FAN6520A_06 Datasheet, PDF (13/15 Pages) Fairchild Semiconductor – Single Synchronous Buck PWM Controller

Typical Application Circuit
+5V
1 ^BOOT
D1
C6
C13
C12
VCC
5
C4
R5
COMP/OCSET
7
SW1
U1
FAN6520A
Q1
HDRV
2
8 ^SW
Q2
LDRV
4
3 ^GND
6 ^FB
R2
C2
C1
R1
C3
R3
R4
C5a C5b
L _OUT
R6
R7
C9-10
C7
+V_OUT
C11
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
KZJ6.3VB152M10X12LL
4
Chemi-con
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
© 2005 Fairchild Semiconductor Corporation
FAN6520A Rev. 1.0.5
13
www.fairchildsemi.com