ncp3121 ON Semiconductor, ncp3121 Datasheet - Page 6

• Manufacturer Part Number: ncp3121
• Description: Dual 3.0 A, Step-down Dc/dc Switching Regulator
• Manufacturer: ON Semiconductor

3. DC value.
4. Guaranteed by design.
ELECTRICAL CHARACTERISTICS
noted. R
TRACK
POWER GOOD
ENABLE/POWER SEQUENCING
THERMAL SHUTDOWN
Tracking Voltage Range
Tracking Voltage Offset
Track Bias Current
PG Threshold
PG Shutdown Mode
PG Delay
PG Low Level Voltage
PG Hysteresis
PG Leakage Current
Enable Internal Pullup Current
Sequence Internal Pulldown Current
Enable Threshold High
Sequence Threshold Low
Overtemperature Trip Point
Hysteresis
T
= open kW)
Characteristic
(-40°C < T
EN Tied to SEQ, V
EN Tied to SEQ, V
J
Feedback Voltage Falling,
Feedback Voltage Rising,
< 125°C, T
Falling Edge of V
Rising Edge of V
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EN Tied to SEQ
EN Tied to SEQ
V
V
TRACK
TRACK
I
V
Conditions
V
(PG)
NCP3121
PG
PG
(Note 4)
J
= 5.5 V
= 1 mA
= 3.3V
= 25°C for typical values, V
= 0.6 V
= 0.6 V
6
EN,SEQ
PG
out
out
= 3.3 V
= 0V,
90% V
10% V
Min
2.0
AVIN
0
FB
FB
=12 V, V
15% V
Typ
100
160
4.0
50
10
45
16
15
VIN
FB
=12 V, unless otherwise
20% V
Max
V
500
0.3
1.0
0.8
15
FB
FB
Unit
mV
mV
nA
mA
mA
mA
°C
°C
ms
ms
V
V
V
V
V
V