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The MAX17574ATG is a high efficiency, high voltage, synchronous step-down DC-DC converter with a built-in MOSFET that operates over a 4.5V to 60V input voltage range. The converters can deliver up to 3A of current. The output voltage can be set from 0.9V up to 90% of VIN. feedback voltage regulation accuracy is ±0.9% over the -40°C to +125°C temperature range.

The MAX17574ATG utilizes a peak current mode control architecture. The device can operate under pulse width modulation (PWM), pulse frequency modulation (PFM), or discontinuous conduction mode (DCM) control methods. A programmable soft-start feature allows the user to reduce input inrush current. The device also features an output enable/undervoltage lockout pin (EN/UVLO) that allows the user to turn the device on when the input voltage reaches the appropriate requirement. When the output voltage reaches the regulated range, a low active RESET open-drain output is triggered after a certain delay to provide a power-ready indication for the system.

The MAX17574ATG is available in a 24-pin (4mm x 5mm) TQFN package. Emulation mode is provided.

Product Features

Reduced external components for lower overall cost

Schottky-free synchronous operation

Internal compensation for stable operation at any output voltage

All ceramic capacitor design for compact layout

Reduced inventory list of DC-DC regulators

Wide input voltage range of 4.5V to 60V

Adjustable output voltage range from 0.9V+ to 90% VIN

Provides up to 3A current over the entire temperature range

100kHz to 2.2MHz adjustable switching frequency range with out-of-band synchronization

Reduced power consumption

Higher than 90% peak efficiency

PFM and DCM modes for high efficiency at light loads

Auxiliary bootstrap LDO for improved efficiency

2.8μA shutdown current

Reliable operation in harsh industrial environments

Hiccup overload protection

Adjustable soft-start and pre-bias power-up

Built-in output voltage monitoring with active-low RESET pin

Programmable EN/UVLO thresholds

Monotonic entry into pre-biased load state at startup

Over Temperature Protection

Industrial grade high temperature -40°C to +125°C

Applications

Base station power supplies

Power distribution regulators

General purpose point-of-load power supplies

High voltage, single board systems

Industrial control power supplies

Wall Transformer Voltage Regulators

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

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• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.