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TPS40021PWPG4 is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG CTRLR BUCK 16HTSSOP. Review the specifications below when checking this part for your BOM.
The TPS40021PWPG4 is an enhanced product synchronous buck controller manufactured by Texas Instruments. It operates with a fixed switching frequency of 300 kHz and supports a maximum duty cycle of 95%. The device delivers an output current capability of 20 A and regulates output voltages down to 1.5 V. It functions within an input voltage range of 2.25 V to 5.5 V. The component is housed in a 16-pin HTSSOP package and is rated for operation between -55°C and +125°C, featuring a quiescent supply current of 1.5 mA.
Verify the specific 'G4' suffix indicates lead-free compliance and RoHS adherence as per Texas Instruments documentation. Confirm the package variant matches the required HTSSOP-16 footprint. Ensure the enhanced product designation aligns with long-term availability requirements for the design lifecycle.
Select this controller when a fixed 300 kHz frequency is preferred to simplify EMI filtering and passive component sizing. The wide operating temperature range makes it suitable for harsh industrial environments. Verify that the 20 A output current rating meets the peak load demands of the target application without requiring additional parallel stages.
This component belongs to the TPS400xx series of synchronous buck controllers from Texas Instruments. It shares architectural similarities with other members like the TPS40020 but offers specific enhancements in reliability and thermal performance. The family is designed for efficient DC/DC conversion in space-constrained designs requiring robust power management.
The device supports a maximum duty cycle of 95%.
No, the TPS40021 operates with a fixed internal switching frequency and does not support external clock synchronization.
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