Startseite Energiemanagement Linear- und Low-Dropout-Regler (LDO)
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Energiemanagement
Linear- und Low-Dropout-Regler (LDO)

TPS74401

AKTIV

Rauscharmer, einstellbarer Spannungsregler mit extrem niedrigem Dropout, 3 A, niedriger VIN (0,8 V),

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TPS74401

AKTIV
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Produktdetails

Output options Adjustable Output Iout (max) (A) 3 Vin (max) (V) 5.5 Vin (min) (V) 0.8 Vout (max) (V) 3.6 Vout (min) (V) 0.8 Noise (µVrms) 13 Iq (typ) (mA) 3 Thermal resistance θJA (°C/W) 27 Rating Catalog Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Features Enable, Power good, Soft start Accuracy (%) 1 PSRR at 100 KHz (dB) 50 Dropout voltage (Vdo) (typ) (mV) 115 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 3 Vin (max) (V) 5.5 Vin (min) (V) 0.8 Vout (max) (V) 3.6 Vout (min) (V) 0.8 Noise (µVrms) 13 Iq (typ) (mA) 3 Thermal resistance θJA (°C/W) 27 Rating Catalog Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Features Enable, Power good, Soft start Accuracy (%) 1 PSRR at 100 KHz (dB) 50 Dropout voltage (Vdo) (typ) (mV) 115 Operating temperature range (°C) -40 to 125
TO-263 (KTW) 7 153.924 mm² 10.1 x 15.24 VQFN (RGR) 20 12.25 mm² 3.5 x 3.5 VQFN (RGW) 20 25 mm² 5 x 5
  • Input Voltage Range: 1.1 V to 5.5 V
  • Soft-Start (SS) Pin Provides a Linear Startup With Ramp Time Set by External Capacitor
  • 1% Accuracy Over Line, Load, and Temperature
  • Supports Input Voltages as Low as 0.9 V With External Bias Supply
  • Adjustable Output: 0.8 V to 3.6 V
  • Ultra-Low Dropout: 115 mV at 3.0 A (typical)
  • Stable With Any or No Output Capacitor
  • Excellent Transient Response
  • Open-Drain Power-Good (VQFN Only)
  • Packages: 5-mm × 5-mm × 1-mm VQFN (RGW), 3.5-mm × 3.5-mm VQFN (RGR), and DDPAK
  • Input Voltage Range: 1.1 V to 5.5 V
  • Soft-Start (SS) Pin Provides a Linear Startup With Ramp Time Set by External Capacitor
  • 1% Accuracy Over Line, Load, and Temperature
  • Supports Input Voltages as Low as 0.9 V With External Bias Supply
  • Adjustable Output: 0.8 V to 3.6 V
  • Ultra-Low Dropout: 115 mV at 3.0 A (typical)
  • Stable With Any or No Output Capacitor
  • Excellent Transient Response
  • Open-Drain Power-Good (VQFN Only)
  • Packages: 5-mm × 5-mm × 1-mm VQFN (RGW), 3.5-mm × 3.5-mm VQFN (RGR), and DDPAK

The TPS74401 low-dropout (LDO) linear regulators provide an easy-to-use robust power-management solution for a wide variety of applications. The user-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and well-suited for powering many different types of processors and application-specific integrated circuits (ASICs). The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility lets the user configure a solution that meets the sequencing requirements of field-programmable gate arrays (FPGAs), digital signal processors (DSPs), and other applications with specific start-up requirements.

A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process. The TPS74401 family of LDOs is stable without an output capacitor or with ceramic output capacitors. The device family is fully specified from TJ = –40°C to 125°C. The TPS74401 is offered in two 20-pin small VQFN packages (a 5-mm × 5-mm RGW and a
3.5-mm × 3.5-mm RGR package), yielding a highly compact total solution size. For applications that require additional power dissipation, the DDPAK (KTW) package is also available.

The TPS74401 low-dropout (LDO) linear regulators provide an easy-to-use robust power-management solution for a wide variety of applications. The user-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and well-suited for powering many different types of processors and application-specific integrated circuits (ASICs). The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility lets the user configure a solution that meets the sequencing requirements of field-programmable gate arrays (FPGAs), digital signal processors (DSPs), and other applications with specific start-up requirements.

A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process. The TPS74401 family of LDOs is stable without an output capacitor or with ceramic output capacitors. The device family is fully specified from TJ = –40°C to 125°C. The TPS74401 is offered in two 20-pin small VQFN packages (a 5-mm × 5-mm RGW and a
3.5-mm × 3.5-mm RGR package), yielding a highly compact total solution size. For applications that require additional power dissipation, the DDPAK (KTW) package is also available.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet TPS74401 3.0-A, Ultra-LDO with Programmable Soft-Start datasheet (Rev. R) PDF | HTML 06 Apr 2016
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 A Topical Index of TI LDO Application Notes (Rev. F) 27 Jun 2019
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 21 Mär 2018
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 Aug 2017
Analog Design Journal 4Q 2012 Issue Analog Applications Journal 25 Sep 2012
Analog Design Journal LDO noise examined in detail 25 Sep 2012
Application note Power Solution Using Discrete DC/DC Converters and LDOs (Rev. B) 26 Aug 2010
Application note Power Ref Design for TMS320C6472, 12-Vin Digital Pwr Cntrlrs, and LDOs (Rev. A) 24 Mai 2010
Application note Pwr Ref Design f/'C6472 12-Vin Digital Pwr Controllers and LDOs 28 Apr 2010
Application note 'C6472 12Vin Flexible Pwr Design Using DCDC Controllers and LDOs (8x C6472) 26 Mär 2010
Application note Using New Thermal Metrics 15 Dez 2009
Analog Design Journal A 3-A, 1.2-Vout linear regulator with 80% efficiency and Plost < 1W 10 Okt 2006
EVM User's guide TPS74x01EVM-118 User's Guide 20 Jun 2006

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Gehäuse Pins Herunterladen
TO-263 (KTW) 7 Optionen anzeigen
VQFN (RGR) 20 Optionen anzeigen
VQFN (RGW) 20 Optionen anzeigen
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