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LM1771USD 数据表(PDF) 6 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 LM1771USD
功能描述  Low-Voltage Synchronous Buck Controller with Precision Enable and No External Compensation
Download  17 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

LM1771USD 数据表(HTML) 6 Page - National Semiconductor (TI)

Back Button LM1771USD Datasheet HTML 2Page - National Semiconductor (TI) LM1771USD Datasheet HTML 3Page - National Semiconductor (TI) LM1771USD Datasheet HTML 4Page - National Semiconductor (TI) LM1771USD Datasheet HTML 5Page - National Semiconductor (TI) LM1771USD Datasheet HTML 6Page - National Semiconductor (TI) LM1771USD Datasheet HTML 7Page - National Semiconductor (TI) LM1771USD Datasheet HTML 8Page - National Semiconductor (TI) LM1771USD Datasheet HTML 9Page - National Semiconductor (TI) LM1771USD Datasheet HTML 10Page - National Semiconductor (TI) Next Button
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Typical Performance Characteristics All curves taken at VIN = 3.3V with configuration in typical
application circuit shown in Application Information section of this datasheet. T
J = 25˚C, unless otherwise
specified. (Continued)
Quiescent Current vs Temperature
Deadtime vs Temperature
20189016
20189015
Efficiency vs I
OUT (LM1771T)
(V
IN = 5V, VOUT = 1.8V, FSW = 545kHz)
Efficiency vs I
OUT (LM1771U)
(V
IN = 5V, VOUT = 2.5V, FSW = 379kHz)
20189004
20189003
Efficiency vs I
OUT (LM1771U)
(V
IN = 5V, VOUT = 3.3V, FSW = 500kHz)
Efficiency vs I
OUT (LM1771S)
(V
IN = 5V, VOUT = 1.2V, FSW = 727kHz)
20189005
20189006
www.national.com
6


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