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STEVAL-ISA091V1 Arkusz danych(PDF) 1 Page - STMicroelectronics

Numer części STEVAL-ISA091V1
Szczegółowy opis  2 A step-down switching power supply demonstration board based on the L7980 (QFN)
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Producent  STMICROELECTRONICS [STMicroelectronics]
Strona internetowa  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STEVAL-ISA091V1 Arkusz danych(HTML) 1 Page - STMicroelectronics

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Data brief
For further information contact your local STMicroelectronics sales office.
December 2011
Doc ID 022615 Rev 1
1/4
4
STEVAL-ISA091V1
2 A step-down switching power supply demonstration board
based on the L7980 (QFN)
Features
2 A DC output current
4.5 V to 28 V input voltage
Output voltage: 3.3 V (adjustable from 0.6 V)
250 kHz switching frequency, programmable
up to 1 MHz
Internal soft-start and enable
Low dropout operation: 100% duty cycle
Voltage feed-forward
Zero load current operation
Overcurrent and thermal protection
RoHS compliant
Description
The STEVAL-ISA091V1 is step-down switching
power supply based on STMicroelectronics’
L7980 switching regulator in a QFN package.
The L7980 features an embedded power
MOSFET and is capable of delivering up to 2 A of
current to the load, depending on the application
conditions.
The input voltage can range from 4.5 V to 28 V,
while the output voltage can be set from 0.6 V to
VIN.
Requiring a minimum number of external
components, the device includes an internal 250
kHz switching frequency oscillator that can be
externally adjusted up to 1 MHz.
STEVAL-ISA091V1
www.st.com


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