TPS544B25

現行

具 PMBus 與頻率同步的 4.5-V 至 18-V、20-A 同步 SWIFT™ 降壓轉換器

立即訂購

產品規格表

document-pdfAcrobat TPS544x25 4.5-V to 18-V, 20-A and 30-A SWIFT Synchronous Buck Converters with PMBus and Frequency Synchronization datasheet (英文) PDF | HTML

TPS544B25

現行

產品規格表

立即訂購

產品詳細資料

Rating

Catalog

Topology

Buck

Iout (max) (A)

20

Vin (max) (V)

18

Vin (min) (V)

4.5

Vout (max) (V)

5.5

Vout (min) (V)

0.5

Features

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

Control mode

Voltage mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.0095

Duty cycle (max) (%)

80

Rating

Catalog

Topology

Buck

Iout (max) (A)

20

Vin (max) (V)

18

Vin (min) (V)

4.5

Vout (max) (V)

5.5

Vout (min) (V)

0.5

Features

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

Control mode

Voltage mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.0095

Duty cycle (max) (%)

80

LQFN-CLIP (RVF)

40

35 mm² (7 mm × 5 mm)

PMBus 1.2 Compliant Converters: 20 A and 30 A
Input Voltage Range: 4.5 V to 18 V
Output Voltage Range: 0.5 V to 5.5 V
5 mm × 7 mm LQFN Package
Single Thermal Pad
Integrated 5.5-mΩ and 2.0-mΩ Stacked NexFET™ Power Stage
500-mV to 1500-mV Reference for Adapative Voltage Scaling (AVS) and Margining through PMBus
0.5% Reference Accuracy at 600 mV and Above
Lossless Low-Side MOSFET Current Sensing
Voltage Mode Control with Input Feed-Forward
Differential Remote Sensing
Monotonic Start-Up into Pre-Biased Output
Output Voltage and Output Current Reporting
External Temperature Monitoring with 2N3904 Transistor
Programmable via the PMBus interface
- VOUT_COMMAND and AVS VOUT Transition Rate
- Overcurrent Protection with Thermal Compensation
- UVLO, Soft-Start and Soft-Stop
- PGOOD, OV, UV, OT Levels
- Fault Responses
- Turn-On and Turn-Off Delays
Thermal Shutdown
Pin Strapping for Switching Frequency: 200 kHz to 1 MHz
Frequency Synchronization to an External Clock
Footprint Compatible 20-A, 30-A Converters

PMBus 1.2 Compliant Converters: 20 A and 30 A
Input Voltage Range: 4.5 V to 18 V
Output Voltage Range: 0.5 V to 5.5 V
5 mm × 7 mm LQFN Package
Single Thermal Pad
Integrated 5.5-mΩ and 2.0-mΩ Stacked NexFET™ Power Stage
500-mV to 1500-mV Reference for Adapative Voltage Scaling (AVS) and Margining through PMBus
0.5% Reference Accuracy at 600 mV and Above
Lossless Low-Side MOSFET Current Sensing
Voltage Mode Control with Input Feed-Forward
Differential Remote Sensing
Monotonic Start-Up into Pre-Biased Output
Output Voltage and Output Current Reporting
External Temperature Monitoring with 2N3904 Transistor
Programmable via the PMBus interface
- VOUT_COMMAND and AVS VOUT Transition Rate
- Overcurrent Protection with Thermal Compensation
- UVLO, Soft-Start and Soft-Stop
- PGOOD, OV, UV, OT Levels
- Fault Responses
- Turn-On and Turn-Off Delays
Thermal Shutdown
Pin Strapping for Switching Frequency: 200 kHz to 1 MHz
Frequency Synchronization to an External Clock
Footprint Compatible 20-A, 30-A Converters

The TPS544x25 devices are PMBus 1.2 Compliant, non-isolated DC-DC converters with integrated FETs, capable of high-frequency operation and 20-A or 30-A current output from a 5 mm × 7 mm package. High-frequency, low-loss switching, provided by an integrated NexFET™ power stage and optimized drivers, allows for very high-density power solutions. The PMBus interface enables the AVS through VOUT_COMMAND, flexible converter configuration, as well as key parameters monitoring including output voltage, current and an optional external temperature. Response to fault conditions can be set to either restart, latch-off or ignore depending on system requirements.

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TPS544C25

現行

具 PMBus 與頻率同步的 4.5-V 至 18-V、30-A 同步 SWIFT™ 降壓轉換器 Higher current equivalent.

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TPS546B24A

現行

具有針腳設置和 PMBus 的 2.95-V 至 18-V、可堆疊 20-A 同步 SWIFT™ 降壓轉換器 Upgraded converter offering higher efficiency with a wider operating temperature range.

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重要文件	類型	標題	格式選項	日期
*	資料表	TPS544x25 4.5-V to 18-V, 20-A and 30-A SWIFT Synchronous Buck Converters with PMBus and Frequency Synchronization datasheet	PDF \| HTML	2015/5/15
	應用說明	Programming the NVM of PMBus Buck Converters to Support Mass-Production Needs (Rev. B)		2019/5/13
	類比設計期刊	Maximizing power density and thermal performance in power-module designs		2018/12/12
	應用說明	Analysis and Design of Input Filter for DC-DC Circuit		2017/11/27
	應用說明	SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC		2016/2/22
	技術文章	Select the correct PMBus POL solution for your application	PDF \| HTML	2015/8/3

設計與開發

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開發板

TPS544B25EVM-681 — 具有 PMBus 介面的單輸出 DC 轉 DC 轉換器

TPS544B25EVM-681 評估模組 (EVM) 設計為單輸出 DC-DC 轉換器，展示了典型的低電壓應用，同時提供多個測試點來評估性能。其使用額定 12V 輸入匯流排，提供 0.95V 穩壓輸出，支援最高 30A 負載電流，視安裝的裝置而定。

如果設計師想要從 Windows 架構 PC 與此 EVM 通訊，需要獨立的 USB 介面轉接器 EVM。USB-TO-GPIO 轉接器可作為介面轉接器，或是透過標準 Type-A 至 mini-B USB 纜線，作為主機 PC（與 IBM）和一個或多個從屬裝置之間的橋接器。下方的相關產品區段中列出了 USB-TO-GPIO 轉接器。

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PMBUSSW-LINUX — 適用於 PMBUS 的 Linux 驅動程式

The Linux driver supports PMBus controlled Buck Controllers. The Linux driver supports communication through the PMBus and interfaces with the HWMon framework.