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LM3212 Datasheet(PDF) 2 Page - Texas Instruments |
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LM3212 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 25 page D4 D3 D2 A4 A3 A2 C4 A1 B4 D1 C1 B1 C3 B3 C2 B2 PVIN EN PVIN ACB PACB VCON FB ACB PACB PGND SW VDD AUTO_BY SW SGND PGND D1 D2 D3 A1 A2 A3 C1 A4 B1 D4 C4 B4 C2 B2 C3 B3 EN PVIN VDD ACB PACB SW PGND ACB PACB FB VCON PVIN SW AUTO_BY PGND SGND LM3212 SNOSB37C – DECEMBER 2008 – REVISED APRIL 2013 www.ti.com Connection Diagrams 16-Bump 0.5 mm DSBGA Package, Large Bump Top View Bottom View PIN DESCRIPTIONS Pin # Name Description A3, A4 PVIN Power Supply Voltage Input to the internal PFET switch. A2 VDD Analog Supply Input. A1 EN Enable Input. Set this digital input high for normal operation. For shutdown, set low. Pin has an 800 k Ω internal pulldown resistor. B4, B3 SW Switching Node connection to the internal PFET switch and NFET synchronous rectifier. Connect to an inductor. B1 VCON Voltage Control Analog input. VCON controls VOUT in PWM mode. When VCON < 0.15V the switches are turned off (output in tri-state). B2 AUTO_BY The AUTO_BY Pin determines the bypass mode function. Set AUTO_BY high for normal automatic bypass mode operation. Set AUTO_BY low for forced bypass (independent of the state of the EN pin). The pin has an internal 800 k Ω pullup resistor. C4, C3 PGND Power Ground C2 SGND Analog and Control Ground C1 FB Feedback Analog Input. Connect to the output at the output filter capacitor. D3, D2 ACB Active Current Assist source/sink and Bypass. Connect to the output at the output filter capacitor. D4, D1 PACB Power-to-active current/bypass circuit. This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. 2 Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated Product Folder Links: LM3212 |
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