FAN5037M Fairchild Semiconductor, FAN5037M Datasheet
FAN5037M
Specifications of FAN5037M
FAN5037M_NL
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FAN5037M Summary of contents
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FAN5037 Adjustable Switching Regulator Controller Features Applications Block Diagram 5V VCCA 2 FAN5037 CEXT Oscillator 1 1.20V Reference Description +12V IFBL 4 Feedback Control IFBH 3 VCCP 8 7 Digital Logic DRV VFB 5 GNDP 6 www.fairchildsemi.com +5V Vout REV. ...
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FAN5037 Pin Assignments Pin Descriptions Pin Pin Name Number Pin Function Description CEXT 1 External capacitor. A 180pF capacitor is connected to this pin as part of the constant on-time pulse width circuit. Careful layout of this pin is critical ...
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PRODUCT SPECIFICATION Electrical Characteristics ° (VCCA = 5V, VCCP = 12V The • denotes specifications which apply over the full ambient operating temperature range. Parameter Output Voltage Output Temperature Drift Line Regulation Load Regulation V PSRR ...
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FAN5037 Typical Operating Characteristics ° (VCCA = 5V, and T = +25 C using circuit in Figure 1, unless otherwise noted) A Efficiency vs. Output Current ...
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PRODUCT SPECIFICATION Typical Operating Characteristics Output Startup, System Power-Up Time (5ms/division) Application Circuit Optional L1 +5V 2 MMBD4148 D3 1N4735A R1 +12V 0 0.1uF C6 180pF REV. ...
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... Motorola 1N4735A 1 Q1 Fairchild FDB6030L Optional L1 Any 1 L2 Any 1 U1 Fairchild FAN5037M Application Information Switch-Mode Control Loop 6 Description 100nF, 25V Capacitor 1200µF, 10V Aluminum Capacitor 1µF, 25V Capacitor 180pF, 50V Capacitor 1500µF, 6.3V Aluminum Capacitor 47.5 4.75 5. Resistor 3.48K ...
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PRODUCT SPECIFICATION Constant On-Time Oscillator CEXT 1 REF Output Voltage Selection Input Capacitors REV. 1.0.3 9/26/01 +5V +12V VCCA 2 IFBL IFBH 3 VCCP SDRV ...
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FAN5037 Schottky Diode Noisy signal is routed away from quiet pins and the trace length is kept under 0.5in. The gate resistor is as close as possible to the MOSFET. 8 Board Design Considerations MOSFET Placement Inductor and Schottky Diode ...
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PRODUCT SPECIFICATION Power and Ground Connections REV. 1.0.3 9/26/01 MOSFET Gate Bias +5V +12V 47 VCCP SENSE GNDP Figure 4. 12V Gate Bias Configuration FAN5037 V OUT C BULK 9 ...
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PRODUCT SPECIFICATION Mechanical Dimensions 8 Lead SOIC Package Inches Millimeters Symbol Min. Max. Min. A .053 .069 1.35 A1 .004 .010 0.10 B .013 0.33 .020 C .008 .010 0.20 D .189 .197 4.80 E .150 .158 3.81 e .050 ...
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... FAN5037 Ordering Information Product Number FAN5037M DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. ...