Page No. : 2/2
Pin Connections
SD
VIN
+
+
Current
Source
Bias
1.235V
Reference
2.5V
Regulator
Start
Up
200mV
220mV
R
+
COMP
-
Current
Limit
-
FB
COMP
+
-
+
R2
AMP
-
3A
Switch
COMP
Driver
+
+
Output
GND
R1=2.5K
150KHz
OSC.
Thermal
Limit
COMP
-
(Note1)
Absolute Maxium Rating
Parameter
Supply Voltage
Symbol
VCC
VSD
VFB
Value
40
Unit
V
On/Off Pin Input Voltage
Feedback Pin Voltage
Output Voltage to Ground
Power Dissipation
-0.3~+25
-0.3~+25
-1
V
V
VOUT
PD
V
Internally Limited
0~+70
W
oC
oC
oC
V
Operating Temperature
Storage Temperature
Topr
Tstg
-65~+150
-40~+125
+4.5~+40
Operating Junction Temperature Range
Operating Voltage
TJ
VOP
Electrical Characteristics (Continued)
Specifications with boldface type apply over for full operating temperature range, the other type are for TJ=25oC(Note 2)
Typ.
(Note3) (Note4)
Max.
Part No.
Parameter
Symbol
Conditions
Min.
Unit
3.168
3.135
3.342
3.3
Output Voltage
Efficiency
VOUT
η
V
%
V
4.75V≤VIN≤40V, 0.2A≤ILOAD≤2A
VIN=12V, ILOAD=2A
3.465
RS1509-3.3
-
73
5.0
80
-
4.800
4.750
5.200
5.250
Output Voltage
Efficiency
VOUT
η
7V≤VIN≤40V, 0.2A≤ILOAD≤2A
VIN=12V, ILOAD=2A
RS1509-5.0
RS1509-12
RS1509-ADJ
-
-
%
V
11.52
11.40
12.48
12.60
Output Voltage
Efficiency
VOUT
η
12.0
90
15V≤VIN≤40V, 0.2A≤ILOAD≤2A
VIN=25V, ILOAD=2A
-
1.193
-
-
%
V
1.267
1.280
4.5V≤VIN≤40V, 0.2A≤ILOAD≤2A
Reference Voltage
Efficiency
VFB
η
1.23
77
VOUT programmed for 3V
VIN=12V, VOUT=3V, ILOAD=2A
-
%
DS-RS1509-04 Oct, 2007
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ORISTER [ ORISTER CORPORATION ]
