Inicio Gestión de la energía Reguladores lineales y de baja salida (LDO)
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Gestión de la energía
Reguladores lineales y de baja salida (LDO)

TPS74801

ACTIVO

Regulador de tensión ajustable de caída baja (LDO) de 1.5 A y bajo VIN (0.8 V) con buena potencia y

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TPS748A ACTIVO Regulador de tensión ajustable de caída baja (LDO) de 1.5 A y 0.8 V con buena potencia y activación Improved accuracy and noise

TPS74801

ACTIVO
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Detalles del producto

Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 0.8 Vout (max) (V) 3.6 Vout (min) (V) 0.8 Noise (µVrms) 20 Iq (typ) (mA) 1 Thermal resistance θJA (°C/W) 36 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Power good, Soft start Accuracy (%) 2 PSRR at 100 KHz (dB) 28 Dropout voltage (Vdo) (typ) (mV) 60 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 0.8 Vout (max) (V) 3.6 Vout (min) (V) 0.8 Noise (µVrms) 20 Iq (typ) (mA) 1 Thermal resistance θJA (°C/W) 36 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Power good, Soft start Accuracy (%) 2 PSRR at 100 KHz (dB) 28 Dropout voltage (Vdo) (typ) (mV) 60 Operating temperature range (°C) -40 to 125
VQFN (RGW) 20 25 mm² 5 x 5 VSON (DRC) 10 9 mm² 3 x 3
  • V OUT range: 0.8 V to 3.6 V
  • Ultra-low V IN range: 0.8 V to 5.5 V
  • V BIAS range 2.7 V to 5.5 V
  • Low dropout: 60 mV typical at 1.5 A, V BIAS = 5 V
  • Power good (PG) output allows supply monitoring or provides a sequencing signal for other supplies
  • 2% accuracy over line, load, and temperature
  • Programmable soft-start provides linear voltage start-up
  • V BIAS permits low V IN operation with good transient response
  • Stable with any output capacitor ≥ 2.2 µF
  • Available in small, 3-mm × 3-mm × 1-mm VSON-10 and 5-mm × 5-mm VQFN-20 packages
  • V OUT range: 0.8 V to 3.6 V
  • Ultra-low V IN range: 0.8 V to 5.5 V
  • V BIAS range 2.7 V to 5.5 V
  • Low dropout: 60 mV typical at 1.5 A, V BIAS = 5 V
  • Power good (PG) output allows supply monitoring or provides a sequencing signal for other supplies
  • 2% accuracy over line, load, and temperature
  • Programmable soft-start provides linear voltage start-up
  • V BIAS permits low V IN operation with good transient response
  • Stable with any output capacitor ≥ 2.2 µF
  • Available in small, 3-mm × 3-mm × 1-mm VSON-10 and 5-mm × 5-mm VQFN-20 packages

The TPS748 low-dropout (LDO) linear regulator provides an easy-to-use robust power management solution for a wide variety of applications. 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 designed for powering many different types of processors and ASICs. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility allows a solution to be configured that meets the sequencing requirements of FPGAs, DSPs, and other applications with special start-up requirements.

A precision reference and error amplifier deliver 2% accuracy over load, line, temperature, and process. The device is stable with any type of capacitor greater than or equal to 2.2 µF, and is fully specified for T J = –40°C to +125°C. The TPS748 is offered in a small, 3-mm × 3-mm, VSON-10 package, yielding a highly compact, total solution size. The device is also available in a 5-mm × 5-mm VQFN-20 package for compatibility with the TPS744.

The TPS748 low-dropout (LDO) linear regulator provides an easy-to-use robust power management solution for a wide variety of applications. 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 designed for powering many different types of processors and ASICs. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility allows a solution to be configured that meets the sequencing requirements of FPGAs, DSPs, and other applications with special start-up requirements.

A precision reference and error amplifier deliver 2% accuracy over load, line, temperature, and process. The device is stable with any type of capacitor greater than or equal to 2.2 µF, and is fully specified for T J = –40°C to +125°C. The TPS748 is offered in a small, 3-mm × 3-mm, VSON-10 package, yielding a highly compact, total solution size. The device is also available in a 5-mm × 5-mm VQFN-20 package for compatibility with the TPS744.
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Documentación técnica

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* Data sheet TPS748 1.5-A, Low-Dropout Linear Regulator With Programmable Soft-Start datasheet (Rev. M) PDF | HTML 24 abr 2023
EVM User's guide TPS74701EVM-177, TPS74801EVM-177 Evaluation Module (Rev. B) PDF | HTML 08 may 2023
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 ago 2020
Application note Point-of-Load Solutions for Data Center App Implementing VR13.HC Vccin Spec (Rev. A) PDF | HTML 08 ene 2020
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 jun 2019
Application note Extracting a Lumped Output Impedance Model With SIMPLIS or SiMetrix 11 jun 2018
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 21 mar 2018
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 ago 2017
Application note Power Solution using LDO's (Rev. A) 25 mar 2010
Application note Simple Power Solution Using LDOs for the DM365 (Rev. A) 11 sep 2009
Application note Simple Power Solution Using LDOs for the DM365 04 ago 2009
Application note Simple Power Solution Using LDOs For TMS320C2834x MCU 24 jul 2009
Analog Design Journal Q3 2007 Issue Analog Applications Journal 10 ago 2007
Analog Design Journal Simultaneous power-down sequencing with the TPS74x01 family of linear regulators 10 ago 2007

Diseño y desarrollo

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Placa de evaluación

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The TPS74801EVM-177 evaluation module (EVM) is a platform for evaluating the TPS74801 low-dropout (LDO) linear regulator.

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Modelo de simulación

TPS74801 PSpice Transient Model (Rev. B)

SLIM032B.ZIP (58 KB) - PSpice Model
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Modelo de simulación

TPS74801 TINA-TI Transient Reference Design

SLIM255.TSC (94 KB) - TINA-TI Reference Design
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Modelo de simulación

TPS74801 TINA-TI Transient Spice Model

SLIM254.ZIP (34 KB) - TINA-TI Spice Model
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Modelo de simulación

TPS74801 Unencrypted PSpice Transient Model

SBVM633.ZIP (3 KB) - PSpice Model
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Esquema

12Vin Power Design (Rev. A)

SLVR334A.PDF (253 KB)
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Diseños de referencia

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Design guide: PDF
Esquema: PDF
Paquete Pasadores Descargar
VQFN (RGW) 20 Ver opciones
VSON (DRC) 10 Ver opciones
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  • Monitoreo continuo de confiabilidad
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