TPS40305

Name: TPS40305
Brand: TI
SKU: TPS40305
Price: 0.782 USD

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Controlador reductor síncrono de 3 V a 20 V, 25 A, 1.2 MHz, con FSS

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document-pdfAcrobat TPS4030x 3-V to 20-V Input, Voltage Mode, Synchronous Buck Controller datasheet (Rev. D) (Inglés) PDF | HTML

TPS40305

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Detalles del producto

Rating

Catalog

Topology

Buck

Iout (max) (A)

25

Vin (max) (V)

20

Vin (min) (V)

3

Vout (max) (V)

17

Vout (min) (V)

0.6

Control mode

Voltage mode

Features

Enable, Power good, Prebias startup, Spread Spectrum, Synchronous rectification

EMI features

Spread Spectrum

Duty cycle (max) (%)

85

Iq (typ) (A)

0.0025

Number of phases

1

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Topology

Buck

Iout (max) (A)

25

Vin (max) (V)

20

Vin (min) (V)

3

Vout (max) (V)

17

Vout (min) (V)

0.6

Control mode

Voltage mode

Features

Enable, Power good, Prebias startup, Spread Spectrum, Synchronous rectification

EMI features

Spread Spectrum

Duty cycle (max) (%)

85

Iq (typ) (A)

0.0025

Number of phases

1

Operating temperature range (°C)

-40 to 125

VSON (DRC)

10

9 mm² 3 x 3

Input Voltage Range From 3 V to 20 V
300-kHz (TPS40303), 600-kHz (TPS40304), and 1.2-MHz (TPS40305) Switching Frequencies
High- and Low-Side FET R_DS(on) Current Sensing
Programmable Thermally Compensated OCP Levels
Programmable Soft Start
600-mV, 1% Reference Voltage
Voltage Feed-Forward Compensation
Supports Prebiased Output
Frequency Spread Spectrum
Thermal Shutdown Protection at 145°C
10-Pin 3-mm × 3-mm VSON Package With Ground Connection to Thermal Pad
Create a Custom Design Using the TPS4030x With the WEBENCH^® Power Designer

Input Voltage Range From 3 V to 20 V
300-kHz (TPS40303), 600-kHz (TPS40304), and 1.2-MHz (TPS40305) Switching Frequencies
High- and Low-Side FET R_DS(on) Current Sensing
Programmable Thermally Compensated OCP Levels
Programmable Soft Start
600-mV, 1% Reference Voltage
Voltage Feed-Forward Compensation
Supports Prebiased Output
Frequency Spread Spectrum
Thermal Shutdown Protection at 145°C
10-Pin 3-mm × 3-mm VSON Package With Ground Connection to Thermal Pad
Create a Custom Design Using the TPS4030x With the WEBENCH^® Power Designer

The TPS4030x is a family of cost-optimized synchronous buck controllers that operate from 3-V to 20-V input. The controller implements a voltage-mode control architecture with input-voltage feed-forward compensation that responds instantly to a change in input voltage. The switching frequency is fixed at 300 kHz, 600 kHz, or 1.2 MHz.

The frequency spread-spectrum (FSS) feature adds to the switching frequency, significantly reducing the peak EMI noise and making it much easier to comply with EMI standards.

The TPS4030x offers design with a variety of user-programmable functions, including soft start, overcurrent protection (OCP) levels, and loop compensation.

OCP level may be programmed by a single external resistor connected from the LDRV pin to circuit ground. During initial power on, the TPS4030x enters a calibration cycle, measures the voltage at the LDRV pin, and sets an internal OCP voltage level. During operation, the programmed OCP voltage level is compared to the voltage drop across the low-side FET when it is on to determine whether there is an overcurrent condition. The TPS4030x then enters a shutdown and restart cycle until the fault is removed.

The TPS4030x is a family of cost-optimized synchronous buck controllers that operate from 3-V to 20-V input. The controller implements a voltage-mode control architecture with input-voltage feed-forward compensation that responds instantly to a change in input voltage. The switching frequency is fixed at 300 kHz, 600 kHz, or 1.2 MHz.

The frequency spread-spectrum (FSS) feature adds to the switching frequency, significantly reducing the peak EMI noise and making it much easier to comply with EMI standards.

The TPS4030x offers design with a variety of user-programmable functions, including soft start, overcurrent protection (OCP) levels, and loop compensation.

OCP level may be programmed by a single external resistor connected from the LDRV pin to circuit ground. During initial power on, the TPS4030x enters a calibration cycle, measures the voltage at the LDRV pin, and sets an internal OCP voltage level. During operation, the programmed OCP voltage level is compared to the voltage drop across the low-side FET when it is on to determine whether there is an overcurrent condition. The TPS4030x then enters a shutdown and restart cycle until the fault is removed.

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Documentación técnica

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Documentación principal	Tipo	Título	Opciones de formato	Fecha
*	Data sheet	TPS4030x 3-V to 20-V Input, Voltage Mode, Synchronous Buck Controller datasheet (Rev. D)	PDF \| HTML	12 mar 2018
	Selection guide	Power Management Guide 2018 (Rev. R)		25 jun 2018
	Selection guide	DC/DC Buck Controller Solutions Selection Guide		06 feb 2018
	Application note	SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC		22 feb 2016

Diseño y desarrollo

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Placa de evaluación

TPS40305EVM-488 — Módulo de evaluación de controlador reductor síncrono de entrada de 8-14 V, salida de 1.8 V, con MOS

The TPS40305EVM-488 evaluation module (EVM) is a synchronous buck converter providing a fixed 1.8-V output at up to 10A from a 12-V input bus. The EVM is designed to start-up from a single supply; so, no additional bias voltage is required for start-up. The module uses the TPS40305 high (...)

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