TPS62135

Name: TPS62135
Brand: TI
SKU: TPS62135
Price: 0.763 USD

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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

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document-pdfAcrobat TPS62135, TPS621351 High Accuracy 3-V to 17-V 4-A Step-Down Converters with DCS-Control datasheet (Rev. B) (Inglés) PDF | HTML

TPS62135

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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

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

VQFN-HR (RGX)

11

6 mm² 3 x 2

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	Fecha
*	Data sheet	TPS62135, TPS621351 High Accuracy 3-V to 17-V 4-A Step-Down Converters with DCS-Control datasheet (Rev. B)	PDF \| HTML	04 abr 2017
	Application note	QFN and SON PCB Attachment (Rev. C)	PDF \| HTML	06 dic 2023
	Application note	Using the TPS6215x in an Inverting Buck-Boost Topology.. (Rev. D)	PDF \| HTML	23 ene 2023
	Application note	Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B)	PDF \| HTML	23 may 2022
	Selection guide	Buck Converter Quick Reference Guide (Rev. B)		08 abr 2021
	Analog Design Journal	Methods of output-voltage adjustment for DC/DC converters		14 jun 2019
	Application note	Performing Accurate PFM Mode Efficiency Measurements (Rev. A)		11 dic 2018
	Application note	Solve Point-of-Load Power Design Challenges: Single Board Computer Applications		24 ago 2018
	Analog Design Journal	Understanding 100% mode in low-power DC/DC converters		22 jun 2018
	Technical article	Output accuracy varies with temperature – 1% is not always 1%	PDF \| HTML	02 may 2018
	Analog Design Journal	Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold		24 oct 2017
	Application note	Feedforward Capacitor to Improve Stability and Bandwidth of TPS621/821-Family (Rev. A)		28 jun 2017
	Application note	Sequencing and Tracking With the TPS621-Family and TPS821-Family (Rev. A)		28 jun 2017
	Application note	Step-Down LED Driver With Dimming With the TPS621-Family and TPS821-Family (Rev. A)		28 jun 2017
	Analog Design Journal	Testing tips for applying external power to supply outputs without an input voltage		24 oct 2016
	Analog Design Journal	Understanding frequency variation in the DCS-Control(TM) topology		30 oct 2015
	Application note	Basic Calculation of a Buck Converter's Power Stage (Rev. B)		17 ago 2015
	Analog Design Journal	Five steps to a great PCB layout for a step-down converter		29 ene 2015
	Application note	Using the TPS62150 in a Split Rail Topology		26 mar 2014
	Analog Design Journal	High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions		25 jul 2013
	Application note	How to Measure the Control Loop of DCS-Control Devices (Rev. A)		09 ago 2012
	Analog Design Journal	Design considerations for a resistive feedback divider in a DC/DC converter		26 abr 2012
	Application note	Understanding the Absolute Maximum Ratings of the SW Node (Rev. A)		13 ene 2012
	Application note	Voltage Margining Using the TPS62130		15 dic 2011
	Application note	Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs		19 sep 2011
	Analog Design Journal	IQ: What it is, what it isn’t, and how to use it		17 jun 2011

Diseño y desarrollo

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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 (...)

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