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TPS51312DRCT Datasheet(PDF) 11 Page - Texas Instruments |
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TPS51312DRCT Datasheet(HTML) 11 Page - Texas Instruments |
11 / 20 page UDG-12145 SW SW PGOOD NC VIN VIN VCC FB NC EN PGOOD VIN 3.1 V to 5.5 V GND (Thermal Pad ) VOUT 1.8 V L1 1 mH RFB2 20 kW C3 22 mF CFF 47 mF RFB1 40 kW EN 10 9 8 6 5 TPS51312 2 3 4 1 7 C2 22 mF C1 10 mF TPS51312 www.ti.com SLUSB57 – SEPTEMBER 2012 REFERENCE DESIGN Application Schematic Figure 12 shows the application schematic.. Figure 12. Reference Design Schematic Table 1. Reference Design List of Materials FUNCTION MANUFACTURER PART NUMBER Output Inductor Vishay IHLP-2020BZ-01 Panasonic ECJ2FB0J226M Ceramic Output Capacitors Murata GRM21BR60J226ME39L Design Procedure Step One. Determine the specifications. • VOUT = 1.8 V • ICC(max) = 3 A • di/dt = 2.5 A/µs Step Two. Determine the system parameters. The input voltage range and operating frequency are of primary interest. For example, • VIN = VCC = 5 V • fSW = 900 kHz. Copyright © 2012, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links :TPS51312 |
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