IL2575-XX Datasheet, PDF (4/17 Pages) IK Semicon Co., Ltd – 1.0 A, 15 V, Step-Down Switching Regulator

IL2575-xx
DEVICE PARAMETERS
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, Vin = 12 V for the 3.3 V, 5.0 V, and Adjustable version, Vin = 25 V
for the 12 V version, and Vin = 30 V for the 15 V version. ILoad = 500 mA, TJ = 25°C, for min/max values TJ is the
operating junction temperature range that applies [Note 2], unless otherwise noted.)
Characteristics
ALL OUTPUT VOLTAGE VERSIONS
Feedback Bias Current (Vout = 5.0 V [Adjustable Version
Only])
T_J = 25°C
T_J = –40 to +125°C
Oscillator Frequency [Note 3]
T_J = 25°C
T_J = –40 to +125°C
Saturation Voltage (Iout = 1.0 A [Note 4])
T_J = 25°C
T_J = –40 to +125°C
Max Duty Cycle (“on”) [Note 5]
Current Limit (Peak Current [Notes 3 and 4])
T_J = 25°C
T_J = –40 to +125°C
Output Leakage Current [Notes 6 and 7], T_J = 25°C
Output = 0 V
Output = –1.0 V
Symbol
Min
I_b
–
–
f_osc
–
42
V_sat
–
–
D_C
93
I_CL
4.2
3.5
I_L
–
–
Max
100
500
–
63
1.8
2.0
–
6.9
7.5
2.0
30
Unit
nA
kHz
V
%
,A
mA
Quiescent Current [Note 6]
T_J = 25°C
T_J = –40 to +125°C
Standby Quiescent Current (ON/OFF Pin = 5.0 V (“off”))
T_J = 25°C
I_Q
–
–
Istby
–
mA
10
11
uA
200
ON/OFF Pin Logic Input Level
Vout = 0 V
T_J = 25°C
T_J = –40 to +125°C
Vout = Nominal Output Voltage
T_J = 25°C
T_J = –40 to +125°C
ON/OFF Pin Input Current
ON/OFF Pin = 5.0 V (“off”), T_J = 25°C
ON/OFF Pin = 0 V (“on”), T_J = 25°C
V
V_IH
2.2
–
2.4
–
V_IL
–
1.0
–
0.8
uA
I_IH
–
30
I_IL
–
10
3. The oscillator frequency reduces to approximately 18 kHz in the event of an output short or an overload which causes the regulated
output voltage to drop approximately 40% from the nominal output voltage. This self protection feature lowers the average dissipation of
the IC by lowering the minimum duty cycle from 5% down to approximately 2%.
4. Output (Pin 2) sourcing current. No diode, inductor or capacitor connected to output pin.
5. Feedback (Pin 4) removed from output and connected to 0 V.
6. Feedback (Pin 4) removed from output and connected to +12 V for the Adjustable, 3.3 V, and 5.0 V versions, and +25 V for the 12 V
and 15 V versions, to force the output transistor “off”.
7. Vin = 40 V.
Rev. 00