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LM2576 Datasheet(PDF) 6 Page - Estek Electronics Co. Ltd

Part # LM2576
Description  Simple high-efficiency step-down (buck) regulator
Download  8 Pages
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Manufacturer  ESTEK [Estek Electronics Co. Ltd]
Direct Link  http://www.estek.com.cn/en/index.asp
Logo ESTEK - Estek Electronics Co. Ltd

LM2576 Datasheet(HTML) 6 Page - Estek Electronics Co. Ltd

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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
ILOAD = 500mA
TJ =25°C
ILOAD = 3A
L1 = 150
H
3.3V, 5V & ADJ
12V & 15V
ILOAD = 200mA
ILOAD = 1A
RIND = 0.1
Ω
JUNCTION TEMPERATURE (°C)
INPUT
VOLTAGE (V)
JUNCTION TEMPERATURE (°C)
Standby
Quiescent Current
Quiescent Current
Current Limit
VIN = 25V
VIN = 40V
VOUT = 5V
Measured at
Ground Pin
VON/OFF = 5V
TJ =25°C
VIN =12 V
ILOAD = 200mA
ILOAD = 3A
JUNCTION TEMPERATURE (°C)
INPUT
VOLTAGE (V)
JUNCTION TEMPERATURE (°C)
Switch Saturation
Voltage
Efficiency
Oscilator Frequency
Normalized at 25°C
-55°C
ILOAD = 3A
15V OUT
TJ =25°C
ILOAD = 200mA
VIN = 40V
25°C
150°C
5V
ILOAD = 3A
ILOAD = 200mA
VIN = 12V
SWITCH CURRENT (A)
INPUT
VOLTAGE (V)
JUNCTION TEMPERATURE (°C)
Minimum Operating Voltage
Quiescent Current
vs Duty Cycle
Feedback Voltage
vs Duty Cycle
Adjustable Version Only
Adjustable Version Only
VIN = 7V
Adjustable Version Only
ILOAD = 500mA
VIN = 40V
VOUT
≈1.23V
ILOAD = 500mA
ILOAD = 500mA
VIN = 40V
VIN = 7V
JUNCTION TEMPERATURE (°C)
DUTY CYCLE (%)
DUTY CYCLE (%)
6
BEIJING ESTEK ELECTRONICS CO.,LTD


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