All trademarks are the property of their respective owners.
DescriptionThe TPS54A24RTWR is a full-featured 17-V, 10-A synchronous step-down DC/DC converter in astandard 4 mm × 4 mm WQFN package.
The device is optimized for small solution size through high efficiency and integratingthe high-side and low-side MOSFETs. Further space savings are achieved through peak-current-modecontrol, which reduces component count, and by selecting a high switching frequency, reducing theinductor footprint.
The peak-current-mode control simplifies the loop compensation and provides fasttransient response. Cycle-by-cycle peak current limiting on the high-side and low-side sourcingcurrent limit protects the device in overload situations. Hiccup limits MOSFET power dissipation ifa short circuit or over loading fault persists.
A power-good supervisor circuit monitors the regulator output. The PGOOD pin is anopen-drain output and goes high impedance when the output voltage is in regulation. An internaldeglitch time prevents the PGOOD pin from pulling low unless a fault has occurred.
A dedicated EN pin can be used to control the regulator on/off and adjust the inputundervoltage lockout. The output voltage start-up ramp is controlled by the SS/TRK pin, whichallows operation as either a standalone power supply or in tracking situations.
Feature
- Standard 4-mm × 4-mm WQFN package
- –40°C to +150°C Operating junction temperature
- 200-kHz to1.6-MHz Fixed switching frequency
- Peak-current-modecontrol
- Synchronizes to external clock
- 0.6-V Voltagereference ±0.85% over temperature
- 0.6-V to 12-V Output voltagerange
- Safe start-up into prebiased output voltage
- Hiccupcurrent limit
- Adjustable soft start and powersequencing
- Adjustable input undervoltage lockout
- Power-good output monitor for undervoltage and overvoltage
- 3-μA Shutdowncurrent
- Output overvoltage protection
- Non-latch thermalshutdown protection
- Create a custom design using the TPS54A24 with theWEBENCH? Power Designer
All trademarks are the property of their respective owners.
DescriptionThe TPS54A24 is a full-featured 17-V, 10-A synchronous step-down DC/DC converter in astandard 4 mm × 4 mm WQFN package.
The device is optimized for small solution size through high efficiency and integratingthe high-side and low-side MOSFETs. Further space savings are achieved through peak-current-modecontrol, which reduces component count, and by selecting a high switching frequency, reducing theinductor footprint.
The peak-current-mode control simplifies the loop compensation and provides fasttransient response. Cycle-by-cycle peak current limiting on the high-side and low-side sourcingcurrent limit protects the device in overload situations. Hiccup limits MOSFET power dissipation ifa short circuit or over loading fault persists.
A power-good supervisor circuit monitors the regulator output. The PGOOD pin is anopen-drain output and goes high impedance when the output voltage is in regulation. An internaldeglitch time prevents the PGOOD pin from pulling low unless a fault has occurred.
A dedicated EN pin can be used to control the regulator on/off and adjust the inputundervoltage lockout. The output voltage start-up ramp is controlled by the SS/TRK pin, whichallows operation as either a standalone power supply or in tracking situations.
