The LM25576 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 - 42V, the LM25576 delivers 3A
of continuous output current with an integrated 170mΩ 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 1MHz 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 LM25576 guarantees robustness with cycle-by-cycle
current limit, short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a power enhanced
TSSOP-20 package featuring an exposed die attach pad for thermal dissipation. The LM25576 is supported by the full suite of
WEBENCH On-Line design tools.
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Date |
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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-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-1579: Application Note 1579 LM25576 Evaluation Board |
157 Kbytes |
18-Mar-07 |
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AN-1579 (Japanese): Application Note 1579 LM25576 Evaluation Board
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190 Kbytes |
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AN-1579 (Chinese): Application Note 1579 LM25576 Evaluation Board
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245 Kbytes |
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| AN-1578: Application Note 1578 LM25575 Evaluation Board |
157 Kbytes |
18-Mar-07 |
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AN-1578 (Japanese): Application Note 1578 LM25575 Evaluation Board
|
188 Kbytes |
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AN-1578 (Chinese): Application Note 1578 LM25575 Evaluation Board
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242 Kbytes |
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| AN-1577: Application Note 1577 LM25574 Evaluation Board |
153 Kbytes |
18-Mar-07 |
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AN-1577 (Japanese): Application Note 1577 LM25574 Evaluation Board
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174 Kbytes |
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AN-1577 (Chinese): Application Note 1577 LM25574 Evaluation Board
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241 Kbytes |
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