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LMR23630FQDRRRQ1 Datasheet(PDF) 3 Page - Texas Instruments |
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LMR23630FQDRRRQ1 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 35 page  SW SW BOOT VCC FB RT PGND NC VIN VIN EN/ SYNC AGND 1 2 3 4 5 6 12 11 10 9 8 7 PAD 13 1 2 3 4 5 6 12 11 10 9 8 7 PAD 13 SW SW BOOT VCC FB PGOOD PGND NC VIN VIN EN/ SYNC AGND PAD 9 AGND EN/SYNC VIN PGND SW BOOT VCC FB 1 2 3 4 5 6 7 8 3 LMR23630-Q1 www.ti.com SNVSAR6 – DECEMBER 2016 Product Folder Links: LMR23630-Q1 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated 5 Product Portfolio Package Part Number Fixed 400kHz Adjustable Frequency Power Good FPWM SOIC (8) LMR23630AQDDARQ1 √ LMR23630AFQDDARQ1 √ √ WSON (12) (Pin 6 is RT) LMR23630QDRRRQ1 √ LMR23630FQDRRRQ1 √ √ WSON (12) (Pin 6 is PGOOD) LMR23630APQDRRRQ1 √ √ (1) A = Analog, P = Power, G = Ground. 6 Pin Configuration and Functions DDA Package 8-Pin SOIC Top View DRR Package 12-Pin WSON Top View DRR Package 12-Pin WSON Top View Pin Functions PIN I/O (1) DESCRIPTION NAME NO. SOIC-8 WSON-12 With RT WSON-12 With PGOOD SW 1 1, 2 1, 2 P Switching output of the regulator. Internally connected to both power MOSFETs. Connect to power inductor. BOOT 2 3 3 P Boot-strap capacitor connection for high-side driver. Connect a high quality 100 nF capacitor from BOOT to SW. VCC 3 4 4 P Internal bias supply output for bypassing. Connect a 2.2 μF/ 16 V or higher capacitance bypass capacitor from this pin to AGND. Do not connect external loading to this pin. Never short this pin to ground during operation. FB 4 5 5 A Feedback input to regulator, connect the midpoint of feedback resistor divider to this pin. RT N/A N/A 6 A Connect a resistor RT from this pin to AGND to program switching frequency. Leave floating for 400 kHz default switching frequency. PGOOD N/A 6 N/A A Open drain output for power-good flag. Use a 10 kΩ to 100 kΩ pull-up resistor to logic rail or other DC voltage no higher than 12 V. EN/SYNC 5 8 8 A Enable input to regulator. High = On, Low = Off. Can be connected to VIN. Do not float. Adjust the input under voltage lockout with two resistors. The internal oscillator can be synchronized to an external clock by coupling a positive pulse into this pin through a small coupling capacitor. See Enable/Sync for detail. AGND 6 7 7 G Analog ground pin. Ground reference for internal references and logic. Connect to system ground. VIN 7 9, 10 9, 10 P Input supply voltage. |
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