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LM2673T-ADJ Datasheet(PDF) 3 Page - Texas Instruments |
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LM2673T-ADJ Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 37 page  Not to scale DAP 1 NC 14 Switch_output 2 Input 13 Switch_output 3 Input 12 Switch_output 4 CB 11 NC 5 NC 10 NC 6 Current_adjust 9 GND 7 FB 8 SS Not to scale 1 Switch_output 2 Input 3 CB 4 GND 5 Current_adjust 6 FB 7 SS Not to scale 3 LM2673 www.ti.com SNVS030O – APRIL 2000 – REVISED JUNE 2016 Product Folder Links: LM2673 Submit Documentation Feedback Copyright © 2000–2016, Texas Instruments Incorporated 5 Pin Configuration and Functions KTW Package 7-Pin TO-263 Top View NDZ Package 7-Pin TO-220 Top View NHM Package 14-Pin VSON Top View Connect DAP to pin 9 on PCB. Pin Functions PIN I/O DESCRIPTION NAME TO-263, TO-220 VSON Switch output 1 12, 13, 14 O Source pin of the internal High Side FET. This is a switching node. Attached this pin to an inductor and the cathode of the external diode. Input 2 2, 3 I Supply input pin to collector pin of high side FET. Connect to power supply and input bypass capacitors CIN. Path from VIN pin to high frequency bypass CIN and GND must be as short as possible. CB 3 4 I Boot-strap capacitor connection for high-side driver. Connect a high quality 100-nF capacitor from CB to VSW Pin. GND 4 9 — Power ground pins. Connect to system ground. Ground pins of CIN and COUT. Path to CIN must be as short as possible. Current adjust 5 6 I Current Limit adjust pin. Connect a resistor from this pin to GND to set the current limit of the part. FB 6 7 I Feedback sense input pin. Connect to the midpoint of feedback divider to set VOUT for ADJ version or connect this pin directly to the output capacitor for a fixed output version. SS 7 8 I Soft-start pin. Connect a capacitor from this pin to GND to control the output voltage ramp. If the feature not desired, the pin can be left floating NC — 1, 5, 10, 11 — No connect pins |
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Similar Description - LM2673T-ADJ |
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