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Automotive, 36V, 4A/5A/6A Fully Integrated Synchronous Buck Converter

Industry's Smallest High Power Step Down Converter with High Efficiency

产品详情

主要特征

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 3
VIN (V) (max) 42
VOUT1 (V) (min) 0.8
VOUT1 (V) (max) 10
IOUT1 (A) (max) 4
Switch Type Internal
Preset VOUT (V) 5
Output Adjust. Method Preset
Preset or Adj
Resistor
Synchronous Switching? Yes
Power Good Signal Yes
IQ (mA) (typ) .01
# DC-DC Outputs 1
Switching Frequency (kHz) 400
2100
3000
Design Tools EE-Sim
Package/Pins FC2QFN/17
Budgetary
Price (See Notes)
1.7
缩小

简化框图

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

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参量

主要特征

  • Multiple Functions for Small Size
    • Operating VIN Range of 3V to 36V
    • 10µA Quiescent Current in Skip Mode
    • Synchronous DC-DC Converter with Integrated FETs
    • 400kHz, 2.1MHz, 2.3MHz, and 3MHz Fixed Frequency Options
    • Fixed 2.5ms Internal Soft-Start
    • Programmable 0.8V to 10V Output, or Fixed-OutputVoltages of 3.3V, 3.9V, 4.2V, and 5.0V
    • Other Fixed-Output Options Available between 2.9Vto 6V in 100mV Steps
    • 3.5mm x 3.75mm, 17-Pin and 15-Pin FC2QFN
    • Symmetrical package offers superior EMI performance
  • Dual-Phase Capablity
    • Can be used in Dual-Phase Configuration for High Power Design
    • Dynamic Current Sharing through Shared VEA Pin
    • Low-IQ Operation Capability in Dual Phase
  • High Precision
    • ±1% Output-Voltage Accuracy in FPWM Mode at No Load
    • Precise Output Voltage Monitoring with PGOOD
  • Robust for the Automotive Environment
    • Forced-PWM and Skip Mode Operation
    • 99% Duty-Cycle Operation with Low Dropout
    • Overtemperature and Short-Circuit Protection
    • -40°C to +125°C Junction Operating Temperature Range
    • 42V Load-Dump Tolerant
    • AEC-Q100 Qualified

应用/用途

  • Automotive
  • Infotainment Systems
  • ADAS and Other Safety-Critical Applications
  • Industrial
  • High-Voltage DC-DC Converters

描述

The MAX20404/MAX20405/MAX20406/MAX20406E ICs are tiny synchronous buck converters with integrated high-side and low-side switches. The ICs are designed to deliver up to 6A with wide input voltages range from 3V to 36V. Voltage quality can be monitored by observing the PGOOD signal. The MAX20404/MAX20405/MAX20406/MAX20406E can operate in dropout by running at 99% duty cycle making it ideal for automotive and industrial applications.

The MAX20404/MAX20405/MAX20406/MAX20406E offer programmable or fixed output voltages of 5V and 3.3V. Frequency is internally fixed at 2.1MHz (or 400kHz, 2.3MHz, or 3MHz) which allows for small external components, reduced output ripple, and guarantees no AM interference. MAX20404/MAX20405/MAX20406/MAX20406E automatically enter skip mode at light loads with ultra-low quiescent current of 10µA at no load. This family of products (including the MAX20408/10) offers a pin-to-pin compatible offering from 4A to 10A in a single-phase configuration, and up to 20A in a dual-phase configuration. This devices have also been optimized for dual-phase operation with very high current sharing accuracy. These devices can be ordered with spread-spectrum frequency modulation designed to minimize EMI-radiated emissions due to the modulation frequency.

The MAX20404/MAX20405/MAX20406/MAX20406E are available in a small 3.5mm x 3.75mm 17-pin FC2QFN package and uses very few external components.

简化框图

MAX20404, MAX20405, MAX20406: Simplified Block Diagram MAX20404, MAX20405, MAX20406: Simplified Block Diagram Zoom icon

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心

采样:
选择上方“样片”按钮将重定向至第三方ADI样片网站。登录后,所选部件将转移到您在此网站上的购物车。如果您之前从未使用过此网站,请创建一个新帐户。有关此样片网站的任何问题,请联系SampleSupport@analog.com