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LM3243 bảng dữ liệu(PDF) 8 Page - Texas Instruments

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tên linh kiện LM3243
Giải thích chi tiết về linh kiện  High-Current Step-Down Converter
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Trang chủ  http://www.ti.com
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LM3243 bảng dữ liệu(HTML) 8 Page - Texas Instruments

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2.5
3.0
3.5
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INPUT VOLTAGE (V)
20 s/DIV
IOUT
2V/DIV
500 mA/DIV
VCON
2V/DIV
VOUT
3.0
3.5
4.0
4.5
5.0
5.5
6.0
2.50
2.55
2.60
2.65
2.70
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3.00
INPUT VOLTAGE (V)
2.5
3.0
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INPUT VOLTAGE (V)
2.5
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INPUT VOLTAGE (V)
DROPOUT
IOUT= 1.5A
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
0.0
0.5
1.0
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VCON (V)
2.5X GAIN
LM3243
SNVS782C – OCTOBER 2010 – REVISED AUGUST 2015
www.ti.com
6.8 Typical Characteristics
VOUT = 3.4 V
VIN = 4.3 V down to Dropout
VIN = 4.2 V
RLOAD = 6.8 Ω
0.16 V < VCON < 1.4 V
Figure 1. Output Voltage vs. Supply Voltage
Figure 2. Output Voltage vs. VCON Voltage
VIN = 3.8 V
VOUT = 2.5 V
IOUT = 700 mA
2.7 V < VIN< 5.5 V (No Load)
VOUT = 1 V
Figure 3. Center-Switching Frequency vs. Supply Voltage
Figure 4. Quiescent Current (PFM) vs. Supply Voltage
VIN = 3.8 V
RLOAD = 6.8 Ω
VOUT = 0 V to 3 V
2.7 V < VIN< 5.5 V (No Load)
VOUT = 2.5 V
Figure 6. VCON Transient (3G/4G)
Figure 5. Quiescent Current (PWM) vs. Supply Voltage
8
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