Datenblatt-Suchmaschine für elektronische Bauteile |
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LM25018 Datenblatt(PDF) 1 Page - Texas Instruments |
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LM25018 Datenblatt(HTML) 1 Page - Texas Instruments |
1 / 31 page + + + VIN BST RON RTN SW VCC FB VIN VOUT RFB1 R R C UV1 RON COUT C C BST IN RFB2 RUV2 L1 UVLO CVCC LM25018 7.5 V - 48 V 1 2 3 4 5 6 8 7 SD Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM25018 SNVS953D – DECEMBER 2012 – REVISED DECEMBER 2014 LM25018 48-V, 325-mA Constant On-Time Synchronous Buck Regulator 1 Features 3 Description The LM25018 device is a 48-V, 325-mA synchronous 1 • Wide 7.5-V to 48-V Input Range step-down regulator with integrated high-side and • Integrated 325-mA, High-Side and low-side MOSFETs. The constant on-time (COT) Low-Side Switches control scheme employed in the LM25018 device • No Schottky Required requires no loop compensation, provides excellent transient response, and enables very high step-down • Constant On-time Control ratios. The on-time varies inversely with the input • No Loop Compensation Required voltage resulting in nearly constant frequency over • Ultra-Fast Transient Response the input voltage range. A high-voltage startup regulator provides bias power for internal operation of • Nearly Constant Operating Frequency the IC and for integrated gate drivers. • Intelligent Peak Current Limit A peak current-limit circuit protects against overload • Adjustable Output Voltage from 1.225 V conditions. The undervoltage lockout (UVLO) circuit • Precision 2% Feedback Reference allows the input undervoltage threshold and • Frequency Adjustable to 1 MHz hysteresis to be independently programmed. Other protection features include thermal shutdown and • Adjustable Undervoltage Lockout bias supply undervoltage lockout. • Remote Shutdown The LM25018 device is available in WSON-8 and SO • Thermal Shutdown Power PAD-8 plastic packages. • Packages: – WSON-8 Device Information(1) – SO PowerPAD™-8 PART NUMBER PACKAGE BODY SIZE (NOM) SO PowerPAD (8) 4.89 mm x 3.90 mm LM25018 2 Applications WSON (8) 4.00 mm x 4.00 mm • Industrial Equipment (1) For all available packages, see the orderable addendum at the end of the data sheet. • Smart Power Meters • Telecommunication Systems • Isolated Bias Supply Typical Application 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
Ähnliche Teilenummer - LM25018_15 |
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Ähnliche Beschreibung - LM25018_15 |
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