AP5002_09 Datasheet, PDF (4/10 Pages) Diodes Incorporated – PWM CONTROL 2A STEP-DOWN CONVERTER

AP5002
PWM CONTROL 2A STEP-DOWN CONVERTER
Electrical Characteristics (VIN = 12V, TA = 25°C, unless otherwise specified)
Symbol
Parameter
VFB
IFB
ICCQ
ISW
ISD
∆VOUT
/VOUT
∆VOUT
/VOUT
fOSC
VSH
VSL
ISH
ISL
TSS
Feedback Voltage
Feedback Bias Current
Quiescent Current
Switch Current
Shutdown Supply Current
Line Regulation
Load Regulation
Oscillation Frequency
EN Pin Input Voltage
EN Pin Input Leakage
Current
Soft-Start Time
RDSON Internal MOSFET Rdson
Thermal shutdown
Conditions
IOUT = 0.1A
IOUT = 0.1A
VFB = 1.2 force drive off
--
VEN = 0V
VIN = 4V~20V, IOUT = 0.2A
IOUT = 0.1 to 2A
Measure waveform at SW pin
Evaluate oscillation at SW pin
Evaluate oscillation stop at SW pin
Ven = 2V
Ven = 0.8V
--
VIN = 5V, VFB = 0V
VIN = 12V, VFB = 0V
Min
0.784
-
-
3.5
-
-
-
400
2.0
-
-10
-10
-
-
-
Minimum Duty Cycle
θJA
Thermal Resistance
Junction-to-Ambient
θJC
Thermal Resistance
Junction-to-Case
SOP-8L (Note 3)
SOP-8L (Note 3)
Notes: 3. Test condition: Device mounted on 2oz copper, minimum recommended pad layout, FR-4 PCB.
Typ.
0.8
0.1
3
-
10
1
0.5
500
-
-
-
-
3
110
70
140
6.5
124
25
Max Unit
0.816 V
0.5 µA
5 mA
-
A
- µA
2
%
1
%
600 KHz
-
0.8
V
10 µA
10 µA
- ms
150
100
mΩ
o_C
%
o_C/W
o_C/W
AP5002 Rev. 8
4 of 10
www.diodes.com
FEBRUARY 2009
© Diodes Incorporated