SC122 Datasheet, PDF (4/13 Pages) Semtech Corporation – Low Voltage Synchronous Boost Converter

SC122
Electrical Characteristics (continued)
Parameter
N-Channel Current Limit
LX Leakage Current PMOS
LX Leakage Current NMOS
Logic Input High
Logic Input Low
Logic Input Current High
Logic Input Current Low
Symbol
I
LIM(N)
I_LXPLK
I
LXNLK
V
IH
V
IL
I_IH
I
IL
Conditions
V = 1.2V
IN
T_A = 25°C, V_LX = 0V, V_OUT = 3.3V
T = 25°C, V = 3.3V, V = 3.3V
A
LX
OUT
V = 1.2V
IN
V = 1.2V
IN
V_EN = V_IN = 1.2V
V = 0V
EN
Min Typ Max Units
350
mA
1
μA
1
μA
0.4
V
0.1
V
1
μA
-0.2
μA
NOTES:
(1) Quiescent operating current is drawn from the OUT pin while in regulation. The quiescent operating current projected to the IN pin is
approximately I_Q × (V_OUT/V_IN).
(2) Restart occurs when the EN pin transitions from low to high while the output voltage is at or near the regulation value (3.3V). See the
application section “The Enable Pin” for details.
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