Inicio Gestión de la energía Convertidores de CA/CC y CC/CC (FET integrado)
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Gestión de la energía
Convertidores de CA/CC y CC/CC (FET integrado)

TPS62743

ACTIVO

Convertidor reductor CC-CC con entrada de 2 V a 5.5 V y potencia ultrabaja de 300 mA a 400 mA con IQ

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Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
TPS62840 ACTIVO Convertidor reductor de 750 mA, alta eficiencia, tensión de entrada de 1.8 V a 6.5 V y corriente qui Lower Iq of 60 nA and more output voltage options
NUEVO TPS62843 ACTIVO Convertidor reductor de entrada de 1.8 V a 5.5 V, 600 mA y ultrabaja IQ Lower quiescent current alternative with more output voltage options

TPS62743

ACTIVO
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Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 0.3 Vin (min) (V) 2 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 1200 Switching frequency (max) (kHz) 1200 Features Adaptive/Dynamic Voltage Scaling, Enable, Light Load Efficiency, Light load efficiency, Output discharge, Synchronous Rectification Control mode Constant on-time (COT), DCS-Control Vout (min) (V) 1.2, 1.3 Vout (max) (V) 3.1, 3.3 Iq (typ) (A) 0.0000003
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 0.3 Vin (min) (V) 2 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 1200 Switching frequency (max) (kHz) 1200 Features Adaptive/Dynamic Voltage Scaling, Enable, Light Load Efficiency, Light load efficiency, Output discharge, Synchronous Rectification Control mode Constant on-time (COT), DCS-Control Vout (min) (V) 1.2, 1.3 Vout (max) (V) 3.1, 3.3 Iq (typ) (A) 0.0000003
DSBGA (YFP) 8 1.8 mm² 1 x 1.8
  • Input voltage range VIN from 2.15 V to 5.5 V
  • Input voltage range down to 2.0 V once started
  • output current
    • TPS62743 300 mA
    • TPS627431 400 mA
  • 360-nA operational quiescent current
  • Up to 90% efficiency at 10-µA output current
  • Power save mode operation
  • Selectable output voltages
    • Eight voltage options between 1.2 V to 3.3 V
  • Output voltage discharge
  • Low output voltage ripple
  • Automatic transition to no ripple 100% mode
  • RF friendly DCS-Control™
  • Total solution size < 10 mm2
  • Small 1.6-mm × 0.9-mm, 8-ball WCSP package
  • Input voltage range VIN from 2.15 V to 5.5 V
  • Input voltage range down to 2.0 V once started
  • output current
    • TPS62743 300 mA
    • TPS627431 400 mA
  • 360-nA operational quiescent current
  • Up to 90% efficiency at 10-µA output current
  • Power save mode operation
  • Selectable output voltages
    • Eight voltage options between 1.2 V to 3.3 V
  • Output voltage discharge
  • Low output voltage ripple
  • Automatic transition to no ripple 100% mode
  • RF friendly DCS-Control™
  • Total solution size < 10 mm2
  • Small 1.6-mm × 0.9-mm, 8-ball WCSP package

The TPS62743 is a high efficiency step down converter with ultra low quiescent current of typical 360 nA. The device is optimized to operate with a 2.2-µH inductor and 10µF output capacitor. The device uses DCS-Control™ and operates with a typical switching frequency of 1.2 MHz. In Power Save Mode the device extends the light load efficiency down to a load current range of 10-µA and below. TPS62743 provides an output current of 300 mA. Once started the device operates down to an input voltage range of 2.0 V. This allows to operate the device directly from a single Li-MnO2 coin cell.

The TPS62743 provides 8 programmable output voltages between 1.2V and 3.3V selectable by three selection pins. The TPS62743 is optimized to provide a low output voltage ripple and low noise using a small output capacitor. Once the input voltage comes close to the output voltage the device enters the No Ripple 100% mode to prevent an increase of output ripple voltage. In this operation mode the device stops switching and turns the high side MOSFET switch on.

The TPS62743 is a high efficiency step down converter with ultra low quiescent current of typical 360 nA. The device is optimized to operate with a 2.2-µH inductor and 10µF output capacitor. The device uses DCS-Control™ and operates with a typical switching frequency of 1.2 MHz. In Power Save Mode the device extends the light load efficiency down to a load current range of 10-µA and below. TPS62743 provides an output current of 300 mA. Once started the device operates down to an input voltage range of 2.0 V. This allows to operate the device directly from a single Li-MnO2 coin cell.

The TPS62743 provides 8 programmable output voltages between 1.2V and 3.3V selectable by three selection pins. The TPS62743 is optimized to provide a low output voltage ripple and low noise using a small output capacitor. Once the input voltage comes close to the output voltage the device enters the No Ripple 100% mode to prevent an increase of output ripple voltage. In this operation mode the device stops switching and turns the high side MOSFET switch on.
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Documentación técnica

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Tipo Título Fecha
* Data sheet TPS62743TPS627431300/400 mA High Efficiency Buck Converter with Ultra-low Quiescent Current datasheet (Rev. B) PDF | HTML 19 mar 2021
Technical article How to design wearables that are smaller and go longer between charges PDF | HTML 05 ene 2024
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
White paper Extending Battery Life in Smart E-Locks (Rev. A) 04 jun 2020
White paper Benefits of a Resistor-to-Digital Converter in Ultra-Low Power Supplies 14 oct 2019
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 14 jun 2019
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22 jun 2018
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 24 oct 2017
Technical article Never lose your luggage again with a smart tracker design PDF | HTML 20 oct 2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 24 oct 2016
Test report Power Management Reference Design for a Wearable Device with Wireless Charging (Rev. A) PDF | HTML 14 abr 2016
EVM User's guide TPS62743EVM-689 Evaluation Module User's Guide (Rev. A) 28 ene 2016
Analog Design Journal Understanding frequency variation in the DCS-Control(TM) topology 30 oct 2015

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

TPS62743EVM-689 — Módulo de evaluación TPS62743 de convertidor reductor con IQ ultrabajo

The TPS62743EVM-689 is designed to help the user easily evaluate and test the operation and functionality of the TPS62743. The EVM converts a 2.0-V to 5.5-V input voltage to a regulated output that is set between 1.2 V and 3.3 V at up to 300 mA. The TPS62743 comes in a small 1.6 x 0.9 mm² WCSP (...)

Guía del usuario: PDF
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Modelo de simulación

TPS62743 PSpice Unencrypted Transient Model (Rev. A)

SLVMAU9A.ZIP (101 KB) - PSpice Model
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Diseños de referencia

PMP11311 — Diseño de referencia de alimentación para un dispositivo portátil con carga inalámbrica utilizando e

Wearable devices require advanced power management to achieve long battery run times with always-on functionality.  Additionally, the devices need to use small rechargeable batteries and enable small footprint designs.  This application note shows the implementation of a scalable power (...)
Test report: PDF
Esquema: PDF
Diseños de referencia

PMP21055 — Diseño de referencia Boost+Buck de 0,8 V a 4,2 Vin a 3,3 V a 100 mA

The PMP21055 reference design converts a 0.8V to 4.2V input to a 3.3V/100mA output in a small form factor measuring 12mmx8mm. The design is built on a 2 layer, 1oz board and is a low-cost, small size design intended for battery powered applications. 
Test report: PDF
Esquema: PDF
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DSBGA (YFP) 8 Ver opciones
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Pedidos y calidad

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  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
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