Specification	MAX77837EWA+T

Function	Step-Up/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	Adjustable
Package / Case	8-WFBGA, WLBGA
Supplier Device Package	8-WLP
Supplier Device Package [x]	1.81
Supplier Device Package [y]	1
Synchronous Rectifier	False
Topology	Buck-Boost
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	1.8 V
Voltage - Output (Max) [Max]	5.2 V
Voltage - Output (Min/Fixed)	1.8 V

MAX77837 Series

5.5V Input, 0.4A/1.05A Switching Current Buck-Boost Converter with 400nA IQ

Part	Outputs and Type	Outputs and Type	Supplied Contents	Board Type	Main Purpose	Voltage - Output [Min]	Voltage - Output [Max]	Regulator Topology	Voltage - Input [Min]	Voltage - Input [Max]	Contents	Utilized IC / Part	Function	Number of Outputs	Topology	Voltage - Input (Min) [Min]	Synchronous Rectifier	Operating Temperature [Min]	Operating Temperature [Max]	Mounting Type	Output Configuration	Voltage - Input (Max) [Max]	Package / Case	Voltage - Output (Min/Fixed)	Supplier Device Package [y]	Supplier Device Package [x]	Supplier Device Package	Voltage - Output (Max) [Max]	Output Type
Analog Devices Inc./Maxim Integrated MAX77837WEVKIT#	1	1 Non-Isolated Output Non-Isolated	Board(s)	Fully Populated	DC/DC Step Up or Down	1.8 V	5.2 V	Buck-Boost	1.8 V	5.5 V	Board(s)	MAX77837
Analog Devices Inc./Maxim Integrated MAX77837EWA+T													Step-Up/Step-Down	2	Buck-Boost	1.8 V		-40 C	125 °C	Surface Mount	Positive	5.5 V	8-WFBGA WLBGA	1.8 V	1	1.81	8-WLP	5.2 V	Adjustable

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 2.83
		10	$ 1.83
		25	$ 1.57
		100	$ 1.28
		250	$ 1.13
		500	$ 1.05
		1000	$ 0.97
	Digi-Reel®	1	$ 2.83
		10	$ 1.83
		25	$ 1.57
		100	$ 1.28
		250	$ 1.13
		500	$ 1.05
		1000	$ 0.97
	N/A	4286	$ 1.77
		37500	$ 1.77
	Tape & Reel (TR)	2500	$ 0.90
		5000	$ 0.85
		7500	$ 0.83
		12500	$ 0.80
Newark	Each (Supplied on Cut Tape)	1	$ 1.91
		10	$ 1.71
		25	$ 1.62
		50	$ 1.50
		100	$ 1.38
		250	$ 1.29
		500	$ 1.13
		1000	$ 0.94

Description

General part information

MAX77837 Series

The MAX77837 is the industry's smallest nanoPower buck-boost converter optimized for single-cell battery chemistries that are used in wearable and Internet of Things (IoT) applications.The converter operates on an input supply between 1.8V to 5.5V. Output voltages between 1.8V to 5.2V are set through resistors connected to two hardware control pins. The IC can operate in Continuous Conduction Mode (CCM), Skip Mode, and a Low-Power Mode to ensure high efficiency over a wide load current range. In addition, the IC features an ultra-low quiescent current of 430nA (typical) and a shutdown current of 10nA (typical), making it ideal for battery-powered applications requiring a long standby time.The MAX77837 offers two unique hardware control pins, SEL1 and SEL2. The resistor connected at SEL1 (RSEL1) selects a predefined combination of two output voltages between 1.8V to 5.2V, OUT1 and OUT2. The resistor connected at SEL2 (RSEL2) allows two different configurations of switch current limit at 1050mA and 400mA to optimize external component size, enable or disable Dynamic Voltage Scaling (DVS) function, and select either hiccup or latch-off mode during a hard short event. RSEL2can also configure the startup voltage as OUT1 or OUT2, and the DVS function can change the output voltage from a lower VOUTto a higher VOUTas required without powering down the part.The MAX77837 is available in both a 1.84mm x 1.03mm, 8-bump wafer-level package (WLP) with a bump pitch of 0.4mm and a 2.5mm x 2.0mm, 8-lead Flip Chip QFN package (FC2QFN).APPLICATIONSLPWAN SoC Companion Power SolutionIoT and Wearable ApplicationsAsset TrackersSmart Meters