LMZ10503EVAL/NOPB National Semiconductor, LMZ10503EVAL/NOPB Datasheet
LMZ10503EVAL/NOPB
Specifications of LMZ10503EVAL/NOPB
Related parts for LMZ10503EVAL/NOPB
LMZ10503EVAL/NOPB Summary of contents
Page 1
... Measures 2.25 in. x 2.25 in. (5 5.8 cm) and is 62mil (.062”) thick on a FR4 laminate © 2010 National Semiconductor Corporation National Semiconductor Application Note 2022 Ricardo Capetillo August 12, 2010 Evaluation Board Design Concept ...
Page 2
Component Circuit Schematic FIGURE 1. Component Schematic for Evaluation Board TABLE 1. Bill of Materials for Evaluation Board, V Designator Description U1 SIMPLE SWITCHER® µF, X7R, 16V in1 4.7 µF, X5R, 6.3V in2 O1 C ...
Page 3
Complete Circuit Schematic FIGURE 2. Complete Evaluation Board Schematic 30111324 3 www.national.com ...
Page 4
Connection Diagram Efficiency vs. Load Current LMZ10504 & LMZ10505, V OUT www.national.com FIGURE 3. Efficiency Measurement Setup FIGURE 4. Output Voltage Ripple Measurement Setup = 2.5V 25°C AMB 30111328 4 30111315 30111316 Efficiency vs. Load Current LMZ10503, V ...
Page 5
Performance Characteristics FIGURE 5. Current Derating vs. Ambient Temperature = 5.0V, θ LMZ10503 FIGURE 6. Current Derating vs. Ambient Temperature = 5.0V, θ LMZ10504 FIGURE 7. Current Derating vs. Ambient Temperature = 5.0V, θ ...
Page 6
FIGURE 11. Output Voltage Ripple 2.5V OUT OUT LMZ10503 / LMZ10504 / LMZ10505 FIGURE 12. Load Transient Response V = 5.0V OUT LMZ10503 400 mA to 2.7A, 20 MHz ...
Page 7
FIGURE 17. Load Transient Response V = 5.0V 2.5V IN OUT LMZ10505 500 mA to 4.5A, 20 MHz Bandwidth Limit OUT 30111335 FIGURE 18. Load Transient Response LMZ10505, I OUT 7 30111334 V = 3.3V, V ...
Page 8
Circuit Example: Complies with EN55022 Class B Radiated Emissions FIGURE 19. Component Schematic, V Designator Description U1 SIMPLE SWITCHER® µF, X7R, 16V in1 C 4.7 µF, X5R, 6.3V in2 C 47 µF, X5R, 6.3V in3 C 100 µF, ...
Page 9
FIGURE 22. Radiated Emissions (EN55022, Class 5V 2.5V OUT OUT Tested on LMZ10505 Evaluation Board 30111327 = 5A 9 www.national.com ...
Page 10
PCB Layout Diagram www.national.com FIGURE 23. Top Layer FIGURE 24. Internal Layer I (Ground) 10 30111307 30111308 ...
Page 11
FIGURE 25. Internal Layer II (Ground) FIGURE 26. Bottom Layer 11 30111311 30111313 www.national.com ...
Page 12
... For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...