10 Typical Performance Characteristics
Unless otherwise specified: PVIN = AVIN = 12 V, V
OUT
= 1.2 V, L = 2.2 µH, C
OUT
= 220 μF, fs = 300 kHz.
0
1
2
3
4
5
50
55
60
65
70
75
80
85
90
95
100
EF
F
IC
IEN
C
Y
(%
)
LOAD CURRENT (A)
PVIN = 12V AVIN = 5V
PVIN = AVIN = 12V
Figure 10-1. Efficiency
f
S
= 300 kHz, V
OUT
= 1.2 V, FPWM = 0
0
1
2
3
4
5
50
55
60
65
70
75
80
85
90
95
100
EF
F
IC
IEN
C
Y
(%
)
LOAD CURRENT (A)
PVIN = 12V AVIN = 5V
PVIN = AVIN = 12V
Figure 10-2. Efficiency
f
S
= 300 kHz, V
OUT
= 3.3 V, FPWM = 0
0
1
2
3
4
5
50
55
60
65
70
75
80
85
90
95
100
EF
F
IC
IEN
C
Y
(%
)
LOAD CURRENT (A)
VOUT = 3.3V
VOUT = 1.8V
VOUT = 1.2V
VOUT = 0.8V
Figure 10-3. Efficiency
f
S
= 300 kHz, AVIN = PVIN = 5 V, FPWM = 0
0
1
2
3
4
5
50
55
60
65
70
75
80
85
90
95
100
EF
F
IC
IEN
C
Y
(%
)
LOAD CURRENT (A)
VOUT = 5V
VOUT = 3.3V
VOUT = 1.8V
VOUT = 1.2V
VOUT = 0.8V
Figure 10-4. Efficiency
f
S
= 300 kHz, AVIN = PVIN = 12V, FPWM = 0
3
5
7
9
11
13
15
17
-0.10
-0.05
0.00
0.05
0.10
L
IN
E
R
EG
U
L
AT
IO
N
(%
)
INPUT VOLTAGE, PVIN (V)
Figure 10-5. Line Regulation (%)
0
1
2
3
4
5
-0.20
-0.15
-0.10
-0.05
0.00
0.05
0.10
0.15
0.20
L
O
AD
R
EG
U
L
AT
IO
N
(%
)
LOAD CURRENT (A)
Figure 10-6. Load Regulation (%)
Typical Performance Characteristics
SNVA453B – AUGUST 2011 – REVISED JANUARY 2022
LM10500 Step-Down Converter Evaluation Module User's Guide
11
Copyright © 2022 Texas Instruments Incorporated