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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 (uVrms) 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 @ 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 (uVrms) 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 @ 100 KHz (dB) 32 Dropout voltage (Vdo) (Typ) (mV) 390 Operating temperature range (C) -40 to 125
SOT-223 (DCQ) 6 46 mm² 6.5 x 7.06 TO-263 (KTT) 5 155 mm² 10.16 x 15.24 VSON (DRB) 8 9 mm² 3.0 x 3.0
  • 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) 30 Sep 2015
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021
Application note LDO Noise Demystified (Rev. B) 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) 09 Aug 2017
User 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
User 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.

In stock
Limit: 5
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.
In stock
Limit: 5
Simulation model

TPS78601 PSpice Transient Model

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

TPS78628 Unencrypted PSpice Transient Model

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

TPS78628 PSpice Transient Model

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

TPS78618 Unencrypted PSpice Transient Model

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

TPS78618 PSpice Transient Model

SLVMAZ2.ZIP (70 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
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
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Package Pins Download
DDPAK/TO-263 (KTT) 5 View options
SON (DRB) 8 View options
SOT-223 (DCQ) 6 View options

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