Datasheet

PWM FREQUENCY (kHz)
612
614
616
618
620
622
624
626
628
630
AMBIENT TEMPERATURE (
o
C)
0
10
20
25
35
45
55
65
75
85
95
105
115
125
7
7.2
7.4
7.6
7.8
8
8.2
8.4
8.6
BOOT PIN CURRENT (mA)
AMBIENT TEMPERATURE (
o
C)
0
10
20
25
35
45
55
65
75
85
95
105
115
125
AMBIENT TEMPERATURE (
o
C)
OPEARTING CURRENT(mA)
0 20
35
55
75
95
115
Without
Bootstrap
(V
boot
= 12V)
With
Bootstrap
(V
boot
= 5V)
1.46
1.48
1.5
1.52
1.54
1.56
1.58
1.6
1.62
1.64
BOOT PIN CURRENT (mA)
28.9
29.1
29.3
29.5
29.7
29.9
30.1
30.3
AMBIENT TEMPERATURE (
o
C)
0 10
20
25
35
45
55
65
75
85
95
105
115
125
20
30
40
50
60
70
80
90
100
0.2
1
3 5
7
9
OUTPUT CURRENT (A)
EFFICIENCY (%)
Vin = 5V
Vin = 12V
Vin = 3.3V
30
40
50
60
70
80
90
100
0.1 0.5
2
4
6
8
10
Vin = 5V
Vin = 12V
OUTPUT CURRENT (A)
EFFICIENCY (%)
LM2727, LM2737
www.ti.com SNVS205D –AUGUST 2002–REVISED MARCH 2013
Typical Performance Characteristics
Efficiency (V
O
= 1.5V) Efficiency (V
O
= 3.3V)
F
SW
= 300kHz, T
A
= 25°C F
SW
= 300kHz, T
A
= 25°C
Figure 2. Figure 3.
V
CC
Operating Current Bootpin Current
vs vs
Temperature Temperature for BOOTV = 12V
F
SW
= 600kHz, No-Load F
SW
= 600kHz, Si4826DY FET, No-Load
Figure 4. Figure 5.
Bootpin Current PWM Frequency
vs vs
Temperature with 5V Bootstrap Temperature
F
SW
= 600kHz, Si4826DY FET, No-Load for R
FADJ
= 43.2kΩ
Figure 6. Figure 7.
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