参数资料
型号: AZ34063AMTR
厂商: Electronic Theatre Controls, Inc.
元件分类: DC/DC变换器
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变换器
文件页数: 8/13页
文件大小: 186K
代理商: AZ34063AMTR
0.8A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063
Data Sheet
8
Apr. 2005 Rev. 2. 1
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 Vpin5 = V
OUT
* R2/(R1+R2) = 1.25(V), the output voltage can be decided by V
OUT
= 1.25 * (R1+R2)/R2 (V).
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