LTC3632 LINER [Linear Technology], LTC3632 Datasheet - Page 4

• Manufacturer Part Number: LTC3632
• Description: High Effi ciency, High Voltage 20mA Synchronous Step-Down Converter
• Manufacturer: LINER [Linear Technology]

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