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Integrated Circuits (ICs)

MAX77540AAFG+

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CONV DC-DC 4V TO 16V SYNCHRONOUS STEP DOWN DUAL-OUT 0.5V TO 5.2V 3A/3A 24-PIN FC2QFN TRAY

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Search across all available documentation for this part.

DocumentsPackage Drawing - 24-LFCSP-3X3X0.55 MAX77540: 16VIN/6A, Dual-Phase High-Efficiency Buck Converter Data Sheet (Rev.2)

Integrated Circuits (ICs)

MAX77540AAFG+

Active

Analog Devices Inc./Maxim Integrated

CONV DC-DC 4V TO 16V SYNCHRONOUS STEP DOWN DUAL-OUT 0.5V TO 5.2V 3A/3A 24-PIN FC2QFN TRAY

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DocumentsPackage Drawing - 24-LFCSP-3X3X0.55 MAX77540: 16VIN/6A, Dual-Phase High-Efficiency Buck Converter Data Sheet (Rev.2)

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	MAX77540AAFG+

Current - Output	3 A
Frequency - Switching	1.6 MHz, 1 MHz, 500 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 C
Output Configuration	Positive
Output Type	Programmable
Package / Case	24-UFQFN
Supplier Device Package	24-FC2QFN (3x3)
Synchronous Rectifier	False
Topology	Buck
Voltage - Input (Max) [Max]	16 V
Voltage - Input (Min) [Min]	4 V
Voltage - Output (Max) [Max]	5.2 V
Voltage - Output (Min/Fixed) [Min]	0.5 V

MAX77540 Series

Part	Voltage - Input (Min) [Min]	Current - Output	Voltage - Output (Max) [Max]	Operating Temperature [Min]	Operating Temperature [Max]	Output Configuration	Number of Outputs	Mounting Type	Function	Output Type	Supplier Device Package	Package / Case	Topology	Voltage - Input (Max) [Max]	Frequency - Switching	Voltage - Output (Min/Fixed) [Min]	Supplied Contents	Board Type	Outputs and Type	Outputs and Type	Contents	Voltage - Output	Voltage - Input [Max]	Voltage - Input [Min]	Regulator Topology	Main Purpose	Utilized IC / Part	Supplier Device Package [y]	Supplier Device Package [x]
Analog Devices Inc./Maxim Integrated MAX77540AAFG+T	4 V	3 A	5.2 V	-40 C	125 °C	Positive	2	Surface Mount	Step-Down	Programmable	24-FC2QFN (3x3)	24-UFQFN	Buck	16 V	1 MHz 1.6 MHz 500 kHz	0.5 V
Analog Devices Inc./Maxim Integrated MAX77540EVKIT#		3 A													1 MHz		Accessories Board(s)	Fully Populated	1	1 Non-Isolated Output Non-Isolated	Accessories Board(s)	3.3 V	16 V	4 V	Buck	DC/DC Step Down	MAX77540
Analog Devices Inc./Maxim Integrated MAX77540AAWV+	4 V	3 A	5.2 V	-40 C	125 °C	Positive	2	Surface Mount	Step-Down	Adjustable	30-WLP	30-WFBGA WLBGA	Buck	16 V	1 MHz 1.6 MHz 500 kHz	0.5 V												2.31	2.51
Analog Devices Inc./Maxim Integrated MAX77540AAFG+	4 V	3 A	5.2 V	-40 C	125 °C	Positive	2	Surface Mount	Step-Down	Programmable	24-FC2QFN (3x3)	24-UFQFN	Buck	16 V	1 MHz 1.6 MHz 500 kHz	0.5 V
Analog Devices Inc./Maxim Integrated MAX77540AAWV+T	4 V	3 A	5.2 V	-40 C	125 °C	Positive	2	Surface Mount	Step-Down	Programmable	30-WLP	30-WFBGA WLBGA	Buck	16 V	1 MHz 1.6 MHz 500 kHz	0.5 V												2.31	2.51
Analog Devices Inc./Maxim Integrated MAX77540QEVKIT#																	Board(s)	Fully Populated			Board(s)						MAX77540Q

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	141	$ 2.77
		6864	$ 2.77
	Tray	1	$ 3.67
		10	$ 2.41
		25	$ 2.08
		80	$ 1.76
		230	$ 1.54
		624	$ 1.39
		1248	$ 1.30
		2496	$ 1.23
		4992	$ 1.17

Description

General part information

MAX77540 Series

The MAX77540 is a high-efficiency step-down converter with two 3A switching phases. It uses an adaptive COT (constant on-time) current-mode control architecture and the two 3A switching phases can be configured as either one (2Φ, 6A) or two (1Φ, 3A each) outputs. Its wide input voltage range enables a direct conversion for sub-1V outputs from 3-cell Li+ batteries, USB PD, and 12VDCsupply rails. The output voltages are preset with resistors and are further adjustable through an I2C-compatible interface. With 94% peak efficiency, low quiescent current, and compact solution size, the MAX77540 is ideal for battery powered, space-constraint equipment.Programmable switching frequency, frequency tracking, and spread-spectrum allow easier system optimization for noise-sensitive applications. Dedicated EN, POK, and FPWM pins provide options for direct hardware control, while more programmable options, such as soft-start/stop and ramp-up/down slew-rates, are available through I2C. An array of built-in protections insures safe operation under abnormal operating conditions.Applications2/3-Cell Li+ and USB-C Power Delivery SystemsAudio and Video EquipmentMicroprocessors, field-programmable gate arrays (FPGAs), digital signal processors (DSPs),andapplication-specific integrated circuits (ASICs)Networking and PCIe®/redundant array of inexpensive disks (RAID) Cards

Documents

Technical documentation and resources

Package Drawing - 24-LFCSP-3X3X0.55

Package Drawing

MAX77540: 16VIN/6A, Dual-Phase High-Efficiency Buck Converter Data Sheet (Rev.2)

Data Sheet