RT8856 데이터 시트보기 (PDF) - Richtek Technology
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RT8856 Datasheet PDF : 23 Pages
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RT8856
Typical Operating Characteristics
100
90
80
70
60
50
40
30
20
10
0
0
CCM Efficiency vs. Load Current
VIN = 8V
VIN = 12V
VIN = 19V
VID = 1.15V, RFS = 33 kΩ,
DPRSLPVR = GND, PSI = High
10
20
30
40
50
Load Current (A)
95
90
85
80
75
70
65
60
55
50
0
DEM Efficiency vs. Load Current
VIN = 8V
VIN = 12V
VIN = 19V
VID = 0.85V, RFS = 33 kΩ,
DPRSLPVR = GND, PSI = High
0.5
1
1.5
2
2.5
3
Load Current (A)
CCM VCC_SENSE vs. Load Current
0.96
0.94
0.92
0.90
0.88
VIN = 8V
VIN = 12V
VIN = 19V
0.86
0.84
0
VID = 0.9375V, RFS = 33 kΩ,
DPRSLPVR = GND, PSI = High
10
20
30
40
50
Load Current (A)
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12
100
90
80
70
60
50
40
30
20
10
0
0
CCM Efficiency vs. Load Current
VIN = 8V
VIN = 12V
VIN = 19V
VID = 0.9375V, RFS = 33 kΩ,
DPRSLPVR = GND, PSI = High
10
20
30
40
50
Load Current (A)
CCM VCC_SENSE vs. Load Current
1.16
1.14
1.12
1.1
VIN = 8V
VIN = 12V
VIN = 19V
1.08
1.06
1.04
0
VID = 1.15V, RFS = 33 kΩ,
DPRSLPVR = GND, PSI = High
10
20
30
40
50
Load Current (A)
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
VCM vs. Load Current
VIN = 8V
VIN = 12V
VIN = 19V
VID = 0.9375V, RFS = 33 kΩ,
DPRSLPVR = GND, PSI = High
10
20
30
40
50
Load Current (A)
DS8856-03 June 2011
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