The LM5574 is an easy to use SIMPLE SWITCHER® buck regulator which allows design engineers to design and optimize a robust
power supply using a minimum set of components. Operating with an input voltage range of 6 - 75V, the LM5574 delivers 0.5A
of continuous output current with an integrated 750mΩ N-Channel MOSFET. The regulator utilizes an Emulated Current Mode architecture
which provides inherent line regulation, tight load transient response, and ease of loop compensation without the usual limitation
of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50kHz to 500kHz to
allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple IC’s from the LM(2)557x
family to self-synchronize or to synchronize to an external clock. The LM5574 guarantees robustness with cycle-by-cycle current
limit, short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a TSSOP-16 package. The
LM5574 is supported by the full suite of WEBENCH On-Line design tools.
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| AN-1566: Application Note 1566 Techniques for Thermal Analysis of Switching Power Supply Designs |
370 Kbytes |
7-Feb-07 |
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AN-1566 (Japanese): Application Note 1566 Techniques for Thermal Analysis of Switching Power Supply Designs
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442 Kbytes |
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AN-1566 (Chinese): Application Note 1566 Techniques for Thermal Analysis of Switching Power Supply Designs
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282 Kbytes |
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| AN-1571: Application Note 1571 Quick Start Guide for a 1.5 Amp Buck Regulator Using the LM5575 and LM25575 |
91 Kbytes |
18-Mar-07 |
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AN-1571 (Japanese): Application Note 1571 Quick Start Guide for a 1.5 Amp Buck Regulator Using the LM5575 and LM25575
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143 Kbytes |
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AN-1571 (Chinese): Application Note 1571 Quick Start Guide for a 1.5 Amp Buck Regulator Using the LM5575 and LM25575
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222 Kbytes |
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| AN-1563: Application Note 1563 Quick Start Guide for a 0.5 Amp Buck Regulator Using The LM5574 and LM25574 |
89 Kbytes |
17-Mar-07 |
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AN-1563 (Japanese): Application Note 1563 Quick Start Guide for a 0.5 Amp Buck Regulator Using The LM5574 and LM25574
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135 Kbytes |
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AN-1563 (Chinese): Application Note 1563 Quick Start Guide for a 0.5 Amp Buck Regulator Using The LM5574 and LM25574
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263 Kbytes |
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| AN-1574: Application Note 1574 LM5073 Evaluation Board |
464 Kbytes |
24-Apr-07 |
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| AN-1572: Application Note 1572 Quick Start Guide for a 3 Amp Buck Regulator Using the LM5576 and LM25576 |
91 Kbytes |
18-Mar-07 |
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AN-1572 (Japanese): Application Note 1572 Quick Start Guide for a 3 Amp Buck Regulator Using the LM5576 and LM25576
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144 Kbytes |
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AN-1572 (Chinese): Application Note 1572 Quick Start Guide for a 3 Amp Buck Regulator Using the LM5576 and LM25576
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224 Kbytes |
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| AN-1570: Application Note 1570 LM5576 Evaluation Board |
160 Kbytes |
18-Mar-07 |
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AN-1570 (Japanese): Application Note 1570 LM5576 Evaluation Board
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259 Kbytes |
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AN-1570 (Chinese): Application Note 1570 LM5576 Evaluation Board
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242 Kbytes |
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| AN-1569: Application Note 1569 LM5575 Evaluation Board |
158 Kbytes |
18-Mar-07 |
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AN-1569 (Japanese): Application Note 1569 LM5575 Evaluation Board
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190 Kbytes |
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AN-1569 (Chinese): Application Note 1569 LM5575 Evaluation Board
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241 Kbytes |
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| AN-1568: Application Note 1568 LM5574 Evaluation Board |
428 Kbytes |
18-Mar-07 |
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AN-1568 (Japanese): Application Note 1568 LM5574 Evaluation Board
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233 Kbytes |
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AN-1568 (Chinese): Application Note 1568 LM5574 Evaluation Board
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279 Kbytes |
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