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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

Product Details

Key Features

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 3.5
VIN (V) (max) 36
VOUT1 (V) (min) 0.6
VOUT1 (V) (max) 32.4
IOUT1 (A) (max) 2
Switch Type Internal
Output Adjust. Method Resistor
Synchronous Switching? Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 400
Design Tools EE-Sim
Package/Pins TQFN-CU/16
Budgetary
Price (See Notes)
1.64
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Simplified Block Diagram

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Parameters

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 3.5
VIN (V) (max) 36
VOUT1 (V) (min) 0.6
VOUT1 (V) (max) 32.4
IOUT1 (A) (max) 2
Switch Type Internal
Output Adjust. Method Resistor
Synchronous Switching? Yes
# DC-DC Outputs 1
Switching Frequency (kHz) 400
Design Tools generateDesignEESIMUrl('http://maxim.transim.com/pwm2/designreq/Index?partId=17228', '')
Package/Pins TQFN-CU/16
Budgetary
Price (See Notes)
1.64

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 Active-Low 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

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.

Simplified Block Diagram

MAX17662: Block Diagram MAX17662: Block Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .