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The TPS65263QRHBRQ1 integrates a triple-synchronous buck converter with a wide 4.0 to 18 V input voltage. The converter features a constant-frequency peak current mode converter designed to simplify its application, while designers can optimise the system for the target application. The converter's switching frequency is adjustable from 200 kHz to 2.3 MHz. kHz to 2.3 MHz. 180° out-of-phase operation between Buck 1 and Buck 2, and Buck 3 (in-phase operation of Buck 2 and Buck 3) minimises input filter requirements. The initial start-up voltage of each buck can be set using an external feedback resistor. External feedback resistor. The output voltage of Buck 2 is dynamically adjustable from 0.68 to 1.95 V in 10 mV steps. The output voltage can be dynamically adjusted in 10 mV steps from 0.68 to 1.95 V via the I2C-controlled 7-bit VID. The VID voltage transition slew rate can be optimised for overshoot/undershoot during VID voltage transitions via the 3-bit control on the I2C bus.

Product Attributes

Function: Buck

Output Configuration: Positive

Topology: Buck

Output Type: Programmable

Number of Outputs: 3

Voltage - Input (Min): 4V

Voltage - Input (Max): 18V

Voltage - Output (Min/Fixed): 0.68V

Voltage - Output (Max): 6.3V

Current - Output: 3A, 2A, 2A

Frequency - Switch: 200kHz ~ 2.3MHz

Synchronous Rectifier: Yes

Operating Temperature: -40°C ~ 125°C (TJ)

Mounting Type: Surface Mount

Package/Shell: 32-VFQFN Exposed Pad

Supplier Device Package: 32-VQFN (5x5)

Applications

● Automotive

● Car audio and video

● Home Gateway and Access Point Networks

● Surveillance

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