ncv8881 ON Semiconductor, ncv8881 Datasheet - Page 8

• Manufacturer Part Number: ncv8881
• Description: Ncv8881 1.5a Automotive Buck Regulator With Watchdog
• Manufacturer: ON Semiconductor

SMPS REGULATOR
ELECTRICAL CHARACTERISTICS
otherwise) Min/Max values are valid for the temperature range −40°C vT
design or statistical correlation.
SYNCHRONIZATION
DUTY CYCLE LIMITATIONS
CURRENT LIMIT
SHORT CIRCUIT DETECTOR
POWER SWITCH
7. Guaranteed by design.
Minimum High Pulse Width
Minimum Low Pulse Width
Minimum Off Time
Minimum On Time
Current Limit
Current Limit Response Time (Note 7)
FB Pin Threshold
Soft−Start Timer
ON Resistance
SW Risetime
SW Falltime
Parameter
(V
VIN
= 13.2 V, V
t
t
Symbol
PWHIMIN
t
t
PWLIMIN
t
R
MINOFF
V
SSTIMR
MINON
FBSC
DSON
http://onsemi.com
EN
time V
time V
SW falling to SW rising
SW rising to SW falling
From time of power switch turn−on
% of V
From start of Soft−start, % of t
V
(Note 7)
Inductor current = 1 A, T
(Note 7)
Inductor current = 1 A, T
(Note 7)
= 2.0 V, V
BST
= V
8
SYNC
SYNC
FBR
SW
BST
J
is above 2 V (Note 7)
is below 0.8 V (Note 7)
+ 6.0 V, T
v 150 °C unless noted otherwise, and are guaranteed by test,
= V
Conditions
SW
+ 8.2 V, C
J
= 25°C
J
J
= 25°C
= 25°C
SS
BST
(Note 7)
= 0.1 mF, C
Min
1.75
100
100
50
50
50
70
IN
= 4.7 mF unless specified
Typ
120
330
2.2
76
30
30
Max
200
550
200
250
360
85
3
Unit
mW
ns
ns
ns
ns
ns
ns
ns
%
%
A