MAX17760

4.5V to 76V, 300mA, High-Efficiency, Synchronous Step-Down DC-DC Converter

76V Synchronous Buck Converter with Internal FETs Enables High Efficiency and Low Temperature Rise


Please check latest availability status for a specific part variant.

Description

The Himalaya series of voltage regulator ICs, power modules, and chargers enable cooler, smaller, and simpler power supply solutions. The MAX17760 is a high-efficiency, high-voltage, Himalaya synchronous step-down DC-DC converter with integrated MOSFETs operating over an input-voltage range of 4.5V to 76V. The device can deliver up to 300mA current. Output voltage is programmable from 0.8V up to 88% of input voltage (VIN). Built-in control loop compensation eliminates the need for external components.

The MAX17760 features a peak-current-mode control architecture. The device can be operated in either the forced pulse-width modulation (PWM) or pulse-frequency modulation (PFM) control schemes. Forced PWM mode provides constant frequency operation at all loads for frequency sensitive applications, while PFM mode provides superior light-load efficiency by skipping pulses. The device integrates an open drain active-low RESET output voltage monitor, adjustable input undervoltage lockout (EN/UVLO) and programmable soft-start.

The feedback voltage regulation accuracy over -40°C to +125°C is +1.6% to -1.7%. The MAX17760 is available in a compact 12-pin (3mm x 3mm) TDFN package. Simulation models are available.

MAX17760: Simplified Application Circuit MAX17760: Simplified Application Circuit Enlarge+

Key Features

  • Reduces External Components and Total Cost
    • No Schottky—Synchronous Operation
    • Internal Compensation Components
    • All-Ceramic Capacitors, Compact Layout
  • Reduces Number of DC-DC Regulators to Stock
    • Wide 4.5V to 76V Input
    • Adjustable Output Range from 0.8V up to 88% of VIN
    • Up to 300mA Output Current
    • 200kHz, 300kHz, 400kHz, and 600kHz Programmable Switching Frequency with External Clock Synchronization
  • Reduces Power Dissipation
    • 93% Peak Efficiency
    • PFM Mode Enables Enhanced Light-Load Efficiency
    • EXTVCC Bootstrap Input for Improved Efficiency
    • 5µA Shutdown Current
  • Operates Reliably in Adverse Industrial Environments
    • Built-in Hiccup Mode Overload Protection
    • Programmable Soft-Start and Prebiased Power-up
    • Built-in Output-Voltage Monitoring with active-low RESET
    • Programmable EN/UVLO Threshold
    • Overtemperature Protection
    • CISPR 22 Class B Compliant
    • Wide -40°C to +125°C Ambient Operating Temperature Range/ -40°C to +150°C Junction Temperature Range

Applications/Uses

  • Industrial Control Power Supplies
  • General Purpose Point-of-Load
  • Distributed Supply Regulation
  • Base Station Power Supplies
  • Wall Transformer Regulation
  • High Voltage Single-Board Systems

See parametric specs for Step-Down Switching Regulators (409)


Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
IOUT1
(A)
(min)(max)(min)(max)
MAX17760 NEW!4.5760.90.3

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX17760AEVKIT: Evaluation Kit for the MAX17760 in 5V Output-Voltage Application

Tools & Models

  • EE-Sim: Design & Simulate MAX17760
  • Request Reliability Report for: MAX17760 
    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.

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    Type ID Title
    Evaluation Board10625MAX17760AEVKIT Evaluation Kit for the MAX17760 in 5V Output-Voltage Application