LP87524BRNFRQ1 LP87524BRNFTQ1 电源管理 有现货 可添加我们联系方式获取最优惠价格
原厂原包原标原装每一片都来自正规渠道每一片都可追溯
描述
The LP87524B-Q1 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 4 single phase outputs. The device is controlled by an I2C-compatible serial interface and by enable signals.
The automatic PFM/PWM (AUTO mode) operation maximizes efficiency over a wide output-current range. The LP87524B-Q1 supports remote voltage sensing to compensate IR drop between the regulator output and the point-of-load (POL) thus improving the accuracy of the output voltage. In addition the switching clock can be forced to PWM mode and also synchronized to an external clock to minimize the disturbances.
The LP87524B-Q1 device supports load-current measurement without the addition of external current-sense resistors. In addition, the LP87524B-Q1 device 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 and voltage change, the device controls the output slew rate to minimize output voltage overshoot and the in-rush current.
特性
Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
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:
Total Output Current Up To 10 A
Output Voltage Slew-Rate 3.8 mV/µs
4-MHz Switching Frequency
Spread-Spectrum Mode and Phase Interleaving
Configurable General Purpose I/O (GPIOs)
I2C-Compatible Interface which 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)
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