SC1456 Ver la hoja de datos (PDF) - Semtech Corporation
Número de pieza
componentes Descripción
Fabricante
SC1456 Datasheet PDF : 10 Pages
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SC1456
POWER MANAGEMENT
Electrical Characteristics (Cont.)(1)
Unless specified: VINx = 3.6V, VSETx = GND, VENx = 3.6V, TA = 25°C. Values in bold apply over full operating ambient temperature range.
Parameter
Symbol
Test Conditions
Min Typ Max Units
Load Regulation (Cont.)(2) REG(LOAD)
IOUT = 0mA to 50mA, VSET = VOUT
-2.5 -7.5 mV
-15.0
IOUT = 0mA to 100mA, VSET = VOUT
-5
-15 mV
-30
Dropout Voltage(2)(3)
VD
IOUT = 1mA
IOUT = 50mA
1.1
mV
55
90 mV
120
IOUT = 100mA
110 180 mV
240
Current Limit
Output Voltage Noise
Power Supply Rejection
Ratio
ILIM
en
PSRR
150
10Hz to 99kHz, IOUT = 50mA, COUT = 1µF
10Hz to 99kHz, IOUT = 50mA, COUT = 100µF
f = 120Hz
240 350 mA
90
µVRMS
75
55
dB
EN1, EN2
EN Input Threshold
VIH
VIL
EN Input Bias Current(4)
IEN
VEN = VIN
1.8
V
0.4
0
100 nA
200
SET1, SET2
Sense/Select Threshold
SET Reference Voltage(2)
VTH
VSET
SET Input Leakage
ISET
Current(4)
IOUT = 1mA
1mA ≤ IOUT ≤ 150mA, 2.5V ≤ VIN ≤ 5.5V
VSET = 1.3V
20
55
80
mV
1.225 1.250 1.275 V
1.206
1.294
0.015 2.500 nA
5.000
Over Temperature Protection
High Trip Level
Hysteresis
THI
THYST
170
°C
10
°C
Notes:
(1) This device is ESD sensitive. Use of standard ESD handling precautions is required.
(2) Low duty cycle pulse testing with Kelvin connections required.
(3) Defined as the input to output differential at which the output voltage drops 100mV below the value measured
at a differential of 2V.
(4) Guaranteed by design.
2005 Semtech Corp.
3
www.semtech.com
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