LTM4607 Datasheet, PDF (5/24 Pages) Linear Technology – 36VIN, 24VOUT High Effi ciency Buck-Boost DC/DC μModule

TYPICAL PERFORMANCE CHARACTERISTICS (Refer to Figure 18)
LTM4607
Efficiency vs Load Current
6V_IN to 12V_OUT
100
90
80
70
60
50
40
30
20
10
0
0.01
0.1
1
LOAD CURRENT (A)
BURST
DCM
CCM
10
4607 G01
Efficiency vs Load Current
12V_IN to 12V_OUT
100
90
80
70
60
50
40
30
20
10
0
0.01
0.1
1
LOAD CURRENT (A)
BURST
DCM
CCM
10
4607 G02
Efficiency vs Load Current
32V_IN to 12V_OUT
100
90
80
70
60
50
40
30
20
10
0
0.01
SKIP CYCLE
DCM
CCM
0.1
1
10
LOAD CURRENT (A)
100
4607 G03
Efficiency vs Load Current
3.3μH Inductor
100
95
90
85
80
75
70
0
5V_IN TO 5V_OUT
12V_IN TO 5V_OUT
32V_IN TO 5V_OUT
24
6
8 10 12
LOAD CURRENT (A)
4607 G04
Efficiency vs Load Current
6μH Inductor
100
99
98
97
96
95
94
93
92
91
90
0
28V_IN to 20V_OUT
32V_IN to 20V_OUT
36V_IN to 20V_OUT
2
4
6
8
LOAD CURRENT (A)
4607 G05
Efficiency vs Load Current
8μH Inductor
100
99
98
97
96
95
94
93
92
28V_IN to 24V_OUT
91
32V_IN to 24V_OUT
36V_IN to 24V_OUT
90
012 34 56 7
LOAD CURRENT (A)
4607 G06
Efficiency vs Load Current
100
Transient Response from
6V_IN to 12V_OUT
Transient Response from
12V_IN to 12V_OUT
95
90
85
80
75
70
0
I_OUT
2A/DIV
V_OUT
200mV/DIV
5V_IN to 16V_OUT
5V_IN to 20V_OUT
5V_IN to 24V_OUT
0.5 1 1.5 2 2.5 3
LOAD CURRENT (A)
4607 G06a
200μs/DIV
4607 G07
LOAD STEP: 0A TO 3A AT CCM
OUTPUT CAPS: 4x 22μF CERAMIC CAPS AND
2x 180μF ELECTROLYTIC CAPS
2x 15mΩ SENSING RESISTORS
I_OUT
2A/DIV
V_OUT
200mV/DIV
200μs/DIV
4607 G08
LOAD STEP: 0A TO 3A AT CCM
OUTPUT CAPS: 4x 22μF CERAMIC CAPS AND
2x 180μF ELECTROLYTIC CAPS
2x 15mΩ SENSING RESISTORS
4607f
5