SC424 SEMTECH [Semtech Corporation], SC424 Datasheet - Page 5

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

Electrical Characteristics (continued)
Parameter
Input Supplies (continued)
V5V Supply Current
FB Comparator Threshold
Frequency Range
Bootstrap Switch Resistance
Timing
On-Time
Minimum On-Time
Minimum Off -Time
Soft-Start
Soft-Start Ramp Time
Analog Inputs/Outputs
VOUT Input Resistance
Current Sense
Zero-Crossing Detector Threshold
(2)
(2)
(2)
V5V = 5V, f
V5V = 3V, f
Minimum f
Static V
Static V
SC424, EN/PSV = V5V, no load, V
SC414, EN/PSV = V5V, no load (f
V
IN
IN
SW
SW
IN
and load, -40 to +85 °C, V5V = 3V or 5V
Continuous mode operation,
Continuous mode operation
ENL, EN/PSV = 0V , V5V = 5V
ENL, EN/PSV = 0V , V5V = 3V
SW
and load, 0 to +85 °C, V5V = 3V or 5V
= 15V, V
LX - PGND, V5V = 3V or 5V
= 250kHz, EN/PSV = fl oating, no load
= 250kHz, EN/PSV = fl oating, no load
, (SC414 only), EN/PSV = V5V, no load
V
Conditions
V5V < 4.5V
FB
OUT
V5V = 5V
V5V = 3V
> 750mV
= 3V, R
(3)
TON
(2)
= 300kΩ
FB
SW
> 750mV
= 25kHz),
(2)
(2)
(2)
0.7425
0.744
1350
Min
-3
SC414/SC424
0.750
1500
Typ
320
390
500
0.4
2.5
1.7
25
10
80
3
2
1
4
0
0.7575
0.756
Max
1000
1650
+3
7
Units
kHz
mA
mV
ms
μA
kΩ
ns
ns
ns
Ω
V
V
5