AP1533 Ver la hoja de datos (PDF) - Diodes Incorporated.
Número de pieza
componentes Descripción
Lista de partido
AP1533 Datasheet PDF : 9 Pages
| |||
AP1533
PWM CONTROL 1.8A STEP-DOWN CONVERTER
Electrical Characteristics
(VIN = 12V, TA = 25°C, unless otherwise specified)
Symbol
Parameter
Conditions
Min Typ.
VFB
IFB
ISHDN
Feedback Voltage
Feedback Bias Current
Current Consumption During
Power Off
IOUT = 0.1A
IOUT = 0.1A
VEN = 0V
0.784 0.8
-
0.1
-
10
∆VOUT
/ VIN
Line Regulation
VIN = 5V~23V
-
1
∆VOUT
/ VOUT
fOSC
fOSC1
Load Regulation
IOUT = 0.1 to 1.8A
Oscillation Frequency
Measure waveform at SW pin
Frequency of Current Limit or
Short Circuit Protection
Measure waveform at SW pin
-
0.2
240 300
-
50
VIH
VIL
EN Pin Input Voltage
Evaluate oscillation at SW pin
2.0
-
Evaluate oscillation stop at SW pin -
-
ISH
ISL
EN
Pin
Input
Leakage
Current
EN
EN
Pin
Pin
High
Low
-
20
-
-10
IOCSET OCSET Pin Bias Current
--
75
90
RDS(ON) Internal MOSFET RDS(ON)
VIN=5V, VFB=0V
VIN=12V, VFB=0V
-
110
-
80
EFFI Efficiency
VIN=12V, VOUT = 5V
IOUT=1.8A
-
91
TSHDN Thermal shutdown threshold
-
150
THYS Thermal shutdown hysteresis
-
55
θJA
Thermal Resistance
Junction-to-Ambient
SOP-8L (Note 3)
-
134
θJC
Thermal Resistance
Junction-to-Case
SOP-8L (Note 3)
-
22
Notes: 3. Test condition: Device mounted on FR-4 PCB, 2”x2”, 2oz copper, minimum recommended pad layout, single side.
For better thermal performance, larger copper pad for heatsink is needed.
Max Unit
0.816 V
0.5 µA
-
µA
2
%
0.5 %
400 KHz
- KHz
-
0.8
V
-
µA
-
µA
105 µA
150
110
mΩ
-
%
-
°C
-
°C
- oC/W
- oC/W
AP1533 Rev. 4
DS31192
4 of 9
www.diodes.com
JULY 2009
© Diodes Incorporated
Share Link: 