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FAN4868 Datasheet(PDF) 2 Page - ON Semiconductor |
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FAN4868 Datasheet(HTML) 2 Page - ON Semiconductor |
2 / 12 page ![]() FAN4868 www.onsemi.com 2 Table 1. ORDERING INFORMATION Part Number Operating Temperature Range Package Packing Method FAN4868UC33X −40°C to 85°C WLCSP, 0.4 mm Pitch Tape and Reel BLOCK DIAGRAMS Figure 1. IC Block Diagram EN VOUT Q2 Q1 Modulator Logic and Control Q3 VIN SW Synchronous Rectifier Control GND FB L1 EN VOUT Q2 Q1 Modulator Logic and Control Q3 VIN SW Synchronous Rectifier Control GND FB L1 VIN CIN COUT PIN CONFIGURATIONS Figure 2. WLCSP (Top View) VIN SW EN GND VOUT FB C2 C1 B2 B1 A2 VIN SW EN GND VOUT FB C1 C2 B1 B2 A1 Figure 3. WLCSP (Bottom View) A2 A1 Table 2. PIN DEFINITIONS Pin # Name Description WLCSP A1 VIN Input Voltage. Connect to Li−Ion battery input power source and input capacitor (CIN) B1 SW Switching Node. Connect to inductor C1 EN Enable. When this pin is HIGH, the circuit is enabled. This pin should not be left floating C2 FB Feedback. Output voltage sense point for VOUT. Connect to output capacitor (COUT) B2 VOUT Output Voltage. This pin is both the output voltage terminal as well as an IC bias supply A2 GND Ground. Power and signal ground reference for the IC. All voltages are measured with respect to this pin |
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