LP87525-Q1
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C4B
- Input Voltage: 2.8 V to 5.5 V
- Output Voltage: 0.6 V to 3.36 V
- Four High-Efficiency
Step-Down DC/DC Converter Cores:
- Maximum Output Current: 10 A
- Switching Frequency: 2 MHz
- Spread-Spectrum Mode and Phase Interleaving
- Configurable General Purpose I/O (GPIOs)
- I2C-Compatible Interface That Supports Standard (100 kHz), Fast (400 kHz), Fast+ (1 MHz), and High-Speed (3.4 MHz) Modes
- Interrupt Function With Programmable Masking
- Programmable Power-Good Signal (PGOOD)
- Output Short-Circuit and Overload Protection
- Overtemperature Warning and Protection
- Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)
The LP8752x-Q1 device is designed to meet the power-management requirements of the latest processors and platforms in various automotive power applications. The device contains four step-down DC/DC converter cores, which are configured as a 4-phase output, 3-phase and 1-phase outputs, 2-phase and 2-phase outputs, one 2-phase and two 1-phase outputs, or four 1-phase outputs. The device is controlled by an I2C-compatible serial interface and by enable signals.
The automatic pulse-width-modulation (PWM) to pulsed-frequency-modulation (PFM) operation (AUTO mode), together with the automatic phase adding and phase shedding, maximizes efficiency over a wide output-current range. The LP8752x-Q1 supports remote differential-voltage sensing for multiphase outputs to compensate IR drop between the regulator output and the point-of-load (POL) improving the accuracy of the output voltage. The switching clock can be forced to PWM mode and also synchronized to an external clock to minimize the disturbances.
The LP8752x-Q1 device supports load-current measurement without the addition of external current-sense resistors. The device also supports programmable start-up and shutdown delays and sequences synchronized to enable signals. The sequences can include GPIO signals to control external regulators, load switches, and processor reset. During start-up and voltage change, the device controls the output slew rate to minimize output-voltage overshoot and in-rush current.
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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 | LP8752x-Q1 10-A Buck Converter With Integrated Switches datasheet | PDF | HTML | 2018/3/15 | ||
| * | 使用指南 | LP8752B-Q1 Technical Reference Manual | PDF | HTML | 2020/2/3 | ||
| 使用指南 | LP8752x-Q1 Configuration Guide (Rev. A) | PDF | HTML | 2025/7/30 | |||
| 使用指南 | Power Supply Design for Renesas R-Car M3 (Rev. A) | 2021/10/29 | ||||
| Application brief | The Benefits of FlexPower PMIC Devices (Rev. B) | PDF | HTML | 2020/11/23 | |||
| 應用說明 | Stability Considerations for LP8756x-Q1 and LP8752x-Q1 | PDF | HTML | 2019/6/4 |
設計與開發
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LP87565Q1EVM — 具有整合式開關的二輸出 8 A + 8 A 降壓轉換器評估模組
LP87565Q1EVM 展示了德州儀器的積體電路 LP87565-Q1。
LP87565-Q1 為一高性能，多相降壓式轉換器，設計用途可滿足汽車應用中最新應用處理器的電源管理需求。裝置包含四個降壓式 DC-DC 轉換器核心，可配置為兩個雙相降壓轉換器。LP87565-Q1 可驅動高達 8A + 8A 負載電流，並完美結合解決方案尺寸與效率。此裝置可透過 PC 及隨附的 GUI 控制。
此 EVM 可編程，以匹配 LP87565 或 LP87525 系列的任何配置。
PEET-GUI — PMIC 效率評估器工具 (PEET)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN-HR (RNF) | 26 | Ultra Librarian |