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CAT4238 データシート(PDF) 5 Page - Catalyst Semiconductor

部品番号 CAT4238
部品情報  High Efficiency 10 LED Boost Converter
PDF  14 Pages
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メーカー  CATALYST [Catalyst Semiconductor]
ホームページ  http://www.catalyst-semiconductor.com
Logo CATALYST - Catalyst Semiconductor

CAT4238 データシート(HTML) 5 Page - Catalyst Semiconductor

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CAT4238
© Catalyst Semiconductor, Inc.
5
Doc. No. MD-5019 Rev. C
Characteristics subject to change without notice
TYPICAL CHARACTERISTICS
VIN = 3.6V, CIN = 4.7μF, COUT = 0.22µF, L = 47µH with 10 LEDs at 20mA, TAMB = 25ºC, unless otherwise specified.
Quiescent Current vs. VIN (Not Switching)
50
75
100
125
150
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE [V]
VFB = 0.4V
Quiescent Current vs. VIN (Switching)
0.0
0.5
1.0
1.5
2.0
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE [V]
FB pin voltage vs. Temperature
297
298
299
300
301
302
303
-50
0
50
100
150
TEMPERATURE [ºC]
FB Pin Voltage vs. Output Current
290
295
300
305
310
5
1015202530
OUTPUT CURRENT [mA]
10 LEDs
Switching Frequency vs. Supply Voltage
Switching Waveforms
0.8
0.9
1.0
1.1
1.2
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE [V]



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