHz (dB)

35

Iq (typ) (mA)

0.035

Features

Enable, Power good

Thermal resistance θJA (°C/W)

55

Load capacitance (min) (µF)

1

Regulated outputs (#)

2

Accuracy (%)

3.75

Dropout voltage (Vdo) (typ) (mV)

210

Operating temperature range (°C)

-40 to 125

Package

WSON (DSC)-10-9 mm² 3 x 3

Features

  • 2 LDO Outputs with Independent Enable
  • 1.5% Accuracy at Room Temperature, 3% Over
    Temperature
  • Power-On-Reset Function with Adjustable
    Delay
  • Thermal Shutdown Protection
  • Stable with Ceramic Capacitors
  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance with the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • 2 LDO Outputs with Independent Enable
  • 1.5% Accuracy at Room Temperature, 3% Over
    Temperature
  • Power-On-Reset Function with Adjustable
    Delay
  • Thermal Shutdown Protection
  • Stable with Ceramic Capacitors
  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance with the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B

Description

The LP3996-Q1 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-Q1 provides 1.5% accuracy requiring an ultra low quiescent current of 35 µA. Separate enable pins allow each output of the LP3996-Q1 to be shut down, drawing virtually zero current.

The device 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-Q1 is available in fixed output voltages and comes in a 10-pin, 3 mm × 3 mm package.

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