LP875761-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: 1.0 V
- Four High-Efficiency Step-Down DC/DC Converter Cores:
- Maximum Output Current: 16 A (4 A per Phase)
- Switching Frequency: 3 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 LP875761-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 in forced-PWM mode. The device is controlled by an I2C-compatible serial interface and by enable signals.
The LP875761-Q1 supports remote differential-voltage sensing for multiphase outputs to compensate IR drop between the regulator output and the point-of-load (POL) which improves 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 LP875761-Q1 device supports load-current measurement without the addition of external current-sense resistors. The LP875761-Q1 device also supports programmable start-up and shutdown delays and sequences synchronized to enable signals. The sequences can also include GPIO signals to control external regulators, load switches, and processor reset. During start-up, the device controls the output slew rate to minimize output-voltage overshoot and in-rush current.
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技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | LP875761-Q1 Four-Phase 3-MHz 1-V 16-A DC/DC Buck Converter With Integrated Switches datasheet | PDF | HTML | 2020年 12月 9日 |
EVM User's guide | LP875761Q1EVM Evaluation Module User's Guide | PDF | HTML | 2020年 10月 9日 | |
User guide | LP875761A-Q1 Technical Reference Manual | PDF | HTML | 2020年 9月 21日 | |
Certificate | LP875761Q1EVM EU Declaration of Conformity (DoC) | 2020年 8月 13日 | ||
Application note | Power supply design for mobileye eyeQ4 high using LP875761-Q1 | PDF | HTML | 2019年 2月 22日 |
設計與開發
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LP875761Q1EVM — LP875761-Q1 單輸出、四相降壓轉換器 EVM
The LP875761Q1EVM demonstrates the integrated circuit LP875761-Q1 from Texas Instruments.
The LP875761-Q1 is a high-performance, multiphase step-down converter designed to meet the power management requirements of the latest applications processors in automotive applications. The device contains (...)
PEET-GUI — PMIC 效率評估器工具 (PEET)
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