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Product details

Parameters

Output options Fixed 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, 1.2, 1.35, 1.5, 1.8, 2.5, 2.8, 3.3 Noise (uVrms) 150 Iq (Typ) (mA) 0.043 Thermal resistance θJA (°C/W) 54 Load capacitance (Min) (µF) 1 Rating Catalog Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR @ 100 KHz (dB) 35 Dropout voltage (Vdo) (Typ) (mV) 120 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

DSBGA (YZR) 4 2 mm² 1.054 x 1.333 SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 WSON (NGG) 6 9 mm² 3 x 3 open-in-new Find other Linear regulators (LDO)

Features

  • 1% Voltage Accuracy at Room Temperature
  • Stable with Ceramic Capacitor
  • Logic Controlled Enable
  • No Noise Bypass Capacitor Required
  • Thermal-Overload and Short-Circuit
    Protection
  • Input Voltage Range, 2 V to 6 V
  • Output Voltage Range, 0.8 V to 3.3 V
  • Output Current, 150 mA
  • Output Stable - Capacitors, 1 µF
  • Virtually Zero IQ (Disabled), < 10 nA
  • Very Low IQ (Enabled), 43 µA
  • Low Output Noise, 150 µVRMS
  • PSRR, 55 dB at 1 kHz
  • Fast Start-Up, 105 µs
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Description

The LP3990 regulator is designed to meet the requirements of portable, battery-powered systems providing an accurate output voltage, low-noise, and low-quiescent current. The LP3990 will provide a 0.8-V output from the low input voltage of 2 V at up to a 150-mA load current. When switched into shutdown mode via a logic signal at the enable pin (EN), the power consumption is reduced to virtually zero.

The LP3990 is designed to be stable with space-saving ceramic capacitors with values as low as 1 µF.

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

For output voltages other than 0.8 V, 1.2 V, 1.35 V, 1.5 V, 1.8 V, 2.5 V, 2.8 V, or 3.3 V, please contact the Texas Instruments sales office.

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Technical documentation

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No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet LP3990 150-mA Linear Voltage Regulator for Digital Applications datasheet (Rev. J) Sep. 26, 2014
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Technical articles LDO basics: noise – part 1 Jun. 14, 2017

Design & development

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

Design tools & simulation

SIMULATION MODELS Download
SNVMAX3.ZIP (69 KB) - PSpice Model
SIMULATION MODELS Download
SNVMAX4.ZIP (2 KB) - PSpice Model
SIMULATION MODELS Download
SNVMAX5.ZIP (2 KB) - PSpice Model
SIMULATION MODELS Download
SNVMAX6.ZIP (69 KB) - PSpice Model
SIMULATION MODELS Download
SNVMAX7.ZIP (2 KB) - PSpice Model
SIMULATION MODELS Download
SNVMAX8.ZIP (67 KB) - PSpice Model
SIMULATION MODELS Download
SNVMAX9.ZIP (2 KB) - PSpice Model
SIMULATION MODELS Download
SNVMAY0.ZIP (70 KB) - PSpice Model
SIMULATION MODELS Download
SNVMAY1.ZIP (2 KB) - PSpice Model
SIMULATION MODELS Download
SNVMAY2.ZIP (69 KB) - PSpice Model
SIMULATION MODELS Download
SNVMAY3.ZIP (70 KB) - PSpice Model
SIMULATION MODELS Download
SNVMAY4.ZIP (2 KB) - PSpice Model
SIMULATION MODELS Download
SNVMAY5.ZIP (71 KB) - PSpice Model
SIMULATION MODELS Download
SNVMAY6.ZIP (2 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
Xilinx Zynq 7000 Series 5W Small Efficient Low-Noise Power Solution Reference Design
TIDA-00574 The TIDA-00574 shows small solution size and high curren density & low noise power solution.  It supports internal sequencing and high output voltage accuracy.
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
DSBGA (YZR) 4 View options
SOT-23 (DBV) 5 View options
WSON (NGG) 6 View options

Ordering & quality

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