Texas Instruments 10A, 12V Input, 1.8V Output Synchronous Buck Converter using the TPS40192 and NexFET MOSFETs TPS40192E TPS40192EVM-525 数据表
产品代码
TPS40192EVM-525
www.ti.com
EVM Assembly Drawings and Layout
5.4
Switch Node
Figure 8. TPS40192EVM-525 Switching Waveforms,
CH1: SW(TP9), CH2: HDRV(TP8), CH3: LDRV(TP10); Vin = 14 V, Vout = 1.8 V, Iout = 10 A
6
EVM Assembly Drawings and Layout
The following figures (
through
) show the design of the TPS40192EVM-525
printed-circuit board. The EVM has been designed using a 4-layer, 2-oz copper-clad circuit board
1.20-inch × 1.00-inch with all components in a 1.25-in. × 0.8-in. active area on the top side and all active
traces to the top and bottom layers to allow the user to easily view, probe, and evaluate the TPS40192
control IC in a practical double-sided application. Moving components to both sides of the PCB or using
additional internal layers can offer additional size reduction for space-constrained systems.
1.20-inch × 1.00-inch with all components in a 1.25-in. × 0.8-in. active area on the top side and all active
traces to the top and bottom layers to allow the user to easily view, probe, and evaluate the TPS40192
control IC in a practical double-sided application. Moving components to both sides of the PCB or using
additional internal layers can offer additional size reduction for space-constrained systems.
Figure 9. TPS40192EVM-525 Component Placement (Viewed From Top)
13
SLUU395 – December 2009
Using the TPS40192EVM-525, A 12-V Input, 1.8-V Output, 10-A Synchronous
Buck Converter
Copyright © 2009, Texas Instruments Incorporated