FAN2103_08 FAIRCHILD [Fairchild Semiconductor], FAN2103_08 Datasheet
FAN2103_08
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FAN2103_08 Summary of contents
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FAN2103 — TinyBuck™ 3A, 24V Input, Integrated Synchronous Buck Regulator Features 3A Output Current Over 95% Efficiency Fully Synchronous Operation with Integrated Schottky Diode on Low-side MOSFET Boosts Efficiency Programmable Frequency Operation (200KHz to 600KHz) Power-good Signal Accepts Ceramic Capacitors ...
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Typical Application Diagram Block Diagram © 2007 Fairchild Semiconductor Corporation FAN2103 Rev. 1.0.5 Figure 1. Typical Application Figure 2. Block Diagram 2 www.fairchildsemi.com ...
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Pin Configuration Figure 3. MLP 5x6mm Pin Configuration (Bottom View) Pin Definitions Pin Name Description P1, 6-12 SW Switching Node. P2, 2-5 VIN Power Input Voltage. Connect to the main input power source. P3, 21-23 PGND Power Ground. Power return ...
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Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure ...
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Electrical Specifications Recommended operating conditions are the result of using the circuit shown in Figure 1 unless otherwise noted. Parameter Power Supplies V Current CC V UVLO Threshold CC Oscillator Frequency (2) Minimum On-Time Ramp Amplitude, pk–pk (2) Minimum Off-Time ...
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Electrical Specifications Recommended operating conditions are the result of using the circuit shown in Figure 1 unless otherwise noted. Parameter Control Functions EN Threshold, Rising EN Hysteresis EN Pull-up Resistance EN Discharge Current FB OK Drive Resistance PGOOD Threshold (Compared ...
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Typical Characteristics 1.010 1.005 1.000 0.995 0.990 -50 0 Temperature ( Figure 4. Reference Voltage (V Normalized 1500 1200 900 600 300 Figure 6. Frequency vs. R 1.60 1.40 1.20 1.00 Q2 ~0.35 %/ ...
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Application Circuit Typical Performance Characteristics Typical operating characteristics using the circuit shown in Figure 10. V Efficiency 100 0.00 0.50 1.00 1.50 Load Current (A) Figure 11. 1.8 V Efficiency Over ...
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Typical Performance Characteristics Typical operating characteristics using the circuit shown in Figure 10. V Figure 15. SW and V OUT Figure 17. Transient Response, 1.5-3A Load (Circuit Values Changed) Figure 19. Start-up, 3A Load © 2007 Fairchild Semiconductor Corporation FAN2103 ...
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Circuit Description Initialization Once V exceeds the UVLO threshold and HIGH, the IC checks for an open or shorted FB pin before releasing the internal soft-start ramp (SS open (as shown in Figure 1), ...
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Calculating the Inductor Value Typically the inductor is set for a ripple current (ΔI 10% to 35% of the maximum DC load. Regulators requiring fast transient response use a value on the high side of this range, while regulators that ...
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Under-Voltage Shutdown If FB remains below the under-voltage threshold for 16 consecutive clock cycles, the fault latch is set and the converter shuts down. This fault is prevented from setting the fault latch during soft-start. Over-Voltage Protection / Shutdown • ...
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Physical Dimensions 2X TOP VIEW SIDE VIEW SEATING PLANE BOTTOM VIEW Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing ...
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Fairchild Semiconductor Corporation FAN2103 Rev. 1.0.5 14 www.fairchildsemi.com ...