LM26480
- Input Voltage: 2.8 V to 5.5 V
- Compatible with Advanced Applications Processors and FPGAs
- Two LDOs for Powering Internal Processor Functions and I/Os
- Precision Internal Reference
- Thermal Overload Protection
- Current Overload Protection
- External Power-On-Reset Function for Buck1 and Buck2
- Undervoltage Lockout Detector to Monitor Input Supply Voltage
- Step-Down DC-DC Converters (Buck)
- 1.5-A Output Current
- VOUT from:
- Buck1 : 0.8 V to 2 V at 1.5 A
- Buck2 : 1 V to 3.3 V at 1.5 A
- Up to 96% efficiency
- ±3% FB Voltage Accuracy
- 2-MHz PWM Switching Frequency
- PWM-to-PFM Automatic Mode Change Under Low Loads
- Automatic Soft Start
- Linear Regulators
(LDO)
- VOUT of 1 V to 3.5 V
- ±3% FB Voltage Accuracy
- 300-mA Output Current
- 25-mV (Typical) Dropout
The LM26480 is a multi-functional power management unit (PMU), optimized for low-power digital applications. This device integrates two highly efficient 1.5-A step-down DC-DC converters and two 300-mA linear regulators. The DC-DC buck converters provide typical efficiencies of 96%, allowing for minimal power consumption. Features include soft start, undervoltage lockout, current overload protection, thermal overload protection, and an internal power-on-reset (POR) circuit, which monitors the output voltage levels on bucks 1 and 2.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | LM26480 Dual 2-MHz, 1.5-A Buck Regulators and Dual 300-mA LDOs With Individual Enable and Power Good datasheet (Rev. N) | PDF | HTML | 2017/6/27 | ||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 技術文章 | Integrated power devices simplify FPGA and SoC designs | PDF | HTML | 2017/1/11 | |||
| 白皮書 | Power Management IC (PMIC) Guide for Automotive (Rev. A) | 2014/10/29 | ||||
| 應用說明 | Enhancing Bit-Flip Recovery and PMU Design For Defense/Industrial Applications | 2014/8/14 | ||||
| EVM User's guide | Eval Kit for LM26480 Dual DC/DC Buck Regulatrs w/Dual Low-Noise Linear Regulator (Rev. D) | 2013/4/18 |
設計與開發
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LM26480SQ-AAEV — LM26480SQ-AA 評估模組：可配置電源管理 IC (PMIC)，具有 2 個 DC/DC 和 2 個 LDO
The LM26480 is a multi-functional Power Management Unit, optimized for low-power digital applications. This device integrates two highly efficient 1.5A step-down DC/DC converters and two 300mA linear regulators. The LM26480 is offered in a tiny 4 x 4 x 0.8mm LLP-24 pin package.
The LM26480 (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RTW) | 24 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。