1.5A, 280kHz, Boost Regulator
LM5171
ELECTRICAL CHARACTERISTICS (Continued)
2.7V < Vcc < 30 V, 0°C < TJ < 125°C, unless otherwise stated.
Characteristics
Test Condition
Min
TYP
Max
Unit
Sync / Shutdown
Sync Range
320
2.5
-15
-
-
-
500
-
kHz
V
Sync Pulse Transition Threshold
Rise Time = 20 ns
SS = 0V
-3
-
SS Bias Current
Shutdown Threshold
Shutdown Delay
Power Switch
uA
SS = 3.0V
3
8
0.50
12
0.85
80
36
1.20
350
200
V
2.7V ≤ Vcc ≤ 12V
12V ≤ Vcc ≤ 30V
us
us
12
ISWITCH = 1.5A (Note 2)
-
-
0.8
0.55
0.09
1.9
1.7
250
10
1.4
1.00
0.45
2.4
V
V
Switch Saturation Voltage
ISWITCH = 1.0A, 0°C ≤ TA ≤ 70°C
ISWITCH = 10mA
-
V
50% duty cycle (Note 2)
1.6
1.5
200
-
A
Switch Current Limit
Minimum Pulse Width
80% duty cycle (Note 2)
2.2
A
FB = 0V, Isw = 4.0A (Note 2)
2.7V ≤ VCC ≤ 12V, 10mA ≤ Isw ≤1.0A
12V ≤ VCC ≤ 30V, 10mA ≤ Isw ≤ 1.0A
300
30
ns
mA/A
mA/A
-
-
100
2.7V ≤ VCC ≤ 12V,10mA ≤ Isw ≤ 1.5A
(Note2)
∆Icc/∆Ivsw
-
17
30
mA/A
12V ≤ VCC ≤ 30V, 10mA≤ Isw ≤ 1.5A
-
-
-
100
100
mA/A
uA
(Note2)
Switch Leakage
General
Vsw = 40V, Vcc = 0V
2.0
Operating Current
Isw = 0
-
5.5
12
8
60
mA
uA
uA
V
Vc < 0.8V, SS = 0V, 2.7V ≤ Vcc ≤ 12V
Vc < 0.8V, SS = 0V, 12V ≤ Vcc ≤ 30V
-
Shutdown Mode Current
-
-
100
2.70
210
-
Minimum Operating Input Voltage
Thermal Shutdown
Vsw Switching, Maximum Isw = 10mA
-
150
-
2.45
180
25
(Note 2)
°C
(Note 2)
Thermal Hysteresis
°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. ]
