MAX17630

4.5V to 36V, 1A, High-Efficiency, Synchronous Step-Down DC-DC Converter

A High-Efficiency, High-Voltage, Synchronous Step-Down DC-DC Converter with Integrated MOSFETs


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说明

The MAX17630 is a high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operating over an input-voltage range of 4.5V to 36V. It can deliver up to 1A current. The MAX17630 is available in three variants, MAX17630A, MAX17630B, and MAX17630C. The MAX17630A and MAX17630B are fixed 3.3V and fixed 5V output parts, respectively. The MAX17630C is an adjustable output voltage (0.9V up to 90% of VIN) part. Built-in compensation across the output-voltage range eliminates the need for external compensation components.

The MAX17630 features peak-current-mode control architecture. The device can be operated in forced pulse-width modulation (PWM), pulse-frequency modulation (PFM), or discontinuous-conduction mode (DCM) to enable high efficiency under full-load and light-load conditions. The MAX17630 offers a low minimum on-time that allows high switching frequencies and a smaller solution size.

The feedback-voltage regulation accuracy over -40°C to +125°C for the MAX17630A/MAX17630B/MAX17630C is ±1.2%.The device is available in a 16-pin (3mm x 3mm) TQFN package. Simulation models are available.

MAX17630: Typical Application Circuit MAX17630: Typical Application Circuit 放大+

关键特性

  • Reduces External Components and Total Cost
    • No Schottky - Synchronous Operation
    • Internal Compensation Components
    • All-Ceramic Capacitors, Compact Layout
  • Reduces Number of DC-DC Regulators to Stock
    • Wide 4.5V to 36V Input
    • Adjustable Output Voltage Range from 0.9V Up to 90% of VIN
    • Delivers Up to 1A Over the Temperature Range
    • 400kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
    • Available in a 16-Pin, 3mm x 3mm TQFN Package
  • Reduces Power Dissipation
    • Peak Efficiency of 95%
    • PFM and DCM Modes Enable Enhanced Light-Load Efficiency
    • Auxiliary Bootstrap Supply (EXTVCC) for Improved Efficiency
    • 2.8μA Shutdown Current
  • Operates Reliably in Adverse Industrial Environments
    • Hiccup-Mode Overload Protection
    • Adjustable and Monotonic Startup with Prebiased Output Voltage
    • Built-in Output-Voltage Monitoring with Active Low RESET
    • Programmable EN/UVLO Threshold
    • Overtemperature Protection
    • High Industrial -40°C to +125°C Ambient Operating Temperature Range / -40°C to +150°C Junction Temperature Range

应用

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MAX17630C5EVKIT: Evaluation Kit for the MAX17630 5V Output-Voltage Application
MAX17630AEVKIT: Evaluation Kit for the MAX17630 3.3V Output-Voltage Application
MAX17630BEVKIT: Evaluation Kit for the MAX17630

质量和环境数据

申请可靠性报告: MAX17630 
无铅封装的锡(Sn)晶须报告

CAD Symbols and Footprints

  • MAX17630AATE+
  • MAX17630BATE+
  • MAX17630CATE+
  • 型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

    备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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    类型 编号 标题
    评估板10383MAX17630BEVKIT Evaluation Kit for the MAX17630
    评估板10382MAX17630AEVKIT Evaluation Kit for the MAX17630 3.3V Output-Voltage Application
    评估板10336MAX17630C5EVKIT Evaluation Kit for the MAX17630 5V Output-Voltage Application