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LM3671MF-3.3 Arkusz danych(PDF) 3 Page - Texas Instruments |
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LM3671MF-3.3 Arkusz danych(HTML) 3 Page - Texas Instruments |
3 / 39 page 1 3 4 6 En Pgnd Vin 2 5 Sw Sgnd Fb TOP VIEW LM3671 LM3671Q www.ti.com SNVS294P – NOVEMBER 2004 – REVISED MAY 2013 Figure 5. 6-Pin USON Package See Package Number NKH0006B (2 mm x 2 mm x 0.6 mm) PIN DESCRIPTIONS (SOT-23) Pin # Name Description 1 VIN Power supply input. Connect to the input filter capacitor (Figure 1). 2 GND Ground pin. 3 EN Enable pin. The device is in shutdown mode when voltage to this pin is <0.4V and enabled when >1.0V. Do not leave this pin floating. 4 FB Feedback analog input. Connect directly to the output filter capacitor for fixed voltage versions. For adjustable version external resistor dividers are required (Figure 2). The internal resistor dividers are disabled for the adjustable version. 5 SW Switching node connection to the internal PFET switch and NFET synchronous rectifier. PIN DESCRIPTIONS (5-Bump DSBGA) Pin # Name Description A1 VIN Power supply input. Connect to the input filter capacitor (Figure 1). A3 GND Ground pin. C1 EN Enable pin. The device is in shutdown mode when voltage to this pin is <0.4V and enabled when >1.0V. Do not leave this pin floating. C3 FB Feedback analog input. Connect directly to the output filter capacitor for fixed voltage versions. For adjustable version external resistor dividers are required (Figure 2). The internal resistor dividers are disabled for the adjustable version. B2 SW Switching node connection to the internal PFET switch and NFET synchronous rectifier. PIN DESCRIPTIONS (6-Pin USON) Pin # Name Description 1 EN Enable pin. The device is in shutdown mode when voltage to this pin is <0.4V and enabled when >1.0V. Do not leave this pin floating. 2 Pgnd Ground pin. 3 VIN Power supply input. Connect to the input filter capacitor (Figure 1). 4 SW Switching node connection to the internal PFET switch and NFET synchronous rectifier. 5 Sgnd Singnal ground (feedback ground). 6 FB Feedback analog input. Connect directly to the output filter capacitor for fixed voltage versions. For adjustable version external resistor dividers are required (Figure 2). The internal resistor dividers are disabled for the adjustable version. These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Copyright © 2004–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM3671 LM3671Q |
Podobny numer części - LM3671MF-3.3 |
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Podobny opis - LM3671MF-3.3 |
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