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LM2623LDX 数据表(PDF) 2 Page - Texas Instruments |
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LM2623LDX 数据表(HTML) 2 Page - Texas Instruments |
2 / 16 page LM2623 SNVS188G – MAY 2004 – REVISED DECEMBER 2005 www.ti.com Connection Diagram Figure 1. WSON Package Top View Figure 2. VSSOP-8 (DGK) Package Top View Pin Description WSON-14 Pin VSSOP-8 Pin Name Function 1 NC No Connect 2, 3 1 PGND Power Ground (WSON Pins 2 & 3 must be shorted together). 4 2 EN Active-Low Shutdown Input 5 3 FREQ Frequency Adjust. An external resistor connected between this pin and a voltage source sets the switching frequency of the LM2623. 6 4 FB Output Voltage Feedback 7 NC No Connect 8 NC No connect 9 5 SGND Signal Ground 10 6 VDD Power Supply for Internal Circuitry 11 7 BOOT Bootstrap Supply for the Gate Drive of Internal MOSFET Power Switch 12, 13 8 SW Drain of the Internal MOSFET Power Switch. (WSON Pins 12 & 13 must be shorted together). 14 NC No Connect DAP DAP To be soldered to board for enhanced thermal dissipation. To be electrically isolated/floating. 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. 2 Submit Documentation Feedback Copyright © 2004–2005, Texas Instruments Incorporated Product Folder Links: LM2623 |
类似零件编号 - LM2623LDX |
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类似说明 - LM2623LDX |
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