NCP451
www.onsemi.com
4
ELECTRICAL CHARACTERISTICS Min & Max Limits apply for T
A
between −40°C to +85°C for V
IN
between 0.75 V to 5.0 V
(Unless otherwise noted). Typical values are referenced to T
A
= + 25 °C and V
IN
= 3.6 V (Unless otherwise noted).
Symbol Parameter Conditions Min Typ Max Unit
POWER SWITCH
R
DS(on)
Static drain−source on−state
resistance
V
IN
= 5 V
I
OUT
= 200 mA, T
A
= 25°C 12 20
mW
T
J
= 125°C 25
V
IN
= 3.6 V
I
OUT
= 200 mA, T
A
= 25°C 12 20
T
J
= 125°C 25
V
IN
= 3.3 V
I
OUT
= 200 mA, T
A
= 25°C 13 24
T
J
= 125°C 28
V
IN
= 2.5 V
I
OUT
= 200 mA, T
A
= 25°C 13 24
T
J
= 125°C 28
V
IN
= 1.8 V
I
OUT
= 200 mA, T
A
= 25°C 13 24
T
J
= 125°C 28
V
IN
= 1.0 V
I
OUT
= 200 mA, T
A
= 25°C 13 24
T
J
= 125°C 28
V
IN
= 0.75 V
I
OUT
= 200 mA, T
A
= 25°C 15 28
T
J
= 125°C 35
Rdis Output discharge path EN = low
NCP451 1.2 1.7
MW
NCP451A 1.0 1.7
kW
V
IH
High−level input voltage 0.8
V
V
IL
Low−level input voltage
0.4
I
EN
EN pin leakage current V
IN
= 3.6 V 0.1
mA
QUIESCENT CURRENT
Istd
Standby current V
IN
= 4.2 V EN = low, No load 0.9 2
mA
Iq Quiescent current
V
IN
= 3.6 V
V
IN
= 2.5 V
V
IN
= 1.8 V
V
IN
= 1.2 V
V
IN
= 1.0 V
V
IN
= 0.75 V
EN = high, No load (Note 7) 8 15
mA
TIMINGS
T
EN
Enable time
V
IN
= 3.6 V
(Note 8)
R
L
= 25 W, C
OUT
= 1 mF
600
ms
T
R
Output rise time
R
L
= 25 W, C
OUT
= 1 mF
800
T
ON
ON time (T
EN
+
T
R)
R
L
= 25 W, C
OUT
= 1 mF
1400
T
F
Output fall time
R
L
= 25 W, C
OUT
= 1 mF
55
TIMINGS
T
EN
Enable time
V
IN
= 3.6 V
(Note 8)
R
L
= 10 W, C
OUT
= 0.1 mF
540
ms
T
R
Output rise time
R
L
= 10 W, C
OUT
= 0.1 mF
670
T
ON
ON time (T
EN
+
T
R)
R
L
= 10 W, C
OUT
= 0.1 mF
1210
T
F
Output fall time
R
L
= 10 W, C
OUT
= 0.1 mF
2.5
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
7. Production tested at V
IN
= 3.6 V.
8. Parameters are guaranteed for C
LOAD
and R
LOAD
connected to the OUT pin with respect to the ground
