LM2576SX-ADJ 查看數據表（PDF） - Tiger Electronic
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LM2576SX-ADJ Datasheet PDF : 8 Pages
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LM2576 Series
Typical Performance Characteristics (Circuit of Figure 2)
Normalized Output Voltage
Line Regulation
Dropout Voltage
VIN =20V
ILOAD = 500mA
Normalized at
TJ =25°C
JUNCTION TEMPERATURE (°C)
ILOAD = 500mA
TJ =25°C
3.3V, 5V & ADJ
12V & 15V
INPUT VOLTAGE (V)
ILOA D = 3A
L1 = 150
H
ILOA D = 1A
ILOAD = 200mA
RIND = 0.1Ω
JUNCTION TEMPERATURE (°C)
Standby
Quiescent Current
VIN = 40V
VON/OFF = 5V
VIN =12 V
JUNCTION TEMPERATURE (°C)
Switch Saturation
Voltage
Quiescent Current
VOUT = 5V
Measured at
Ground Pin
TJ =25°C
ILOAD = 200mA
ILOAD = 3A
INPUT VOLTAGE (V)
Efficiency
Current Limit
VIN = 25V
JUNCTION TEMPERATURE (°C)
Oscilator Frequency
Normalized at 25°C
-55°C
25°C
150°C
SWITCH CURRENT (A)
Minimum Operating Voltage
Adjustable Version Only
VOUT ≈ 1.23V
ILOAD = 500mA
JUNCTION TEMPERATURE (°C)
ILOAD = 3A
TJ =25°C
ILOA D = 200mA
15V OUT
5V
ILOA D = 3A
ILOA D = 200mA
INPUT VOLTAGE (V)
Quiescent Current
vs Duty Cycle
Adjustable Version Only
VIN = 7V
VIN = 40V
ILOAD = 500mA
VIN = 40V
VIN = 12V
JUNCTION TEMPERATURE (°C)
Feedback Voltage
vs Duty Cycle
Adjustable Version Only
ILOAD = 500mA
VIN = 7V
VIN = 40V
DUTY CYCLE (%)
DUTY CYCLE (%)
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