LM5175EVM-HD
LM5175EVM-HD 広い Vin 4 スイッチ昇降圧コントローラ、評価モジュール
LM5175EVM-HD
概要
The LM5175EVM-HD high power density evaluation module (EVM) is a 4-switch synchronous buck-boost DC/DC regulator that employs synchronous rectification to achieve extremely high conversion efficiency in a small footprint at 72W output power. Operating over a wide input voltage range of 5.5V to 42V, the output voltage is adjustable from the nominal 12V using only a single resistor or voltage source, permitting the user to customize the output voltage from 0.8V to 24V as needed. Such user configurability is especially useful when traditional DC/DC converters cannot meet system requirements for operating input and output voltage ranges, efficiency, power density, or volume. More specifically, the LM5175EVM-HD is ideal for applications where the input voltage is expected to vary continuously above, equal to, or below the regulated output voltage setpoint in buck, buck-boost, and boost operating modes respectively.
The module design uses the LM5175 high performance, synchronous buck-boost controller with current-mode PWM control loop and adaptive slope compensation, integrated high-side and low-side MOSFET gate drivers, cycle-by cycle overcurrent protection, and precision enable. The EVM's output voltage has better than 1.5% setpoint accuracy. The switching frequency is 400kHz and is synchronizable to a higher frequency if required. Moreover, a dither function provides a smoother EMI signature for noise-sensitive applications. Input UVLO protects the module at low input voltage conditions, and it is possible to tailor the minimum operating input voltage to the application requirements by suitable adjustment of the programmable input UVLO components.
An Excel-based quick-start calculator is available, particularly for guidance with powertrain and compensation circuit component selection.
特長
- High power density: 50mm x 43mm, 6-layer PCB with 2oz copper
- Wide input voltage range of 5.5V to 42V
- Extremely high efficiency, synchronous buck/boost conversion with 98.5% peak efficiency
- Switching frequency of 400kHz with optional synchronization to external clock
- Low EMI signature with optional frequency dithering
購入と開発の開始
LM5175EVM-HD — LM5175EVM-HD 広い Vin 4 スイッチ昇降圧コントローラ、評価モジュール
LM5175EVM-HD — LM5175EVM-HD 広い Vin 4 スイッチ昇降圧コントローラ、評価モジュール
LM5175QUICKSTART-CALC — LM5175 Quick Start Calculator
サポート対象の製品とハードウェア
製品
AC/DC と DC/DC の各コントローラ (外部 FET)
ハードウェア開発
評価ボード
LM5175QUICKSTART-CALC — LM5175 Quick Start Calculator
製品
AC/DC と DC/DC の各コントローラ (外部 FET)
ハードウェア開発
評価ボード
リリース情報
設計ファイル
技術資料
| タイプ | タイトル | 最新の英語版をダウンロード | 日付 | |||
|---|---|---|---|---|---|---|
| * | EVM ユーザー ガイド (英語) | LM5175 4-Switch Buck-Boost Converter High Density EVM | 2015/03/03 | |||
| 証明書 | LM5175EVM-HD EU Declaration of Conformity (DoC) | 2019/01/02 | ||||
| データシート | LM5175、42V、広VIN 4スイッチ同期整流昇降圧コントローラ データシート (Rev. A 翻訳版) | PDF | HTML | 英語版 (Rev.A) | PDF | HTML | 2016/05/24 |