FAN5069_08 Datasheet, PDF (2/22 Pages) Fairchild Semiconductor – PWM and LDO Controller Combo

Typical Application
R_VCC
+12V
+5V
VCC
15
C9
EN
7
C3
SS
4
R4 _ILIM
3
R5 _R(T)
2
AGND
8
PWM OUT
FAN5069
PWM
LDO OUT
C8
Q3
GLDO ₁₆
R7 _FBLDO
1
R6
ULDO
CONTROL
14 ^R(RAMP)
3 TO 24V
R8
11 ^BOOT
C5
Q1
10 ^HDRV
9 ^SW
Q2
13 ^LDRV
12 ^PGND
6 ^FB
C2
5 ^COMP
C4
L1
C1
R3
C7
PWM OUT
C6
R1
R2
Figure 1. Typical Application Diagram
© 2005 Fairchild Semiconductor Corporation
FAN5069 Rev. 1.1.5
2
www.fairchildsemi.com