LT3667IUDD View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LT3667IUDD Datasheet PDF : 34 Pages
| |||
LT3667
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
Efficiency, VOUT = 3.3V
90
80
70
VIN1 = 24V
60
50
VIN1 = 12V
VIN1 = 36V
40
30
20
10
0
0.01
FRONT PAGE APPLICATION
BUCK REGULATOR ONLY
VOUT1 = 3.3V
L: MSS7341-223MLB
0.1
1
10
LOAD CURRENT (mA)
100
3667 G01
No-Load Supply Current
100
FRONT PAGE APPLICATION
90
80
70
60
50
40
30
20
10
0
5 10 15 20 25 30
INPUT VOLTAGE (V)
35 40
3667 G04
Maximum Load Current
700
FRONT PAGE APPLICATION
VOUT1 = 5V
650
600
TYPICAL
550
500
450
MINIMUM
400
5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
3667 G07
Efficiency, VOUT = 5V
90
80
VIN1 = 12V
70
VIN1 = 24V
60
VIN1 = 36V
50
40
30
20
10
0
0.01
FRONT PAGE APPLICATION
BUCK REGULATOR ONLY
VOUT1 = 5V
L: MSS7341-223MLB
0.1
1
10
LOAD CURRENT (mA)
100
3667 G02
No-Load Supply Current
FRONT PAGE APPLICATION
CATCH DIODE: CMMSH1-60
1m
INCREASED SUPPLY CURRENT
DUE TO CATCH DIODE LEAKAGE
AT HIGH TEMPERATURE
100µ
VFB1/2/3 vs Temperature
1.30
816
1.25
808
1.20
800
1.15
1.10
–50 –25
0 25 50 75 100
TEMPERATURE (°C)
792
VFB1
VFB2
VFB3
784
125 150
3667 G03
Maximum Load Current
700
FRONT PAGE APPLICATION
VOUT1 = 3.3V
650
600
TYPICAL
550
500
MINIMUM
450
10µ
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3667 G05
Switching Regulator
Load Regulation
0.10
FRONT PAGE APPLICATION
0.08 REFERENCED FROM VOUT1 AT 200mA LOAD
0.06
0.04
0.02
0
–0.02
–0.04
–0.06
–0.08
–0.10
0
50 100 150 200 250 300 350 400
LOAD CURRENT (mA)
3667 G08
400
5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
3667 G06
Switch Current Limit
800
SWITCH PEAK
CURRENT LIMIT
700
600
CATCH DIODE VALLEY CURRENT LIMIT
500
400
0
20
40
60
80 100
DUTY CYCLE (%)
3667 G09
3667fb
6
For more information www.linear.com/LT3667
Share Link: 