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LM26484 データシート(PDF) 1 Page - Texas Instruments |
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LM26484 データシート(HTML) 1 Page - Texas Instruments |
1 / 25 page LM26484 www.ti.com SNVS573F – SEPTEMBER 2008 – REVISED MARCH 2013 LM26484 Power Management Unit Check for Samples: LM26484 1 FEATURES APPLICATIONS 2 • Step-Down DC/DC Converter (Buck) • Digital Cores and I/Os (FPGAs, ASICs, DSPs) – 3.0–5.5V Input Range • Automotive Infotainment – Externally Adjustable VOUT: • Set-Top-Box – Bucks 1 & 2: 0.8V–3.5V @ 2A • Cordless Phone Base Station – 180° Phase Shift Between Bucks Clocks • Networking Router – 2 MHz PWM Switching Frequency • Printers – ±1% feedback Voltage Accuracy DESCRIPTION – Automatic Soft Start The LM26484 is a multi-function, configurable Power – Current Overload Protection Management Unit. This device integrates two highly – PWM/PFM efficiency Modes Available efficient 2.0A Step-Down DC/DC converters, one LDO Controller, a POR (Power On Reset) circuit, and • Linear Regulator (LDO) Controller thermal overload protection circuitry. All regulator – 3.0V–5.5V Input Range output voltages are externally adjustable. The LDO – Externally Adjustable VOUT controller is a low-voltage NMOS voltage regulator. The LM26484 is offered in a 5 x 4 x 0.8 mm WQFN- – ±1.5% Feedback Voltage Accuracy 24 pin package. – Regulated to Low VIN - Low VOUT LI-LO (Low Input Low Output) NFET Operation – Input to the LI-LO Configuration, Can Be Post Regulated When Supply is Regulated by Buck2 – Up to 1000 mA Output Current by Selection of External FET 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. |
同様の部品番号 - LM26484_13 |
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同様の説明 - LM26484_13 |
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