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TPS54010 Datasheet(PDF) 11 Page - Texas Instruments |
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TPS54010 Datasheet(HTML) 11 Page - Texas Instruments |
11 / 31 page µ µF µF µF µF k Ω k Ω µF µF k Ω k Ω k Ω k Ω µF µF µF TPS54010-EP www.ti.com SLVSBN3 – JANUARY 2013 Figure 12. Application Circuit, 2.5 V to 1.5 V Figure 12 shows the schematic for a typical • Output ripple voltage TPS54010 application. The TPS54010 can provide • Output current rating up to 14-A output current at a nominal output voltage • Operating frequency of 1.5 V. Nominal input voltages are 2.5 V for PVIN For this design example, use the following as the and 3.3 V for VIN. For proper thermal performance, input parameters: the exposed PowerPAD underneath the device must be soldered down to the printed-circuit board. Table 1. DESIGN PROCEDURE DESIGN PARAMETER EXAMPLE VALUE Input voltage (VIN) 3.3 V The following design procedure can be used to select component values for the TPS54010. Alternately, the Input voltage range (PVIN) 2.2 to 3.5 V SWIFT Designer Software may be used to generate a Output voltage 1.5 V complete design. The SWIFT Designer Software uses Input ripple voltage 300 mV an iterative design procedure and accesses a Output ripple voltage 50 mV comprehensive database of components when Output current rating 14 A generating a design. This section presents a simplified discussion of the design process. Operating frequency 700 kHz DESIGN PARAMETERS SWITCHING FREQUENCY To begin the design process, a few parameters must The switching frequency can be set to either one of be decided. The designer needs to know: two internally programmed frequencies or set to a • Input voltage range externally programmed frequency. With the RT pin • Output voltage open, setting the SYNC pin at or above 2.5 V selects 550-kHz operation, whereas grounding or leaving the • Input ripple voltage Copyright © 2013, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: TPS54010-EP |
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