FAN5026 — Dual DDR / Dual-Output PWM Controller
Typical Application
Figure 5. DDR Regulator Application
Table 1. DDR Regulator BOM
Description
Capacitor 68 f, Tantalum, 25V, ESR 150mΩ
Capacitor 10nf, Ceramic
Capacitor 68 f, Tantalum, 6V, ESR 1.8Ω
Capacitor 150nF, Ceramic
Capacitor 180 f, Specialty Polymer 4V, ESR 15mΩ
Capacitor 1000 f, Specialty Polymer 4V, ESR 10mΩ
Capacitor 0.1 F, Ceramic
1.82KΩ, 1% Resistor
56.2KΩ, 1% Resistor
10KΩ, 5% Resistor
3.24KΩ, 1% Resistor
1.5KΩ, 1% Resistor
Schottky Diode 30V
Inductor 6.4 H, 6A, 8.64mΩ
Inductor 0.8 H, 6A, 2.24mΩ
Dual MOSFET with Schottky
DDR Controller
Qty.
1
2
1
2
2
1
2
3
1
2
1
2
2
C1
Ref.
AVX
Any
AVX
Any
C2, C3
C4
C5, C7
C6A, C6B
(1)
C8
C9
R1, R2, R3
R3
R4
R5
R7, R8
D1, D2
L1
L2
Q1, Q2
U1
Vendor
Part Number
TPSV686*025#0150
TAJB686*006
Panasonic
Kemet
Any
Any
Any
Any
Any
Any
Fairchild Semiconductor
Panasonic
Panasonic
Fairchild Semiconductor
Fairchild Semiconductor
EEFUE0G181R
T510E108(1)004AS4115
BAT54
ETQ-P6F6R4HFA
ETQ-P6F0R8LFA
FDS6986AS
(2)
FAN5026
1
1
2
1
Notes:
1. C6 = 2 X 180 F in parallel.
2. Suitable for typical notebook computer application of 4A continuous, 6A peak for V
DDQ
. If continuous operation
above 6A is required, use single SO-8 packages.
For more information, refer to the Power MOSFET Selection
Section and use AN-6002 for design calculations.
© 2005 Fairchild Semiconductor Corporation
FAN5026 • Rev. 1.0.8
www.fairchildsemi.com
7
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