ホーム パワー・マネージメント AC/DC および DC/DC コンバータ (FET 内蔵)

TPS546B24S

アクティブ

セキュリティ強化、2.95V ~ 16V、スタッカブル、20A、SWIFT™ 同期整流降圧 PMBus コンバータ

製品詳細

Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 20 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, 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 Iq (typ) (µA) 9000 Duty cycle (max) (%) 85
Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 20 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, 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 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 80 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 TPS546B24A
  • Create a Custom Design Using the TPS546B24S 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 80 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 TPS546B24A
  • Create a Custom Design Using the TPS546B24S with WEBENCH Power Designer

The TPS546B24S is a highly integrated, non-isolated DC/DC converter that expands on the TPS546B24A 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. TPS546B24S is capable of high frequency operation and 20-A current output from a 7-mm × 5-mm package. Two, three, and four TPS546B24S devices can be interconnected to provide up to 80 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 TPS546B24S 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 TPS546B24S 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 TPS546B24S is a highly integrated, non-isolated DC/DC converter that expands on the TPS546B24A 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. TPS546B24S is capable of high frequency operation and 20-A current output from a 7-mm × 5-mm package. Two, three, and four TPS546B24S devices can be interconnected to provide up to 80 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 TPS546B24S 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 TPS546B24S 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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種類 タイトル 最新の英語版をダウンロード 日付
* データシート TPS546B24S2.95-V to18-V,20-A, Up to 4 × Stackable, SynchronousSWIFTStep-Down Converter withPMBusand Extended Write Protection データシート PDF | HTML 2023年 11月 14日
アプリケーション概要 Using the Security Features Inside the TPS546x24S Family of Step-Down Converters and Modules (Rev. A) PDF | HTML 2024年 2月 26日
証明書 TPS546B24SEVM-1PH EU Declaration of Conformity (DoC) 2023年 6月 14日
証明書 TPS546B24SEVM-2PH EU Declaration of Conformity (DoC) 2023年 6月 13日

設計および開発

その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページをご覧ください。

評価ボード

TPS546D24SEVM-2PH — TPS546D24S 書き込みロック機能搭載、固定周波数、2 相、同期整流降圧コンバータの評価基板

TPS546D24SEVM-2PH 評価基板 (EVM) は、2 個の TPS546D24S デバイスを搭載し、0.8V の単一出力を供給する 2 相降圧コンバータです。TPS546D24A デバイスは、PMBus インターフェイスを搭載したスタッカブル同期整流降圧コンバータであり、公称 2.95V ~ 16V の入力電圧範囲で動作します。このデバイスは、PMBus インターフェイス経由のプログラミング (書き込み) と監視に対応しており、ユーザーが構成できる書き込みロック機能を採用しているので、セキュリティを向上させることができます。
ユーザー ガイド: PDF | HTML
パッケージ ピン数 CAD シンボル、フットプリント、および 3D モデル
LQFN-CLIP (RVF) 40 Ultra Librarian

購入と品質

記載されている情報:
  • RoHS
  • REACH
  • デバイスのマーキング
  • リード端子の仕上げ / ボールの原材料
  • MSL 定格 / ピーク リフロー
  • MTBF/FIT 推定値
  • 使用原材料
  • 認定試験結果
  • 継続的な信頼性モニタ試験結果
記載されている情報:
  • ファブの拠点
  • 組み立てを実施した拠点

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