AP1580(2007) 데이터 시트보기 (PDF) - Diodes Incorporated.
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AP1580 Datasheet PDF : 9 Pages
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AP1580
PWM CONTROL 3A STEP-DOWN CONVERTER
Absolute Maximum Ratings
Symbol
Parameter
Rating
Unit
VCC
VCC Pin Voltage
VSS - 0.3 to VSS + 45
V
VFB
VOUT Pin Voltage
VSS - 0.3 to VCC
V
VEN
EN Pin Voltage
VSS - 0.3 to VCC + 0.3
V
Vboost
Vboost Pin Voltage
VOUTPUT + 5V
V
VOUTPUT Switch Pin Voltage
Top Operating Junction Temperature Range
VSS - 0.3 to VCC + 0.3
V
-25 to +125
oC
TST
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.
Recommended Operating Conditions
Symbol
VIN
IOUT
TA
Parameter
Input Voltage
Output Current
Operating Ambient Temperature
Min
Max
Unit
10
40
V
0
3
A
-25
85
oC
Electrical Characteristics (VIN = 12V, TA=25°C, unless otherwise specified)
Symbol
Parameter
Conditions
Min. Typ. Max. Unit
VFB Feedback Voltage
VIN
Input Voltage
ISTBY Standby Current
∆VOUT/VOUT Line Regulation
VEN =0V
VIN = 10V~40V
0.780 0.8 0.820 V
10
-
40 V
-
-
2 µA
- ±1.0 ±1.5 %
∆VOUT/VOUT Load Regulation
IOUT = 0.1 to 3A
- ±0.8 ±1 %
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
-
30
- KHz
DC
VIH
VIL
ISH
ISL
RDS(ON)
ILIMIT
Maximum Duty Cycle
VFB =0.5V
Minimum Duty Cycle
VFB =1.0V
EN Pin Logic Input Threshold Regulator ON
Voltage
Regulator OFF
EN Pin Input Leakage Current
Internal MOSFET RDS(ON)
Current Limit
-
90
-
%
-
0
-
%
2.0
--
-
-
-
0.8
V
-
20
- µA
-
-10
- µA
-
80 120 mΩ
4
4.5
-
A
η
Efficiency
VIN = 12V, VOUT = 5V, IOUT = 3A -
90
-
%
θJA
Thermal Resistance
Junction-to-Ambient (Note 4)
-
149
- oC/W
θJC
Thermal Resistance
Junction-to-Case (Note 4)
-
13.4
- oC/W
Note:
3. The PCB layout copper area should be much greater than 10*10mm at the Vcc pins (5&6) of the AP1580, if you need large PD or low Tc&TA.
The dual Vcc pins (5&6) on the SOP-8L package are internally connected.
4. Devices mounted on 2oz copper, minimum recommended pad layout, FR-4 PCB.
AP1580 Rev. 1
3 of 9
www.diodes.com
JANUARY 2007
© Diodes Incorporated
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