SC251 Ver la hoja de datos (PDF) - Semtech Corporation
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SC251 Datasheet PDF : 19 Pages
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SC251
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Parameter
Symbol
Shutdown Current
ISD
P-Channel Current Limit
ILIM(P)
VDAC Pass-through
Mode Threshold
VDAC PASS
VDAC Pass-through
Mode Hysteresis
VREF Output
VREF LDO Dropout
VREF Load Current
VREF Load Regulation
VREF Line Regulation
GD Load Capacitance
GD Source Current
GD Sink Current
RDSon of P-Channel FET
RDSon of N-Channel FET
RDSon of Bypass
P-Channel FET
LX Pin PMOS Leakage
VOUT Pin Bypass
FET Leakage
VDAC HYST
VREF
VREF DO
IREF
VREF LDREG
VREF LNREG
CGD
IGDH
IGDL
RPFET
RNFET
RPASS
ILLXP
ILVOUT
Oscillator Frequency
fOSC
Logic Input High
Logic Input Low
Logic Input Current High
Logic Input Current Low
Enable Transient Over/
Undershoot (1)
VIH
VIL
IIH
IIL
OSEN
Conditions
EN = GND
VDAC rising
VDAC falling
IREF = 10mA
IREF = 10mA
IREF = 0.1mA to 10mA
IREF = 1 mA
TA = 25°C
VDAC = 1.4V, TA = 25°C
VIN = 3V, IOUT = 100mA
VIN = 3V, IOUT = 100mA
IOUT = 600mA, VIN = 3V, VDAC = 1.4V
EN=GND, VIN = 3.6V, LX = GND
EN=GND, VIN = 3.6V, VOUT = GND
VDAC > 0.95V
VDAC < 0.95V
EN / VMODE increasing
EN / VMODE decreasing
EN / VMODE = 5.0V
EN / VMODE = 0V
© 2006 Semtech Corp.
3
Min
0.9
1.24
1.2
2.75
0.85
0.65
1.6
Typ
Max
Units
0.1
3
μA
1.3
1.7
A
1.28
1.32
V
1.245
40
mV
2.85
2.95
V
100
mV
10
mA
0.05 %/mA
0.3
%/V
10
nF
0.5
2
mA
75
150
mA
0.4
Ω
0.25
Ω
0.2
Ω
0.1
μA
0.1
3
μA
1
1.15
MHz
1.15
V
0.6
V
±2
μA
±2
μA
20
%
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