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TPS62135

ACTIVO

Convertidor reductor de 3 V a 17 V y 4.0 A con precisión del 1 % y PFM/PWM forzado en QFN de 2 × 3

Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 4 Vin (max) (V) 17 Vin (min) (V) 3 Vout (max) (V) 12 Vout (min) (V) 0.8 Features Enable, Light Load Efficiency, Output discharge, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO Fixed, VID Interface Control mode Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000018 Duty cycle (max) (%) 100 Sector Test & measurement
Rating Catalog Topology Buck Iout (max) (A) 4 Vin (max) (V) 17 Vin (min) (V) 3 Vout (max) (V) 12 Vout (min) (V) 0.8 Features Enable, Light Load Efficiency, Output discharge, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO Fixed, VID Interface Control mode Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000018 Duty cycle (max) (%) 100 Sector Test & measurement
VQFN-HR (RGX) 11 6 mm² (3 mm × 2 mm)
  • Output Voltage Accuracy ± 1% (PWM mode)
  • Input Voltage Range: 3 V to 17 V
  • Quiescent Current 18 µA Typ
  • Output Voltage from 0.8 V to 12 V
  • Adjustable Soft-Start
  • Forced PWM or PWM/PFM operation
  • Typical switching frequency of 2.5MHz in forced PWM
  • Precise ENABLE input allows
    • User-Defined Undervoltage Lockout
    • Exact Sequencing
  • 100% Duty Cycle Mode
  • Automatic Efficiency Enhancement AEE™
  • DCS-Control™ Topology
  • Available with Active Output Discharge
  • Optional HICCUP Overcurrent Protection
  • Power Good Output
  • Available in 3-mm x 2-mm VQFN Package
  • Output Voltage Accuracy ± 1% (PWM mode)
  • Input Voltage Range: 3 V to 17 V
  • Quiescent Current 18 µA Typ
  • Output Voltage from 0.8 V to 12 V
  • Adjustable Soft-Start
  • Forced PWM or PWM/PFM operation
  • Typical switching frequency of 2.5MHz in forced PWM
  • Precise ENABLE input allows
    • User-Defined Undervoltage Lockout
    • Exact Sequencing
  • 100% Duty Cycle Mode
  • Automatic Efficiency Enhancement AEE™
  • DCS-Control™ Topology
  • Available with Active Output Discharge
  • Optional HICCUP Overcurrent Protection
  • Power Good Output
  • Available in 3-mm x 2-mm VQFN Package

The TPS62135 and TPS621351 are high efficiency and easy to use synchronous step-down DC-DC converters, based on the DCS-Control™ Topology. The devices wide input voltage range of 3-V to 17-V makes it suitable for multi-cell Li-Ion as well as 12-V intermediate supply rails. The devices provide 4-A continuous output current. The TPS62135 automatically enters Power Save Mode at light loads to maintain high efficiency across the whole load range. With that, the device is well suited for applications that require connected standby performance, like ultra low power computers. With the MODE pin set to low, the switching frequency of the device is adapted automatically based on the input and output voltage. This technique is called Automatic Efficiency Enhancement (AEE™) and maintains high conversion efficiency over the whole operation range. It provides a 1% output voltage accuracy in PWM mode and therefore enables the design of a power supply with high output voltage accuracy.

The device has a typical quiescent current of 18 µA. In shutdown mode the current is typically 1 µA and the output is actively discharged for TPS62135 while the output voltage discharge feature is disabled in TPS621351.

The TPS62135 is available as an adjustable version, packaged in a 3-mm x 2-mm VQFN package.

The TPS62135 and TPS621351 are high efficiency and easy to use synchronous step-down DC-DC converters, based on the DCS-Control™ Topology. The devices wide input voltage range of 3-V to 17-V makes it suitable for multi-cell Li-Ion as well as 12-V intermediate supply rails. The devices provide 4-A continuous output current. The TPS62135 automatically enters Power Save Mode at light loads to maintain high efficiency across the whole load range. With that, the device is well suited for applications that require connected standby performance, like ultra low power computers. With the MODE pin set to low, the switching frequency of the device is adapted automatically based on the input and output voltage. This technique is called Automatic Efficiency Enhancement (AEE™) and maintains high conversion efficiency over the whole operation range. It provides a 1% output voltage accuracy in PWM mode and therefore enables the design of a power supply with high output voltage accuracy.

The device has a typical quiescent current of 18 µA. In shutdown mode the current is typically 1 µA and the output is actively discharged for TPS62135 while the output voltage discharge feature is disabled in TPS621351.

The TPS62135 is available as an adjustable version, packaged in a 3-mm x 2-mm VQFN package.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPS62135, TPS621351 High Accuracy 3-V to 17-V 4-A Step-Down Converters with DCS-Control datasheet (Rev. B) PDF | HTML 4/04/2017
Nota sobre la aplicación QFN and SON PCB Attachment (Rev. C) PDF | HTML 6/12/2023
Nota sobre la aplicación Using the TPS6215x in an Inverting Buck-Boost Topology.. (Rev. D) PDF | HTML 23/01/2023
Nota sobre la aplicación Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 23/05/2022
Nota sobre la aplicación Point-of-Load Solutions for Network Interface Cards (NIC) PDF | HTML 8/09/2021
Guía de selección Buck Converter Quick Reference Guide (Rev. B) 8/04/2021
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 14/06/2019
Nota sobre la aplicación Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11/12/2018
Nota sobre la aplicación Solve Point-of-Load Power Design Challenges: Single Board Computer Applications 24/08/2018
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22/06/2018
Artículo técnico Output accuracy varies with temperature – 1% is not always 1% PDF | HTML 2/05/2018
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 24/10/2017
Nota sobre la aplicación Feedforward Capacitor to Improve Stability and Bandwidth of TPS621/821-Family (Rev. A) 28/06/2017
Nota sobre la aplicación Step-Down LED Driver With Dimming With the TPS621-Family and TPS821-Family (Rev. A) 28/06/2017
Nota sobre la aplicación Sequencing and Tracking With the TPS621-Family and TPS821-Family (Rev. A) 28/06/2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 24/10/2016
Analog Design Journal Understanding frequency variation in the DCS-Control(TM) topology 30/10/2015
Nota sobre la aplicación Basic Calculation of a Buck Converter's Power Stage (Rev. B) PDF | HTML 17/08/2015
Analog Design Journal Five steps to a great PCB layout for a step-down converter 29/01/2015
Nota sobre la aplicación Using the TPS62150 in a Split Rail Topology 26/03/2014
Analog Design Journal High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions 25/07/2013
Nota sobre la aplicación How to Measure the Control Loop of DCS-Control Devices (Rev. A) 9/08/2012
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26/04/2012
Nota sobre la aplicación Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 13/01/2012
Nota sobre la aplicación Voltage Margining Using the TPS62130 15/12/2011
Nota sobre la aplicación Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 19/09/2011
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17/06/2011

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.

Placa de evaluación

TPS62135EVM-698 — Módulo de evaluación para convertidor reductor TPS62135 con entrada de 17 V y salida de 4 A

El TPS62135EVM-698 está diseñado para ayudar al usuario a evaluar y probar de forma sencilla el funcionamiento y las prestaciones del TPS62135. El EVM convierte una tensión de entrada de 3 V a 17 V en una tensión de salida regulada de 3.3 V con una corriente de salida de hasta 4 A. El TPS62135 (...)
Guía del usuario: PDF | HTML
Productos y hardware compatibles
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Modelo de simulación

TPS62135 PSpice Transient Model (Rev. A)

SLVMBS7A.ZIP (47 KB) - Modelo PSpice
Productos y hardware compatibles
Modelo de simulación

TPS62135 SIMPLIS Transient and Average Model (Rev. A)

SLVMDF9A.ZIP (469 KB) - Modelo SIMPLIS
Productos y hardware compatibles
Modelo de simulación

TPS621351 PSpice Transient Model

SLVMBT6.ZIP (45 KB) - Modelo PSpice
Productos y hardware compatibles
Herramienta de cálculo

SLVC780 — Design Tool for Output Voltage Adjustment Using a DAC

Calculator tool to adjust the power supply's output voltage with an analog input voltage
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN-HR (RGX) 11 Ultra Librarian

Pedidos y calidad

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Soporte y capacitación

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