Specification	MAX77681EVKIT#

Board Type	Fully Populated
Contents	Board(s)
Main Purpose	DC/DC, Step Up or Down
Outputs and Type	Non-Isolated, Non-Isolated Outputs
Outputs and Type	3
Outputs and Type [custom]	3
Regulator Topology	Buck-Boost
Supplied Contents	Board(s)
Utilized IC / Part	MAX77681
Voltage - Input [Max]	5.5 V
Voltage - Input [Min]	2.7 V
Voltage - Output	1.8 V, 5 V, 3.3 V

MAX77681 Series

3-Output SIMO Buck-Boost Regulator with Power Sequencer and 3μA IQ

Part	Board Type	Supplied Contents	Outputs and Type	Outputs and Type	Voltage - Input [Max]	Voltage - Input [Min]	Main Purpose	Voltage - Output	Outputs and Type [custom]	Regulator Topology	Utilized IC / Part	Contents	Number of Outputs	Voltage - Output [Min]	Voltage - Output [Max]	Package / Case	Mounting Type	Applications	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package [y]	Supplier Device Package	Supplier Device Package [x]	Qualification	Grade
Analog Devices Inc./Maxim Integrated MAX77681EVKIT#	Fully Populated	Board(s)	Non-Isolated Non-Isolated Outputs	3	5.5 V	2.7 V	DC/DC Step Up or Down	1.8 V 3.3 V 5 V	3	Buck-Boost	MAX77681	Board(s)
Analog Devices Inc./Maxim Integrated MAX77681AEWV+					5.5 V	2.7 V							3	0.8 V	5.25 V	30-WFBGA WLBGA	Surface Mount	Cameras Hearables IoT Wearables	85 °C	-40 C	2.15	30-WLP	2.75
Analog Devices Inc./Maxim Integrated MAX77681AEWV+T					5.5 V	2.7 V							3	0.8 V	5.25 V	30-WFBGA WLBGA	Surface Mount	Cameras Hearables IoT Wearables	85 °C	-40 C	2.15	30-WLP	2.75	AEC-Q100	Automotive

Pricing

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

Distributor	Package	Quantity	$

Digikey	Box	1	$ 147.87
	N/A	2	$ 148.29
		11	$ 148.29
Newark	Each	1	$ 155.50

Description

General part information

MAX77681 Series

The MAX77680/MAX77681 is a 3-channel single-inductor multiple-output (SIMO) buck-boost regulator that regulates three independent rails using only 3µA of quiescent current (IQ). The SIMO improves battery life by replacing inefficient LDOs while being competitive in efficiency to traditional single-output bucks.The SIMO operates on a input supply between 2.7V and 5.5V. The outputs are independently programmable between 0.8V and 5.25V depending on ordering option. Each output is a buck-boost with glitchless transition between buck and boost operation. The SIMO can support >300mA loads (1.8VOUT, 3.7VIN).The device integrates a flexible power sequencer (FPS) to control power-up/down order of each output. The default output voltages and sequence can be programmed at the factory. An I2C serial interface is used to further configure the device.The MAX77680/MAX77681 is available in a 30-bump wafer-level package (WLP). Total solution size is only 15.5mm2. For a similar product with an LDO and battery charger, refer to the MAX77650 data sheet.ApplicationsAction Cameras, Wearable/Body CamerasHearables: Bluetooth Headphones and EarbudsLow-Power Internet of Things (IoT) GadgetsWearables: Fitness, Health, and Activity Monitors

Documents

Technical documentation and resources

Technical Data Sheet EN

Datasheet

Application Note EN

Datasheet