MAX77348B Datasheet | Analog Devices

Description The MAX77348 is an ultra-low quiescent current, noninverting buck-boost converter capable of supporting up to 3.5W output power. The device employs a unique control algorithm that seamlessly transitions between the buck, buck-boost, and boost modes, minimizing discontinuities and subharmonics in the output voltage ripple. The MAX77348 is ideal for a system handling less than 3.5W output power from a single cell Li-Ion battery and requiring high system efficiency with precise voltage control. The MAX77348’s low-noise operation makes it optimum to supply power for RF system power, ear bud applications, and other portable audio systems. Built-in undervoltage lockout (UVLO), output active discharge, and thermal shutdown protection ensures safe operation under abnormal operating conditions. The MAX77348 is available with a highly configurable I2C serial interface. The device is available in 16-bump, 1.77mm x 2.01mm, 0.4mm pitch WLP package. Applications - True Wireless Stereo (TWS) Systems - Narrow Band Internet of Things (NB Io T) - Portable Audio/Wireless Systems Simplified Block Diagram 1.0µH Benefits and Features - Input Voltage Range: 2.3V to 5.5V - Output Voltage Range: 2.5V to 4.8V - Ultra-Low, 3.5μA (typ) Quiescent Current - Dynamic Voltage Scaling (DVS) - Optimized Load Regulation Performance - Power Good Interrupt - Output Active Discharge - Low, Continuous Noise Profile - Eliminates Discontinuities Over Operating Range - Eliminates Need for Post-Filtering Low Dropout (LDO) in Noise Sensitive Applications - Protection Features - Undervoltage Lockout (UVLO) - Thermal Shutdown - 6.4ms Soft-Start - I2C Interface with Status Interrupts - Programmable VOUT - Peak Current Limit Level (IPSET1/IPSET2) Ordering Information appears at end of data sheet. 2.3V TO 5.5V VBAT 10µF LVLX HVLX VOUT MAX773 48 SDA...