AZ7500F Datasheet, PDF (10/13 Pages) BCD Semiconductor Manufacturing Limited – PULSE-WIDTH-MODULATION CONTROL CIRCUITS

PULSE-WIDTH-MODULATION CONTROL CIRCUITS
Typical Application
Preliminary Datasheet
AZ7500F
(V_I=10V to 40V)
V_I(+)
KSA1010
47
150
0.1µ
1M
12
11
8
3
V_CC
C2
C1
FEED
BACK
+ _50µ
AZ7500F
50V
2
1IN-
14
REF
2IN- ¹⁵
1IN+ ¹
OUTPUT
DTC GND E1 CTRL
479
13
2IN+ ¹⁶
E2 RT CT
10 6 5
+
47k 0.001µ
V_I(-)
5.1k
5.1k
150
1mH
2A
(V_O=5V, I_O=1A)
V_O
+ _50µ
10V
5.1k
50µ ⁺
10V
GND
0.1
Figure 9. Pulse Width Modulated Step-Down Converter
Oct. 2009 Rev. 1. 2
BCD Semiconductor Manufacturing Limited
10