參數(shù)資料
型號: 34063AM
廠商: BCD Semiconductor Manufacturing Limited
元件分類: DC/DC變換器
英文描述: 1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
中文描述: 1.5A的STEP-DOWN/STEP-UP/INVERTING DC - DC變換器
文件頁數(shù): 8/13頁
文件大?。?/td> 227K
代理商: 34063AM
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063A
Data Sheet
8
Sep. 2006 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
Typical Applications
Figure 10. Step-Up Converter (Note 5)
Note 5: This is a typical step-up converter configuration. In the steady state, if the resistor divider voltage at pin
5 is greater than the voltage in the non-inverting input, which is 1.25V determined by the internal reference, the
output of the comparator will go low. At the next swithching period, the output switch will not conduct and the
output voltage will eventually drop below its nominal voltage until the divider voltage at pin 5 is lower than 1.25V.
Then the output of the comparator will go high, the output switch will be allowed to conduct. Since V
PIN5
=V
OUT
*
R2/(R1+R2)=1.25(V), the output voltage can be decided by V
OUT
=1.25 * (R1+R2)/R2 (V).
+
-
I
PK
B
A
1.25V
Reference
Regulator
5
S
R
Q
C
T
OSC
V
IN
12V
C1
100
μ
F
R3 180
C
470pF
L1 150
μ
H
D1
1N5819
L2 1.0
μΗ
C3
100
μ
F
Optional
Filter
V
OUT
+
+
U1 AZ34063A
R1 47k
R2
2.2k
C2
330
μ
F
28V/175mA
+
Rsc
0.22
6
7
8
1
2
3
4
V
OUT
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
34063AM-E1 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
34063AN 制造商:IKSEMICON 制造商全稱:IK Semicon Co., Ltd 功能描述:DC-TO-DC CONVERTER CONTROL CIRCUITS
34063AP1 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DC-TO-DC CONVERTER CONTROL CIRCUITS
34063CM 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:0.8A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
34063CM-E1 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:0.8A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER