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TPS546A24S

現行

具有增強的安全性的 2.95-V 至 16-V、可堆疊 10-A 同步 SWIFT™ 降壓 PMBus 轉換器

立即訂購
產品規格表

TPS546A24S

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 10 Vin (min) (V) 2.95 Vin (max) (V) 16 Switching frequency (min) (kHz) 225 Switching frequency (max) (kHz) 1500 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Extended security, Forced PWM, Frequency synchronization, Over Current Protection, PMBus, Phase Interleaving, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Telemetry, UVLO adjustable, Voltage Margining Control mode current mode Vout (min) (V) 0.25 Vout (max) (V) 5.5 Iq (typ) (µA) 9000 Duty cycle (max) (%) 85
Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 10 Vin (min) (V) 2.95 Vin (max) (V) 16 Switching frequency (min) (kHz) 225 Switching frequency (max) (kHz) 1500 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Differential Remote Sense, Enable, Extended security, Forced PWM, Frequency synchronization, Over Current Protection, PMBus, Phase Interleaving, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Telemetry, UVLO adjustable, Voltage Margining Control mode current mode Vout (min) (V) 0.25 Vout (max) (V) 5.5 Iq (typ) (µA) 9000 Duty cycle (max) (%) 85
LQFN-CLIP (RVF) 40 35 mm² 7 x 5
  • Integrated extended security feature
  • Split rail support: 2.95-V to 18-V PVIN; 2.95-V to 18-V AVIN (4-V IN VDD5 for switching)
  • Integrated 5.5-mΩ/1.8-mΩ MOSFETs
  • Average current mode control with selectable internal compensation
  • 2 ×, 3 ×, 4 × stackable with current sharing up to 40 A, supporting a single address per output
  • Selectable 0.5-V to 5.5-V output through pin strap or 0.25-V to 5.5-V using PMBus VOUT_COMMAND
  • Extensive PMBus command set with telemetry for V OUT, I OUT, and internal die temperature
  • Differential remote sensing with an 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
  • 7-mm × 5-mm × 1.5-mm, 40-pin QFN
  • Drop-in compatible with TPS546A24A
  • Create a Custom Design Using the TPS546A24S with WEBENCH Power Designer
  • Integrated extended security feature
  • Split rail support: 2.95-V to 18-V PVIN; 2.95-V to 18-V AVIN (4-V IN VDD5 for switching)
  • Integrated 5.5-mΩ/1.8-mΩ MOSFETs
  • Average current mode control with selectable internal compensation
  • 2 ×, 3 ×, 4 × stackable with current sharing up to 40 A, supporting a single address per output
  • Selectable 0.5-V to 5.5-V output through pin strap or 0.25-V to 5.5-V using PMBus VOUT_COMMAND
  • Extensive PMBus command set with telemetry for V OUT, I OUT, and internal die temperature
  • Differential remote sensing with an 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
  • 7-mm × 5-mm × 1.5-mm, 40-pin QFN
  • Drop-in compatible with TPS546A24A
  • Create a Custom Design Using the TPS546A24S with WEBENCH Power Designer

The TPS546A24S is a highly integrated, non-isolated DC/DC converter that expands on the TPS546A24A by adding manufacturer-specific PMBus commands and Extended Write Protect and Passkey. This feature improves security against malicious access to the PMBus by restricting Write capability with greater resolution than the standard Write Protect command. TPS546A24S is capable of high frequency operation and 10-A current output from a 7-mm × 5-mm package. Two, three, and four TPS546A24S devices can be interconnected to provide up to 40 A on a single output. The device has an option to overdrive the internal 5-V LDO with an external 5-V supply through the VDD5 pin to improve efficiency and reduce power dissipation of the converter.

The TPS546A24S 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 TPS546A24S 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 TPS546A24S is a highly integrated, non-isolated DC/DC converter that expands on the TPS546A24A by adding manufacturer-specific PMBus commands and Extended Write Protect and Passkey. This feature improves security against malicious access to the PMBus by restricting Write capability with greater resolution than the standard Write Protect command. TPS546A24S is capable of high frequency operation and 10-A current output from a 7-mm × 5-mm package. Two, three, and four TPS546A24S devices can be interconnected to provide up to 40 A on a single output. The device has an option to overdrive the internal 5-V LDO with an external 5-V supply through the VDD5 pin to improve efficiency and reduce power dissipation of the converter.

The TPS546A24S 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 TPS546A24S 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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類型 標題 日期
* Data sheet TPS546A24S2.95-V to18-V,10-A, Up to 4 × Stackable, SynchronousSWIFTStep-Down Converter withPMBusand Extended Write Protection datasheet PDF | HTML 2023年 11月 17日
Application brief Using the Security Features Inside the TPS546x24S Family of Step-Down Converters and Modules (Rev. A) PDF | HTML 2024年 2月 26日
Certificate TPS546A24SEVM-1PH EU Declaration of Conformity (DoC) 2023年 6月 14日

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開發板

TPS546D24SEVM-2PH — 具有寫入鎖定功能的 TPS546D24S 評估模組固定頻率同步降壓轉換器 2 相

TPS546D24SEVM-2PH 評估模組 (EVM) 是 2 相降壓轉換器，配備兩個提供單一 0.8 V 輸出的 TPS546D24S 裝置。TPS546D24A 裝置是具備 PMBus 介面的堆疊式同步降壓轉換器，可在額定 2.95 V 至 16 V 輸入供電範圍內運作。此裝置可經由 PMBus 介面進行編程及監控，該介面具有使用者可配置的寫入鎖定功能，以提高安全性。
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  • 認證摘要
  • 進行中持續性的可靠性監測
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