TPS62902

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Convertidor buck de 3 V a 17 V, 2 A, con alta eficiencia y baja IQ en encapsulado QFN de 1.5 mm ×

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Hoja de datos

document-pdfAcrobat TPS62902, 3-V to 17-V, High Efficiency and Low IQBuck Converter in 1.5-mm × 2-mm QFN Package datasheet (Rev. A) (Inglés) PDF | HTML

TPS62902

ACTIVO

Hoja de datos

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Detalles del producto

Rating

Catalog

Topology

Buck

Iout (max) (A)

2

Vin (max) (V)

17

Vin (min) (V)

3

Vout (max) (V)

5.5

Vout (min) (V)

0.4

Features

Enable, Forced PWM, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable

Control mode

DCS-Control

Operating temperature range (°C)

-40 to 165

Iq (typ) (A)

0.000004

Duty cycle (max) (%)

100

Rating

Catalog

Topology

Buck

Iout (max) (A)

2

Vin (max) (V)

17

Vin (min) (V)

3

Vout (max) (V)

5.5

Vout (min) (V)

0.4

Features

Enable, Forced PWM, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable

Control mode

DCS-Control

Operating temperature range (°C)

-40 to 165

Iq (typ) (A)

0.000004

Duty cycle (max) (%)

100

VQFN-HR (RPJ)

9

3 mm² (2 mm × 1.5 mm)

High efficiency for wide duty cycle and load range
- I Q: 4 µA typical
- Selectable switching frequency of 2.5 MHz and 1.0 MHz
- R DS(ON): 62-mΩ high side, 22-mΩ low side
- Automatic efficiency enhancement (AEE)
Small 1.5-mm × 2.0-mm VQFN package with 0.5-mm pitch
Up to 2-A continuous output current
±0.9% feedback voltage accuracy across temp (-40°C to 150°C)
Configurable ouput voltage options:
- V FB external divider: 0.6 V to 5.5 V
- V SET internal divider: 16 options between 0.4 V and 5.5 V
DCS-Control™ topology with 100% mode
Highly flexible and easy to use
- Optimized pinout for single-layer routing
- Precise enable input
- Forced PWM or auto power save mode
- Power good output
- Selectable active output discharge
- Adjustable soft start and tracking
No external bootstrap capacitor required
Create a custom design using the TPS62902 using the WEBENCH Power Designer

High efficiency for wide duty cycle and load range
- I Q: 4 µA typical
- Selectable switching frequency of 2.5 MHz and 1.0 MHz
- R DS(ON): 62-mΩ high side, 22-mΩ low side
- Automatic efficiency enhancement (AEE)
Small 1.5-mm × 2.0-mm VQFN package with 0.5-mm pitch
Up to 2-A continuous output current
±0.9% feedback voltage accuracy across temp (-40°C to 150°C)
Configurable ouput voltage options:
- V FB external divider: 0.6 V to 5.5 V
- V SET internal divider: 16 options between 0.4 V and 5.5 V
DCS-Control™ topology with 100% mode
Highly flexible and easy to use
- Optimized pinout for single-layer routing
- Precise enable input
- Forced PWM or auto power save mode
- Power good output
- Selectable active output discharge
- Adjustable soft start and tracking
No external bootstrap capacitor required
Create a custom design using the TPS62902 using the WEBENCH Power Designer

The TPS62902 is a highly-efficient, small, and flexible synchronous step-down DC-DC converter that is easy to use. A selectable switching frequency of 2.5 MHz or 1.0 MHz allows the use of small inductors and provides fast transient response. The device supports high V OUT accuracy of ± 1% with DCS-Control topology. The wide input voltage range of 3-V to 17-V supports a variety of nominal inputs, like 12-V supply rails, single-cell or multi-cell Li-Ion, and 5-V or 3.3-V rails.

The TPS62902 can automatically enter power save mode (if auto PFM/PWM is selected) at light loads to maintain high efficiency. Additionally, to provide high efficiency at very small loads, the device has a low typical quiescent current of 4 µA. AEE, if enabled, provides high efficiency across V IN, V OUT, and load current. The device includes a S-CONF/MODE input to set the internal/external divider, switching frequency, output voltage discharge, and automatic power save mode or forced PWM operation.

The device is available in small 9-pin VQFN package measuring 1.50 mm × 2.00 mm with 0.5-mm pitch.

The TPS62902 is a highly-efficient, small, and flexible synchronous step-down DC-DC converter that is easy to use. A selectable switching frequency of 2.5 MHz or 1.0 MHz allows the use of small inductors and provides fast transient response. The device supports high V OUT accuracy of ± 1% with DCS-Control topology. The wide input voltage range of 3-V to 17-V supports a variety of nominal inputs, like 12-V supply rails, single-cell or multi-cell Li-Ion, and 5-V or 3.3-V rails.

The TPS62902 can automatically enter power save mode (if auto PFM/PWM is selected) at light loads to maintain high efficiency. Additionally, to provide high efficiency at very small loads, the device has a low typical quiescent current of 4 µA. AEE, if enabled, provides high efficiency across V IN, V OUT, and load current. The device includes a S-CONF/MODE input to set the internal/external divider, switching frequency, output voltage discharge, and automatic power save mode or forced PWM operation.

The device is available in small 9-pin VQFN package measuring 1.50 mm × 2.00 mm with 0.5-mm pitch.

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Documentación técnica

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Documentación principal	Tipo	Título	Opciones de formato	Fecha
*	Hoja de datos	TPS62902, 3-V to 17-V, High Efficiency and Low IQBuck Converter in 1.5-mm × 2-mm QFN Package datasheet (Rev. A)	PDF \| HTML	6/11/2023
	Nota sobre la aplicación	How to Best Use TPS62903 for a Given Application Requirement	PDF \| HTML	13/08/2021
	Nota sobre la aplicación	Comparison of TPS6290x vs. TPS621x0	PDF \| HTML	23/07/2021
	Application brief	Multi-Function Pins for Easy Designing	PDF \| HTML	7/07/2021
	Certificado	TPS62902EVM-069 EU RoHS Declaration of Conformity (DoC)		15/12/2020

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

TPS62902EVM-069 — Convertidor buck de 17 VIN, 2 A y baja IQ en módulo de evaluación de encapsulado QFN de 1.5 mm x 2 m

El módulo de evaluación (EVM) TPS62902EVM-069 (BSR069-002) facilita la evaluación del convertidor buck de 2 A TPS62902 en un pequeño encapsulado QFN de 1.5 mm por 2 mm. El EVM genera una tensión de salida de 1.8 V a partir de tensiones de entrada de entre 3 V y 17 V. El TPS62902 es un convertidor (...)

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