Datasheet

LTC4089/LTC4089-5
6
40895fc
V
IN
(V)
5
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
20 30
40895 G10
10 15
25 35
I
OUT
(A)
MINIMUM
TYPICAL
V
IN
(V)
5
1.8
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
20 30
40895 G11
10 15
25 35
I
OUT
(A)
MINIMUM
TYPICAL
SWITCH CURRENT (A)
0
V
CE(SW)
(mV)
150
450
500
550
0.4
0.8
1.0
40895 G12
50
350
250
100
400
0
300
200
0.2
0.6
1.4
1.2
1.6
1.8
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
TEMPERATURE (°C)
FREQUENCY (kHz)
720
760
800
125
40895 G13
680
640
700
740
780
660
620
600
–25–50
250
75 100 150
50
HVOUT (V)
0
SWITCHING FREQUENCY (kHz)
400
600
5
40895 G14
200
0
1
3
2
4
800
300
500
100
700
SHDN PIN VOLTAGE (V)
0
0
SWITCH CURRENT LIMIT (A)
0.2
0.6
0.8
1.0
2.0
1.4
0.50 1 1.25
40895 G15
0.4
1.6
1.8
1.2
0.25 0.75 1.50 1.75 2
DUTY CYCLE (%)
0
CURRENT LIMIT (A)
1.6
1.8
2.0
80
40895 G16
1.4
1.2
1.5
1.7
1.9
1.3
1.1
1.0
2010
4030
60 70 90
50
100
T
A
= –40°C
T
A
= –5°C
T
A
= 25°C
T
A
= 90°C
LOAD CURRENT (mA)
1
5.8
INPUT VOLTAGE (V)
6.0
6.2
6.4
6.6
10 100 1000
40895 G17
5.6
5.4
5.2
5.0
6.8
7.0
TO START
TO RUN
TYPICAL PERFORMANCE CHARACTERISTICS
High Voltage Regulator
Maximum Load Current, L = 10μH
High Voltage Regulator
Maximum Load Current, L = 33μH
High Voltage Regulator
Switch Voltage Drop
High Voltage Regulator
Switch Frequency
High Voltage Regulator
Frequency Foldback
High Voltage Regulator
Soft-Start
High Voltage Switch Current Limit
High Voltage Regulator
Typical Minimum Input Voltage
T
A
= 25°C, unless otherwise specifi ed.