FAN5236 — Dual Mobile-Friendly DDR / Dual-Output PWM Controller
Typical Applications
(Continued)
V IN (BATTERY)
= 5 to 24V
14
VIN
28
6
BOOT1
C1
D1
+5
C5
L1
C9
+5
C4
R2
VCC
Q1A
5
ILIM1
EN1
11
8
12
4
HDRV1
SW1
2.5V at 6A
C6
+5
R3
C2
SS1
PW M 1
Q1B
2
3
7
LDRV1
PGND2
ISNS1
FPWM1 (VOUT1)
VSEN1
BOOT2
R6
R4
PG1
DDR
9
15
10
13
23
V IN
D2
C7
L2
C8
R7
1.8V at 6A
R5
+5
Q2A
EN2
PG2
SS2
21
16
17
24
25
HDRV2
SW2
Q2B
PW M 2
27
LDRV2
PGND2
ISNS2
VSEN2
ILIM2
C3
AGND
1
26
22
R8
R9
R1
FPWM2
20
19
18
Figure 6. Dual Regulator Application
Table 2. DDR Regulator BOM
Item
1
2
3
4
5
5
11
12
13
14
15
27
28
29
30
Description
Capacitor 68µf, Tantalum, 25V, ESR 95mΩ
Capacitor 10nf, Ceramic
Capacitor 68µf, Tantalum, 6V, ESR 1.8Ω
Capacitor 150nF, Ceramic
Capacitor 330µf, Poscap, 4V, ESR 40mΩ
Capacitor 0.1µF, Ceramic
56.2KΩ, 1% Resistor
10KΩ, 5% Resistor
3.24KΩ, 1% Resistor
1.82KΩ, 1% Resistor
1.5KΩ, 1% Resistor
Schottky Diode 30V
Inductor 6.4µH, 6A, 8.64mΩ
Dual MOSFET with Schottky
DDR Controller
Qty.
1
2
1
2
2
2
2
2
1
3
2
2
1
1
1
Ref.
C1
C2, C3
C4
C5, C7
C6, C8
C9
R1, R2
R3
R4
R5, R8,
R9
R6, R7
D1, D2
L1, L2
Q1
U1
AVX
Any
AVX
Any
Sanyo
Any
Any
Any
Any
Any
Vendor
Part Number
TPSV686*025#095
TAJB686*006
4TPB330ML
Any
Fairchild
Semiconductor
Panasonic
Fairchild
Semiconductor
Fairchild
Semiconductor
BAT54
ETQ-P6F6R4HFA
FDS6986AS
FAN5236
(2)
Note:
2. If currents above 4A continuous are required, use single SO-8 packages.
For more information, refer to the
Power MOSFET Selection Section and AN-6002 for design calculations.
© 2002 Fairchild Semiconductor Corporation
FAN5236 • Rev. 1.3.2
www.fairchildsemi.com
9
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
