MAX17502

60V, 1A, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter

60V Synchronous Buck Converter with Internal FETs Enables High Efficiency


Please check latest availability status for a specific part variant.

Description


Create a design and simulate using EE-Sim®: MAX17502

The MAX17502 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4.5V to 60V input voltage range. This device is offered in a fixed 3.3V, 5V, or adjustable output voltage (0.9V to 92%VIN) while delivering up to 1A of current. The output voltage is accurate to within ±1.7% over -40°C to +125°C. The MAX17502 is available in compact TDFN and TSSOP packages. Simulation models are available.

The device features peak-current-mode control with pulse-width modulation (PWM) and operates with fixed switching frequency at any load. The low-resistance, on-chip MOSFETs ensure high efficiency at full load and simplify the layout.

A programmable soft-start feature allows users to reduce input inrush current. The device also incorporates an output enable/undervoltage lockout pin (EN/UVLO) that allows the user to turn on the part at the desired input-voltage level. An open-drain active-low RESET pin provides a delayed power-good signal to the system upon achieving successful regulation of the output voltage.

MAX17502: Block Diagram MAX17502: Block Diagram Enlarge+

Key Features

  • Eliminates External Components and Reduce Total Cost
    • No Schottky-Synchronous Operation for High Efficiency and Reduced Cost
    • Internal Compensation and Feedback Divider for 3.3V and 5V Fixed Outputs
    • All-Ceramic Capacitors, Ultra-Compact Layout
  • Reduces Number of DC-DC Regulators to Stock
    • Wide 4.5V to 60V Input Voltage Range
    • 0.9V to 92%VIN Adjustable Output Voltage
    • Delivers up to 1A
    • 600kHz and 300kHz Switching Frequency Options
    • Available in a 10-Pin, 3mm × 2mm TDFN and 14-Pin, 5mm × 4.4mm TSSOP Packages
  • Reduces Power Dissipation
    • Peak Efficiency > 90%
    • Shutdown Current = 0.9µA (typ)
  • Operates Reliably in Adverse Industrial Environments
    • Hiccup-Mode Current Limit, Sink Current Limit, and Autoretry Startup
    • Built-In Output-Voltage Monitoring (Open-Drain Active-Low RESET Pin)
    • Resistor-Programmable EN/UVLO Threshold
    • Adjustable Soft-Start and Prebiased Power-Up
    • High Industrial -40°C to +125°C Ambient Operating Temperature Range/-40°C to +150°C Junction Temperature Range

Applications/Uses

  • Base Station, VOIP, Telecom
  • Battery-Powered Equipment
  • General-Purpose Point-of-Load
  • Home Theater
  • HVAC and Building Control
  • Industrial Process Control

MAX17502ETEVKIT: Evaluation Kit for the MAX17502E
MAX17502FTEVKIT: Evaluation Kit for the MAX17502F
MAX17502GTEVKIT: Evaluation Kit for the
MAX17502HEVKIT: Evaluation Kit for the MAX17502H
MAX17502GTEVKITE: Evaluation Kit for the MAX17502 in TDFN Package

Tools & Models

  • EE-Sim: Design & Simulate MAX17502
  • MAX17502 SIMPLIS Schematic
  • Product Reliability Reports: MAX17502.pdf 
    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

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