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SP6651AEU-L/TR

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
4
Date: 5/25/04 SP6651A High Efficiency 800mA Synchronous Buck Regulator © Copyright 2004 Sipex Corporation
60
65
70
75
80
85
90
95
100
0.1 1.0 10.0 100.0 1000.0
ILoad (mA)
Efficiency (%)
Vi=3.6V
Vi=3.9V
Vi=4.2V
Vi=5.0V
3.20
3.25
3.30
3.35
3.40
0 200 400 600 800 1000
ILoad (mA)
Vout (V)
Vi=3.6V
Vi=3.9V
Vi=4.2V
Vi=5.0V
0
100
200
300
400
500
3.0 3.3 3.6 3.9 4.2
Vin (V)
Iin (uA)
Tamb = 85°C
Tamb = 25°C
Tamb = -40°C
1.45
1.47
1.49
1.51
1.53
1.55
0 200 400 600 800 1000
ILoad (mA)
Vout (V)
Vi=3.6V
Vi=3.9V
Vi=4.2V
Vi=5.0V
0
10
20
30
40
50
3.0 3.3 3.6 3.9 4.2
Vin (V)
Iin (µA)
Tamb = 85°C
Tamb = 25°C
Tamb = -40°C
100
1.0 10.0 100.0 1000.0
ILoad (mA)
Efficiency (%)
95
90
85
80
75
70
65
60
0.
Vi=3.6V
Vi=3.9V
Vi=4.2V
Vi=5.0V
Figure 1. Efficiency vs Load, V
OUT
= 3.3V
Figure 2. Efficiency vs Load, V
OUT
= 1.5V
Figure 3. Line/Load Rejection, V
OUT
= 3.3V
Figure 4. Line/Load Rejection, V
OUT
= 1.5V
Figure 5. No Load Battery Current, V
OUT
=3.3V
Figure 6. No Load Battery Current, V
OUT
=1.5V
TYPICAL PERFORMANCE CHARACTERISTICS
Refer to the typical application schematic, T
AMB
= +27°C
5
Date: 5/25/04 SP6651A High Efficiency 800mA Synchronous Buck Regulator © Copyright 2004 Sipex Corporation
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
3.6 3.9 4.2 4.5 4.8 5.1 5.4
Vin (V)
Kon (V*usec)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
3.0 3.3 3.6 3.9 4.2 4.5 4.8 5.1 5.4
Vin (V)
Kon (V*usec)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
3.6 3.9 4.2 4.5 4.8 5.1 5.4
Vin (V)
Koff (V*usec)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
3.0 3.3 3.6 3.9 4.2 4.5 4.8 5.1 5.4
Vin (V)
Koff (V*usec)
Figure 7. K
ON
vs V
IN
, V
OUT
=3.3V Figure 8. K
ON
vs V
IN
, V
OUT
=1.5V
Figure 9. K
OFF
vs V
IN
, V
OUT
=3.3V
Figure 10. K
OFF
vs V
IN
, V
OUT
=1.5V
TYPICAL PERFORMANCE CHARACTERISTICS: Continued
Refer to the typical application schematic, T
AMB
= +27°C
0.0
100.0
200.0
300.0
400.0
500.0
600.0
700.0
3.5 4.0 4.5 5.0
Vin (V)
Frequency (KHz)
Vout = 3.3V
Measured
Vout = 3.3V
Calculated
0.0
100.0
200.0
300.0
400.0
500.0
600.0
700.0
3.4 3.8 4.2 4.6 5.0
Vin (V)
Frequency (KHz)
Vout = 1.5V
Measured
Vout = 1.5V
Calculated
Figure 11. Ripple Frequency vs. V
IN
, I
OUT
=600mA,
V
OUT
=3.3V
Figure 12. Ripple Frequency vs. V
IN
, I
OUT
=600mA,
V
OUT
=1.5V
6
Date: 5/25/04 SP6651A High Efficiency 800mA Synchronous Buck Regulator © Copyright 2004 Sipex Corporation
CH.2=V
OUT
50mV/div. AC
CH.4=I
OUT
0.5A/div
CH.2=V
OUT
50mV/div. AC
CH.4=I
IN
0.5A/div
CH.1=V
SHDN
10V/div.
CH.2=V
OUT
1V/div. AC
CH.4=ILx
0.5A/div
CH.1=V
SHDN
10V/div.
CH.2=V
OUT
2V/div. AC
CH.4=ILx
0.5A/div
Figure 15. Load Step, I
OUT
=0.4A to 0.8A, V
OUT
=3.3V
Figure 16. Load Step, I
OUT
=0.4A to 0.8A, V
OUT
=1.5V
Figure 17. Start up from SHDN, I
OUT
=0.6A, V
OUT
=3.3V
Figure 18. Start up from SHDN, I
OUT
=0.6A, V
OUT
=1.5V
TYPICAL PERFORMANCE CHARACTERISTICS: Continued
Refer to the typical application schematic, T
AMB
= +27°C
CH.1=V
IN
2.5V/div
CH.2=V
OUT
2.0V/div
CH.4=I
IN
0.5A/div
CH.1=V
IN
2.5V/div
CH.2=V
OUT
5.0V/div
CH.4=I
IN
0.5A/div
Figure 13. V
IN
Start up, I
OUT
=0.6A, V
OUT
=3.3V
Figure 14. V
IN
Start up, I
OUT
=0.6A, V
OUT
=1.5V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

SP6651AEU-L/TR

Mfr. #:
Buy SP6651AEU-L/TR
Manufacturer:
MaxLinear
Description:
Switching Controllers High Eff 800mA Synchronous
Lifecycle:
New from this manufacturer.
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