LTC3835-1 Linear Technology, LTC3835-1 Datasheet - Page 6

• Manufacturer Part Number: LTC3835-1
• Description: Low IQ Synchronous Step-Down Controller
• Manufacturer: Linear Technology

www.datasheet4u.com
LTC3835-1
TYPICAL PERFORMANCE CHARACTERISTICS
6
–100
–200
–300
–400
–500
–600
–700
–800
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
1.20
120
100
200
100
80
40
60
20
0
0
–45
–45
0
Foldback Current Limit
TRACK/SS Pull-Up Current
vs Temperature
SENSE Pins Total Input Current
vs Temperature
TRACK/SS = 1V
–30
–30
0.1
–15
–15
0.2
FEEDBACK VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
0.3
0
0
V
V
V
OUT
OUT
OUT
0.4 0.5
15
15
= 10V
= 3.3V
= 0V
30
30
0.6 0.7 0.8
45
45
60
60
75
75
38351 G16
38351 G19
38351 G22
0.9
90
90
0.85
0.95
0.90
0.80
0.75
0.70
0.65
0.60
0.55
0.50
1.00
100
90
85
75
60
95
80
70
65
15
25
20
10
5
0
–45
–45
5
Quiescent Current
vs Temperature
Shutdown (RUN) Threshold
vs Temperature
Shutdown Current
vs Input Voltage
PLLIN/MODE = 0V
–30
–30
10
–15
–15
TEMPERATURE (°C)
TEMPERATURE (°C)
INPUT VOLTAGE (V)
15
0
0
15
15
20
30
30
45
45
25
60
60
30
T
75
38351 G17
75
38351 G20
38351 G23
A
= 25°C, unless otherwise noted.
90
35
90
806
804
802
800
798
796
794
792
800
700
600
500
400
300
200
100
808
12
10
8
6
4
2
0
0
–45
–45
0
Regulated Feedback Voltage
vs Temperature
Oscillator Frequency
vs Temperature
SENSE Pins Total Input
Bias Current vs I
V
SENSE
–30
–25
0.2
–15
= 3.3V
0.4
–5
TEMPERATURE (°C)
TEMPERATURE (°C)
0
I
V
V
V
TH
PLLLPF
PLLLPF
PLLLPF
0.6
VOLTAGE (V)
15
15
TH
= INTV
= FLOAT
= GND
30
35
0.8
45
CC
1.0
55
60
1.2
75
75
38351 G18
38351 G21
38351 G24
38351fc
1.4
90