LTC3801 LINER [Linear Technology], LTC3801 Datasheet - Page 3

• Manufacturer Part Number: LTC3801
• Description: Micropower Constant Frequency Step-Down DC/DC Controllers in ThinSOT
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFOR A CE CHARACTERISTICS
225
215
195
175
800
205
185
812
808
804
796
792
788
1.8
2.2
2.0
1.6
1.4
1.2
–50 –30
2
2
Input DC Supply Current (Normal)
vs Input Voltage
Undervoltage Lockout Threshold
vs Temperature
Regulated Feedback Voltage
vs Input Voltage
T
T
V
A
A
ITH
= 25 C
= 25 C
/RUN = 1.3V
3
3
V
4
4
–10
IN
TEMPERATURE ( C)
FALLING
5
5
10
V
V
IN
IN
V
6
6
IN
(V)
(V)
30
RISING
7
7
50
8
8
W
70
9
3801 G01
9
3801 G04
3801 G07
U
10
90
10
600
590
580
570
560
550
540
530
520
510
500
500
800
700
600
400
20
18
14
10
16
12
–50
–50
2
Oscillator Frequency
vs Temperature
Input DC Supply Current (SLEEP)
vs Input Voltage (LTC3801 Only)
Shutdown Threshold
vs Temperature
V
T
IN
A
= 25 C
–30
–30
= 4.2V
3
–10
4
–10
TEMPERATURE ( C)
TEMPERATURE ( C)
5
10
10
V
IN
6
(V)
30
30
7
50
50
8
V
IN
70
70
= 4.2V
9
3801 G02
3801 G08
3801 G05
90
90
10
LTC3801/LTC3801B
555
545
540
560
550
812
808
788
804
800
796
792
15
12
6
0
9
3
–50
2
2
Oscillator Frequency
vs Input Voltage
Input DC Supply Current
(Shutdown) vs Input Voltage
Regulated Feedback Voltage
vs Temperature
T
T
V
V
A
A
ITH
IN
= 25 C
= 25 C
–30
3
= 4.2V
/RUN = 0V
3
4
4
–10
TEMPERATURE ( C)
LTC3801B
5
5
10
V
V
IN
IN
6
6
(V)
(V)
30
LTC3801
7
7
50
8
8
80
9
9
3801 G03
3801 G06
3801 G09
3
3801f
10
10
90