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TPS51317 датащи(PDF) 6 Page - Texas Instruments |
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TPS51317 датащи(HTML) 6 Page - Texas Instruments |
6 / 25 page VIN VIN PGND PGND SW SW SW SW 6 7 8 9 11 12 13 14 15 10 PGND SW 20 19 18 17 16 2 1 5 4 3 TPS51317 SLUSAH9 – MARCH 2011 www.ti.com TPS51317 RGB PACKAGE (Top View) Table 2. PIN FUNCTIONS PIN I/O DESCRIPTION NO. NAME Power supply for internal high-side gate driver. Connect a 0.1- µF bootstrap capacitor between this pin and 16 BST I the SW pin. 8 COMP O Connect series R-C filter between this pin and VREF for loop compensation. 17 EN I Enable of the SMPS (3.3-V logic compatible). 6 GND – Signal ground. 18 MODE I Allows selection of switching frequencies light-load modes. (See Table 4) 1 2 PGND I Power ground. Source terminal of the rectifying low-side power FET. Positive input for current sensing. 3 19 PGOOD O Power good output. Connect pull-up resistor. 9 REFIN Target output voltageinput pin. Apply voltage between 0.6 V to 2.0 V. 11 12 13 SW I/O Switching node output. Connect to the external inductor. Also serve as current-sensing negative input. 14 15 20 V5IN I 5-V power supply for analog circuits and gate drive. 4 VIN I Power supply input pin. Drain terminal of the switching high-side power FET. 5 10 VOUT I Output voltage monitor input pin. 7 VREF O 2.0-V reference output. Connect a 0.22- µF ceramic capacitor to GND. 6 Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s): TPS51317 |
Аналогичный номер детали - TPS51317 |
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Аналогичное описание - TPS51317 |
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