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AP1520 データシート(PDF) 3 Page - Diodes Incorporated

部品番号 AP1520
部品情報  PWM CONTROL 2A STEP-DOWN CONVERTER
PDF  8 Pages
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メーカー  DIODES [Diodes Incorporated]
ホームページ  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP1520 データシート(HTML) 3 Page - Diodes Incorporated

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AP1520
PWM CONTROL 2A STEP-DOWN CONVERTER
AP1520 Rev. 1
3 of 8
JANUARY 2007
www.diodes.com
© Diodes Incorporated
Absolute Maximum Ratings
Symbol
Parameter
Rating
Unit
VCC
VCC Pin Voltage
VSS - 0.3 to VSS + 25
V
VFB
Feedback Pin Voltage
VSS - 0.3 to VCC
V
VEN
EN Pin Voltage
VSS - 0.3 to VIN + 0.3
V
VOUT
Switch Pin Voltage
VSS - 0.3 to VIN + 0.3
V
PD
Power Dissipation
Internally limited
mW
TOPR
Operating Temperature Range
-20 to +85
oC
TSTG
Storage Temperature Range
-40 to +150
oC
Caution: The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must
therefore not be exceeded under any conditions.
Electrical Characteristics ( VIN = 12V, Ta = 25°C, unless otherwise specified )
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
VIN
Input Voltage
--
3.6
-
23
V
VFB
Feedback Voltage
IOUT = 0.1A
0.784
0.8
0.816
V
IFB
Feedback Bias Current
IOUT = 0.1A
-
0.1
0.5
µA
ISW
Switch Current
--
2.5
-
-
A
ISSS
Current Consumption
During Power off
VEN = 0V
-
10
-
µA
∆VOUT
/VOUT
Line Regulation
VIN = 5V~23V
-
1
2
%
∆VOUT
/VOUT
Load Regulation
IOUT = 0.1 to 2A
-
0.2
0.5
%
fOSC
Oscillation Frequency
Measure waveform at SW pin
240
300
360
KHz
fOSC1
Frequency of Current Limit
or Short Circuit Protect
Measure waveform at SW pin
10
-
-
KHz
VSH
Evaluate oscillation at SW pin
2.0
-
-
VSL
EN Pin Input Voltage
Evaluate oscillation stop at SW pin
-
-
0.8
V
ISH
--
-
20
-
µA
ISL
EN Pin Input Leakage
Current
--
-
-10
-
µA
IOCSET OCSET Pin Bias Current
--
75
90
105
µA
TSS
Soft-Start Time
--
0.3
1
2
ms
VIN = 5V, VFB = 0V
-
110
150
RDSON Internal MOSFET RDSON
VIN = 12V, VFB = 0V
-
70
100
mΩ
EFFI
Efficiency
VIN = 12V, VOUT = 5V
IOUT = 2A
-
92
-
%
θJA
Thermal Resistance
Junction-to-Ambient
-
65
-
oC/W



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