ltc3602 Linear Technology Corporation, ltc3602 Datasheet - Page 5

• Manufacturer Part Number: ltc3602
• Description: 2.5a, 10v, Monolithic Synchronous Step-down Regulator
• Manufacturer: Linear Technology Corporation

TYPICAL PERFORMANCE CHARACTERISTICS
–0.10
–0.20
100
0.10
0.00
3.0
2.5
2.0
1.5
1.0
0.5
90
80
70
60
50
40
30
20
10
0
0
0.01
0.4
0
Minimum Peak Inductor Current
vs Burst Clamp Voltage
Effi ciency vs Load Current,
Forced Continuous
Load Regulation
FIGURE 6 CIRCUIT
FIGURE 6 CIRCUIT
V
V
IN
IN
= 7V
= 5V
0.5
0.5
V
BURST CLAMP VOLTAGE (V)
IN
= 9V
LOAD CURRENT (A)
LOAD CURRENT (A)
0.1
0.6
1
0.7
1.5
0.8
1
2
0.9
2.5
3602 G12
3602 G18
3602 G15
1.0
10
3
5.10
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
4.90
100
95
90
85
80
75
70
5
4
2
1
0
3
–50
4
0
Maximum Peak Inductor Current
vs Duty Cycle
Effi ciency vs Input Voltage
5V LDO Output Voltage
vs Temperature
FIGURE 6 CIRCUIT
10 20 30 40 50 60 70
–25
5
0
TEMPERATURE ( C)
INPUT VOLTAGE (V)
DUTY CYCLE (%)
6
25
I
LOAD
I
LOAD
7
50
= 2.5A
= 1A
8
75
80
100
9
3602 G16
3602 G19
90 100
3602 G13
125
10
100
1.40
1.35
1.30
1.25
1.20
1.15
1.10
100
98
96
94
92
90
88
86
84
95
90
85
80
75
70
0.01
–50
0
Effi ciency vs Load Current,
Burst Mode Operation
Effi ciency vs Frequency
TRACK/SS Current
vs Temperature
FIGURE 6 CIRCUIT
V
I
FIGURE 6 CIRCUIT
LOAD
IN
= 7V
–25
500
= 1A
1μH
0
1000
TEMPERATURE ( C)
LOAD CURRENT (A)
2.2μH
FREQUENCY (kHz)
0.1
V
IN
25
1500
= 9V
LTC3602
50
V
IN
2000
= 5V
1
75
4.7μH
2500
100
3602 G17
3602 G20
3602 G14
5
3602f
3000
125
10