LT3645
5
3645f
TYPICAL PERFORMANCE CHARACTERISTICS
Buck Power Switch Voltage Drop
Buck Power Switch Current Limit
Undervoltage Lockout
Overvoltage Lockout
Switching Frequency
TEMPERATURE (癈)
50
0
600
650
800
750
700
850
900
950
1000
50
3645 G08
100 150
TEMPERATURE (癈)
50 3010
3.2
3.3
3.5
3.4
3.6
3.7
3.8
10 30 50 70 90 130
3645 G09
110 150
TEMPERATURE (癈)
50
0
36.5
37.0
38.0
37.5
38.5
39.0
39.5
50
3645 G10
100
150
RISING
FALLING
TEMPERATURE (癈)
50
0
700
750
740
730
720
710
770
760
780
790
800
50
3645 G11
100 150
TEMPERATURE (癈)
50
0
200
220
260
240
280
300
320
340
50
3645 G12
100 150
TEMPERATURE (癈)
604020 20 40 60
0
0
50
150
100
250
200
300
350
80
3645 G14
120
100 140160
OUTPUT CURRENT (mA)
0
50
100
150
0.12
0.16
0.14
0.06
0.08
0.10
0.04
0.02
0
3645 G15
200
LDO Power Transistor Current
Limit
LDO Dropout Voltage to V
CC2
LDO Dropout Voltage
LDO Load Regulation
LOAD CURRENT (mA)
0
50
0
50
150
100
250
200
300
350
100
3645 G13
150
200
OUT2 = 0.8V
OUT2 = 3.3V
SWITCH CURRENT (mA)
0 50 100 150 200 250 300 350 400 450
0
50
200
150
100
250
300
350
400
3645 G07
500