SC424 SEMTECH [Semtech Corporation], SC424 Datasheet - Page 7

• Manufacturer Part Number: SC424
• Description: 6A Integrated FET Regulator with 5V LDO
• Manufacturer: SEMTECH [Semtech Corporation]

Electrical Characteristics (continued)
Notes:
(1) V
(2) Guaranteed by design.
(3) For V5V less than 4.5V, the On-Time may be limited by the V5V supply voltage and by V
(4) The switch-over threshold is the maximum voltage diff erential between the VLDO and VOUT pins which ensures that VLDO will internally
(5) The LDO drop out voltage is the voltage at which the LDO output drops 2% below the nominal regulation point. Thermal resistance, junction
VLDO Accuracy
LDO Current Limit
VLDO to VOUT Switch-over Threshold
VLDO to VOUT Non-switch-over Threshold
VLDO to VOUT Switch-over Resistance
LDO Drop Out Voltage
Parameter
Linear Regulator — LDO (not available for V5V < 5V)
section in the applications Information.
switch-over to V
VLDO will not switch-over to V
to ambient — guaranteed by design (°C/W)
IN
UVLO is programmable using a resistor divider from VIN to ENL to AGND. The ENL voltage is compared to an internal reference.
OUT
. The non-switch-over threshold is the minimum voltage diff erential between the VLDO and VOUT pins which ensures that
(5)
OUT
.
(4)
(4)
From V
Operating current limit, V
Start-up and foldback, V
IN
to V
VLDO load = 10mA
VLDO
Conditions
, V
V
OUT
VLDO
= +5V
= +5V, I
IN
VLDO
IN
= 12V
= 12V
= 100mA
IN
. See the TON Limitations and V5V Supply Voltage
Min
-140
-450
135
4.9
SC414/SC424
Typ
200
5.0
1.2
85
2
Max
+140
+450
5.1
Units
mA
mV
mV
Ω
V
V
7