MAX77681 - Maxim Integrated

MAX77681 3-Output SIMO Buck-Boost Regulator

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 2.7.

Features

● Single-Inductor, Multiple-Output (SIMO) Extends Battery Life
• 300nA Shutdown Current
• 3.0μA Operating Quiescent Current (3 SIMO Channels On)
• Improves Overall System Efficiency while Reducing Size
• Maintains Regulation without Dropout unlike Traditional Bucks
• Glitchless Buck-Boost Operation
● Compact, High-Efficiency Power Solution
• Three Independent Channels from SIMO Regulator
• 2.7V to 5.5V Input Voltage Range from Single Cell Li-Ion
• 0.8V to 5.25V Output Voltage Range (Table 1)
• Flexible Power Sequencing
• On-Key Input for Hardware Enable
• Reset Output
● Small Size
• 2.75mm x 2.