Boost Switching Regulator IC Positive Adjustable 2.2V 1 Output 3A SOT-563, SOT-666
TPS61023 device is a synchronous boost converter
with 0.5-V ultra-low input voltage. The device provides
a power supply solution for portable equipment and
smart devices powered by various batteries and super
capacitors. The TPS61023 has typical 3.7-A valley
switch current limit over full temperature range. With a
wide input voltage range of 0.5 V to 5.5 V, the
TPS61023 supports super capacitor backup power
applications, which may deeply discharge the super
capacitor.
The TPS61023 operates at 1-MHz switching
frequency when the input voltage is above 1.5 V. The
switching frequency decreases gradually to 0.5 MHz
when the input voltage is below 1.5 V down to 1 V.
The TPS61023 enters power-save mode at light load
condition to maintain high efficiency over the entire
load current range. The TPS61023 consumes a 20-
µA quiescent current from VOUT in light load condition.
During shutdown, the TPS61023 is completely
disconnected from the input power and only
consumes a 0.1-µA current to achieve long battery
life. The TPS61023 has 5.7-V output overvoltage
protection, output short circuit protection, and thermal
shutdown protection.
• 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 47-mΩ (LS) / 68-mΩ (HS) MOSFETs
• 3.7-A Valley switching current limit
• 94% Efficiency at VIN = 3.6 V, VOUT = 5 V and IOUT
= 1.5 A
• 1-MHz Switching frequency when VIN > 1.5 V and
0.5-MHz switching frequency when VIN < 1 V
• Typical 0.1-µA shutdown current from VIN and SW
• ±2.5% Reference voltage accuracy over –40°C to
+125°C
• Auto PFM operation mode at light load
• Pass-through mode when VIN > VOUT
• True disconnection between input and output
during shutdown
• Output overvoltage and thermal shutdown
protections
• Output short-circuit protection
• 1.2-mm × 1.6-mm SOT563 (DRL) 6-pin package
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