AP1515 データシートの表示（PDF） - Anachip Corporation
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AP1515 Datasheet PDF : 9 Pages
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150KHz, 1.5A PWM Buck DC/DC Converter
Typical Application Circuit (Continued)
(2) Adjustable Type Circuit
12V
DC Input
Cin
Capacitor
R2 1K
FB
3
1 AP1515
Vin
Output
2
4 56 78
SD Gnd Gnd Gnd Gnd
R1 1K
L1
39uH
Inductor
D1
Schottky
Diode
Vout = VFB × (1 + R1 )
R2
VFB = 1.23V
R2 = 1K ~ 3K
AP1515
2.5V/1.5A
Output Load
Co
Capacitor
Typical Performance Characteristics
AP1515 Output Voltage v.s. Temperature
(Vin=12V ,Io=1.5A)
3.5
3.45
3.4
3.35
3.3
3.25
3.2
3.15
3.1
3.05
3
2.95
2.9
-40 -20
0 20 40 60 80 100 120 140 160
Temperature (TA) (°C)
AP1515 Efficiency v.s. Temperature
(Vin=12V,Vout=3.3V,Io=1.5A)
82
81
80
79
78
77
76
75
74
-50 -30 -10 10 30 50 70 90 110 130 150
Temperature (TA) (°C)
Anachip Corp.
www.anachip.com.tw
Rev.1.1 Oct 24, 2005
5/9
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