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Maxim产品 - MAX16935介绍

MAX16935 - 36V, 3.5A, 2.2MHz Step-Down Converters with 28µA Quiescent Current

MAX16935是Maxim美信半导体公司的一款DC-DC开关调节器产品，MAX16935是36V, 3.5A, 2.2MHz Step-Down Converters with 28µA Quiescent Current，本站介绍了MAX16935的封装应用图解、特点和优点、功能等，并给出了与MAX16935相关的Maxim元器件型号供参考。

MAX16935 - 36V, 3.5A, 2.2MHz Step-Down Converters with 28µA Quiescent Current - DC-DC开关调节器 - 3.5A, 36V, 2MHz Automotive Buck Converter with Low IQ and EMI Management - 美信半导体

产品概述

The MAX16935/MAX16939 are 3.5A current-mode step-down converters with integrated high-side and low-side MOSFETs designed to operate with an external Schottky diode for better efficiency. The low-side MOSFET enables fixed-frequency forced-PWM (FPWM) operation under light-load applications. The devices operate with input voltages from 3.5V to 36V, while using only 28µA quiescent current at no load. The switching frequency is resistor programmable from 220kHz to 2.2MHz and can be synchronized to an external clock. The devices’ output voltage is available as 3.3V/5V fixed or adjustable from 1V to 10V. The wide input voltage range along with its ability to operate at 98% duty cycle during undervoltage transients make the devices ideal for automotive and industrial applications.

Under light-load applications, the FSYNC logic input allows the devices to either operate in skip mode for reduced current consumption or fixed-frequency FPWM mode to eliminate frequency variation to minimize EMI. Fixed-frequency FPWM mode is extremely useful for power supplies designed for RF transceivers where tight emission control is necessary. Protection features include cycle-by-cycle current limit and thermal shutdown with automatic recovery. Additional features include a power-good monitor to ease power-supply sequencing and a 180° out-of-phase clock output relative to the internal oscillator at SYNCOUT to create cascaded power supplies with multiple devices.

The MAX16935/MAX16939 operate over the -40°C to +125°C automotive temperature range and are available in 16-pin (5mm x 5mm) TQFN-EP and 16-pin TSSOP-EP packages.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • Integration and High-Switching Frequency Saves Space
  • Integrated 3.5A High-Side Switch
  • Low-BOM-Count Current-Mode Control Architecture
  • Fixed Output Voltage with ±2% Accuracy or Externally Resistor Adjustable (1V to 10V)
  • 220kHz to 2.2MHz Switching Frequency withThree Operation Modes (Skip Mode, Forced Fixed-Frequency Operation, and External Frequency Synchronization)
  • Automatic LX Slew-Rate Adjustment for Optimum Efficiency Across Operating Frequency Range
  • 180° Out-of-Phase Clock Output at SYNCOUT Enables Cascaded Power Supplies for Increased Power Output
  • Spread-Spectrum Frequency Modulation Reduces EMI Emissions
  • Wide Input Voltage Range Supports Automotive Applications
  • 3.5V to 36V Input Voltage Range
  • Enable Input Compatible from 3.3V Logic Level to 42V
  • Robust Performance Supports Wide Range of Automotive Applications
  • -40°C to +125°C Automotive Temperature Range
  • Thermal-Shutdown Protection
  • AEC-Q100 Qualified
  • Power-Good Output Allows Power-Supply Sequencing
    • 热门应用
  • DC动力系统分配
  • 导航及无线电头单元
  • 负载点应用
    • 下面可能是您感兴趣的美信半导体公司DC-DC开关调节器元器件
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