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36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

Best-in-Class Ultra Low IQ Mini Buck Ideal for Automotive Applications

产品详情

The MAX20075D/MAX20076D/MAX25276D are small, synchronous buck converters with integrated high-side and low-side switches. The MAX20076D/MAX25276D are designed to deliver up to 1.2A and the MAX20075D up to 0.6A, with 3.5V to 36V input voltages, while using only3.5µA quiescent current at no load. The devices provide an accurate output voltage of ±2% within the normal operation input range of 6V to 18V. With 20ns minimum on-time capability, the converter is capable of large input-to-output conversion ratios. Voltage quality can be monitored by observing the PGOOD signal. The devices can operate in dropout by running at 99% duty cycle, making them ideal for automotive and industrial applications. The devices offer two fixed output voltages of 5V and 3.3V. In addition, the devices can be configured for 1V to 10V output voltages using an external resistor-divider. Frequency is internally fixed at 2.1MHz, which allows for small external components and reduced output ripple, and guarantees no AM interference. The devices automatically enter skip mode at light loads with ultra-low quiescent current of 3.5µA at no load. The devices offer pin-enabled spread-spectrum-frequency modulation designed to minimize EMI-radiated emissions due to the modulation frequency.

The MAX20075/MAX20076 /MAX25276 are available in small (3mm × 3mm) 12-pin TDFN and side-wettable TDFN packages with an exposed pad, and use very few external components.

Design Solution: How to Shrink Your ADAS ECUs: Wrap the Power Management Around the Signal Chain ›

Design Solution: Improve Your Automotive ECU Design with a Low-IQ Buck Converter ›


主要特征

  • Synchronous DC-DC Converter with Integrated FETs
    • MAX20075 = 0.6A IOUT
    • MAX20076/MAX25276 = 1.2A IOUT
    • 3.5µA Quiescent Current when in Standby Mode
  • 20ns Minimum On-Time Small Solution Size Saves Space
    • 2.1MHz Frequency
    • Programmable 1V to 10V Output for the Buck, or Fixed 5V/3.3V Options Available
    • Fixed 2.5ms Internal Soft-Start
    • Fixed Output Voltage with ±2% Output Accuracy (5V/3.3V), or Externally Resistor Adjustable (1V to 10V) with ±1.5% FB Accuracy
    • Innovative Current-Mode-Control Architecture Minimizes Total Board Space and BOM Count
  • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing
  • Protection Features and Operating Range Ideal for Automotive Applications
    • 3.5V to 36V Operating VIN Range
    • 40V Load-Dump Protection
    • 99% Duty-Cycle Operation with Low Dropout
    • -40°C to +125°C Automotive Temperature Range
    • AEC-Q100 Qualified

应用/用途

  • ADAS
  • null
  • null
  • null
  • 负载点
Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 3.5
VIN (V) (max) 40
VOUT1 (V) (min) 1
VOUT1 (V) (max) 10
IOUT1 (A) (max) 1.2
Switch Type Internal
Preset VOUT (V) 5
Output Adjust. Method Preset
Resistor
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 2100
Design Tools EE-Sim
Package/Pins TDFN-CU/12
Budgetary
Price (See Notes)
$1.35 @1k
查看更多

简化框图

MAX20075D, MAX20076D, MAX20076E, MAX25276D: Typical Application Circuit MAX20075D, MAX20076D, MAX20076E, MAX25276D: Typical Application Circuit Zoom icon

技术文档

设计与质量

单击下面的标题以查看详情页面

描述

MAX20075和MAX20076评估板(EV kit)提供经过验证的设计,用于评估MAX20075/ MAX20076/MAX25276 2.1MHz、高压、微型buck转换器,器件采用12引脚TDFN封装。全部元件均为汽车级温度范围。为便于评估,包含各种测试点和跳线。

评估板已安装MAX2007_ATCA/V+,也可用于评估MAX2007_ATCB/V+或MAX2007_ATCC/V+或MAX25276ATCA/VY,最少只需更换板上的U1元器件。

查看详情

特征

  • 3.5V至36V输入电源范围
  • 5V或3.3V固定输出电压,或者1V至10V可调输出电压
  • 提供高达0.6A/1.2A输出电流
  • 频率同步输入
  • 使能输入
  • 电压监测PGOOD输出
  • 经过验证的PCB布局
  • 完全装配并经过测试

描述

MAX20075和MAX20076评估板(EV kit)提供经过验证的设计,用于评估MAX20075/ MAX20076/MAX25276 2.1MHz、高压、微型buck转换器,器件采用12引脚TDFN封装。全部元件均为汽车级温度范围。为便于评估,包含各种测试点和跳线。

评估板已安装MAX2007_ATCA/V+,也可用于评估MAX2007_ATCB/V+或MAX2007_ATCC/V+或MAX25276ATCA/VY,最少只需更换板上的U1元器件。

查看详情

特征

  • 3.5V至36V输入电源范围
  • 5V或3.3V固定输出电压,或者1V至10V可调输出电压
  • 提供高达0.6A/1.2A输出电流
  • 频率同步输入
  • 使能输入
  • 电压监测PGOOD输出
  • 经过验证的PCB布局
  • 完全装配并经过测试

/cn/design/design-tools/ee-sim.html?

工具和模型

EE-Sim: 设计和仿真MAX20076D

创建设计

支持和培训

在Maxim的知识库中搜索您所需的答案。

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Maxim专业的应用工程师团队也可以为您解答技术问题,请 访问Maxim的 支持中心

参量

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 3.5
VIN (V) (max) 40
VOUT1 (V) (min) 1
VOUT1 (V) (max) 10
IOUT1 (A) (max) 1.2
Switch Type Internal
Preset VOUT (V) 5
Output Adjust. Method Preset
Resistor
Synchronous Switching? Yes
Power Good Signal Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 2100
Design Tools EE-Sim
Package/Pins TDFN-CU/12
Budgetary
Price (See Notes)
$1.35 @1k

主要特征

  • Synchronous DC-DC Converter with Integrated FETs
    • MAX20075 = 0.6A IOUT
    • MAX20076/MAX25276 = 1.2A IOUT
    • 3.5µA Quiescent Current when in Standby Mode
  • 20ns Minimum On-Time Small Solution Size Saves Space
    • 2.1MHz Frequency
    • Programmable 1V to 10V Output for the Buck, or Fixed 5V/3.3V Options Available
    • Fixed 2.5ms Internal Soft-Start
    • Fixed Output Voltage with ±2% Output Accuracy (5V/3.3V), or Externally Resistor Adjustable (1V to 10V) with ±1.5% FB Accuracy
    • Innovative Current-Mode-Control Architecture Minimizes Total Board Space and BOM Count
  • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing
  • Protection Features and Operating Range Ideal for Automotive Applications
    • 3.5V to 36V Operating VIN Range
    • 40V Load-Dump Protection
    • 99% Duty-Cycle Operation with Low Dropout
    • -40°C to +125°C Automotive Temperature Range
    • AEC-Q100 Qualified

应用/用途

  • ADAS
  • null
  • null
  • null
  • 负载点

描述

The MAX20075D/MAX20076D/MAX25276D are small, synchronous buck converters with integrated high-side and low-side switches. The MAX20076D/MAX25276D are designed to deliver up to 1.2A and the MAX20075D up to 0.6A, with 3.5V to 36V input voltages, while using only3.5µA quiescent current at no load. The devices provide an accurate output voltage of ±2% within the normal operation input range of 6V to 18V. With 20ns minimum on-time capability, the converter is capable of large input-to-output conversion ratios. Voltage quality can be monitored by observing the PGOOD signal. The devices can operate in dropout by running at 99% duty cycle, making them ideal for automotive and industrial applications. The devices offer two fixed output voltages of 5V and 3.3V. In addition, the devices can be configured for 1V to 10V output voltages using an external resistor-divider. Frequency is internally fixed at 2.1MHz, which allows for small external components and reduced output ripple, and guarantees no AM interference. The devices automatically enter skip mode at light loads with ultra-low quiescent current of 3.5µA at no load. The devices offer pin-enabled spread-spectrum-frequency modulation designed to minimize EMI-radiated emissions due to the modulation frequency.

The MAX20075/MAX20076 /MAX25276 are available in small (3mm × 3mm) 12-pin TDFN and side-wettable TDFN packages with an exposed pad, and use very few external components.

Design Solution: How to Shrink Your ADAS ECUs: Wrap the Power Management Around the Signal Chain ›

Design Solution: Improve Your Automotive ECU Design with a Low-IQ Buck Converter ›


简化框图

MAX20075D, MAX20076D, MAX20076E, MAX25276D: Typical Application Circuit MAX20075D, MAX20076D, MAX20076E, MAX25276D: Typical Application Circuit Zoom icon

技术文档

支持和培训

在Maxim的知识库中搜索您所需的答案。

过滤搜索

Maxim专业的应用工程师团队也可以为您解答技术问题,请 访问Maxim的 支持中心