VLCF4020-6R8 ONSEMI [ON Semiconductor], VLCF4020-6R8 Datasheet - Page 6

• Manufacturer Part Number: VLCF4020-6R8
• Description: Up to 500 mA, High Efficiency Synchronous Step-Down DC-DC Converter
• Manufacturer: ONSEMI [ON Semiconductor]

100
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
95
90
85
80
0
0
0
0
500 600
Figure 4. Efficiency vs. Output Current in PWM
V
I
T
PWM
out
A
in
Figure 6. Efficiency vs. Output Current at
= 25 C
Figure 8. Efficiency vs. Frequency at
= 3.6 V
2.7 V
= 300 mA
100
100
700
in
1.89 V
3.6 V
Different Input Voltage
800
1.5 V
out
in
FREQUENCY (kHz)
5.2 V
I
200
200
out
900
out
I
I
1.0 V
out
out
1.5 V
= 300 mA
Mode
in
(mA)
(mA)
1000
out
out
300
300
1.89 V
1100
1.3 V
1200
out
1.3 V
out
V
PWM
T
V
PWM
T
A
out
A
400
400
in
= 25 C
out
1300
= 25 C
= 3.6 V
= 1.5 V
1.0 V
http://onsemi.com
1400
out
NCP1511
500
500
1500
6
100
100
100
95
90
85
80
95
90
85
80
75
70
90
80
70
60
50
40
30
20
10
2.5
500 600
0.01
0
Figure 5. Efficiency vs. Input Voltage in PWM
V
I
T
PWM
out
Figure 9. Efficiency vs. Output Current in
A
in
= 25 C
1.5 V
= 3.6 V
= 150 mA
Figure 7. Efficiency vs. Frequency at
3.0
700
out
0.1
1.89 V
1.89 V
1.0 V
800
1.5 V
3.5
INPUT VOLTAGE (V)
FREQUENCY (kHz)
Pulsed Mode
out
out
out
I
900
out
out
1.0 V
1
1.5 V
1.3 V
I
Mode
= 150 mA
out
1000
4.0
out
out
(mA)
out
1.89 V
1100
1.3 V
10
4.5
out
1200
out
1.3 V
I
Freq = 1.0 MHz
T
out
A
= 25 C
= 150 mA
out
1.0 V
1300
V
PM
T
100
5.0
A
in
= 25 C
= 3.6 V
out
1400
1000
1500
5.5