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MAX1967ESA+T/MAX1967EUB+T is a voltage mode pulse width modulation (PWM), step-down DC-DC controller, which is very suitable for applications with strict cost requirements. These devices drive low-cost N-channel MOSFET high-end switches and synchronous rectifiers, and do not require external Schottky power diodes or current sensing resistors. Provide short-circuit and current limiting protection by detecting the drain source voltage of low-end FETs. Both devices can provide output voltages as low as 0.8V, making them ideal for powering DSP cores and other low-voltage logic circuits.
The input voltage range of MAX1966ESA+T is 2.7V to 5.5V; the input voltage range of MAX1967EUB+T is 2.7V to 28V. In the ultra-low cost design, MAX1966ESA+T/MAX1967EUB+T can provide an efficiency of over 90%, and by optimizing the selection of external components, the efficiency can reach 95%.
MAX1966ESA+T/MAX1967EUB+T operates at a frequency of 100kHz and allows for the use of aluminum electrolytic capacitors and iron powder cores in low-cost designs. If high-performance surface mount components are selected, they can also provide better performance indicators. The MAX1966ESA+T adopts a low-cost 8-pin SO package, while the MAX1967EUB+T adopts a 10 pin µ MAX package.




Key Features


Cost optimized design

Efficiency higher than 95%

Low cost external components

All adopt N-channel field-effect transistor design

2.7V to 5.5V input voltage range (MAX1966)

2.7V to 28V input voltage range (MAX1967)

0.8V feedback voltage can provide low voltage output

100kHz switching frequency allows for the use of low-cost components

Hot shutdown

Output current limiting and short-circuit protection



application
Cable modems and routers

Graphics card power supply

Network power supply

set-top box

Telecommunications power supply

Terminal power supply

XDSL modems and routers

MAX1967EUB+T