LTC3633 LINER [Linear Technology], LTC3633 Datasheet - Page 6

• Manufacturer Part Number: LTC3633
• Description: Dual Channel 3A, 15V Monolithic Synchronous Step-Down Regulator
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFORMANCE CHARACTERISTICS
LTC3633
otherwise noted.
6
2.502
2.500
2.506
2.504
2.498
2.496
2.494
6000
7000
5000
4000
3000
2000
1000
160
140
120
100
80
60
40
20
0
0
–50
–50
0
Internal MOSFET R
vs Temperature
Switch Leakage vs Temperature
V2P5 Load Regulation
–25
–25
2
MAIN SWITCH
SYNCHRONOUS SWITCH
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
TOP SWITCH
4
I
25
LOAD
25
(mA)
BOTTOM SWITCH
50
50
DS(ON)
6
75
75
8
100
100
3633 G16
3633 G10
3633 G13
125
10
125
50mV/DIV
10V/DIV
1A/DIV
V
OUT
600
SW
800
700
500
400
300
200
100
3.7
3.6
3.9
3.8
3.5
3.4
3.3
I
L
0
–50
V
I
4
Valley Current Limit
vs Temperature
Burst Mode Operation
Quiescent Current vs V
Burst Mode Operation
LOAD
OUT
–25
= 1.8V
= 100mA
6
T
T
T
A
A
A
0
= 90°C
= 25°C
= –40°C
TEMPERATURE (°C)
8
25
5μs/DIV
V
IN
10
(V)
50
12
IN
75
14
100
3633 G17
3633 G11
3633 G14
T
J
125
= 25°C, V
16
AC-COUPLED
100mV/DIV
2A/DIV
2.0
1.8
1.4
1.2
1.0
0.6
1.6
0.8
IN
V
20
18
16
14
12
10
OUT
8
6
4
2
0
–50
= 12V, f
Track Pull-Up Current
vs Temperature
I
Shutdown Current vs V
4
L
Load Step
V
I
C
R
LOAD
–25
OUT
ITH
ITH
= 220pF
6
= 13kΩ
= 1.8V
= 100mA to 3A
SW
0
TEMPERATURE (°C)
= 1MHz, L = 1μH unless
8
25
V
20μs/DIV
IN
10
(V)
50
12
IN
75
100
14
3633 G15
3633 G12
3633 G18
3633f
125
16