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LM21215A bảng dữ liệu(PDF) 9 Page - Texas Instruments

tên linh kiện LM21215A
Giải thích chi tiết về linh kiện  15-A Ultra High-Efficiency Synchronous Buck Converter
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LM21215A bảng dữ liệu(HTML) 9 Page - Texas Instruments

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VOUT (200 mV/Div)
VSYNC (2V/Div)
VSWITCH (2V/Div)
VOUT (50 mV/Div)
IOUT (5A/Div)
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0
20
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80 100 120
18.7
18.8
18.9
19.0
19.1
19.2
19.3
19.4
19.5
19.6
AMBIENT TEMPERATURE (°C)
JUNCTION TEMPERATURE (°C)
VSWITCH (2V/Div)
VSYNC (2V/Div)
VOUT (200 mV/Div)
-40 -20
0
20
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80 100 120
120
124
128
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JUNCTION TEMPERATURE (°C)
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JUNCTION TEMPERATURE (°C)
LOW SIDE
HIGH SIDE
LM21215A
www.ti.com
SNOSB87C – MARCH 2011 – REVISED JANUARY 2016
Typical Characteristics (continued)
Unless otherwise specified: VIN = 5 V, VOUT = 1.2 V, LF = 0.56 µH (1.8 mΩ RDCR), CSS = 33 nF, FSW = 500 kHz, TA = 25°C for
efficiency curves, loop gain plots and waveforms, and TJ = 25°C for all others.
Figure 14. MOSFET On-State Resistance vs Temperature
Figure 13. Minimum On-Time vs Temperature
Figure 16. SYNC Signal Removed, 4 µs/Div
Figure 15. Peak Current Limit vs Temperature
Figure 18. Load Transient Response, 100 µs/Div
Figure 17. SYNC Signal Acquired, 10 µs/div
Copyright © 2011–2016, Texas Instruments Incorporated
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