lt3684emse-trpbf Linear Technology Corporation, lt3684emse-trpbf Datasheet - Page 5

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

TYPICAL PERFORMANCE CHARACTERISTICS
1.290
1.285
1.280
1.275
1.270
1.265
1.260
1.255
1.250
140
120
100
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
80
60
40
20
0
0
–50
–50
0
Feedback Voltage
Minimum Switch On-Time
Boost Diode
–25
–25
BOOST DIODE CURRENT (A)
0.5
0
0
TEMPERATURE (°C)
TEMPERATURE (˚C)
25
25
1.0
50
50
75
75
1.5
100
100
3684 G10
3684 G16
3684 G13
125
125
2.0
–40
100
–20
–80
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
–60
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
60
40
20
80
0
1.065
0
–50
0
Switching Frequency
Soft-Start
Error Amp Output Current
R
T
0.5
= 45.3k
–25
1.165
RUN/SS PIN VOLTAGE (V)
1
0
FB PIN VOLTAGE (V)
TEMPERATURE (°C)
1 .265
1.5
25
50
2
1.365
2.5
75
100
3
(T
1.465
3684 G17
3684 G14
3684 G11
A
= 25°C unless otherwise noted)
3.5
125
1200
1000
400
800
600
200
4.5
4.0
3.5
3.0
2.5
2.0
12
10
0
4
0
8
6
2
0.001
0
0
Frequency Foldback
Minimum Input Voltage
RUN/SS Pin Current
R
T
200
= 45.3k
5
0.01
RUN/SS PIN VOLTAGE (V)
400
10
FB PIN VOLTAGE (mV)
LOAD CURRENT (A)
600
15
0.1
800
20
LT3684
1000
25
V
T
L = 4.7µH
f = 800kHz
1
OUT
A
= 25°C
1200 1400
30
= 3.3V
3684 G12
3684 G18
3684 G15
5
3684f
10
35