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LP5990
  • LP5990
  • LP5990
  • LP5990

LP5990

ACTIVE

200-mA, low-IQ, high-accuracy low-dropout voltage regulator with enable Package Package

Texas Instruments LP5990 Product Info

1 April 2026 2

Parameters

Rating

Catalog

Vin (max) (V)

5.5

Vin (min) (V)

2.2

Iout (max) (A)

0.2

Output options

Fixed Output

Vout (max) (V)

3.6

Vout (min) (V)

1.2

Fixed output options (V)

1.2, 1.3, 1.8, 2.8, 3, 3.3, 3.6

Noise (µVrms)

60

PSRR at 100 KHz (dB)

33

Iq (typ) (mA)

0.03

Features

Enable

Thermal resistance θJA (°C/W)

101

Load capacitance (min) (µF)

1

Regulated outputs (#)

1

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

160

Operating temperature range (°C)

-40 to 125

Package

DSBGA (YFQ)-4-1 mm² 1 x 1

Features

  • Operation from 2.2V to 5.5V input
  • ±1% accuracy over temp range
  • Output voltage from 0.8V to 3.6V in 50mV increments
  • 30 μA Quiescent current (enabled)
  • 10nA Quiescent current (disabled)
  • 160mV dropout at 200mA load
  • 60 μVRMSOutput voltage noise
  • 60 μs start-up time
  • 500μs shut-down time
  • PSRR 55 dB at 10 kHz
  • Stable with 0402 1.0µF ceramic capacitors
  • Logic controlled enable
  • Thermal–overload and short–circuit protection

    • Package

    4-Bump micro SMD,0.4mm pitch (lead free) 866 µm x 917 µm

  • Operation from 2.2V to 5.5V input
  • ±1% accuracy over temp range
  • Output voltage from 0.8V to 3.6V in 50mV increments
  • 30 μA Quiescent current (enabled)
  • 10nA Quiescent current (disabled)
  • 160mV dropout at 200mA load
  • 60 μVRMSOutput voltage noise
  • 60 μs start-up time
  • 500μs shut-down time
  • PSRR 55 dB at 10 kHz
  • Stable with 0402 1.0µF ceramic capacitors
  • Logic controlled enable
  • Thermal–overload and short–circuit protection

    • Package

    4-Bump micro SMD,0.4mm pitch (lead free) 866 µm x 917 µm

    Description

    The LP5990 regulator is designed to meet the requirements of portable, battery-powered systems providing an accurate output voltage, low noise and low quiescent current.

    The LP5990 will provide a 1.8V output from a low input voltage of 2.2V and can provide 200mA to an external load.

    When switched into shutdown mode via a logic signal at the enable pin, the power consumption is reduced to virtually

    zero.

    Fast shut-down is achieved by the push pull architecture.

    The LP5990 is designed to be stable with space saving 0402 ceramic capacitors as small as 1µF, this gives an overall solution size of < 2.5mm 2.

    Performance is specified for a -40°C to 125°C junction temperature range.

    The device is available in micro SMD Package (0.4mm pitch) and is available with 1.2V,1.3V,1.8V,2.8V,3.0V,3.3V and 3.6V outputs.Lower voltage options down to 0.8V are available on request. For all other output voltage options please contact your local NSC sales office.

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