Inicio Administración de potencia Reguladores lineales y de baja salida (LDO)

TL1963A

ACTIVO

Regulador de tensión de caída baja de 1.5 A y 20 V, con protección contra corriente inversa y tensió

Detalles del producto

Rating Catalog Vin (max) (V) 20 Vin (min) (V) 2.1 Iout (max) (A) 1.5 Output options Adjustable Output, Fixed Output Vout (max) (V) 20 Vout (min) (V) 1.2 Fixed output options (V) 1.5, 1.8, 2.5, 3.3, 20 Noise (µVrms) 40 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 1 Features Enable, Reverse Current Protection, Reverse voltage protection Thermal resistance θJA (°C/W) 33, 50.5, 57.9 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 340 Operating temperature range (°C) -40 to 125
Rating Catalog Vin (max) (V) 20 Vin (min) (V) 2.1 Iout (max) (A) 1.5 Output options Adjustable Output, Fixed Output Vout (max) (V) 20 Vout (min) (V) 1.2 Fixed output options (V) 1.5, 1.8, 2.5, 3.3, 20 Noise (µVrms) 40 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 1 Features Enable, Reverse Current Protection, Reverse voltage protection Thermal resistance θJA (°C/W) 33, 50.5, 57.9 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 340 Operating temperature range (°C) -40 to 125
SOT-223 (DCQ) 6 45.89 mm² 6.5 x 7.06 SOT-223 (DCY) 4 45.5 mm² 6.5 x 7 TO-263 (KTT) 5 154.8384 mm² 10.16 x 15.24
  • Input voltage range: 2.4V to 20V
  • Output voltage range (adjustable): 1.21V to 20V
  • Output voltage range (fixed):
    • Legacy chip: 1.5V, 1.8V, 2.5V and 3.3V
    • New chip: 1.8V, 3.3V
  • Output accuracy (over line, load and temperature):
    • Legacy chip: ±3% (all packages)
    • New chip:
      • +3%/-2% (DCY only)
      • ±1.5% (DCQ and KTT only)
  • Maximum output current (IOUT): Up to 1.5A
  • Dropout voltage: 340mV (typical) for IOUT = 1.5A
  • Output capacitor for stable operation: ≥ 10µF with ESR ≤ 3Ω
  • Low noise: 23µVRMS (10Hz to 100kHz) for VOUT = 1.21V
  • Integrated fault protection:
    • Reverse-current, thermal shutdown and overcurrent protection (both legacy and new chip)
    • Reverse-battery protection (legacy chip only)
  • Package:
    • 4-pin SOT-223 (DCY)
    • 6-pin SOT-223 (DCQ)
    • 5-pin DDPAK/TO-263 (KTT)
  • Input voltage range: 2.4V to 20V
  • Output voltage range (adjustable): 1.21V to 20V
  • Output voltage range (fixed):
    • Legacy chip: 1.5V, 1.8V, 2.5V and 3.3V
    • New chip: 1.8V, 3.3V
  • Output accuracy (over line, load and temperature):
    • Legacy chip: ±3% (all packages)
    • New chip:
      • +3%/-2% (DCY only)
      • ±1.5% (DCQ and KTT only)
  • Maximum output current (IOUT): Up to 1.5A
  • Dropout voltage: 340mV (typical) for IOUT = 1.5A
  • Output capacitor for stable operation: ≥ 10µF with ESR ≤ 3Ω
  • Low noise: 23µVRMS (10Hz to 100kHz) for VOUT = 1.21V
  • Integrated fault protection:
    • Reverse-current, thermal shutdown and overcurrent protection (both legacy and new chip)
    • Reverse-battery protection (legacy chip only)
  • Package:
    • 4-pin SOT-223 (DCY)
    • 6-pin SOT-223 (DCQ)
    • 5-pin DDPAK/TO-263 (KTT)

The TL1963A-xx regulators are low-dropout (LDO) regulators provides a robust, easy-to-use power management design for wide variety of applications. The device can supply 1.5A of output current with a dropout voltage of 340mV (typical) and supports wide output range (from 1.21V to 20V) in adjustable configuration. In addition, TL1963A-xx also supports tighter output accuracy ±1.5% across line, load and temperature (for DCQ, KTT package of new chip), fast transient response, and low output noise (23µVRMS in unity-gain adjustable configuration), making it an excellent choice for sensitive RF supply applications.

The TL1963A-xx regulators are stable with output capacitor as low as 10µF and supports ESR range up-to 3Ω. The TL1963A-xx (both legacy chip and new chip) has built-in protection mechanism for over-current, over-temperature (thermal shutdown) and reverse-current protection for reliable operation of the LDO and the legacy chip of TL1963A-xx also includes reverse-battery protection.

The TL1963A-xx is available in a 6.50mm × 7.0mm, 4-pin SOT-223 (DCY) [only fixed], 6.50mm × 7.06mm, 6-pin SOT-223 (DCQ) and 10.16mm × 15.24mm, 5-pin DDPAK/TO-263 (KTT) package for fixed and adjustable outputs.

The TL1963A-xx regulators are low-dropout (LDO) regulators provides a robust, easy-to-use power management design for wide variety of applications. The device can supply 1.5A of output current with a dropout voltage of 340mV (typical) and supports wide output range (from 1.21V to 20V) in adjustable configuration. In addition, TL1963A-xx also supports tighter output accuracy ±1.5% across line, load and temperature (for DCQ, KTT package of new chip), fast transient response, and low output noise (23µVRMS in unity-gain adjustable configuration), making it an excellent choice for sensitive RF supply applications.

The TL1963A-xx regulators are stable with output capacitor as low as 10µF and supports ESR range up-to 3Ω. The TL1963A-xx (both legacy chip and new chip) has built-in protection mechanism for over-current, over-temperature (thermal shutdown) and reverse-current protection for reliable operation of the LDO and the legacy chip of TL1963A-xx also includes reverse-battery protection.

The TL1963A-xx is available in a 6.50mm × 7.0mm, 4-pin SOT-223 (DCY) [only fixed], 6.50mm × 7.06mm, 6-pin SOT-223 (DCQ) and 10.16mm × 15.24mm, 5-pin DDPAK/TO-263 (KTT) package for fixed and adjustable outputs.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet TL1963A 1.5A Low-Noise Fast-Transient-Response Low-Dropout Regulator datasheet (Rev. H) PDF | HTML 24 jun 2026
Application note An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A) PDF | HTML 23 sep 2025
Application note Voltage Fed Full Bridge DC-DC & DC-AC Converter High-Freq Inverter Using C2000 (Rev. D) 07 abr 2021
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 ago 2020
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 jun 2019
E-book LDO Basics (Rev. A) 08 abr 2019
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 ago 2017
Technical article LDO basics: dropout PDF | HTML 16 mar 2017
Test report TI Power Reference Design for Xilinx® Kintex®-7 (KC705) (Rev. A) 16 dic 2014
Test report TI Power Reference Design for Xilinx® Artix®-7 (AC701) 12 may 2014
User guide PMP7977 User's Guide 11 sep 2013

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

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Placa de evaluación

TL1963A-18EVM — Módulo de evaluación TL1963A-18EVM

The TL1963A-18EVM facilitates evaluation of the TL1963A-18 1.5A Low-Noise Fast-Transient-Response Low-Dropout Regulator. The EVM allows the user to apply different input voltage levels (2.5V to 20V) and different loads (0 to 1.5A) and check the regulated output voltage for stability.

Guía del usuario: PDF
Placa de evaluación

TL1963A-33EVM — Módulo de evaluación TL1963A-33EVM

The TL1963A-33EVM facilitates evaluation of the TL1963A-33 1.5A Low-Noise Fast-Transient-Response Low-Dropout Regulator. The EVM allows the user to apply different input voltage levels (2.5V to 20V) and different loads (0 to 1.5A) and check the regulated output voltage for stability.

Guía del usuario: PDF
Placa de evaluación

TL1963AEVM — Módulo de evaluación TL1963AEVM

The TL1963AEVM facilitates evaluation of the TL1963A 1.5A Low-Noise Fast-Transient-Response Low-Dropout Regulator. The EVM allows the user to apply different input voltage levels (2.5V to 20V) and different loads (0 to 1.5A) and check the regulated output voltage for stability.

Guía del usuario: PDF
Modelo de simulación

TL1963A PSpice Transient Model

SLVMB45.ZIP (64 KB) - PSpice Model
Modelo de simulación

TL1963A Unencrypted PSpice Transient Model

SLVMB46.ZIP (1 KB) - PSpice Model
Disposición de la PCB

PMP7977 PCB

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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOT-223 (DCQ) 6 Ultra Librarian
SOT-223 (DCY) 4 Ultra Librarian
TO-263 (KTT) 5 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL)/reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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Soporte y capacitación

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