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LP3311S Fiches technique(PDF) 6 Page - Lowpower Semiconductor inc

No de pièce LP3311S
Description  1MHz Fixed-Frequency PWM Operation
PDF  7 Pages
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Fabricant  POWER [Lowpower Semiconductor inc]
Site Internet  http://www.lowpowersemi.com
Logo POWER - Lowpower Semiconductor inc

LP3311S Fiches technique(HTML) 6 Page - Lowpower Semiconductor inc

  LP3311S Datasheet HTML 1Page - Lowpower Semiconductor inc LP3311S Datasheet HTML 2Page - Lowpower Semiconductor inc LP3311S Datasheet HTML 3Page - Lowpower Semiconductor inc LP3311S Datasheet HTML 4Page - Lowpower Semiconductor inc LP3311S Datasheet HTML 5Page - Lowpower Semiconductor inc LP3311S Datasheet HTML 6Page - Lowpower Semiconductor inc LP3311S Datasheet HTML 7Page - Lowpower Semiconductor inc  
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Preliminary Datasheet
LP3311S
LP3311s – 02 Version 2.0 Datasheet
May.-2013
www.lowpowersemi.com
Page 6 of 7
application circuit is shown in the Figure 6. In this
circuit, the output ripple depends on the frequency of
PWM signal. For smaller output voltage ripple
(<100mV), the recommended frequency of 2.8V PWM
signal should be above 2kHz. To fix the frequency of
PWM signal and change the duty cycle of PWM signal
can get different output current. According to the
application circuit of Figure 5, output current is from
20.5mA to 5.5mA by adjusting the PWM duty cycle
from 10% to 90%.
24K
200K
5K
0.1uF
PWM
1uF
4.7uH
10uF
Vin
GND
EN
FB
Vin
SW
OVP
LP3311S
10R



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