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SC221 Scheda tecnica(PDF) 4 Page - Semtech Corporation

Il numero della parte SC221
Spiegazioni elettronici  Synchronous Step-Down Regulator
PDF  14 Pages
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Produttore elettronici  SEMTECH [Semtech Corporation]
Homepage  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC221 Scheda tecnica(HTML) 4 Page - Semtech Corporation

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background image
4
SC221 x
Parameter
Symbol
Condition
Min
Typ
Max
Units
Feedback Leakage Current
I
FB
1
µA
ENABLE
EN Input High Voltage Threshold
V
ENH
1.2
V
EN Input “Low”Voltage Threshold
V
ENL
0.4
V
EN Input High Current
I
ENH
V
EN= VIN
-1.0
1.0
µA
EN Input Low Current
I
ENL
V
EN= AGND
-1.0
1.0
µA
Minimum Synchronization Frequency
f
SYN_MIN
Square wave applied at EN pin
3
MHz
PROTECTION
Over Temp Thermal Shutdown(1)
T
OT
150
°C
Thermal Shutdown Hysteresis(1)
T
HYST
15
°C
Notes
(1) Guaranteed by design. Not tested in production.
Electrical Characteristics (continued)
Unless otherwise specified: AVIN=PVIN = 3.6V, EN = AVIN = PVIN, C
IN=COUT =1.0μF, L=220nH. TA = 25°C for typical values, -40°C < TA = TJ < 85°C for
minimum and maximum values.



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