LTC3855

製造中

差動リモート検出付きのデュアル、マルチフェーズ同期整流式DC/DC コントローラ

製品モデル
8
1Ku当たりの価格
最低価格:$3.81
利用上の注意

アナログ・デバイセズ社は、提供する情報が正確で信頼できるものであることを期していますが、その情報の利用に関して、あるいはその利用によって生じる第三者の特許やその他の権利の侵害に関して一切の責任を負いません。また、アナログ・デバイセズ社の特許または特許の権利の使用を明示的または暗示的に許諾するものでもありません。仕様は予告なしに変更する場合があります。本紙記載の商標および登録商標は、各社の所有に属します。


本データシートの英語以外の言語への翻訳はユーザの便宜のために提供されるものであり、リビジョンが古い場合があります。最新の内容については、必ず最新の英語版をご参照ください。

なお、日本語版のデータシートは基本的に「Rev.0」(リビジョン0)で作成されています。そのため、英語版が後に改訂され、複数製品のデータシートがひとつに統一された場合、同じ「Rev.0」の日本語版のデータシートが異なる製品のデータシートとして表示されることがあります。たとえば、「ADM3307E」の場合、日本語データシートをクリックすると「ADM3311E」が表示されます。これは、英語版のデータシートが複数の製品で共有できるように1本化され、「ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E」(Rev.G)と改訂されたからで、決して誤ってリンクが張られているわけではありません。和文化されたデータシートを少しでも有効に活用していただくためにこのような方法をとっておりますので、ご了解ください。

Viewing:

製品の詳細

  • 180° 位相をずらしたデュアル・コントローラにより、必要な入力容量と電源によるノイズを低減
  • 高効率: 最大95%
  • RSENSE またはDCRによる電流検出
  • プログラム可能なDCR 温度補償
  • ±0.75%の0.6V 出力電圧精度
  • フェーズロック可能な固定周波数: 250kHz~770kHz
  • 真のリモート検出差動アンプ
  • デュアルNチャネルMOSFET 同期ドライブ
  • 広いVIN範囲: 4.5V~38V
  • VOUT範囲: 0.6V~12.5V (差動アンプなし)
  • VOUT範囲: 0.6V~3.3V (差動アンプ付き)
  • クロック入出力により、最多12フェーズ動作が可能
  • 調整可能なソフトスタートまたはVOUTトラッキング
  • フォールドバック出力電流制限
  • 出力過電圧保護
  • 40ピン(6mm × 6mm) QFN および38ピンFEパッケージ
LTC3855
差動リモート検出付きのデュアル、マルチフェーズ同期整流式DC/DC コントローラ
High Efficiency Dual 1.8V/1.2V Step-Down Converter Load Step  (Forced Continuous Mode) Product Package 1 Product Package 2
myAnalogに追加

myAnalogの製品セクション(通知受け取り)、既存/新規プロジェクトに製品を追加する。

新規プロジェクトを作成
質問する
サポート

アナログ・デバイセズのサポート・ページはアナログ・デバイセズへのあらゆるご質問にお答えするワンストップ・ポータルです。


ドキュメント

データシート

これは最新改訂バージョンのデータシートです。

さらに詳しく
myAnalogに追加

myAnalogの製品セクション(通知受け取り)、既存/新規プロジェクトに製品を追加する。

新規プロジェクトを作成

ハードウェア・エコシステム

製品モデル 製品ライフサイクル 詳細
デジタル・パワー・システム・マネージメント(PSM) 1
LTC2974 新規設計に推奨 正確な出力電流測定を特長とする4チャンネルPMBusパワーシステム・マネージャ
デュアル電源モニタ 1
LTC2960 新規設計に推奨 36Vナノ電流2入力電圧モニタ
高電圧ホットスワップ・コントローラ 1
LTC4364 新規設計に推奨 理想ダイオードを備えたサージ・ストッパー
複数出力降圧レギュレータ 1
LTC3880 新規設計に推奨 パワー・システム・マネージメントを搭載したデュアル出力PolyPhase 降圧DC/DCコントローラ
Modal heading
myAnalogに追加

myAnalogの製品セクション(通知受け取り)、既存/新規プロジェクトに製品を追加する。

新規プロジェクトを作成

ツールおよびシミュレーション

LTspice

LTspice®は、無料で提供される強力で高速な回路シミュレータと回路図入力、波形ビューワに改善を加え、アナログ回路のシミュレーションを容易にするためのモデルを搭載しています。

 

LTpowerCAD

LTpowerCAD®は、電力段のデバイスの選択、詳細な電力効率の提供、ループのボーデ線図の安定性および負荷過渡応答解析の敏速な表示などを行うと共に、シミュレーション用にLTspiceにエクスポートできる電源設計プログラムです。


評価用キット

eval board
DC1617A-A

LTC3855EFE Demo Board | Dual Output VIN = 4.5V to 26V, VOUT1 = 2.5V @ 15A, VOUT2 = 1.8V @ 15A

製品詳細

Demonstration circuit DC1617A is a dual output synchronous buck converter featuring the LTC3855EFE in a high density, two sided drop-in layout with power components on the top and the control circuit on the bottom. The package style for the LTC3855EFE is a 38-lead TSSOP. The board comes in two assembly types. The –A assembly provides 2.5V/15A and 1.8V/15A from a 4.5V to 26V input. DCR inductor sensing is used to provide the highest efficiency. The current limit is NTC compensated to provide the minimal amount of variation over temperature. The -A also features remote sensing for VOUT2.

eval board
DC1617A-B

LTC3855EFE Demo Board | Dual Output VIN = 13V to 36V, VOUT1 = 12V @ 6A, VOUT2 = 5V @ 10A

製品詳細

Demonstration circuit DC1617A is a dual output synchronous buck converter featuring the LTC3855EFE in a high density, two sided drop-in layout with power components on the top and the control circuit on the bottom. The package style for the LTC3855EFE is a 38-lead TSSOP. The board comes in two assembly types. The –B assembly is a high power, 12V/6A and 5V/10A converter with a 13V to 36V input. A sense resistor is used to provide a precise current limit. Unlike the –A assembly, on the –B assembly the remote sense diff amp is bypassed since VOUT2 is > 3.3V.

eval board
DC1441A

LTC3855EUJ Demo Board | Dual Output, VIN = 4.5V to 14V, VOUT1 = 1.8V @ 17A, VOUT2 = 1.2V @ 17A

製品詳細

Demonstration circuit DC1441A is a dual output synchronous buck converter featuring the LTC3855EUJ. The board provides two outputs of 1.8V/17A and 1.2V/17A from an input voltage of 4.5V to 14V at a switching frequency of 400kHz.

eval board
DC1586A

LTC3855EUJ Demo Board | Dual Output, VIN = 4.5V to 25V, VOUT1 = 3.3V @ 5A, VOUT2 = 2.5V @ 5A

製品詳細

Demonstration circuit 1586A is a high efficiency, dual-output (3.3V and 2.5V), synchronous buck converter with 4.5V to 25V input range. It can supply 5A maximum load current at 3.3V and 2.5V outputs. The demo board uses the LTC3855EUJ controller. The LTC3855 is a feature-rich dual-output dual-phase synchronous buck controller with on-chip drivers, remote output voltage sensing (VOUT2) and inductor DCR temperature compensation.

DC1617A-A
LTC3855EFE Demo Board | Dual Output VIN = 4.5V to 26V, VOUT1 = 2.5V @ 15A, VOUT2 = 1.8V @ 15A
DC1617A-A - Schematic
DC1617A-B
LTC3855EFE Demo Board | Dual Output VIN = 13V to 36V, VOUT1 = 12V @ 6A, VOUT2 = 5V @ 10A
DC1617A-A - Schematic
DC1441A
LTC3855EUJ Demo Board | Dual Output, VIN = 4.5V to 14V, VOUT1 = 1.8V @ 17A, VOUT2 = 1.2V @ 17A
DC1441A - Schematic
DC1586A
LTC3855EUJ Demo Board | Dual Output, VIN = 4.5V to 25V, VOUT1 = 3.3V @ 5A, VOUT2 = 2.5V @ 5A
DC1586A - Schematic

リファレンス・デザイン

DK-DEV-5AGXB3NES Dev Kit
Altera Arria V GX FPGA Development Kit Circuits from the Lab®

機能と利点

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
Arria V SoC Development Kit
Altera Arria V SoC Development Kit and SoC Embedded Design Suite Circuits from the Lab®

機能と利点

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
DK-DEV-5CGTD9N Dev Kit
Altera Cyclone V GT FPGA Development Kit Circuits from the Lab®

機能と利点

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
DK-DEV-5CGXC7NES Dev Kit
Altera Cyclone V GX Development Kit (Discontinued) Circuits from the Lab®

機能と利点

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
DC934A Demo Board for DK-DEV-5CSXC6N
Altera Cyclone V SoC Development Kit and SoC Embedded Design Suite Circuits from the Lab®

機能と利点

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
DK-DEV-5SGSMD5N DSP Dev Kit
Altera DSP Development Kit, Stratix V Edition Circuits from the Lab®

機能と利点

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
DK-DEV-5SGXEA7N Dev Kit
Altera Stratix V GX FPGA Development Kit Circuits from the Lab®

機能と利点

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
DK-SI-5SGTMC7N Signal Integrity Kit
Altera Transceiver Signal Integrity Development Kit, Stratix V GT Edition Circuits from the Lab®

機能と利点

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
DK-SI-5SGXEA7N Kit
Altera Transceiver Signal Integrity Kit, Stratix V GX Edition Circuits from the Lab®

機能と利点

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
Stratix V Advanced System Development Board
Stratix V Advanced System Development Board Circuits from the Lab®

機能と利点

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
Terasic DE2i-150 Cyclone IV Board
Terasic DE2i-150 Cyclone IV Board Circuits from the Lab®

機能と利点

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
DK-DEV-5AGTD7N Dev Kit
Altera Arria V GT FPGA Development Kit Circuits from the Lab®

機能と利点

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
Altera Arria V GX FPGA Development Kit
DK-DEV-5AGXB3NES Dev Kit
LTC Parts List
DK-DEV-5AGXB3NES Block Diagram
DK-DEV-5AGXB3NES Power Tree
Altera Arria V SoC Development Kit and SoC Embedded Design Suite
Arria V SoC Development Kit
DK-DEV-5ASTD5NES Block Diagram
DK-DEV-5ASTD5NES Power Tree
Altera Cyclone V GT FPGA Development Kit
DK-DEV-5CGTD9N Dev Kit
DK-DEV-5CGTD9N Block Diagram
DK-DEV-5CGTD9N Power Tree
DK-DEV-5CGTD9N Power Tree No TI DDR Regulator
Altera Cyclone V GX Development Kit (Discontinued)
DK-DEV-5CGXC7NES Dev Kit
LTC Parts List
DK-DEV-5CGXC7NES Block Diagram
DK-DEV-5CGXC7NES Block Diagram
DK-DEV-5CGXC7NES Power Tree
Altera Cyclone V SoC Development Kit and SoC Embedded Design Suite
DC934A Demo Board for DK-DEV-5CSXC6N
DK-DEV-5CSXC6N Dev Kit
DK-DEV-5CSXC6N Block Diagram
DK-DEV-5CSXC6N Power Tree
DK-DEV-5CSXC6N LTC Power Tree
Altera DSP Development Kit, Stratix V Edition
DK-DEV-5SGSMD5N DSP Dev Kit
LTC Parts List
DK-DEV-5SGSMD5N Block Diagram
DK-DEV-5SGSMD5N Power Tree
Altera Stratix V GX FPGA Development Kit
DK-DEV-5SGXEA7N Dev Kit
LTC Parts List
DK-DEV-5SGXEA7N Block Diagram
DK-DEV-5SGXEA7N Power Tree
DK-DEV-5SGXEA7N Power Tree No TI
Altera Transceiver Signal Integrity Development Kit, Stratix V GT Edition
DK-SI-5SGTMC7N Signal Integrity Kit
LTC Parts List
DK-SI-5SGTMC7N Block Diagram
DK-SI-5SGTMC7N Power Tree
Altera Transceiver Signal Integrity Kit, Stratix V GX Edition
DK-SI-5SGXEA7N Kit
LTC Parts List
DK-SI-5SGXEA7N Block Diagram
DK-SI-5SGXEA7N Block Diagram
DK-SI-5SGXEA7N Power Tree
Stratix V Advanced System Development Board
Stratix V Advanced System Development Board
Stratix V Advanced System Development Board Block Diagram
Stratix V Advanced Systems Development Board Power Tree
Terasic DE2i-150 Cyclone IV Board
Terasic DE2i-150 Cyclone IV Board
LTC Parts List
Terasic DE2i-150 Cyclone IV Block Diagram
DE2i-150 Power Tree
Altera Arria V GT FPGA Development Kit
DK-DEV-5AGTD7N Dev Kit
LTC Parts List
DK-DEV-5AGTD7N Block Diagram
DK-DEV-5AGTD7N Block Diagram
DK-DEV-5AGTD7N Power Tree

最新のディスカッション

最近表示した製品