LT3690 LINER [Linear Technology], LT3690 Datasheet - Page 4

• Manufacturer Part Number: LT3690
• Description: 42V, 2.5A Synchronous Step-Down Regulator
• Manufacturer: LINER [Linear Technology]

LT8610
TYPICAL PERFORMANCE CHARACTERISTICS
4
1.04
1.03
1.02
1.01
1.00
0.99
0.97
0.98
0.96
0.95
100
100
90
80
70
60
50
40
30
20
10
95
90
85
80
75
70
65
60
55
50
0
0.001
–55
0
Efficiency at 5V
Efficiency at 3.3V
EN Pin Thresholds
–25
0.5
0.1
LOAD CURRENT (mA)
5
TEMPERATURE (°C)
LOAD CURRENT (A)
EN FALLING
EN RISING
1
35
OUT
OUT
65
10
1.5
f
95
f
SW
SW
V
V
V
V
= 700kHz
= 700kHz
2
IN
IN
IN
IN
1000
125
= 12V
= 24V
= 12V
= 24V
8610 G07
8610 G01
8610 G04
155
2.5
–0.05
–0.10
–0.15
–0.20
–0.25
0.25
0.20
0.15
0.10
0.05
100
96
84
82
95
90
85
80
75
70
65
60
55
50
94
92
90
88
86
0
0.25
0
0
Efficiency at 3.3V
Efficiency vs Frequency
Load Regulation
V
V
V
OUT
OUT
IN
= 12V
0.5
= 3.3V
= 3.3V
SWITCHING FREQUENCY (MHz)
0.5
0.75
V
V
IN
IN
= 12V
= 24V
LOAD CURRENT (A)
LOAD CURRENT (A)
1
1
1.25
1.5
OUT
1.5
2
f
SW
1.75
V
V
= 700kHz
2
IN
IN
2.5
= 12V
= 24V
8610 G08
8610 G02
8610 G05
2.25
2.5
3
0.985
0.982
0.979
0.976
0.973
0.970
0.967
0.964
0.961
0.958
0.955
–0.02
–0.04
–0.06
–0.08
–0.10
0.10
0.08
0.06
0.04
0.02
100
90
80
70
60
50
40
30
20
10
0
0.001
0
–55
0
Efficiency at 5V
Reference Voltage
Line Regulation
V
I
LOAD
OUT
5
–25
= 3.3V
= 0.5A
10
0.1
LOAD CURRENT (mA)
5
TEMPERATURE (°C)
INPUT VOLTAGE (V)
15
35
20
OUT
25
65
10
30
f
95
SW
35
V
V
= 700kHz
IN
IN
1000
125
= 12V
= 24V
40
8610 G06
8610 G09
8610 G03
8610p
155
45