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MAX17543/44/45 Step-Down DC-DC Converters

Maxim's MAX17543/44/45 High-Efficiency Synchronous Step-Down DC-DC Converters are a high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over 4.5V to 42V input. The converter can deliver 1.7A, 2.5A or 3.5A and generates output voltages from 0.9V up to 0.9 x V_IN. The feedback (FB) voltage is accurate to within ±1.1% over -40°C to +125°C. The MAX17543/44/45 uses peak-current-mode control. The device can be operated in pulse-width modulation (PWM), pulse-frequency modulation (PFM), or discontinuous conduction mode (DCM) control schemes.
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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	Mounting Style	Package/Case	Topology	Output Voltage	Output Current	Number of Outputs	Quiescent Current	Switching Frequency	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
	Switching Voltage Regulators 4.5V 42V, 3.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation MAX17544ATP+ Analog Devices / Maxim Integrated 1: 6,21 € 799In Stock	Mfr. Part No. MAX17544ATP+ Mouser Part No 700-MAX17544ATP+	Analog Devices / Maxim Integrated	Switching Voltage Regulators 4.5V 42V, 3.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation Learn More about Analog Devices / Maxim Integrated maxim max17543 44 45 converter	Datasheet	799In Stock	6,21 € 4,81 € 4,45 € 4,01 € View 3,90 € 3,89 € 3,77 €	Min.: 1 Mult.: 1 Max.: 1.439			SMD/SMT	TQFN-EP-20	Buck	900 mV to 36 V	3.5 A	1 Output	9.5 mA	2.2 MHz	- 40 C	+ 125 C	MAX17544	Tray
	Switching Voltage Regulators 2.5A, 60V, Synchronous Buck Regulator MAX17543ATP+ Analog Devices / Maxim Integrated 1: 5,44 € 385In Stock	Mfr. Part No. MAX17543ATP+ Mouser Part No 700-MAX17543ATP+	Analog Devices / Maxim Integrated	Switching Voltage Regulators 2.5A, 60V, Synchronous Buck Regulator Learn More about Analog Devices / Maxim Integrated maxim max17543 44 45 converter	Datasheet	385In Stock	5,44 € 4,17 € 3,85 € 3,50 € 3,33 €	Min.: 1 Mult.: 1 Max.: 308			SMD/SMT	TQFN-EP-20	Buck	900 mV to 36 V	2.5 A	1 Output	9.5 mA	100 kHz to 2.2 MHz	- 40 C	+ 125 C	MAX17543	Tube
	Switching Voltage Regulators 2.5A, 60V, Synchronous Buck Regulator MAX17543ATP+T Analog Devices / Maxim Integrated 1: 5,44 € 557In Stock	Mfr. Part No. MAX17543ATP+T Mouser Part No 700-MAX17543ATP+T	Analog Devices / Maxim Integrated	Switching Voltage Regulators 2.5A, 60V, Synchronous Buck Regulator Learn More about Analog Devices / Maxim Integrated maxim max17543 44 45 converter	Datasheet	557In Stock	Cut Tape 5,44 € 4,17 € 3,85 € 3,51 € 3,44 € 3,44 € MouseReel Available	Min.: 1 Mult.: 1 Max.: 445			SMD/SMT	TQFN-EP-20	Buck	900 mV to 36 V	2.5 A	1 Output	9.5 mA	100 kHz to 2.2 MHz	- 40 C	+ 125 C	MAX17543	Reel, Cut Tape, MouseReel
	Switching Voltage Regulators 4.5V 42V, 3.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation MAX17544ATP+T Analog Devices / Maxim Integrated 1: 6,44 € 1.394In Stock	Mfr. Part No. MAX17544ATP+T Mouser Part No 700-MAX17544ATP+T	Analog Devices / Maxim Integrated	Switching Voltage Regulators 4.5V 42V, 3.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation Learn More about Analog Devices / Maxim Integrated maxim max17543 44 45 converter	Datasheet	1.394In Stock	Cut Tape 6,44 € 4,97 € 4,61 € 4,21 € View 3,90 € 3,78 € 3,78 € MouseReel Available	Min.: 1 Mult.: 1 Max.: 1.115			SMD/SMT	TQFN-EP-20	Buck	900 mV to 36 V	3.5 A	1 Output		100 kHz to 2.2 MHz	- 40 C	+ 125 C	MAX17544	Reel, Cut Tape, MouseReel
	Switching Voltage Regulators 4.5V 42V, 1.7A, High-Efficiency, Synchronous Step-Down DC-DC Converter With Internal Compensation MAX17545ATP+T Analog Devices / Maxim Integrated 1: 3,55 € 2.855In Stock	Mfr. Part No. MAX17545ATP+T Mouser Part No 700-MAX17545ATP+T	Analog Devices / Maxim Integrated	Switching Voltage Regulators 4.5V 42V, 1.7A, High-Efficiency, Synchronous Step-Down DC-DC Converter With Internal Compensation Learn More about Analog Devices / Maxim Integrated maxim max17543 44 45 converter	Datasheet	2.855In Stock	Cut Tape 3,55 € 2,67 € 2,46 € 2,22 € View Reel 1,97 € 2,11 € 2,10 € 1,97 € 1,97 € MouseReel Available	Min.: 1 Mult.: 1 Max.: 1.404 : 2.500			SMD/SMT	TQFN-EP-20	Boost	900 mV to 36 V	1.7 A	1 Output	9.5 mA	2.2 MHz	- 40 C	+ 125 C	MAX17545	Reel, Cut Tape, MouseReel