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Linear & low-dropout (LDO) regulators

LP5900

ACTIVE

150-mA, low-noise, low-IQ, low-dropout voltage regulator with enable

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Data sheet

LP5900

ACTIVE
Data sheet Order now

Product details

Output options Fixed Output Iout (Max) (A) 0.15 Vin (Max) (V) 5.5 Vin (Min) (V) 2.5 Vout (Max) (V) 4.5 Vout (Min) (V) 1.5 Fixed output options (V) 1.5, 1.575, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.5, 2.6, 2.65, 2.7, 2.75, 2.8, 2.85, 3.0, 3.3, 4.5 Noise (uVrms) 6.5 Iq (Typ) (mA) 0.025 Thermal resistance θJA (°C/W) 80 Rating Catalog Load capacitance (Min) (µF) 0.47 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR @ 100 KHz (dB) 40 Dropout voltage (Vdo) (Typ) (mV) 80 Operating temperature range (C) -40 to 125
Output options Fixed Output Iout (Max) (A) 0.15 Vin (Max) (V) 5.5 Vin (Min) (V) 2.5 Vout (Max) (V) 4.5 Vout (Min) (V) 1.5 Fixed output options (V) 1.5, 1.575, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.5, 2.6, 2.65, 2.7, 2.75, 2.8, 2.85, 3.0, 3.3, 4.5 Noise (uVrms) 6.5 Iq (Typ) (mA) 0.025 Thermal resistance θJA (°C/W) 80 Rating Catalog Load capacitance (Min) (µF) 0.47 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR @ 100 KHz (dB) 40 Dropout voltage (Vdo) (Typ) (mV) 80 Operating temperature range (C) -40 to 125
DSBGA (YPF) 4 0 mm² 1.117 x 1.092 DSBGA (YZR) 4 2 mm² 1.117 x 1.092 WSON (NGF) 6 6 mm² 2.2 x 2.5
  • Input Voltage Range, 2.5 V to 5.5 V
  • Output Voltage Range, 1.5 V to 4.5 V
  • Stable with 0.47-μF Ceramic Input and Output Capacitors
  • No Noise Bypass Capacitor Required
  • Logic Controlled Enable
  • Thermal-Overload and Short-Circuit Protection
  • −40°C to 125°C Junction Temperature Range for Operation
  • Output Current, 150 mA
  • Low Output Voltage Noise, 6.5 μVRMS
  • PSRR, 75 dB at 1 kHz
  • Output Voltage Tolerance, ±2%
  • Virturally Zero IQ (Disabled), < 1 µA
  • Very Low IQ (Enabled), 25 μA
  • Start-up Time, 150 μs
  • Low Dropout, 80 mV Typ.
  • Input Voltage Range, 2.5 V to 5.5 V
  • Output Voltage Range, 1.5 V to 4.5 V
  • Stable with 0.47-μF Ceramic Input and Output Capacitors
  • No Noise Bypass Capacitor Required
  • Logic Controlled Enable
  • Thermal-Overload and Short-Circuit Protection
  • −40°C to 125°C Junction Temperature Range for Operation
  • Output Current, 150 mA
  • Low Output Voltage Noise, 6.5 μVRMS
  • PSRR, 75 dB at 1 kHz
  • Output Voltage Tolerance, ±2%
  • Virturally Zero IQ (Disabled), < 1 µA
  • Very Low IQ (Enabled), 25 μA
  • Start-up Time, 150 μs
  • Low Dropout, 80 mV Typ.

The LP5900 is an LDO capable of supplying 150-mA output current. Designed to meet the requirements of RF and analog circuits, the LP5900 device provides low noise, high PSRR, low quiescent current, and low line transient response figures. Using new innovative design techniques the LP5900 offers class-leading device noise performance without a noise bypass capacitor.

The device is designed to work with 0.47-μF input and output ceramic capacitors (no bypass capacitor required).

The device is available in a DSBGA (YZR) package and a WSON package; the device is also available in an extremely thin DSBGA (YPF) package. For all voltage and package options available today, see the Package Option Addendum (POA) at the end of this data sheet. For any other fixed output voltages from 1.5 V to 4.5 V in 25-mV steps and all other package options, contact your local TI Sales office.

For all available packages, see the orderable addendum at the end of the data sheet.

The LP5900 is an LDO capable of supplying 150-mA output current. Designed to meet the requirements of RF and analog circuits, the LP5900 device provides low noise, high PSRR, low quiescent current, and low line transient response figures. Using new innovative design techniques the LP5900 offers class-leading device noise performance without a noise bypass capacitor.

The device is designed to work with 0.47-μF input and output ceramic capacitors (no bypass capacitor required).

The device is available in a DSBGA (YZR) package and a WSON package; the device is also available in an extremely thin DSBGA (YPF) package. For all voltage and package options available today, see the Package Option Addendum (POA) at the end of this data sheet. For any other fixed output voltages from 1.5 V to 4.5 V in 25-mV steps and all other package options, contact your local TI Sales office.

For all available packages, see the orderable addendum at the end of the data sheet.
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Technical documentation

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Type Title Date
* Data sheet LP5900 150-mA Ultra-Low-Noise LDO for RF and Analog Circuits - Requires No Bypass Capacitor datasheet (Rev. R) 01 Jun 2016
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 21 Mar 2018
Technical article How LDOs contribute to power efficiency 13 May 2016
User guide AN-1494 LP5900SD 6 Pin WSON Evaluation Board Information (Rev. B) 30 Apr 2013
User guide AN-1396 LP5900 DSBGA Evaluation Board Information (Rev. C) 29 Apr 2013
Application note AN-2145 Power Considerations for SDI Products (Rev. B) 26 Apr 2013
Application note AN-2146 Power Design for SDI and Other Noise-Sensitive Devices (Rev. A) 26 Apr 2013
Application note AN-1950 Silently Powering Low Noise Applications (Rev. A) 22 Apr 2013
User guide High-IF Sub-sampling Receiver Subsystem User Guide 27 Jan 2012
User guide SP16130CH4RB Low IF Receiver Reference Design User Guide 27 Jan 2012
White paper Using Power to Improve Signal-Path Performance 01 Aug 2006

Design & development

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Simulation model

LP5900_2P8 PSpice Transient Model

SNVM635.ZIP (41 KB) - PSpice Model
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Simulation model

LP5900_1P5 PSpice Transient Model

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Simulation model

LP5900_3P3 PSpice Transient Model

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Simulation model

LP5900_3P0 Unencrypted PSpice Transient Model

SNVMAA4.ZIP (1 KB) - PSpice Model
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Simulation model

LP5900_1P5 Unencrypted PSpice Transient Model

SNVMAA5.ZIP (1 KB) - PSpice Model
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Simulation model

LP5900_2P8 Unencrypted PSpice Transient Model

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CAD/CAE symbol

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CAD/CAE symbol

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Package Pins Download
DSBGA (YPF) 4 View options
DSBGA (YZR) 4 View options
WSON (NGF) 6 View options

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