TPS54623

Name: TPS54623
Brand: TI
SKU: TPS54623
Price: 1.309 USD

ACTIVO

Convertidor reductor SWIFT™ síncrono de 4.5 V a 17 V y 6 A con eficiencia de carga ligera

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Hoja de datos

document-pdfAcrobat TPS54623 4.5-V to 17-V Input, 6-A Synchronous Step-Down SWIFT™ Converter With Light Load Efficiency and Hiccup Overcurrent Protection datasheet (Rev. C) (Inglés) PDF | HTML

TPS54623

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Detalles del producto

Rating

Catalog

Operating temperature range (°C)

-40 to 150

Topology

Buck

Type

Converter

Iout (max) (A)

6

Vin (min) (V)

4.5

Vin (max) (V)

17

Switching frequency (min) (kHz)

200

Switching frequency (max) (kHz)

1600

Features

Enable, Frequency synchronization, Light Load Efficiency, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking

Control mode

current mode

Vout (min) (V)

0.6

Vout (max) (V)

15

Iq (typ) (µA)

250

Duty cycle (max) (%)

98

Rating

Catalog

Operating temperature range (°C)

-40 to 150

Topology

Buck

Type

Converter

Iout (max) (A)

6

Vin (min) (V)

4.5

Vin (max) (V)

17

Switching frequency (min) (kHz)

200

Switching frequency (max) (kHz)

1600

Features

Enable, Frequency synchronization, Light Load Efficiency, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking

Control mode

current mode

Vout (min) (V)

0.6

Vout (max) (V)

15

Iq (typ) (µA)

250

Duty cycle (max) (%)

98

VQFN (RHL)

14

12.25 mm² 3.5 x 3.5

Integrated 26 mΩ, 19 mΩ MOSFETs
Split Power Rail: 1.6 V to 17 V on PVIN
200 kHz to 1.6 MHz Switching Frequency
Light Load Efficient With Pulse Skip
Synchronizes to External Clock
0.6 V ±1% Voltage Reference Overtemperature
Low 2-µA Shutdown Quiescent Current
Monotonic Start-Up into Pre-biased Outputs
–40°C to 150°C Operating Junction Temperature Range
Adjustable Slow Start and Power Sequencing
Power Good Output Monitor for Undervoltage and Overvoltage
Adjustable Input Undervoltage Lockout
Create a Custom Design Using the TPS54623 With the WEBENCH^® Power Designer

Integrated 26 mΩ, 19 mΩ MOSFETs
Split Power Rail: 1.6 V to 17 V on PVIN
200 kHz to 1.6 MHz Switching Frequency
Light Load Efficient With Pulse Skip
Synchronizes to External Clock
0.6 V ±1% Voltage Reference Overtemperature
Low 2-µA Shutdown Quiescent Current
Monotonic Start-Up into Pre-biased Outputs
–40°C to 150°C Operating Junction Temperature Range
Adjustable Slow Start and Power Sequencing
Power Good Output Monitor for Undervoltage and Overvoltage
Adjustable Input Undervoltage Lockout
Create a Custom Design Using the TPS54623 With the WEBENCH^® Power Designer

The TPS54623 in thermally enhanced VQFN package is a full featured 17-V, 6-A synchronous step-down converter which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing the inductor’s footprint.

The output voltage start-up ramp is controlled by the SS/TR pin, which allows operation as either a stand alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins.

Cycle-by-cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit that turns off the low-side MOSFET to prevent excessive reverse current. Hiccup protection will be triggered if the overcurrent condition has persisted for longer than the preset time. Thermal hiccup protection disables the device when the die temperature exceeds the thermal shutdown temperature and enables the part again after the built-in thermal shutdown hiccup time. The TPS54623 operates at continuous current mode (CCM) at higher load conditions while skipping pulses to boost the efficiency at light loads.

The TPS54623 in thermally enhanced VQFN package is a full featured 17-V, 6-A synchronous step-down converter which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing the inductor’s footprint.

The output voltage start-up ramp is controlled by the SS/TR pin, which allows operation as either a stand alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins.

Cycle-by-cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit that turns off the low-side MOSFET to prevent excessive reverse current. Hiccup protection will be triggered if the overcurrent condition has persisted for longer than the preset time. Thermal hiccup protection disables the device when the die temperature exceeds the thermal shutdown temperature and enables the part again after the built-in thermal shutdown hiccup time. The TPS54623 operates at continuous current mode (CCM) at higher load conditions while skipping pulses to boost the efficiency at light loads.

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Documentación técnica

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	Tipo	Título		Fecha
*	Data sheet	TPS54623 4.5-V to 17-V Input, 6-A Synchronous Step-Down SWIFT™ Converter With Light Load Efficiency and Hiccup Overcurrent Protection datasheet (Rev. C)	PDF \| HTML	10 oct 2017
	Application note	Semiconductor and IC Package Thermal Metrics (Rev. D)	PDF \| HTML	25 mar 2024
	EVM User's guide	TPS54623 Step-Down Converter Evaluation Module User's Guide (Rev. A)	PDF \| HTML	23 ago 2021
	Application note	Calculating Efficiency (Rev. A)		06 mar 2020
	Application note	Minimizing Output Ripple During Startup (Rev. A)		20 may 2019
	Selection guide	Power Management Guide 2018 (Rev. R)		25 jun 2018
	Application note	Minimizing Output Ripple During Startup		22 jun 2017
	Application note	Understanding Thermal Dissipation and Design of a Heatsink		04 may 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

TPS54623EVM-012 — Módulo de evaluación para convertidor SWIFT reductor síncrono TPS54623

The TPS54623EVM-012 Evaluation Module is a fully assembled and tested circuit for evaluating the TPS54623 Synchronous Step-Down SWIFT™ Converter with hiccup overcurrent protection and high light-load efficiency. The TPS54623EVM-012 operates from a 8V to 17V input and provides a 3.3V output at 6A.

Guía del usuario: PDF | HTML