LTC3835 Linear Technology, LTC3835 Datasheet - Page 7

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

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TYPICAL PERFORMANCE CHARACTERISTICS
1.10
1.05
0.95
0.80
1.20
1.15
1.00
0.90
0.85
–100
–200
–300
–400
–500
–600
–700
–800
200
100
4.2
4.1
4.0
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
–45
–45
0
–45
TRACK/SS Pull-Up Current
vs Temperature
Sense Pins Total Input Current
vs Temperature
Undervoltage Lockout Threshold
vs Temperature
–30
–30
–30
–15
–15
–15
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
0
0
0
V
V
V
OUT
OUT
OUT
RISING
FALLING
15
15
15
= 10V
= 3.3V
= OV
30
30
30
45
45
45
60
60
60
75
75
75
3835 G19
3835 G22
3835 G25
90
90
90
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.55
0.50
1.00
404
400
398
396
392
402
394
15
25
20
10
0
5
–45
5
5
Shutdown (RUN) Threshold
vs Temperature
Shutdown Current
vs Input Voltage
Oscillator Frequency
vs Input Voltage
–30
10
10
–15
TEMPERATURE (°C)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
15
15
0
15
20
20
30
45
25
25
60
30
30
75
T
3835 G20
3835 G23
3835 G26
A
= 25ºC, unless otherwise noted.
90
35
35
802
798
792
808
806
804
800
796
794
800
700
600
500
400
300
200
100
12
10
8
4
0
0
6
2
–45
–45
–45
Regulated Feedback Voltage
vs Temperature
Oscillator Frequency
vs Temperature
Shutdown Current
vs Temperature
–30
–30
–25
–15
–15
–5
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
0
V
V
V
0
PLLLPF
PLLLPF
PLLLPF
15
15
15
LTC3835
= INTV
= FLOAT
= GND
30
30
35
45
45
CC
55
60
60
75
75
75
3835 G21
3835 G24
3835 G27
3835fc
7
90
90
95