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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

主要特征

应用/用途

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) 0.6
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)
1.38
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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) 0.6
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 generateDesignEESIMUrl('http://maxim.transim.com/pwm2/designreq/Index?partId=22148', '')
Package/Pins TDFN-CU/12
Budgetary
Price (See Notes)
1.38

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
  • CAN
  • Cluster
  • Navigation
  • Point of Load

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

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在Maxim的知识库中搜索技术问题的答案

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