ltc3869gn-2 Linear Technology Corporation, ltc3869gn-2 Datasheet - Page 7

• Manufacturer Part Number: ltc3869gn-2
• Description: Ltc3869/ltc3869-2 - Dual, 2-phase Synchronous Step-down Dc/dc Controllers
• Manufacturer: Linear Technology Corporation

TYPICAL PERFORMANCE CHARACTERISTICS
1.24
1.22
1.20
1.18
1.16
1.14
1.12
1.10
1.08
4.1
3.9
3.7
3.5
3.3
3.1
2.9
2.7
2.5
–40
–50
Shutdown (RUN) Threshold
vs Temperature
Undervoltage Lockout Threshold
(INTV
–25
–20
CC
) vs Temperature
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
OFF
ON
25
20
45
40
35
30
25
20
15
10
5
0
–50
RISING
FALLING
Shutdown Current
vs Temperature
40
50
–25
60
75
0
TEMPERATURE (°C)
100
80
3869 G21
3869 G18
25
100
125
50
75
604
602
600
598
596
594
592
590
520
510
500
490
480
–40
5
100
Regulated Feedback Voltage
vs Temperature
Oscillator Frequency
vs Input Voltage
3869 G24
–15
10
125
15
10
INPUT VOLTAGE (V)
TEMPERATURE (°C)
20
35
25
60
3.8
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
30
85
5
Quiescent Current
vs Input Voltage without EXTV
35
110
10
3869 G19
3869 G22
T
A
125
= 25°C, unless otherwise noted.
40
15
LTC3869/LTC3869-2
INPUT VOLTAGE (V)
20
900
800
700
600
500
400
300
200
100
60
50
40
30
20
10
0
0
–50
25
5
Oscillator Frequency
vs Temperature
Shutdown Current
vs Input Voltage
–25
10
30
V
15
V
35
0
FREQ
V
TEMPERATURE (°C)
INPUT VOLTAGE (V)
CC
FREQ
FREQ
3869 G25
= INTV
25
= 1.2V
20
40
= GND
CC
50
25
75
30
100
35
3869 G20
3869 G23
7
3869f
125
40