1.5A, 280kHz, Boost Regulator
ELECTRICAL CHARACTERISTICS
(Continued)
2.7V < Vcc < 30 V, 0°C < T
J
< 125°C, unless otherwise stated.
LM5171
Characteristics
Sync / Shutdown
Sync Range
Sync Pulse Transition Threshold
SS Bias Current
Shutdown Threshold
Shutdown Delay
Power Switch
Test Condition
Min
TYP
Max
Unit
320
Rise Time = 20 ns
SS = 0V
SS = 3.0V
2.5
-15
-
0.50
2.7V
≤
Vcc
≤
12V
12V
≤
Vcc
≤
30V
12
12
-
-
-3
3
0.85
80
36
500
-
-
8
1.20
350
200
kHz
V
uA
V
us
us
I
SWITCH
= 1.5A
(Note 2)
Switch Saturation Voltage
I
SWITCH
= 1.0A, 0
°C
≤
T
A
≤
70
°C
I
SWITCH
= 10mA
Switch Current Limit
Minimum Pulse Width
50% duty cycle
(Note 2)
80% duty cycle
(Note 2)
FB = 0V, Isw = 4.0A
(Note 2)
2.7V
≤
V
CC
≤
12V, 10mA
≤
Isw
≤1.0A
12V
≤
V
CC
≤
30V, 10mA
≤
Isw
≤
1.0A
∆Icc/∆Ivsw
2.7V
≤
V
CC
≤
12V,10mA
≤
Isw
≤
1.5A
(Note2)
-
-
-
1.6
1.5
200
-
-
-
-
-
0.8
0.55
0.09
1.9
1.7
250
10
-
17
-
2.0
1.4
1.00
0.45
2.4
2.2
300
30
100
30
100
100
V
V
V
A
A
ns
mA/A
mA/A
mA/A
mA/A
uA
12V
≤
V
CC
≤
30V, 10mA≤ Isw
≤
1.5A
(Note2)
Switch Leakage
General
Operating Current
Shutdown Mode Current
Minimum Operating Input Voltage
Thermal Shutdown
Thermal Hysteresis
Vsw = 40V, Vcc = 0V
Isw = 0
Vc < 0.8V, SS = 0V, 2.7V
≤
Vcc
≤
12V
Vc < 0.8V, SS = 0V, 12V
≤
Vcc
≤
30V
Vsw Switching, Maximum Isw = 10mA
(Note 2)
(Note 2)
-
-
-
-
150
-
5.5
12
-
2.45
180
25
8
60
100
2.70
210
-
mA
uA
uA
V
°C
°C
Note 2. Guaranteed by design, not 100% tested in production.
Dec. 2010 - Rev. 1.2.1
-
5
-
HTC
HTC [ HTC KOREA TAEJIN TECHNOLOGY CO. ]
