lt3684emse-trpbf Linear Technology Corporation, lt3684emse-trpbf Datasheet - Page 4

• Manufacturer Part Number: lt3684emse-trpbf
• Description: 36v, 2a, 2.8mhz Step-down Switching Regulator
• Manufacturer: Linear Technology Corporation

LT3684
TYPICAL PERFORMANCE CHARACTERISTICS
4
100
4.0
3.0
2.5
2.0
1.5
1.0
0.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
4.5
90
70
60
50
80
0
–50
5
Effi ciency (V
0
Maximum Load Current
Switch Current Limit
0.2 0.4 0.6 0.8 1.0 1.2 1.4
–25
10
MINIMUM
DUTY CYCLE = 10 %
DUTY CYCLE = 90 %
0
INPUT VOLTAGE (V)
TEMPERATURE (°C)
LOAD CURRENT (A)
OUT
15
25
V
V
IN
IN
= 5.0V)
= 12V
= 24V
TYPICAL
L: NEC PLC-0745-4R7
f = 800kHz
50
20
75
V
T
L = 4.7µH
f = 800kHz
A
OUT
= 25°C
25
1.6
100
= 3.3V
1.8 2.0
3684 G04
3684 G07
3684 G01
125
30
700
600
400
300
200
500
100
4.0
3.5
3.0
2.5
2.0
1.5
1.0
90
85
80
75
70
65
60
55
50
0
5
0
Effi ciency (V
0
Switch Voltage Drop
Maximum Load Current
0.2 0.4 0.6 0.8 1.0 1.2 1.4
500
10
1000
V
SWITCH CURRENT (mA)
TYPICAL
MINIMUM
IN
INPUT VOLTAGE (V)
LOAD CURRENT (A)
= 24V
OUT
15
1500
= 3.3V)
2000
L: NEC PLC-0745-4R7
f = 800kHz
V
20
IN
= 12V
2500
V
IN
= 7V
V
T
L = 4.7µH
f = 800kHz
25
1.6
A
OUT
3000 3500
= 25°C
(T
1.8 2.0
= 5V
3684 G05
3684 G08
3684 G02
A
= 25°C unless otherwise noted)
30
50
40
20
90
80
70
60
30
4.0
3.5
3.0
2.5
2.0
1.5
1.0
10
90
85
80
75
70
65
60
55
50
0
0
0
Effi ciency
0
Boost Pin Current
Switch Current Limit
500
0.5
SWITCHING FREQUENCY (MHz)
20
1000
SWITCH CURRENT (mA)
V
IN
DUTY CYCLE (%)
1
V
= 24V
40
1500
IN
= 12V
1.5
2000
60
2
2500 3000
V
L = 10µH
LOAD = 1A
OUT
80
2.5
= 3.3V
3684 G09
3684 G03
3684 G06
3684f
3500
100
3