RS2596 Orister Corporation, RS2596 Datasheet - Page 4

• Manufacturer Part Number: RS2596
• Description: 150khz,?3a?pwm?buck?dc/dc?converter?
• Manufacturer: Orister Corporation

All Output Voltage Versions Electrical Characteristics
Specifications with boldface type apply over for full operating temperature range, the other type are for T
(Unless otherwise specified, V
NOTE:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
ON/OFF Pin Logic Input Threshold Voltage
DS‐RS2596‐07 September, 2009
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate
conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For
guaranteed specifications and test conditions, see the Electrical Characteristics.
External components such as the catch diode, inductor, input and output capacitors, and voltage programming
resistors can affect switching regulator system performance.
Typical numbers are at 25
All limits guaranteed at room temperature (standard type face) and at temperature extremes (bold type face). All room
temperature limits are 100% production tested. All limits at temperature extremes are guaranteed via correlation using
standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level
(AOQL).
The switching frequency is reduced when the second stage current limit is activated.
No diode, inductor or capacitor connected to output pin.
Feedback pin removed from output and connected to 0V to force the output transistor switch ON.
Feedback pin removed from output and connected to 12V for the 3.3V, 5V, ADJ. version, and 15V for the 12V version,
to force the output transistor switch OFF.
V
Junction to ambient thermal resistance. (With copper area of approximately 3in
IN
Standby Quiescent Current
ON/OFF Pin Input Current
=40V.
Output Leakage Current
Feedback Bias Current
Min. Duty Cycle (OFF)
Max. Duty Cycle (ON)
Oscillator Frequency
Thermal Resistance
Saturation Voltage
Quiescent Current
Current Limit
Parameter
IN
=12V for the 3.3V, 5V, and adjustable version and V
o
C and represent the most likely norm.
(Note 10)
Symbol
V
I
DC
V
STBY
θ
θ
V
I
I
f
I
I
I
I
SAT
CL
IH
b
O
Q
IL
L
JC
JA
IH
IL
Device Parameters
ON/OFF Control
Adjustable Version Only, V
TO220‐5L
TO263‐5L
TO220‐5L
TO263‐5L
V
V
LOGIC
ON/OFF pin=5V (Note 9)
Peak Current (Note 6,7)
LOGIC
Output=0V (Note 6,8)
High (Regulator OFF)
Low (Regulator ON)
I
OUT
=2.5V (Regulator OFF)
=0.5V (Regulator ON)
Test Condition
=3A (Note 6,7)
(Note 5)
(Note 7)
(Note 8)
(Note 8)
Junction to ambient
Junction to Case
IN
=24V for the 12V version, I
FB
=1.3V
2
)
Min.
127
110
3.6
2.0
J
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
‐
=25
o
LOAD
C
Typ.
1.16
0.02
150
100
2.5
3.5
1.4
=500mA)
40
85
28
30
0
5
6
‐
‐
www.Orister.com
Max.
100
173
173
200
300
1.5
6.9
0.6
1.4
5.5
50
50
30
15
5
‐
‐
‐
‐
‐
‐
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o
o
Unit
KHz
C/W
C/W
mA
nA
uA
uA
uA
%
V
A
V