Power Electronics / Power Management


Step-down converter

1 May 2013 Power Electronics / Power Management

Maxim’s MAX16936 is a 2,5 A current-mode step-down converter with integrated high-side and low-side MOSFETs designed to operate with an external Schottky diode for better efficiency.

The low-side MOSFET enables fixed-frequency forced-PWM (FPWM) operation under light-load applications.

The device operates with input voltages from 3,5 V to 36 V, while using only 28 μA quiescent current at no load. The switching frequency is resistor programmable from 220 kHz to 2,2 MHz and can be synchronised to an external clock.

The MAX16936’s output voltage is available as 5 V/3,3 V fixed or adjustable from 1 V to 10 V. The wide input voltage range, along with its ability to operate at 98% duty cycle during under-voltage transients, make the IC well suited for automotive and industrial applications.

Under light-load applications, the FSYNC logic input allows the MAX16936 to either operate in skip mode for reduced current consumption or fixed-frequency FPWM mode to eliminate frequency variation to minimise EMI. Fixed-frequency FPWM mode is very useful for power supplies designed for RF transceivers where tight emission control is necessary.

Protection features include cycle-by-cycle current limit and thermal shutdown with automatic recovery. Additional features include a power-good monitor to ease power supply sequencing and a 180° out-of-phase clock output relative to the internal oscillator at SYNCOUT to create cascaded power supplies with multiple MAX16936s.

The IC operates over the -40°C to +125°C automotive temperature range and is available in 16-pin TSSOP-EP and 5 x 5 mm, 16-pin TQFN-EP packages.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Cutting-edge solutions for Africa’s clean energy future
Power Electronics / Power Management
As Africa pushes towards reliable, affordable, and sustainable energy, Sungrow is driving transformation with cutting-edge innovations that enhance grid stability, reduce energy costs, and expand access to clean power.

Read more...
Transformer protection is a critical safeguard for municipal power stability
Power Electronics / Power Management
Transformer protection is not just a technical requirement; it is a vital component in ensuring the resilience and operational integrity of South Africa’s municipal power infrastructure.

Read more...
Reliable power solution
Conical Technologies Power Electronics / Power Management
The Mibbo MLD-120W-xxVx is a robust DIN-rail mounted DC-DC converter with a 120 W output capacity specifically designed for industrial and automation applications.

Read more...
Easing the path for IPPs navigating local energy regulations
Power Electronics / Power Management
Independent Power Producers (IPPs) and developers venturing into South Africa’s renewable energy sector face an onerous and challenging regulatory landscape characterised by uncertainty in securing grid connections and considerable development costs.

Read more...
Wide input voltage buck-boost converter
Altron Arrow Power Electronics / Power Management
The MAX77859 from Analog Devices is a high-efficiency, high-performance buck-boost converter targeted for systems requiring a wide input voltage range of between 2,5 and 22 V.

Read more...
High-density power module for AI at the edge applications
Altron Arrow Power Electronics / Power Management
The MCPF1412 power module from Microchip has integrated I2C and PMBus interfaces for flexible configuration and monitoring.

Read more...
Development kit for TI’s SN6507
Power Electronics / Power Management
This comprehensive solution is designed to help engineers evaluate the performance of TI’s SN6507 transformer driver for isolated power supplies.

Read more...
High-voltage IGBT
Hi-Q Electronics Power Electronics / Power Management
Diotec Semiconductor has launched the DIW030M060 IGBT, a 600 V, 30 A device with a built-in reverse diode.

Read more...
DC converter for Hi-Rel applications
Vepac Electronics Power Electronics / Power Management
The MFK2812S from Crane Aerospace & Electronics is a DC-DC converter with an input voltage range of 16 to 50 V and an output of 12 V at up to 2,08 A.

Read more...
Telemetry retrofit for sustainable resource management
CST Electronics Test & Measurement
AquaMeter is a cost-effective secure telemetry retrofit that can easily be added to hundreds of millions of legacy mechanical water meters.

Read more...