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FAN6520A Rev. 1.0.5 13
FAN6520A Single Synchronous Buck PWM Controller
Typical Application Circuit
Figure 12. 5V to 1.5V 15A DC-DC Converter
Evaluation Board Bill of Materials (1.5V, 15 Amps):
Ref Des Description Manufacturer P/N Qty
C1 100pF Capacitor, 603 Any 1
C2 0.01µF Capacitor, 603 Any 1
C3 Not Populated 0
C4 0.1µF Capacitor, 603 Any 1
C5A,C5B 1µF Capacitor, 805 Any 3
C6,C11 0.1µF Capacitor, 603 Any 2
C7 Not Populated Capacitor, 603 Any 0
C9-10,C12,C13 1500µF Capacitor, 6.3V United
Chemi-con
KZJ6.3VB152M10X12LL 4
D1 Diode, 30mA, 30V Fairchild MMSD4148 1
L1 1.2µH Inductor InterTechnical SC5015-1R2M 1
Q1,Q2 MOSFET Fairchild FDD6606 2
R1 2.2kΩ 1% Resistor, 603 Any 1
R2 30.1kΩ 1% Resistor, 603 Any 1
R3 Not Populated 0
R4 2.49kΩ Resistor, 603 Any 1
R5 11.8kΩ Resistor, 603 Any 1
R6 Not Populated Resistor, 603 Any 0
R7 0Ω Resistor, 603 Any 1
PB1 Pushbutton, miniature Digikey P8007S-ND 1
U1 Single Synchronous Buck PWM Fairchild FAN6520A 1
TP1,2,3,4 Test Points KeyStone 1514-2 4
FB
U1
FAN6520A
VCC
+V
OUT
Q2
COMP/OCSET
R7
GND
LDRV
SW
HDRV
BOOT
5
3
4
8
2
1
6
7
Q1
C5a
R4
R5
C2
R2
C1
C6
D1
C13
C4
+5V
L
OUT
C9-10
SW1
C12
C5b
C7
C3
R1
R3
C11
R6
