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MAXIM INTEGRATED / ANALOG DEVICES MAX1856EUBT PWM Power Supply Controller

The MAX1856 offers a low-cost, wide input range PWM power supply controller for generating various negative voltages used in telecommunication and broadband applications. It supports synchronization to external clocks, soft-start, and high efficiency flyback topology, making it suitable for VoIP, DSL, cable modems, set-top boxes, WLL, and industrial power supplies. Designed with an adjustable frequency of 100kHz to 500kHz, it features low noise, high transformer utilization, and a comprehensive set of protection features, ensuring reliable operation across diverse applications.

Authorized Distributors
Source:Newark
Part No:MAX1856EUB+T
Stock:1600
Inv Date:06-05-2026
Price: Unit price: $7.37
Buy/RFQ:
Source:DigiKey
Part No:MAX1856EUB+T
Stock:1457
Inv Date:06-05-2026
Price: Unit price: $7.25
Buy/RFQ:
Part No:MAX1856EUB+T
Stock:1045
Inv Date:06-06-2026
Price: Unit price: $7.16
Buy/RFQ:

MAXIM INTEGRATED / ANALOG DEVICES MAX1856EUBT PWM Power Supply Controller Specifications:

  • Input Voltage Range: 3V to 28V
  • Oscillator Frequency: 100kHz to 500kHz (set by resistor Rosc)
  • Efficiency: Typically 80%
  • Power Dissipation: 444mW at Ta=+70°C
  • Operating Temperature: -40°C to +85°C
  • Maximum Output Power: depends on efficiency and input power, typically supports 12W with 80% efficiency
  • Switching Frequency Accuracy: ±1%
  • Reference Voltage: 1.25V, source capability up to 400μA
  • Maximum Duty Cycle: 87% to 93%
  • Shutdown Mode: Logic low disables operation, high enables
  • Package: 10-pin uMAX
  • Soft-start: Integrated with no external components
  • Protection Features: Undervoltage lockout, overcurrent protection
  • Current Sense Threshold: 15mV, adjustable
  • LDO Dropout Voltage: Typical 200mV at 12mA load
  • High-speed Schottky diodes recommended for rectification
  • Transformers: Economical off-the-shelf types from various vendors, turns ratio depends on application
  • Transformers support various voltage and current ratings, input-output ratios, and supply a wide range of negative voltages

Buy the Maxim MAX1856 – Reliable PWM for Industrial Applications

Purchase your Maxim MAX1856 PWM power supply controller online now and enhance your industrial or telecommunication projects with reliable, efficient voltage generation. Designed for versatile applications, it supports synchronization, soft-start, and wide input voltage ranges for maximum flexibility. Its high efficiency flyback topology ensures lower energy loss and improved performance. With easy external resistor configuration for frequency and voltage settings, and comprehensive protection features, this controller is perfect for VoIP, DSL, cable modems, set-top boxes, and industrial power systems. Buy now for trusted quality and seamless integration.

Order your Maxim MAX1856 today and give your projects the dependable quality they deserve for efficient power conversion and telecommunication solutions.

Frequently Asked Questions

Where can I buy MAXIM INTEGRATED / ANALOG DEVICES MAX1856EUBT?

You can click on the BUY or RFQ button to purchase MAX1856EUBT from an authorized MAXIM INTEGRATED / ANALOG DEVICES distributor.

How do I troubleshoot issues or seek technical support for part MAX1856EUBT?

You can download the MAX1856EUBT datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.

Who is the manufacturer of MAX1856EUBT?

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