Catalog
4.5-V to 24-V input, 8-A synchronous buck converter
Key Features
• 4.5-V to 24-V input voltage range3.36-V output voltage (TPS51383)3.3-V, 100-mA LDO with switch over (TPS51383)1.82-V output voltage (TPS51384)1.8-V, 100-mA LDO with switch over (TPS51384)Integrated 22-mΩ and 11-mΩ MOSFETsSupport 8-A continuous IOUT80-µA low quiescent current±1% reference voltage at 25°C±1.5% reference voltage at -40°C to 125°CD-CAP3™ control mode for fast transient responseSupport POSCAP and all MLCC output capacitorOutput discharge functionSelectable PSM and OOA mode under light loadPower-good indicator to monitor output voltageLatched output OV and UV protectionNon-latched UVLO and OT protectionCycle-by-cycle overcurrent protectionBuilt-in output discharge featureSmall 2.00-mm × 3.00-mm HotRod™ QFN package4.5-V to 24-V input voltage range3.36-V output voltage (TPS51383)3.3-V, 100-mA LDO with switch over (TPS51383)1.82-V output voltage (TPS51384)1.8-V, 100-mA LDO with switch over (TPS51384)Integrated 22-mΩ and 11-mΩ MOSFETsSupport 8-A continuous IOUT80-µA low quiescent current±1% reference voltage at 25°C±1.5% reference voltage at -40°C to 125°CD-CAP3™ control mode for fast transient responseSupport POSCAP and all MLCC output capacitorOutput discharge functionSelectable PSM and OOA mode under light loadPower-good indicator to monitor output voltageLatched output OV and UV protectionNon-latched UVLO and OT protectionCycle-by-cycle overcurrent protectionBuilt-in output discharge featureSmall 2.00-mm × 3.00-mm HotRod™ QFN package
Description
AI
The TPS51383 and TPS51384 are monolithic 8-A synchronous buck converters with adaptive on-time D-CAP3 control mode. Integrated low RDS(on)power MOSFETs enable high efficiency and offer ease-of-use with minimum external component count for space-constrained power systems. Features include an accurate reference voltage, fast load transient response, auto-skip mode operation for light load efficiency, OOA light load operation with > 25-kHz switching frequency, D-CAP3 control mode with good line, load regulation, and does not require external compensation.
The TPS51383 provides a fixed 3.36-V 8-AMAXoutput and a 3.3-V, 100-mAMAXLDO output with switch-over functionality. The TPS51384 provides a fixed 1.82-V 8-AMAXoutput and a 1.8-V, 100-mAMAXLDO with switch-over functionality. Both the TPS51383 and TPS51384 have ultra-low quiescent current function for long battery life in system standby mode.
The TPS5138x are available in a thermally enhanced 12-pin QFN package and are designed to operate from –40°C to 125°C junction temperature.
The TPS51383 and TPS51384 are monolithic 8-A synchronous buck converters with adaptive on-time D-CAP3 control mode. Integrated low RDS(on)power MOSFETs enable high efficiency and offer ease-of-use with minimum external component count for space-constrained power systems. Features include an accurate reference voltage, fast load transient response, auto-skip mode operation for light load efficiency, OOA light load operation with > 25-kHz switching frequency, D-CAP3 control mode with good line, load regulation, and does not require external compensation.
The TPS51383 provides a fixed 3.36-V 8-AMAXoutput and a 3.3-V, 100-mAMAXLDO output with switch-over functionality. The TPS51384 provides a fixed 1.82-V 8-AMAXoutput and a 1.8-V, 100-mAMAXLDO with switch-over functionality. Both the TPS51383 and TPS51384 have ultra-low quiescent current function for long battery life in system standby mode.
The TPS5138x are available in a thermally enhanced 12-pin QFN package and are designed to operate from –40°C to 125°C junction temperature.