Analog Devices MAX17227A Product Info

• 350nA Quiescent Supply Current from Output
• Output Short-Circuit Protection
• True Shutdown Mode
• 1nA Shutdown Current
• Output Disconnects from Input
• No Reverse-Current with Any Voltage on V_OUT
• 96% Peak Efficiency, 90% or Higher at 500μA
• Typical 850mA Output Current at 5.0V (V_IN = 3.0V)
• 400mV to 5.5V Input Range, Up to 5.35V in Regulation
• 880mV Minimum Startup Voltage
• Single Resistor-Adjustable Output Voltage
• 2.3V to 5.2V Output Voltage Range with 100mV Steps
• 5.5V Output Voltage Setting Available
• 2A Peak Inductor Current Limit
• Thermal Shutdown Protection
• Multiple Package Options
• 1.58mm x 0.89mm, 0.4mm Pitch, 6-Bump (3 x 2) WLP
• 2mm x 2mm 8-Pin TDFN
• -40°C to +125°C Operating Temperature Range

The MAX17227A is a nanoPower boost converter capable of delivering load up to 2A peak inductor current and offering True Shutdown™, cycle-by-cycle inductor current limit, short-circuit, and thermal protection. During shutdown, current drawn from the input pin is 1nA. The MAX17227A offers ultra-low quiescent current, small total solution size, and high efficiency throughout the load and line range. The MAX17227A is ideal for battery-powered applications where long battery life is a must and high efficiency is required at all power levels.

The MAX17227A utilizes adjustable on-time, pulse-frequency-modulation (PFM) control scheme that consumes ultra-low quiescent current. The MAX17227A features True Shutdown mode where the output disconnects from the input with no forward or reverse-current. This saves precious energy from the battery for systems that dynamically turn on and off by having the ability to startup into a precharged output capacitor.

The MAX17227A is offered in a space-saving and costeffective 1.58mm x 0.89mm, 6-bump WLP (3 x 2, 0.4mm pitch) and 8-pin, 2mm x 2mm TDFN packages. The operating temperature range is from -40°C to +125°C.

Applications

• Clinical Instrumentation
• Consumer
• Emergency Lighting
• Industrial
• IoT Sensors
• Medical
• Near-Band IoT
• Wearable Audio
• WiFi Module