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TPS62122

ACTIVO

Convertidor reductor de 15 V, 75 mA y eficiencia del 96 %

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TPS629203 ACTIVO Convertidor reductor síncrono de 3 V a 17 V, 0.3 A y bajo IQ en encapsulado SOT-583 Improved efficiency, smaller size and lower IQ.

TPS62122

ACTIVO
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Detalles del producto

Rating Catalog Topology Buck Iout (max) (A) 0.075 Vin (max) (V) 15 Vin (min) (V) 2 Vout (max) (V) 5.5 Vout (min) (V) 1.2 Features Enable, Light-load efficiency, Synchronous rectification Control mode Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000011 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 0.075 Vin (max) (V) 15 Vin (min) (V) 2 Vout (max) (V) 5.5 Vout (min) (V) 1.2 Features Enable, Light-load efficiency, Synchronous rectification Control mode Constant on-time (COT), DCS-Control Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000011 Duty cycle (max) (%) 100
WSON (DRV) 6 4 mm² (2 mm × 2 mm)
  • Wide Input Voltage Range: 2 V to 15 V
  • Up to 96% Efficiency
  • Power Save Mode With 11-µA Quiescent Current
  • Output Current 75 mA
  • Output Voltage Range: 1.2 V to 5.5 V
  • Up to 800-kHz Switch Frequency
  • Synchronous Converter, No External Rectifier
  • Low Output Ripple Voltage
  • 100% Duty Cycle for Lowest Dropout
  • Small SOT 8-Pin (TPS62120) and 2-mm × 2-mm
    DFN 6-Pin (TPS62122) Package
  • Internal Soft Start
  • Power Good Open Drain Output (TPS62120)
  • Open-Drain Output for Output Discharge
    (TPS62120)
  • 2.5-V Rising and 1.85-V Falling UVLO Thresholds
  • Wide Input Voltage Range: 2 V to 15 V
  • Up to 96% Efficiency
  • Power Save Mode With 11-µA Quiescent Current
  • Output Current 75 mA
  • Output Voltage Range: 1.2 V to 5.5 V
  • Up to 800-kHz Switch Frequency
  • Synchronous Converter, No External Rectifier
  • Low Output Ripple Voltage
  • 100% Duty Cycle for Lowest Dropout
  • Small SOT 8-Pin (TPS62120) and 2-mm × 2-mm
    DFN 6-Pin (TPS62122) Package
  • Internal Soft Start
  • Power Good Open Drain Output (TPS62120)
  • Open-Drain Output for Output Discharge
    (TPS62120)
  • 2.5-V Rising and 1.85-V Falling UVLO Thresholds

The TPS6212x device is a highly efficient synchronous step-down DC-DC converter optimized for low-power applications. The device supports up to 75-mA output current and allows the use of tiny external inductors and capacitors.

The wide operating input voltage range of 2 V to 15 V supports energy harvesting, battery powered and as well 9-V or 12-V line powered applications.

With its advanced hysteretic control scheme, the converter provides power save mode operation. At light loads the converter operates in pulse frequency modulation (PFM) mode and transitions automatically in pulse width modulation (PWM) mode at higher load currents. The power save mode maintains high efficiency over the entire load current range. The hysteretic control scheme is optimized for low output ripple voltage in PFM mode in order to reduce output noise to a minimum. The device consumes only 10-µA quiescent current from VIN in PFM mode operation.

In shutdown mode, the device is turned off.

An open-drain power good output is available in the TPS62120 and indicates once the output voltage is in regulation.

The TPS62120 has an additional SGND pin which is connected to GND during shutdown mode. This output can be used to discharge the output capacitor.

The TPS6212x operates over an free air temperature range of –40°C to 85°C. The TPS62120 is available in a small 8-pin SOT-23 package and the TPS62122 in a 2 mm × 2 mm 6-pin DFN package.

The TPS6212x device is a highly efficient synchronous step-down DC-DC converter optimized for low-power applications. The device supports up to 75-mA output current and allows the use of tiny external inductors and capacitors.

The wide operating input voltage range of 2 V to 15 V supports energy harvesting, battery powered and as well 9-V or 12-V line powered applications.

With its advanced hysteretic control scheme, the converter provides power save mode operation. At light loads the converter operates in pulse frequency modulation (PFM) mode and transitions automatically in pulse width modulation (PWM) mode at higher load currents. The power save mode maintains high efficiency over the entire load current range. The hysteretic control scheme is optimized for low output ripple voltage in PFM mode in order to reduce output noise to a minimum. The device consumes only 10-µA quiescent current from VIN in PFM mode operation.

In shutdown mode, the device is turned off.

An open-drain power good output is available in the TPS62120 and indicates once the output voltage is in regulation.

The TPS62120 has an additional SGND pin which is connected to GND during shutdown mode. This output can be used to discharge the output capacitor.

The TPS6212x operates over an free air temperature range of –40°C to 85°C. The TPS62120 is available in a small 8-pin SOT-23 package and the TPS62122 in a 2 mm × 2 mm 6-pin DFN package.
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Productos similares que pueden interesarle

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Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
TPS62120 ACTIVO Convertidor reductor de 15 V, 75 mA y eficiencia del 96 % con DCS-Control Same product with PG pin in a different package.

Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPS6212x 15-V, 75-mA Highly Efficient Buck Converter datasheet (Rev. A) PDF | HTML 31/07/2015
Nota sobre la aplicación QFN and SON PCB Attachment (Rev. C) PDF | HTML 6/12/2023
Nota sobre la aplicación Using the TPS62120 in an Inverting Buck-Boost Topology (Rev. C) PDF | HTML 29/11/2022
Nota sobre la aplicación Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 23/05/2022
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
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22/06/2018
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 Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 15/06/2017
Artículo técnico Cutting the last wire to unleash Industry 4.0 PDF | HTML 27/10/2016
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
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 Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C) 12/01/2012
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

TPS62122EVM-586 — Módulo de evaluación TPS62122

The TPS62122EVM-586 is a fully assembled and tested platform for evaluating the operation and performance of the TPS62122 converter. The TPS62122EVM-586 has an input voltage range from 2.0 V up to 15 V, and the output voltage is adjustable with an external feedback divider network in the range of (...)

Guía del usuario: PDF
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Modelo de simulación

TPS62122 PSpice Unencrypted Transient Model (Rev. B)

SLIM217B.ZIP (218 KB) - Modelo PSpice
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Modelo de simulación

TPS62122 TINA-TI Transient Reference Design

SLVM314.TSC (862 KB) - Diseño de referencia TINA-TI
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Modelo de simulación

TPS62122 TINA-TI Transient Spice Model

SLVM315.ZIP (44 KB) - Modelo TINA-TI Spice
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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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Diseño de referencia

TIDA-00690 — Diseño de referencia de alimentación de interruptor inalámbrico para captación de energía

El diseño de referencia TIDA-00690 ofrece una solución para el interruptor de recolección de energía. El interruptor, construido como un dinamo lineal, transforma la energía mecánica en energía eléctrica. Esta energía eléctrica se recolecta de manera excelente gracias al diseño TIDA-00690. El (...)
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WSON (DRV) 6 Ultra Librarian
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Pedidos y calidad

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Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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