MAX1745 - Analog Devices

MAX1745 Step-Down DC-DC Controllers

The MAX1744/MAX1745 are step-down DC-DC controllers capable of handling up to 36V inputs. These parts use a proprietary current-limited control scheme for excellent light- and full-load efficiency, while their 330kHz (max) switching frequency permits small external components for space-critical applications. Operation to 100% duty cycle permits the lowest po.

Features

● High-Voltage Operation (Up to 36V IN)
● Efficiency > 90%
● Output Power Capability Exceeds 50W
● 10-Pin μMax Package
● Low-Dropout Voltage
● 100% (max) Duty Cycle
● 90μA Quiescent Current
● 4μA Shutdown Current
● Up to 330kHz Switching Frequency
● Output Voltage
• 5V or 3.3V (MAX1744)
• Adjustable 1.25V to 18V (MAX1745)
● Current-Limited Control Scheme Ordering Information PART TEMP RANGE PIN-PACKAGE MAX1744EUB+ -40°C to +85°C 10 μMAX MAX1744AUB+ -40°C to +125°C 10 μMAX MAX1744EUB/V+ -40°C to +85°C 10 μMAX MAX1745EUB+ -40°C to +85°C 10 μMAX MAX1745AUB+ -40°C to +125°C 10 μM.