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GRM21BR71A475KA73 Datasheet(PDF) 8 Page - Panasonic Semiconductor |
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GRM21BR71A475KA73 Datasheet(HTML) 8 Page - Panasonic Semiconductor |
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8 / 43 page  NN30332A Page 8 of 42 Product Standards PIN CONFIGURATION Top View Pin No. Pin name Type Description 1 LX Output Power MOSFET output pin An inductor is connected and switching operation is carried out between VIN and GND. Due to high current and large amplitude at this terminal, the parasitic inductance and impedance of the routing path can cause an increase in noise and a degradation in the efficiency. Routing path should be kept as short as possible. 2 3 4 5 6 7 PGND Ground Ground pin for Power MOSFET 8 9 10 LP Input Low Power Mode / Normal Mode selection pin Low Power Mode is set at Low level input, Normal Mode is set at High level input. 11 AGND Ground Ground pin 20 12 AVIN Input Power supply voltage sense pin Recommended rise time ( time to reach 90 % of set value ) setting is greater than or equal to 10 µs and less than or equal to 1 s. 13 FSEL Input Frequency selection pin This is set to 430 kHz at Low level input, 630 kHz at High level input 14 EN Input ON / OFF control pin DC-DC is stopped at Low level input, and it is started at High level input. 15 V5 Power supply 5 V input pin (Power supply for internal control circuit) PIN FUNCTIONS LP AGND PGND AVIN PGOOD AGND BST PVIN 16 7 10 12 13 18 19 20 24 26 PVIN 25 AGND 27 LX 21 22 23 17 16 15 14 11 8 9 5 4 3 2 Note : Detailed pin descriptions are provided in the OPERATION and APPLICATION INFORMATION section. Doc No. TA4-EA-06197 Revision. 3 Established : 2013-07-29 Revised : 2014-02-18 |
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