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전자부품 반도체 검색엔진( 무료 PDF 다운로드 ) - 데이터시트뱅크

ISL97646 데이터 시트보기 (PDF) - Intersil

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ISL97646 Datasheet PDF : 15 Pages
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ISL97646
I
Typical Performance Curves
100
fOSC = 650kHz
90
80
fOSC = 1.2MHz
70
60
50
40
30
20
10
0
0
200
400
600
800 1000
IAVDD (mA)
FIGURE 1. AVDD EFFICIENCY vs IAVDD
1200
0
-0.1
-0.2
-0.3
fOSC = 650kHz
-0.4
-0.5
-0.6
fOSC = 1.2MHz
-0.7
-0.8
-0.9
0
200
400
600
800 1000 1200
IAVDD (mA)
FIGURE 2. AVDD LOAD REGULATION vs IAVDD
10.50
10.45
10.40
10.35
AVDD 150mA
AVDD 500mA
10.30
10.25
10.20
10.15
3.0 3.5
4.0
4.5
5.0
5.5
6.0
VIN (V)
FIGURE 3. LINE REGULATION AVDD vs VIN
L = 10µH, COUT = 40µF, CCOMP = 2.2nF, RCOMP = 10k
IAVDD
AVDD (AC COUPLED)
FIGURE 4. BOOST CONVERTER TRANSIENT RESPONSE
3.4
3.3V OUTPUT, 100mA
3.3
3.2
3.3V OUTPUT, 350mA
3.1
3.0
2.9
2.85V OUTPUT, 100mA
2.8
2.85V OUTPUT, 350mA
2.7
2.6
2.5V OUTPUT, 100mA
2.5
2.5V OUTPUT, 350mA
2.4 3
4
5
6
VIN (V)
FIGURE 5. LINE REGULATION LDO_OUT vs VIN
0
-0.2
-0.4
ADJ = 0
-0.6
ADJ = OPEN
ADJ = LDO_OUT
-0.8
-1.0
-1.2
0
100
200
300
400
IO (mA)
FIGURE 6. LDO LOAD REGULATION vs IO
6
FN6265.1
December 14, 2007

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