TPS546D24

Name: TPS546D24
Brand: TI
SKU: TPS546D24
Price: 4.695 USD

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2,95 V bis 16 V, stapelbarer Synchron-40-A-SWIFT™-Abwärtswandler mit PMBus

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Datenblatt

document-pdfAcrobat TPS546D24 2.95-V to 16-V, 40-A, up to 4× Stackable, PMBus Buck Converter datasheet (Rev. A) (Englisch) PDF | HTML

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Drop-In-Ersatz mit verbesserter Funktionalität im Gegensatz zum verglichenen Baustein

TPS546D24A

AKTIV

Stapelbarer synchroner Abwärtswandler der SWIFT™-Reihe, 2,95 bis 16 V, 40 A, mit Pin-Strapping und P Includes MSEL programming enhancements to set switching frequency, internal compensation parameters, and more.

TPS546D24

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Iout (max) (A)

40

Vin (min) (V)

2.95

Vin (max) (V)

16

Topology

Buck

Type

Converter

Switching frequency (min) (kHz)

225

Switching frequency (max) (kHz)

1500

Features

Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, I2C/PMBus, Over Current Protection, Phase Interleaving, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable, Voltage Margining

Control mode

current mode

Vout (min) (V)

0.25

Vout (max) (V)

5.5

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.009

Iout (max) (A)

40

Vin (min) (V)

2.95

Vin (max) (V)

16

Topology

Buck

Type

Converter

Switching frequency (min) (kHz)

225

Switching frequency (max) (kHz)

1500

Features

Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, I2C/PMBus, Over Current Protection, Phase Interleaving, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable, Voltage Margining

Control mode

current mode

Vout (min) (V)

0.25

Vout (max) (V)

5.5

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.009

LQFN-CLIP (RVF)

40

35 mm² 7 x 5

Split Rail Support: 2.95-V to 16-V PVIN;
2.95-V to 18-V AVIN (4-V_IN VDD5 for Switching)
Integrated 4.5-mΩ/0.9-mΩ MOSFETs
Average Current Mode Control With Selectable Internal Compensation
2×, 3x, 4× Stackable With Current Sharing up to 160 A, Supporting a Single Address per Output
Selectable 0.6-V to 5.5-V Output via Pin Strap or 0.25-V to 5.5-V via PMBus VOUT_COMMAND
Extensive PMBus Command Set With Telemetry for V_OUT, I_OUT and Internal Die Temperature
Differential Remote Sensing With Internal FB Divider for < 1% V_OUT Error –40°C to +150°C T_J
AVS and Margining Capabilities Through PMBus
MSEL Pins Pin Programming PMBus Defaults
12 Selectable Switching Frequencies from 225 kHz to 1.5 MHz (8 Pin-Strap Options)
Frequency Sync In/Sync Out
Supports Prebiased Output
Supports Strongly Coupled Inductor
7 mm × 5 mm × 1.5 mm, 40-pin QFN,
Pitch = 0.5 mm
Create a Custom Design Using the TPS546D24 With WEBENCH^® Power Designer

Split Rail Support: 2.95-V to 16-V PVIN;
2.95-V to 18-V AVIN (4-V_IN VDD5 for Switching)
Integrated 4.5-mΩ/0.9-mΩ MOSFETs
Average Current Mode Control With Selectable Internal Compensation
2×, 3x, 4× Stackable With Current Sharing up to 160 A, Supporting a Single Address per Output
Selectable 0.6-V to 5.5-V Output via Pin Strap or 0.25-V to 5.5-V via PMBus VOUT_COMMAND
Extensive PMBus Command Set With Telemetry for V_OUT, I_OUT and Internal Die Temperature
Differential Remote Sensing With Internal FB Divider for < 1% V_OUT Error –40°C to +150°C T_J
AVS and Margining Capabilities Through PMBus
MSEL Pins Pin Programming PMBus Defaults
12 Selectable Switching Frequencies from 225 kHz to 1.5 MHz (8 Pin-Strap Options)
Frequency Sync In/Sync Out
Supports Prebiased Output
Supports Strongly Coupled Inductor
7 mm × 5 mm × 1.5 mm, 40-pin QFN,
Pitch = 0.5 mm
Create a Custom Design Using the TPS546D24 With WEBENCH^® Power Designer

The TPS546D24 is a highly integrated, non-isolated DC/DC converter capable of high frequency operation and 40-A current output from a 7-mm × 5-mm package. Two, three, and four TPS546D24 devices can be interconnected to provide up to 160 A on a single output. The device has an option to overdrive the internal 5-V LDO with an external 5-V supply via the VDD5 pin to improve efficiency and reduce power dissipation of the converter.

The TPS546D24 uses a proprietary fixed-frequency current-mode control with input feedforward and selectable internal compensation components for minimal size and stability over a wide range of output capacitances.

The PMBus interface with 1-MHz clock support gives a convenient, standardized digital interface for converter configuration as well as monitoring of key parameters including output voltage, output current, and internal die temperature. Response to fault conditions can be set to restart, latch off, or ignore, depending on system requirements. Back-channel communication between stacked devices enables all TPS546D24 converters powering a single output rail to share a single address to simplify system software/firmware design. Key parameters including output voltage, switching frequency, soft-start time, and overcurrent fault limits can also be configured through BOM selection without PMBus communication to support program free power-up.

The TPS546D24 is a highly integrated, non-isolated DC/DC converter capable of high frequency operation and 40-A current output from a 7-mm × 5-mm package. Two, three, and four TPS546D24 devices can be interconnected to provide up to 160 A on a single output. The device has an option to overdrive the internal 5-V LDO with an external 5-V supply via the VDD5 pin to improve efficiency and reduce power dissipation of the converter.

The TPS546D24 uses a proprietary fixed-frequency current-mode control with input feedforward and selectable internal compensation components for minimal size and stability over a wide range of output capacitances.

The PMBus interface with 1-MHz clock support gives a convenient, standardized digital interface for converter configuration as well as monitoring of key parameters including output voltage, output current, and internal die temperature. Response to fault conditions can be set to restart, latch off, or ignore, depending on system requirements. Back-channel communication between stacked devices enables all TPS546D24 converters powering a single output rail to share a single address to simplify system software/firmware design. Key parameters including output voltage, switching frequency, soft-start time, and overcurrent fault limits can also be configured through BOM selection without PMBus communication to support program free power-up.

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Alle anzeigen 9

	Typ	Titel		Datum
*	Data sheet	TPS546D24 2.95-V to 16-V, 40-A, up to 4× Stackable, PMBus Buck Converter datasheet (Rev. A)	PDF \| HTML	04 Dez 2018
	Application note	DC/DC Converter Solutions for Hardware Accelerators in Data Center Applications (Rev. A)	PDF \| HTML	04 Mai 2021
	Technical article	3 big benefits of small cells	PDF \| HTML	26 Mai 2020
	Application note	Powering the TPS546D24A Device Family From a Single 3.3-V Input Power Supply (Rev. A)		04 Mär 2020
	Application note	Point-of-Load Solutions for Data Center App Implementing VR13.HC Vccin Spec (Rev. A)	PDF \| HTML	08 Jan 2020
	Application note	Achieving Better than 1% Output Voltage Accuracy with TPS546D24A		01 Dez 2019
	White paper	Small Cells, Big Impact: Designing Power Soutions for 5G Applications		26 Jun 2019
	Application note	Programming the NVM of PMBus Buck Converters to Support Mass-Production Needs (Rev. B)		13 Mai 2019
	Application note	DC/DC Point-of-load Power Solutions for Wired Networking Switch Systems		11 Dez 2018

Design und Entwicklung

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Evaluierungsplatine

TPS546D24EVM-856 — Evaluierungsmodul für stapelbaren synchronen Abwärtswandler mit fester Frequenz, nicht kompensierend

The TPS546D24AEVM-2PH evaluation module is a two-phase interleaved power supply with two TPS546D24 devices on the board. The design provides a regulated 0.8-V output up to 80-A DC steady-state output current. The device allows programming and monitoring via the PMBus interface. Output current is (...)

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