TPS786

ACTIVE

1.5-A, low-dropout voltage regulator with enable

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TPS7A52 ACTIVE 2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator Alternative product offering much lower noise performance in smaller enhanced QFN package

Product details

Output options Adjustable Output, Fixed Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 2.7 Vout (max) (V) 5.2 Vout (min) (V) 1.22 Fixed output options (V) 1.8, 2.5, 2.8, 3, 3.3 Noise (µVrms) 48 Iq (typ) (mA) 0.26 Thermal resistance θJA (°C/W) 41 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Soft start Accuracy (%) 2 PSRR at 100 KHz (dB) 32 Dropout voltage (Vdo) (typ) (mV) 390 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 2.7 Vout (max) (V) 5.2 Vout (min) (V) 1.22 Fixed output options (V) 1.8, 2.5, 2.8, 3, 3.3 Noise (µVrms) 48 Iq (typ) (mA) 0.26 Thermal resistance θJA (°C/W) 41 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Soft start Accuracy (%) 2 PSRR at 100 KHz (dB) 32 Dropout voltage (Vdo) (typ) (mV) 390 Operating temperature range (°C) -40 to 125
SOT-223 (DCQ) 6 45.89 mm² 6.5 x 7.06 TO-263 (KTT) 5 154.8384 mm² 10.16 x 15.24 VSON (DRB) 8 9 mm² 3 x 3
  • 1.5-A Low-Dropout Regulator With Enable
  • Available in Fixed and Adjustable (1.2 V to 5.5 V)
    Output Versions
  • High PSRR (49 dB at 10 kHz)
  • Ultralow Noise (48 µVRMS, TPS78630)
  • Fast Start-Up Time (50 µs)
  • Stable With a 1-µF Ceramic Capacitor
  • Excellent Load and Line Transient Response
  • Very Low Dropout Voltage (390 mV at Full Load,
    TPS78630)
  • 3 × 3 SON PowerPAD, 6-Pin SOT223 and 5-Pin
    DDPAK Package
  • APPLICATIONS
    • RF: VCOs, Receivers, ADCs
    • Audio
    • Bluetooth®, Wireless LAN
    • Cellular and Cordless Telephones
    • Handheld Organizers, PDAs

Bluetooth Is a trademark of Texas Instruments,

  • 1.5-A Low-Dropout Regulator With Enable
  • Available in Fixed and Adjustable (1.2 V to 5.5 V)
    Output Versions
  • High PSRR (49 dB at 10 kHz)
  • Ultralow Noise (48 µVRMS, TPS78630)
  • Fast Start-Up Time (50 µs)
  • Stable With a 1-µF Ceramic Capacitor
  • Excellent Load and Line Transient Response
  • Very Low Dropout Voltage (390 mV at Full Load,
    TPS78630)
  • 3 × 3 SON PowerPAD, 6-Pin SOT223 and 5-Pin
    DDPAK Package
  • APPLICATIONS
    • RF: VCOs, Receivers, ADCs
    • Audio
    • Bluetooth®, Wireless LAN
    • Cellular and Cordless Telephones
    • Handheld Organizers, PDAs

Bluetooth Is a trademark of Texas Instruments,

The TPS786 family of low-dropout (LDO) low-power linear voltage regulators features high power-supply rejection ratio (PSRR), ultralow noise, fast start-up, and excellent line and load transient responses in small outline, SOT223-6 and DDPAK-5 packages. Each device in the family is stable, with a small 1-µF ceramic capacitor on the output. The family uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (for example, 390 mV at 1.5 A). Each device achieves fast start-up times (approximately 50 µs with a 0.001-µF bypass capacitor) while consuming very low quiescent current (265 µA, typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 µA. The TPS78630 exhibits approximately 48 µVRMS of output voltage at 3-V output noise with a 0.1-µF bypass capacitor. Applications with analog components that are noise sensitive, such as portable RF electronics, benefit from the high PSRR, low noise features, and the fast response time.

The TPS786 family of low-dropout (LDO) low-power linear voltage regulators features high power-supply rejection ratio (PSRR), ultralow noise, fast start-up, and excellent line and load transient responses in small outline, SOT223-6 and DDPAK-5 packages. Each device in the family is stable, with a small 1-µF ceramic capacitor on the output. The family uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (for example, 390 mV at 1.5 A). Each device achieves fast start-up times (approximately 50 µs with a 0.001-µF bypass capacitor) while consuming very low quiescent current (265 µA, typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 µA. The TPS78630 exhibits approximately 48 µVRMS of output voltage at 3-V output noise with a 0.1-µF bypass capacitor. Applications with analog components that are noise sensitive, such as portable RF electronics, benefit from the high PSRR, low noise features, and the fast response time.

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Technical documentation

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Type Title Date
* Data sheet TPS786 Ultralow-Noise, High-PSRR, Fast, RF, 1.5-A Low-Dropout Linear Regulators datasheet (Rev. M) PDF | HTML 30 Sep 2015
White paper Parallel LDO Architecture Design Using Ballast Resistors PDF | HTML 14 Dec 2022
White paper Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast PDF | HTML 13 Dec 2022
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 Aug 2020
Application note Using Thermal Calculation Tools for Analog Components (Rev. A) 30 Aug 2019
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 Aug 2017
EVM User's guide TPS786/795/79601DRB EVM Users Guide (Rev. A) 09 Sep 2016
User guide DEM-SOT223LDO Demonstration Fixture 15 Oct 2003
User guide DEM-TO263LDO Demonstration Fixture 15 Oct 2003
EVM User's guide 1.5 Amp, High PSRR, Low-Noise, Low Dropout Linear Regulator EVM 26 Sep 2002

Design & development

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

Evaluation board

DEM-SOT223LDO — DEM-SOT223LDO Compatible with Most Positive Output LDOs in SOT223 (DCQ) Package

The Texas Instruments DEM-SOT223LDO demonstration module (DEM) helps designers evaluate the operation and performance of Texas Instruments low-dropout regulators (LDOs).  This module is compatible with most positive output LDOs offered in the SOT223 (DCQ) package.

User guide: PDF
Not available on TI.com
Evaluation board

TPS78601DRBEVM — Evaluation Module for TPS78601 Single Output LDO

The TPS78601DRBEVM is a fully assembled and tested circuit for evaluating the TPS78601 low-dropout (LDO) low-power linear voltage regulator in the DRB (3 x 3mm, SON-8) package.
User guide: PDF
Not available on TI.com
Simulation model

TPS78601 PSpice Transient Model

SLVM603.ZIP (21 KB) - PSpice Model
Simulation model

TPS78618 PSpice Transient Model

SLVMAZ2.ZIP (70 KB) - PSpice Model
Simulation model

TPS78618 Unencrypted PSpice Transient Model

SLVMAZ1.ZIP (2 KB) - PSpice Model
Simulation model

TPS78625 PSpice Transient Model

SLVMAZ7.ZIP (70 KB) - PSpice Model
Simulation model

TPS78625 Unencrypted PSpice Transient Model

SLVMAZ8.ZIP (2 KB) - PSpice Model
Simulation model

TPS78628 PSpice Transient Model

SLVMAZ0.ZIP (69 KB) - PSpice Model
Simulation model

TPS78628 Unencrypted PSpice Transient Model

SLVMAY9.ZIP (2 KB) - PSpice Model
Simulation model

TPS78630 PSpice Transient Model

SLVMAZ3.ZIP (68 KB) - PSpice Model
Simulation model

TPS78630 Unencrypted PSpice Transient Model

SLVMAZ4.ZIP (2 KB) - PSpice Model
Simulation model

TPS78633 PSpice Transient Model

SLVMAZ5.ZIP (69 KB) - PSpice Model
Simulation model

TPS78633 Unencrypted PSpice Transient Model

SLVMAZ6.ZIP (2 KB) - PSpice Model
Reference designs

TIDEP0008 — PROFINET Communications Dev Platform

Targeted for PROFINET secondary communications, this reference design helps you implement PROFINET communications standards in a broad range of industrial automation equipment. It enables low-footprint designs in applications such as industrial automation, factory automation or (...)
User guide: PDF
Schematic: PDF
Reference designs

TIDEP0003 — Ethernet/IP Communications Dev Platform

Targeted for Ethernet/IP secondary communications, this development platform allows you to implement Ethernet/IP communication standards in a broad range of industrial automation equipment. It enables low footprint designs in applications such as industrial automation, factory automation or (...)
Schematic: PDF
Reference designs

TIDEP0002 — PROFIBUS Communications Development Platform

Targeted for PROFIBUS slave communications, this development platform allows designers to implement PROFIBUS communications standards in a broad range of industrial automation equipment. It enables low foot print designs in applications such as industrial automation, factory automation or (...)
Schematic: PDF
Package Pins Download
SOT-223 (DCQ) 6 View options
TO-263 (KTT) 5 View options
VSON (DRB) 8 View options

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