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参数资料
| 型号： | P2576L-50-TQ5-T |
| 厂商： | UNISONIC TECHNOLOGIES CO LTD |
| 元件分类： | 稳压器 |
| 英文描述： | 6.9 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5 |
| 封装： | LEAD FREE, TO-263, 5 PIN |
| 文件页数： | 4/8页 |
| 文件大小： | 269K |
| 代理商： | P2576L-50-TQ5-T |
P2576
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
4 of 8
www.unisonic.com.tw
QW-R101-025.D
ABSOLUTE MAXIMUM RATINGS (Ta=25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNITS
Supply Voltage
VCC
40
V
Maximum Supply Voltage
VCC(MAX)
45
V
OFF
/
ON
Pin Input Voltage
VON/OFF
-0.3 ~ VIN
V
Output Voltage to Ground (Steady State)
VOUT
-1.0
V
Power Dissipation
PD
Internally Limited
mW
Junction Temperature
TJ
+150
°C
Operating Temperature
TOPR
-40 ~ +125
°C
Storage Temperature
TSTG
-65 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS (TJ=25°C, VIN=12V, ILOAD=500mA.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIN=12V, ILOAD=0.5A
4.900
5.0
5.100
V
Output Voltage
VOUT
8V≤VIN≤40V, 0.5A≤ILOAD≤3.0A
4.800
5.0
5.200
V
Efficiency
η
VIN = 12 V, ILOAD =3.0 A
77
%
ALL OUTPUT VOLTAGE
Oscillator Frequency
fOSC
(Note 4)
42
52
63
kHz
Saturation Voltage
VSAT
IOUT=3A (Note 1)
1.4
1.8
V
Max Duty Cycle (ON)
DC
(Note 2)
93
98
%
Current Limit
ILIMIT
(Note 1, 4)
4.2
5.8
6.9
A
VIN=40V, Output=-1V (Notes 3)
2
mA
Output Leakage Current
ILEAK
Output=-1V
7.5
30
mA
Quiescent Current
IQ
(Note 6)
5
10
mA
Standby Quiescent Current
ISTBY
OFF
/
ON
Pin=5V (OFF)
50
200
μA
VIH
VOUT=0V
2.2
1.4
V
ON/OFF Pin Logic Input Level
VIL
VOUT=Nominal Output Voltage
1.2
1.0
V
IIΗ
OFF
/
ON
Pin=5V (OFF)
12
30
μA
ON/OFF Pin Input Current
IIL
OFF
/
ON
Pin=5V (ON)
0
10
μA
Note: 1.
2.
3.
4.
Output pin sourcing current. No diode, inductor or capacitor connected to output.
Feedback pin removed from output and connected to 0V.
Feedback pin removed from output and connected to +12V, to force the output transistor OFF.
The oscillator frequency reduces to approximately 11 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 power dissipation of P2576 by lowering the minimum duty cycle
from 5% down to approximately 2%.
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