IL2596-xx
Electrical Characteristics
Unless otherwise specified, TJ = 25 oC VIN = 12V for the 3.3V, 5V, and Adjustable version and VIN =
24V for the 12V version. ILOAD = 500mA.
Characteristic
Symbol
Test Condition
Min
Typ
Max
Unit
Output Voltage
VOUT
IL2596–3
3.168
3.3
3.432
4.75V ≤ VIN ≤ 40V,
0.2A ≤ ILOAD ≤ 3A
IL2596–5
4.8
5.0
5.2
V
7V ≤ VIN ≤ 40V,
0.2A ≤ ILOAD ≤ 3A
IL2596–12
11.52
12.0
12.48
15V ≤ VIN ≤ 40V,
0.2A ≤ ILOAD ≤ 3A
Efficiency
IL2596–3
IL2596–5
IL2596–12
IL2596–A
ILOAD = 3A
ILOAD = 3A
73
80
90
73
%
η
VIN = 25V, ILOAD = 3A
VOUT = 3V, ILOAD = 3A
%
V
Feedback Voltage
VFB
IL2596–A
1.193
110
1.230
1.267
4.5V ≤ VIN ≤ 40V,
0.2A ≤ ILOAD ≤ 3A
VOUT programmed for
3V
Feedback Bias
Current
ID
fO
IL2596-A; VFB = 1.3V
15
50
nA
Oscillator Frequency
150
173
kHz
Saturation Voltage
VSAT
DC
IOUT = 3A
(Note 1,2)
(Note 2)
1.16
1.4
V
Max Duty Cycle
(ON)
100
0
%
Max Duty Cycle
(OFF)
(Note 3)
Current Limit
ICL
Peak Current
(Note 1,2)
3.4
4.5
6.0
50
A
Output Leakage
Current
IL
Output = 0V
(Note 1,3)
µA
Output = -1V, VIN = 40V
(Note 3)
2
5
30
10
mA
mA
Quiescent Current
IQ
Standby Quiescent
Current
ISTBY
ON/OFF pin = 5V (OFF), VIN = 40V
Low (Regulator ON)
100
1.3
200
0.6
µA
ON/OFF Pin Logic
Input
VIH
2.0
V
Threshold Voltage
ON/OFF Pin Input
Current
VIL
IH
High (Regulator OFF)
VLOGIC = 2.5V (regulator OFF)
VLOGIC = 0.5V (regulator ON)
5
15
5
µA
IL
0.02
Note 1: No elements connected to output pin.
Note 2: Feedback pin removed from output and connected to 0V to force the output transistor switch ON.
Note 3: Feedback pin removed from output and connected to 12V for the 3.3V, 5V, and the A version, and
15V for the 12V version. To force the output transistor switch OFF.
3
Rev. 03
IKSEMICON [ IK SEMICON CO., LTD ]
