MAX20073
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MAX20073

Single 2A/3A 2.2MHz Low-Voltage Step-Down DC-DC Converters

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Small and Efficient Synchronous Buck Converter with Low IQ for Point-of-Load Applications

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Info: : PRODUCTION tooltip
Part Details
Part Models 4
1ku List Price Starting From $1.50
Features
  • High-Feature Set in Ultra-Small Footprint
    • High-Efficiency DC-DC Converter
    • Up to 3A Output Current
    • 2.7V to 5.5V Operating Supply Voltage
    • Resistor-Adjustable or Factory-Preset Output Voltage
    • Synchronizable, 2.2MHz Switching-Frequency Enable Input
    • Active-Low RESET Output
    • Spread-Spectrum Enable Input
    • Forced-PWM and Skip Modes
    • Current-Mode Architecture
    • 3mm × 3mm × 0.85mm 10-Pin TDFN
  • High Precision
    • 107% Overvoltage Monitor
    • 93% Undervoltage Monitor
    • ±1.5% Output-Voltage Accuracy
    • Excellent Load Transient Performance
    • Overtemperature and Short-Circuit Protection
    • -40°C to +125°C Operating Temperature Range
Additional Details
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The MAX20073/MAX20074 high-efficiency switching regulator family delivers up to 3A load current from 0.5V to 3.8V. The devices operate from an input voltage range of 2.7V to 5.5V, making them ideal for on-board point-of-load and post-regulation applications. Total output error is less than ±1.5% over load, line, and temperature.

The devices feature fixed-frequency PWM mode of operation, with a 2.2MHz switching frequency. High-frequency operation enables an all-ceramic capacitor design and small external components.

The low-resistance on-chip switches ensure high efficiency at heavy loads while minimizing critical inductances, making the layout a much simpler task with respect to discrete solutions. Following a simple layout and footprint ensures first-pass success in new designs.

The devices provide an enable input, spread-spectrum enable input, and active-low RESET output. The output voltage can be preset at the factory to allow customers to achieve ±1.5% output-voltage accuracy without using expensive 0.1% external resistors. In addition, the output voltage can be set to any customer value by using two external resistors at the feedback with 0.5V internal reference. The device offers a fixed 0.85ms soft-start time.

The 10-pin TDFN exposed pad devices include overtemperature shutdown and overcurrent limiting. All devices are designed to operate over the -40°C to +125°C ambient temperature range.

Design Solution: Why Automotive ECUs Need a High-Performance POL Converter ›

Applications

  • Automotive
  • Point-of-Load
Part Models 4
1ku List Price Starting From $1.50

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX20073ATBA/V+
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MAX20073ATBA/V+T
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MAX20073ATBB/V+
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MAX20073ATBB/V+T
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

MAX20073EVKIT

Evaluation Kit for the MAX20073

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MAX20073EVKIT

Evaluation Kit for the MAX20073

Evaluation Kit for the MAX20073

Features and Benefits

  • 2.7V to 5.5V Input Voltage Range
  • 0.5V to 3.8V Output Voltage Range
    • Set by External Resistive Divider or Preprogrammed at Factory
    • Base EV Kit Configuration Set to 1.8V/2A Output
  • High-Frequency Switching (2.2MHz) Allows for an All-Ceramic Capacitor Design
  • Continuously Produces Output Current Up to 2A
  • Compact Solution Size
    • Externally Adjustable Output Implementation Fits Inside 65mm2 Area
    • Preprogrammed Output Implementation Fits Inside 55mm2 Area

Product Detail

The MAX20073 evaluation kit demonstrates the performance and behavior of the MAX20073, a part in the MAX20015–MAX20018/MAX20073/MAX20074 family of pin-compatible, low-voltage, step-down switching regulator ICs.

The regulator delivers current up to 2A at an output voltage between 0.5V and 3.8V. The device operates from a 2.7V to 5.5V input supply voltage, making it ideal for post-regulation and point-of-load applications. The total error over load, line, and temperature ranges is 1.5%. The base switching frequency is 2.2MHz, which allows for all-ceramic capacitor application designs. The regulator can either be synchronized to an external clock or placed in a power-saving skip mode for increased efficiency at light loads.

The regulator provides an enable input and fault flag output. The output voltage can be set using an external resistor-divider and an internal 0.5V reference. Alternatively, it can be programmed at the factory for a specific output voltage, achieving 1.5% output accuracy without resorting to expensive 0.1% resistors. The soft-start time and fault hold time can also be factory programmed.

The regulators include overtemperature shutdown and overcurrent limiting. They are designed to continuously operate over the -40°C to +125°C ambient temperature.

Applications

  • Automotive
  • Point-of-Load
reference details image

MAX20074EVKIT

MAX20074 Evaluation Kit: Evaluates: MAX20015, MAX20016, MAX20017, MAX20018, MAX20073, MAX20074

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MAX20074EVKIT

MAX20074 Evaluation Kit: Evaluates: MAX20015, MAX20016, MAX20017, MAX20018, MAX20073, MAX20074

MAX20074 Evaluation Kit: Evaluates: MAX20015, MAX20016, MAX20017, MAX20018, MAX20073, MAX20074

Features and Benefits

  • 2.7V to 5.5V Input Voltage Range
  • 0.5V to 3.8V Output Voltage Range
    • Set by External Resistive Divider or Preprogrammed at Factory
    • Base EV Kit Configuration Set to 1.8V/3A Output
  • High-Frequency Switching (2.2MHz) Allows for an All-Ceramic Capacitor Design
  • Continuously Produces Output Current Up to 3A
  • Compact Solution Size
    • Externally Adjustable Output Implementation Fits Inside 65mm2 Area
    • Preprogrammed Output Implementation Fits Inside 55mm2 Area

Product Detail

The MAX20074 evaluation kit (EV kit) demonstrates the performance and behavior of the MAX20074, a part in the MAX20015–MAX20018/MAX20073/MAX20074 family of pin-compatible, low-voltage, step-down switching regulator ICs.

The regulator delivers current up to 3A at an output voltage between 0.5V and 3.8V. The device operates from a 2.7V to 5.5V input supply voltage, making it ideal for post-regulation and point-of-load applications. The total error over load, line, and temperature ranges is 1.5%. The base switching frequency is 2.2MHz, which allows for all-ceramic capacitor application designs. The regulator can either be synchronized to an external clock or placed in a power-saving skip mode for increased efficiency at light loads.

The regulator provides an enable input and fault flag output. The output voltage can be set using an external resistor-divider and an internal 0.5V reference. Alternatively, it can be programmed at the factory for a specific output voltage, achieving 1.5% output accuracy without resorting to expensive 0.1% resistors. The soft-start time and fault hold time can also be factory programmed.

The regulators include overtemperature shutdown and overcurrent limiting. They are designed to continuously operate over the -40°C to +125°C ambient temperature range.

APPLICATIONS

  • Automotive
  • Point-of-Load
Tools & Simulations

Tools & Simulations 2

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