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LM26480 数据表(PDF) 1 Page - Texas Instruments |
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LM26480 数据表(HTML) 1 Page - Texas Instruments |
1 / 37 page LM26480 www.ti.com SNVS543I – JANUARY 2008 – REVISED MAY 2013 LM26480 Externally Programmable Dual High-Current Step-Down DC/DC and Dual Linear Regulators Check for Samples: LM26480 1 FEATURES DESCRIPTION The LM26480 is a multi-functional Power 2 • Compatible with Advanced Applications Management Unit, optimized for low-power digital Processors and FPGAs applications. This device integrates two highly • 2 LDOs for Powering Internal Processor efficient 1.5A step-down DC/DC converters and two Functions and I/Os 300 mA linear regulators. The LM26480 is offered in a tiny 4 x 4 x 0.8mm WQFN-24 pin package. • Precision Internal Reference • Thermal Overload Protection KEY SPECIFICATIONS • Current Overload Protection • Step-Down DC/DC Converter (Buck) • 24-lead 4 × 4 × 0.8mm WQFN Package – 1.5A output current • External Power-On-Reset Function for Buck1 – VOUT from: and Buck2 – Buck1 : 0.8V–2.0V @ 1.5A • Undervoltage Lock-Out Detector to Monitor Input Supply Voltage – Buck2 : 1.0V–3.3V @ 1.5A • Note: LM26480Q is an Automotive-Grade – Up to 96% efficiency Product that is AECQ-100 Grade 1 Qualified. – ±3% FB voltage accuracy – 2 MHz PWM switching frequency APPLICATIONS – PWM - PFM automatic mode change under • Core Digital Power low loads • Applications Processors – Automatic soft start • Peripheral I/O Power • Linear Regulators (LDO) – VOUT of 1.0V–3.5V – ±3% FB voltage accuracy – 300 mA output current – 25 mV (typ) dropout 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2008–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
类似零件编号 - LM26480 |
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类似说明 - LM26480 |
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