LTC3633 LINER [Linear Technology], LTC3633 Datasheet - Page 5

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

TYPICAL PERFORMANCE CHARACTERISTICS
otherwise noted.
100
–0.4
100
80
90
70
60
50
40
30
20
10
1.6
1.2
0.8
0.4
0.0
80
90
70
60
50
40
30
20
10
0
0
0.1
Effi ciency vs Load Current
Burst Mode Operation
1
Effi ciency vs Load Current
Load Regulation
0
V
OUT
= 1.8V
0.5
1
10
LOAD CURRENT (mA)
LOAD CURRENT (mA)
1
10
I
LOAD
100
1.5
Burst Mode OPERATION
FORCED CONTINUOUS
(A)
100
2
1000
V
V
V
V
V
V
V
1000
IN
IN
IN
IN
IN
IN
IN
2.5
= 4V
= 8V
= 12V
= 4V
= 8V
= 12V
= 15V
3633 G01
3633 G04
3633 G07
10000
10000
3
100
100
–10
90
80
70
60
50
40
30
20
10
90
95
85
80
75
70
65
60
10
–2
–4
–6
–8
0
8
6
4
2
0
–50
1
Oscillator Frequency
vs Temperature
Effi ciency vs Load Current
Forced Continuous Mode
Operation
Effi ciency vs Input Voltage
Burst Mode Operation
4
V
OUT
–25
= 1.8V
6
10
I
I
I
I
LOAD
LOAD
LOAD
LOAD
LOAD CURRENT (mA)
0
TEMPERATURE (°C)
INPUT VOLTAGE (V)
8
= 10mA
= 100mA
= 1A
= 3A
25
100
10
50
12
1000
75
V
V
V
IN
IN
IN
14
100
= 4V
= 8V
= 12V
3633 G02
3633 G05
3633 G08
T
J
10000
= 25°C, V
125
16
0.605
0.603
0.601
0.599
0.597
0.595
IN
100
2.6
2.4
2.2
2.0
1.8
1.6
1.4
90
80
70
60
50
40
30
20
10
0
–50
= 12V, f
–50
Effi ciency vs Load Current
Reference Voltage
vs Temperature
Oscillator Internal Set Frequency
vs Temperature
1
R
Burst Mode
OPERATION
T
–25
= INTV
–25
SW
10
CC
0
0
= 1MHz, L = 1μH unless
LOAD CURRENT (mA)
TEMPERATURE (°C)
TEMPERATURE (°C)
25
25
LTC3633
100
50
50
FORCED
CONTINUOUS
OPERATION
75
75
1000
100 125
V
V
OUT
OUT
100
= 5V
= 3.3V
3633 G09
3633 G06
3633 G03
5
3633f
10000
125
150