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Dual-Output, Configurable Multiphase Power-Supply Controller with PMBus Interface and Internal Buck Converter

非常に汎用性の高いPMBus対応、デュアル出力、マルチフェーズ電源コントローラ、最大6つのパワー段デバイスを駆動

製品の詳細

主な特長

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 4.5
VIN (V) (max) 16
VOUT1 (V) (min) 0.25
VOUT1 (V) (max) 1.35
IOUT1 (A) (max) 300
Switch Type External
Output Adjust. Method Resistor, PMBus
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 2
Switching Frequency (kHz) 800
Package/Pins TQFN/48
Budgetary
Price (See Notes)
4.45
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Technical Docs

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パラメーター

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 4.5
VIN (V) (max) 16
VOUT1 (V) (min) 0.25
VOUT1 (V) (max) 1.35
IOUT1 (A) (max) 300
Switch Type External
Output Adjust. Method Resistor, PMBus
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 2
Switching Frequency (kHz) 800
Package/Pins TQFN/48
Budgetary
Price (See Notes)
4.45

主な特長

  • Versatile and Flexible Controller
    • Generates Up to Six PWM Signals
    • Single- or Dual-Voltage Output with Flexible Phase Assignment
    • 0.5V to 2.0V Output-Voltage Range (MAX20754ETMA1+)
    • 0.25V to 2.0V Output-Voltage Range (MAX20754ETMA2+)
    • 4.5V to 16V Input-Voltage Range
    • 300kHz to 800kHz Switching Frequency Range
  • High-Power Density in a Small Overall Solution Size
    • Supports Coupled-Inductor Technology
    • Advanced Modulation Scheme Improves Transient Response
    • High-Loop Bandwidth Reduces Output-Capacitance Requirements
    • 48-Pin (7mm x 7mm) TQFN Package
    • Phase-Current Steering for Thermal Balancing
    • Efficient Integrated Internal Switching Regulator Powers Controller and Power Stages
  • Simple System Configuration
    • Four External Resistors Set Output Voltage, Bus Address, Switching Frequency, and Current Limit
  • Comprehensive PMBus Configuration, Control, and Telemetry
    • Compatible with PMBus Standard, Revision 1.3
    • 10kHz to 1MHz Bus Speed
    • PMBus Command Settings Stored in Nonvolatile Memory
    • Accurate Current, Voltage, and Temperature Reporting

アプリケーション/用途

  • ASIC、DSP、およびFPGA
  • 通信、ネットワーク、サーバー、およびストレージ機器
  • DDRメモリ
  • マイクロプロセッサチップセット

説明

The MAX20754 is a PMBus™-compatible, dualoutput, configurable multiphase power-supply controller for communication and networking applications. The controller is optimized for use with Maxim’s Dual Powertrain™ integrated power stages, which support a wide range of output current and voltage requirements. The controller generates six pulse-width modulated outputs, or “phases.” The number of phases per output channel is configurable to support high current requirements and one or two output voltages.

This highly versatile controller also includes an integrated switching regulator that supplies power for both the controller and the power-stage devices. The controller features accurate load-current reporting, power-stage temperature monitoring, fault detection, and extensive PMBus-command support. The controller allows the user to save desired PMBus parameters to nonvolatile memory.

The controller can be used with traditional discrete inductors, or with coupled-inductor topologies. Coupled inductors reduce the effective inductor value and size without increasing ripple current, reducing required output capacitance, and improving transient response.

The MAX20754 uses Maxim’s advanced modulation scheme (AMS) to provide improved transient response and reduce the required output capacitance compared to conventional pulse-width modulation (PWM) control. The AMS can be disabled if strict fixed-frequency PWM operation is desired.

簡易ブロック図

Technical Docs

サポートとトレーニング

技術質問への回答についてはナレッジベースで検索ください。

絞り込まれた検索

マキシムでは、お客様の技術的質問にお答えするため、アプリケーションエンジニアの専任チームも配置しています。 サポートセンター をご利用ください。