参数资料
型号: AZ34063P
厂商: Electronic Theatre Controls, Inc.
元件分类: DC/DC变换器
英文描述: 0.8A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
中文描述: 0.8A STEP-DOWN/STEP-UP/INVERTING DC - DC变换器
文件页数: 10/13页
文件大小: 186K
代理商: AZ34063P
0.8A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063
Data Sheet
10
Apr. 2005 Rev. 2. 1
BCD Semiconductor Manufacturing Limited
Typical Applications (Continued)
Figure 12. Voltage Inverting Converter (Note 7)
Note 7: This is a typical inverting converter configuration. The working process in the steady state is similar to
step-up converter, the difference in this situation is that the voltage at the non-inverting pin of the comparator is
equal to 1.25V+V
OUT
, then Vpin5 = V
OUT
* R2/(R1+R2) = 1.25V+V
OUT
, so the output voltage can be decided by
V
OUT
= -1.25 * (R1+R2)/R1 (V).
+
-
I
PK
B
A
1.25V
Reference
Regulator
8
7
5
4
3
2
1
S
R
Q
6
C
T
OSC
Vin
4.5-6V
C1
100
P
F
Rsc
0.24
L2 1.0
P+
Optional
Filter
Vout
D1
1N5819
L1
88
P+
+
C3
100
P
F
+
CT
1500pF
R1 953
R2
8.2k
C2
1000
P
F
Vout
-12V/100mA
+
U1 AZ34063
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