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TPS62021DRCRG4 Datasheet(PDF) 4 Page - Texas Instruments |
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TPS62021DRCRG4 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 28 page www.ti.com PIN ASSIGNMENTS 1 2 3 4 5 10 9 8 7 6 EN VIN VIN GND FB PGND PGND SW SW MODE DGQ PACKAGE (TOP VIEW) NOTE: The PowerPAD must be connected to GND. 1 2 3 4 5 10 9 8 7 6 EN VIN VIN GND FB PGND PGND SW SW MODE DRC PACKAGE (TOP VIEW) TPS62020 TPS62021 TPS62026 SLVS076C – JUNE 2003 – REVISED DECEMBER 2004 Terminal Functions TERMINAL I/O DESCRIPTION NAME NO. EN 1 I Enable. Pulling EN to ground forces the device into shutdown mode. Pulling EN to VI enables the device. EN should not be left floating and must be terminated. VIN 2, 3 I Supply voltage input GND 4 Analog ground FB 5 I Feedback. Connect an external resistor divider to this pin. If a fixed-output-voltage device is ued, connect FB directly to the output. MODE 6 I The difference between TPS6202x and TPS62021 is the logic level of the MODE pin. The TPS62021 has an MODE active-low MODE pin. The TPS6202x is forced into fixed-frequency PWM mode by pulling the MODE pin high. Pulling the MODE pin low enables the Power Save Mode, operating in PFM mode (Pulse frequency modulation) at light load current, and in fixed frequency PWM at medimum to heavy load currents. In contrast, the TPS62021 is forced into PWM mode by pulling the MODE pin low. SW 7, 8 I/O This is the switch pin of the converter and connected to the drain of the internal power MOSFETs PGND 9, 10 Power ground 4 |
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