Datasheet

LTC3632
4
3632fc
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Load Current,
V
OUT
= 5V
Efficiency vs Input Voltage Line Regulation Load Regulation
Feedback Comparator Trip
Voltage vs Temperature
Feedback Comparator Hysteresis
Voltage vs Temperature
Peak Current Trip Threshold
vs Temperature and I
SET
LOAD CURRENT (mA)
0.1
70
EFFICIENCY (%)
75
80
85
90
1 10
3632 G01
65
60
55
50
95
100
V
IN
= 12V
V
IN
= 24V
V
IN
= 48V
V
OUT
= 5V
FIGURE 11 CIRCUIT
V
IN
= 36V
Efficiency vs Load Current,
V
OUT
= 3.3V
LOAD CURRENT (mA)
0.1
70
EFFICIENCY (%)
75
80
85
90
1 10
3632 G02
65
60
55
50
95
100
V
IN
= 12V
V
IN
= 24V
V
IN
= 48V
V
OUT
= 3.3V
FIGURE 11 CIRCUIT
V
IN
= 36V
Efficiency vs Load Current,
V
OUT
= 2.5V
LOAD CURRENT (mA)
0.1
70
EFFICIENCY (%)
75
80
85
90
1 10
3632 G03
65
60
55
50
95
100
V
IN
= 12V
V
IN
= 24V
V
IN
= 48V
V
OUT
= 2.5V
FIGURE 11 CIRCUIT
V
IN
= 36V
INPUT VOLTAGE (V)
10
70
EFFICIENCY (%)
75
80
85
90
20 30
40
50
3632 G04
95
100
15 25
35
45
V
OUT
= 5V
FIGURE 11 CIRCUIT
I
LOAD
= 20mA
I
LOAD
= 5mAI
LOAD
= 1mA
INPUT VOLTAGE (V)
5
–0.50
ΔV
OUT
/V
OUT
(%)
–0.40
–0.20
–0.10
0
0.50
0.20
15
25
30 50
3632 G05
–0.30
0.30
0.40
0.10
10 20
35
40
45
I
LOAD
= 20mA
FIGURE 11 CIRCUIT
LOAD CURRENT (mA)
0
4.95
OUTPUT VOLTAGE (V)
4.96
4.98
4.99
5.00
5.05
5.02
5
10
3632 G06
4.97
5.03
5.04
5.01
15
20
V
IN
= 10V
V
OUT
= 5V
FIGURE 11 CIRCUIT
TEMPERATURE (°C)
–40
0.798
FEEDBACK COMPARATOR TRIP VOLTAGE (V)
0.799
0.800
0.801
–10 20 50 80
3632 G07
110
V
IN
= 10V
TEMPERATURE (°C)
–40
4.4
FEEDBACK COMPARATOR HYSTERESIS (mV)
4.6
4.8
5.0
5.2
5.6
–10
20 50 80
3632 G08
110
5.4
V
IN
= 10V
TEMPERATURE (°C)
–40
0
PEAK CURRENT TRIP THRESHOLD (mA)
10
20
30
40
60
–10
20 50 80
3632 G09
110
50
I
SET
OPEN
I
SET
= GND
R
ISET
= 500k
V
IN
= 10V
T
A
= 25°C, unless otherwise noted.