MAX17662

3.5V to 36V, 2A, High-Efficiency, Synchronous Step-Down DC-DC Converter

A High-Efficiency, Synchronous Step-Down DC-DC Converter with Integrated MOSFETs


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Description

The MAX17662 is a high-efficiency, synchronous step-down DC-DC converter with integrated MOSFETs operating over an input-voltage range of 3.5V to 36V. It can deliver up to 2A current. Output voltage is programmable from 0.6V up to 90% of VIN. Built-in compensation across the output-voltage range eliminates the need for external compensation components.

The MAX17662 features a peak-current-mode control architecture. The MAX17662 can be operated in forced pulse-width modulation (PWM), or discontinuous-conduction mode (DCM) to enable high efficiency under full-load and light-load conditions. The MAX17662 offers a low minimum on-time that allows high switching frequencies and a smaller solution size.

The feedback-voltage regulation accuracy over -40°C to +125°C is ±1.33%. The device is available in a 16-pin (3mm x 3mm) TQFN package. Simulation models are available.
MAX17662: Block Diagram MAX17662: Block Diagram 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 3.5V to 36V Input
    • Adjustable Output Voltage Range from 0.6V up to 90% of VIN
    • Delivers Up to 2A Over the Temperature Range
    • 400kHz to 2.2MHz Adjustable Frequency
    • Available in a 16-pin, 3mm x 3mm TQFN Package
  • Reduces Power Dissipation
    • Peak Efficiency of 95%
    • DCM Mode Enable Enhanced Light-Load Efficiency
    • Wide 2.4V to 12V Bootstrap Bias Input (EXTVCC) for Improved Efficiency
    • 6.5μA Shutdown Current
  • Operates Reliably in Adverse Industrial Environments
    • Hiccup-Mode Overload Protection
    • Adjustable and Monotonic Startup with Prebiased Output Voltage
    • Built-in Output-Voltage Monitoring with RESET
    • Programmable EN/UVLO Threshold
    • Overtemperature Protection
    • High Industrial -40°C to +125°C Ambient Operating Temperature Range/-40°C to +150°C Junction Temperature Range

Applications/Uses

  • Base Station Power Supplies
  • Distributed Supply Regulation
  • General-Purpose Point-of-Load
  • High-Voltage, Single-Board Systems
  • Industrial Control Power Supplies
  • Wall Transformer Regulation
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingDC-DC OutputsOper. Freq.
(kHz)
Operating Freq.
(kHz)
Package/Pins
minmaxminmax
MAX17662 3.5360.632.4Resistor2InternalYes14002200
TQFN-CU/16
See All Step-Down Switching Regulators (388)
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.


MAX17662BEVKITA: Evaluation Kit for the MAX17662 in 3.3V Output-Voltage Application
MAX17662BEVKITB: Evaluation Kit for the MAX17662 in 5V Output-Voltage Application

Quality and Environmental Data

Request Reliability Report for: MAX17662 
Lead-Free Package Tin (Sn) Whisker Reports

Tools & Models

  • EE-Sim: Design & Simulate MAX17662
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    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 >

     
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    Type ID Title
    Evaluation Board10491MAX17662BEVKITB Evaluation Kit for the MAX17662 in 5V Output-Voltage Application
    Evaluation Board10452MAX17662BEVKITA Evaluation Kit for the MAX17662 in 3.3V Output-Voltage Application