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Page No. : 2/8
DS-AX1509-01 Aug, 2006
www.Orister.com
Pin Connections
Absolute Maxium Rating (Note1)
Parameter
Symbol
Value
Unit
Supply Voltage
VCC
+24
V
On/Off Pin Input Voltage
VSD
-0.3~+18
V
Feedback Pin Voltage
VFB
-0.3~+18
V
Output Voltage to Ground
VOUT
-1
V
Power Dissipation
PD
Internally Limited
W
Operating Temperature
Topr
-40~+125
oC
Storage Temperature
Tstg
-65~+150
oC
Operating Voltage
VOP
+4.5~+22
V
Electrical Characteristics (Continued)
Specifications with boldface type apply over for full operating temperature range, the other type are for TJ=25
oC(Note 2)
Part No.
Parameter
Symbol
Conditions
Min.
Typ.
(Note3)
Max.
(Note4)
Unit
Output Voltage
VOUT
4.75V
≤VIN≤22V, 0.2A≤ILOAD≤2A
3.168
3.135
3.3
3.342
3.465
V
AX1509-3.3
Efficiency
η
VIN=12V, ILOAD=2A
-
73
-
%
Output Voltage
VOUT
7V
≤VIN≤22V, 0.2A≤ILOAD≤2A
4.800
4.750
5.0
5.200
5.250
V
AX1509-5.0
Efficiency
η
VIN=12V, ILOAD=2A
-
80
-
%
Output Voltage
VOUT
15V
≤VIN≤22V, 0.2A≤ILOAD≤2A
11.52
11.40
12.0
12.48
12.60
V
AX1509-12
Efficiency
η
VIN=25V, ILOAD=2A
-
90
-
%
Output Voltage
VOUT
4.5V
≤VIN≤22V, 0.2A≤ILOAD≤2A
VOUT programmed for 3V
1.213
1.200
1.25
1.287
1.300
V
AX1509-ADJ
Efficiency
η
VIN=12V, VOUT=3V, ILOAD=2A
-
73
-
%
Current
Source
Bias
1.235V
Reference
2.5V
Regulator
Start
Up
COMP
+
-
COMP
+
-
200mV
220mV
Driver
Thermal
Limit
150KHz
OSC.
COMP
+
-
AMP
+
-
Output
GND
VIN
SD
FB
R1=2.5K
R2
COMP
+
-
Current
Limit
++
R
3A
Switch
125V
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