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MAX17662

MAX17662

3.5V to 36V, 2A, High-Efficiency, Synchronous Step-Down DC-DC Converter

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

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概述

说明

The MAX17662 is a high-efficiency, synchronous step-down DC-DC converter with integrated MOSFETs operating over an input-voltage range of 3.5V to 36V. It can deliver up to 2A current. Output voltage is programmable from 0.6V up to 90% of VIN. Built-in compensation across the output-voltage range eliminates the need for external compensation components.

The MAX17662 features a peak-current-mode control architecture. The MAX17662 can be operated in forced pulse-width modulation (PWM), or discontinuous-conduction mode (DCM) to enable high efficiency under full-load and light-load conditions. The MAX17662 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 is ±1.33%. The device is available in a 16-pin (3mm x 3mm) TQFN package. Simulation models are available.

MAX17662: Block Diagram MAX17662: Block Diagram 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 3.5V to 36V Input
    • Adjustable Output Voltage Range from 0.6V up to 90% of VIN
    • Delivers Up to 2A Over the Temperature Range
    • 400kHz to 2.2MHz Adjustable Frequency
    • Available in a 16-pin, 3mm x 3mm TQFN Package
  • Reduces Power Dissipation
    • Peak Efficiency of 95%
    • DCM Mode Enable Enhanced Light-Load Efficiency
    • Wide 2.4V to 12V Bootstrap Bias Input (EXTVCC) for Improved Efficiency
    • 6.5μA 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

  • 基站电源
  • 配电稳压器
  • 通用负载点电源
  • 高压、单板系统
  • 工业控制电源
  • 壁式变压器稳压

参数规格

Part NumberVIN
(V)		VIN
(V)		VOUT1
(V)		VOUT1
(V)		Output Adjust. MethodIOUT1
(A)		Switch TypeSynchronous SwitchingDC-DC OutputsOper. Freq.
(kHz)		Design ToolsPackage/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX17662 NEW!3.5360.632.4Resistor2InternalYes1400EE-Sim
TQFN-CU/16
$1.55 @1k
查看所有Step-Down Switching Regulators (402)
Pricing Notes:
价格仅供参考，用于同类产品的比较。所提供报价为美元，需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题，请参考：价格与供货网站或与指定代理商联系。

设计资源


MAX17662BEVKITA: Evaluation Kit for the MAX17662 in 3.3V Output-Voltage Application
MAX17662BEVKITB: Evaluation Kit for the MAX17662 in 5V Output-Voltage Application

质量和环境数据

申请可靠性报告: MAX17662 
无铅封装的锡（Sn）晶须报告

工具和模型

  • EE-Sim: MAX17662 设计和仿真

    • 质量与环境

    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。

    质量管理体系 >
    环境管理体系 >

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    工具和模型

    参考设计

    类型 编号 标题
    评估板10491MAX17662BEVKITB Evaluation Kit for the MAX17662 in 5V Output-Voltage Application
    评估板10452MAX17662BEVKITA Evaluation Kit for the MAX17662 in 3.3V Output-Voltage Application