ap1510 Diodes, Inc., ap1510 Datasheet - Page 4

• Manufacturer Part Number: ap1510
• Description: Pwm Control 3a Step-down Converter
• Manufacturer: Diodes, Inc.

Electrical Characteristics
Notes:
Typical Application Circuit
AP1510 Rev. 5
Symbol
∆V
∆V
I
R
T
/V
I
EFFI
f
OCSET
T
f
I
SHDN
/V
I
V
OSC1
T
I
θ
V
SHDN
θ
I
OSC
V
DSON
ENH
ENL
SW
HYS
FB
OUT
SS
FB
JA
JC
OUT
OUT
IH
IL
IN
V
3. Test condition: Device mounted on FR-4 substrate 2oz copper, minimum recommended pad layout, single side.
IN
For better thermal performance, please arrange larger copper pad of layout for heatsink.
Feedback Voltage
Feedback Bias Current
Switch Current
Current Consumption During
Power Off
Line Regulation
Load Regulation
Oscillation Frequency
Frequency of Current Limit or
Short Circuit Protect
EN Pin Input Voltage
EN Pin Input Leakage Current
OCSET Pin Bias Current
Soft-Start Time
Thermal shutdown threshold
Thermal shutdown hysteresis
Internal MOSFET Rdson
Efficiency
Thermal Resistance
Junction-to-Ambient
Thermal Resistance
Junction-to-Case
470uF
C
IN
Parameter
CVcc
0.1uF
R
3.9K
OCSET
100K
C
0.1uF
R
C
Option
EN
EN
OCSET
Note: V
OCSET
Vcc
(V
I
I
--
V
V
I
Measure waveform at SW pin
Measure waveform at SW pin
Evaluate oscillation at SW pin
Evaluate oscillation stop at SW pin
V
V
V
I
SOP-8L (Note 3)
SOP-8L (Note 3)
OUT
OUT
OUT
OUT
EN
EN
IN
IN
IN
IN
R
www.diodes.com
IN
OUT
B
= 5V~23V, I
= 5V, V
=12V, V
= 12V, V
= 12V, T
AP1510
= 0.1A
= 0.1A
= 0V
= 0.1 to 3A
=0.7K~5K ohm
= 3A
= V
PWM CONTROL 3A STEP-DOWN CONVERTER
4 of 8
FB
FB
FB
V
OUT
Output
Conditions
a
x (1+R
= 0V
SS
= 25
= 0V
OUT
FB
= 5V
--
--
--
--
°C
= 0.2A
A
/R
, unless otherwise specified)
B
)
D1
22uH
Optional
L1
C
C
0.784
Min
240
3.5
2.0
0.3
10
75
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1.3K
R
6.8K
R
A
B
+
-
Typ.
300
150
110
134
-10
0.8
0.1
0.2
20
10
90
55
70
91
22
0.1uF
C
1
2
-
-
-
-
V
©
AP1510
OUT
+
-
Diodes Incorporated
MARCH 2008
=5V/3A
0.816
C
470uF
Ma.
360
105
150
100
0.5
0.5
0.8
OUT
2
5
-
-
-
-
-
-
-
-
-
-
-
o
o
Unit
kHz
kHz
mΩ
C/W
C/W
ms
µA
µA
µA
µA
µA
°C
°C
%
%
%
V
A
V