Diodes AP5004 - Manual (Page 4)

AP5004
PWM CONTROL 2.5A STEP-DOWN CONVERTER
AP5004
Document number: DS31444 Rev. 5 - 2
4 of 11
www.diodes.com
August 2010
© Diodes Incorporated
Electrical Characteristics (V
IN
= 12V, T
A
=25°C, unless otherwise specified)
Symbol Parameter Conditions Min Typ. Max Unit
V
FB
Feedback Voltage 0.780 0.8 0.820 V
V
IN
Input Voltage 10 - 32 V
I
STBY
Standby Current V
EN
=0V - 2 - µA
∆V
OUT
/V
OUT
Line Regulation V
IN
= 10V~32V - ±1.0 ±1.5 %/V
∆V
OUT
/V
OUT
Load Regulation I
OUT
= 0.1 to 2.5A - 1 1.5 %
f
OSC
Oscillation Frequency Measure waveform at SW pin 240 300 360 KHz
f
OSC1
Frequency of Current Limit or
Short Circuit Protect
Measure waveform at SW pin - 50 - KHz
DC
Maximum Duty Cycle V
FB
=0.5V - 90 - %
Minimum Duty Cycle V
FB
=1.0V - 0 - %
V
IH
EN Pin Logic Input Threshold
Voltage Regulator ON 2.0 - -
V
V
IL
Regulator OFF - - 0.8
I
SH
EN Pin Input Leakage Current
- 20 - µA
I
SL
- -10 - µA
R
DS(ON)
Internal MOSFET R
DS(ON)
- 80 120 m Ω
I
LIMIT
Current Limit 3.5 - - A
η
Efficiency V
IN
= 12V, V
OUT
= 5V, I
OUT
= 2.5A - 90 - %
θ
JA
Thermal Resistance Junction-
to-Ambient
SOP-8L (Note 3) - 124 -
o
C/W
θ
JC
Thermal Resistance Junction-
to-Case
SOP-8L (Note 3) - 25 -
o
C/W
Notes: 3. Test condition for SOP-8L: Device mounted on 2oz copper, minimum recommended pad layout, FR-4 PCB.