TPS61022 8-A Boost Converter with 0.5-V Ultra-low Input Voltage

1 Features

Input voltage range: 0.5 V to 5.5 V
1.8-V minimum input voltage for start-up
Output voltage setting range: 2.2 V to 5.5 V
Two 12-mΩ (LS) / 18-mΩ (HS) MOSFETs
8-A valley switching current limit
94.7% efficiency at V_IN = 3.6 V, V_OUT = 5 V and I_OUT = 3 A
1-MHz switching frequency when V_IN > 1.5 V and 0.6-MHz switching frequency when V_IN < 1 V
±2.5% reference voltage accuracy over –40°C to +125°C
Pin-selectable auto PFM operation mode or forced PWM operation mode at light load
Pass-through mode when V_IN > V_OUT
True disconnection between input and output during shutdown
Output overvoltage and thermal shutdown protections
Output short-circuit protection
2-mm × 2-mm VQFN 7-pin package