MAX17644

製造中

4.5V~36V、2.7A、高効率、同期整流式降圧DC/DCコンバータ

広入力電圧、2.7A FET内蔵同期整流バックコンバータ、産業アプリケーションに最適

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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.J)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。

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。

製品情報

  • 外付け部品数および総コストを削減
    • ショットキー不要の同期整流動作
    • 内部補償部品
    • 全セラミック・コンデンサ、小型レイアウト
  • DC/DCレギュレータの在庫数を削減
    • 広い入力電圧範囲:4.5V~36V
    • 可変出力電圧範囲:0.9V~VINの90%
    • 温度範囲内で最大2.7Aを供給
    • 外部クロック同期を備えた可変周波数:400kHz~2.2MHz
    • 16ピンTQFNパッケージ(3mm × 3mm)で提供
  • 消費電力を低減
    • ピーク効率:95.41%
    • PFMおよびDCMモードにより軽負荷効率の向上を実現
    • 補助ブートストラップ電源(EXTVCC)により効率を向上
    • シャットダウン電流:2.8µA
  • 過酷な産業環境で信頼性の高い動作
    • ヒカップ・モード過負荷保護
    • プリバイアスされた出力電圧での調整可能で単調な起動
    • 出力電圧監視内蔵(アクティブローRESET)
    • 設定可能なEN/UVLO閾値
    • 過熱保護
    • CISPR32 Class B準拠
    • 広い周囲動作温度範囲:-40℃~+125℃ /ジャンクション温度範囲:-40℃~+150℃
MAX17644
4.5V~36V、2.7A、高効率、同期整流式降圧DC/DCコンバータ
MAX17644 Block Diagram MAX17644 Circuit Diagram MAX17644 Pin Configuration
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SIMPLISモデル 1


評価用キット

MAX17644BEVKIT

Evaluation Kit for the MAX17644 in 3.3V and 5V Output-Voltage Applications

機能と利点

  • Wide 4.5V to 36V Input Voltage Range
  • MAX17644AEVKIT# Offers High 87.28% Efficiency (VIN1 = 24V, VOUT1 = 3.3V, IOUT1 = 2.7A)
  • MAX17644BEVKIT# Offers High 90.77% Efficiency (VIN2 = 24V, VOUT2 = 5V, IOUT2 = 2.7A)
  • MAX17644C5EVKIT# Offers High 90.77% Efficiency (VIN3 = 24V, VOUT3 = 5V, IOUT3 = 2.7A)
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Selectable PWM, PFM, and DCM Modes of Operation
  • Adjustable Soft-Start Time
  • Active-Low RESET Outputs, with Pullup Resistor to Respective VCC
  • Provision to Synchronize the Converters to an External Clock Source
  • Overcurrent and Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested
  • Complies with CISPR32 (EN55032) Class B Conducted and Radiated Emissions

製品詳細

The MAX17644 evaluation kit (comprising the MAX17644AEVKIT#, MAX17644BEVKIT#, and MAX17644C5EVKIT# EV kits) provides proven designs to evaluate the MAX17644A, MAX17644B, and MAX17644C high-efficiency, high-voltage Himalaya synchronous DC-DC converters.

The MAX17644AEVKIT# EV kit delivers up to 2.7A, with a fixed 3.3V output (VOUT1). The EV kit is configured to operate at 500kHz (fSW1) switching frequency over a 4.5V to 36V input voltage range.

The MAX17644BEVKIT# EV kit delivers up to 2.7A, with a fixed 5V output (VOUT2). The EV kit is configured to operate at 500kHz (fSW2) switching frequency over a 6.5V to 36V input voltage range.

The MAX17644C5EVKIT# EV kit delivers up to 2.7A, with a configured 5V output (VOUT3). The EV kit is also configured to operate at 500kHz (fSW3) switching frequency over a 6.5V to 36V input voltage range.

The EV kits are configured to demonstrate the optimum performance and component size. The EV kits provide provisions for enable/disable settings and selecting the modes of operation (pulse-width modulation/pulsefrequency modulation/discontinuous-conduction mode [PWM/PFM/DCM]). The EV kits feature programmable input undervoltage-lockout (UVLO), adjustable soft-start, open-drain active-low RESET signal, and external clock synchronization. The EV kits also provide a good layout example, which is optimized for conducted, radiated EMI, and thermal performance. For more details, refer to the Benefits and Features section in the MAX17644 IC data sheet.

Applications

  • Base Station Power Supplies
  • Distributed Supply Regulation
  • General-Purpose Point-of-Load
  • High Voltage Single-Board Systems
  • Industrial Control Power Supplies
  • Wall Transformer Regulation

MAX17644C5EVKIT

Evaluation Kit for the MAX17644 in 3.3V and 5V Output-Voltage Applications

機能と利点

  • Wide 4.5V to 36V Input Voltage Range
  • MAX17644AEVKIT# Offers High 87.28% Efficiency (VIN1 = 24V, VOUT1 = 3.3V, IOUT1 = 2.7A)
  • MAX17644BEVKIT# Offers High 90.77% Efficiency (VIN2 = 24V, VOUT2 = 5V, IOUT2 = 2.7A)
  • MAX17644C5EVKIT# Offers High 90.77% Efficiency (VIN3 = 24V, VOUT3 = 5V, IOUT3 = 2.7A)
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Selectable PWM, PFM, and DCM Modes of Operation
  • Adjustable Soft-Start Time
  • Active-Low RESET Outputs, with Pullup Resistor to Respective VCC
  • Provision to Synchronize the Converters to an External Clock Source
  • Overcurrent and Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested
  • Complies with CISPR32 (EN55032) Class B Conducted and Radiated Emissions

製品詳細

The MAX17644 evaluation kit (comprising the MAX17644AEVKIT#, MAX17644BEVKIT#, and MAX17644C5EVKIT# EV kits) provides proven designs to evaluate the MAX17644A, MAX17644B, and MAX17644C high-efficiency, high-voltage Himalaya synchronous DC-DC converters.

The MAX17644AEVKIT# EV kit delivers up to 2.7A, with a fixed 3.3V output (VOUT1). The EV kit is configured to operate at 500kHz (fSW1) switching frequency over a 4.5V to 36V input voltage range.

The MAX17644BEVKIT# EV kit delivers up to 2.7A, with a fixed 5V output (VOUT2). The EV kit is configured to operate at 500kHz (fSW2) switching frequency over a 6.5V to 36V input voltage range.

The MAX17644C5EVKIT# EV kit delivers up to 2.7A, with a configured 5V output (VOUT3). The EV kit is also configured to operate at 500kHz (fSW3) switching frequency over a 6.5V to 36V input voltage range.

The EV kits are configured to demonstrate the optimum performance and component size. The EV kits provide provisions for enable/disable settings and selecting the modes of operation (pulse-width modulation/pulsefrequency modulation/discontinuous-conduction mode [PWM/PFM/DCM]). The EV kits feature programmable input undervoltage-lockout (UVLO), adjustable soft-start, open-drain active-low RESET signal, and external clock synchronization. The EV kits also provide a good layout example, which is optimized for conducted, radiated EMI, and thermal performance. For more details, refer to the Benefits and Features section in the MAX17644 IC data sheet.

Applications

  • Base Station Power Supplies
  • Distributed Supply Regulation
  • General-Purpose Point-of-Load
  • High Voltage Single-Board Systems
  • Industrial Control Power Supplies
  • Wall Transformer Regulation

MAX17644AEVKIT

Evaluation Kit for the MAX17644 in 3.3V and 5V Output-Voltage Applications

機能と利点

  • Wide 4.5V to 36V Input Voltage Range
  • MAX17644AEVKIT# Offers High 87.28% Efficiency (VIN1 = 24V, VOUT1 = 3.3V, IOUT1 = 2.7A)
  • MAX17644BEVKIT# Offers High 90.77% Efficiency (VIN2 = 24V, VOUT2 = 5V, IOUT2 = 2.7A)
  • MAX17644C5EVKIT# Offers High 90.77% Efficiency (VIN3 = 24V, VOUT3 = 5V, IOUT3 = 2.7A)
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Selectable PWM, PFM, and DCM Modes of Operation
  • Adjustable Soft-Start Time
  • Active-Low RESET Outputs, with Pullup Resistor to Respective VCC
  • Provision to Synchronize the Converters to an External Clock Source
  • Overcurrent and Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested
  • Complies with CISPR32 (EN55032) Class B Conducted and Radiated Emissions

製品詳細

The MAX17644 evaluation kit (comprising the MAX17644AEVKIT#, MAX17644BEVKIT#, and MAX17644C5EVKIT# EV kits) provides proven designs to evaluate the MAX17644A, MAX17644B, and MAX17644C high-efficiency, high-voltage Himalaya synchronous DC-DC converters.

The MAX17644AEVKIT# EV kit delivers up to 2.7A, with a fixed 3.3V output (VOUT1). The EV kit is configured to operate at 500kHz (fSW1) switching frequency over a 4.5V to 36V input voltage range.

The MAX17644BEVKIT# EV kit delivers up to 2.7A, with a fixed 5V output (VOUT2). The EV kit is configured to operate at 500kHz (fSW2) switching frequency over a 6.5V to 36V input voltage range.

The MAX17644C5EVKIT# EV kit delivers up to 2.7A, with a configured 5V output (VOUT3). The EV kit is also configured to operate at 500kHz (fSW3) switching frequency over a 6.5V to 36V input voltage range.

The EV kits are configured to demonstrate the optimum performance and component size. The EV kits provide provisions for enable/disable settings and selecting the modes of operation (pulse-width modulation/pulsefrequency modulation/discontinuous-conduction mode [PWM/PFM/DCM]). The EV kits feature programmable input undervoltage-lockout (UVLO), adjustable soft-start, open-drain active-low RESET signal, and external clock synchronization. The EV kits also provide a good layout example, which is optimized for conducted, radiated EMI, and thermal performance. For more details, refer to the Benefits and Features section in the MAX17644 IC data sheet.

Applications

  • Base Station Power Supplies
  • Distributed Supply Regulation
  • General-Purpose Point-of-Load
  • High Voltage Single-Board Systems
  • Industrial Control Power Supplies
  • Wall Transformer Regulation

MAX17644BEVKIT
Evaluation Kit for the MAX17644 in 3.3V and 5V Output-Voltage Applications
MAX17644C5EVKIT
Evaluation Kit for the MAX17644 in 3.3V and 5V Output-Voltage Applications
MAX17644AEVKIT
Evaluation Kit for the MAX17644 in 3.3V and 5V Output-Voltage Applications

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