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SI3460-EVB Folha de dados(PDF) 10 Page - Silicon Laboratories

Nome de Peças SI3460-EVB
Descrição Electrónicos  IEEE 802.3af PSE INTERFACE AND DC-DC CONTROLLER
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Fabricante Electrônico  SILABS [Silicon Laboratories]
Página de início  http://www.silabs.com
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SI3460-EVB Folha de dados(HTML) 10 Page - Silicon Laboratories

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Si3460
10
Preliminary Rev. 0.4
4.2. DC-DC Converter Performance Characteristics
The dc-dc converter utilizes a digital control loop architecture operating at 250 kHz. The complete converter is
comprised of the Si3460 controller and the external components in the Si3460-EVB schematics. The performance
specifications in Table 7 are typical for the Si3460-EVB reference design.
Table 7. DC-DC Performance1
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
DC-DC Controller Performance Characteristics2
PWM operating frequency
fPWM
250
kHz
Efficiency
η
VIN to VOUT
75
%
Load regulation
RLOAD
Minimum to maximum load
±1
%
Line regulation
RLINE
For VIN ranging from 11 to 16 V
±1
%
Output ripple
R
250 kHz PWM frequency
< 500 Hz
100
200
mV
Notes:
1. Typical specifications are based on an ambient operating temperature of 25 ºC and VIN =+12 V.
2. See “4. Si3460-EVB Performance Characteristics” for more details.


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