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LP87563-Q1

現行

具有整合式開關的車用多相 8A + 4A + 4A 降壓轉換器

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產品規格表
使用指南

LP87563-Q1

現行
產品規格表 立即訂購

產品詳細資料

Regulated outputs (#) 3 Configurability Factory programmable, Software configurable Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.6 Vout (max) (V) 3.36 Iout (max) (A) 8 Features Dynamic voltage scaling, Enable, Enable pin, I2C control, Overcurrent protection, Power good, Power sequencing, Power supply and system monitoring, Spread-Spectrum Clock (SSC) Generation, Thermal shutdown, UVLO fixed Step-up DC/DC converter 0 Step-down DC/DC converter 3 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 0 Iq (typ) (mA) 0.0067 Rating Automotive Switching frequency (max) (kHz) 2200 Operating temperature range (°C) -40 to 125 Processor supplier Generic Processor name Generic Shutdown current (ISD) (typ) (µA) 1.4 Switching frequency (typ) (kHz) 2000 Product type Processor and FPGA
Regulated outputs (#) 3 Configurability Factory programmable, Software configurable Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.6 Vout (max) (V) 3.36 Iout (max) (A) 8 Features Dynamic voltage scaling, Enable, Enable pin, I2C control, Overcurrent protection, Power good, Power sequencing, Power supply and system monitoring, Spread-Spectrum Clock (SSC) Generation, Thermal shutdown, UVLO fixed Step-up DC/DC converter 0 Step-down DC/DC converter 3 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 0 Iq (typ) (mA) 0.0067 Rating Automotive Switching frequency (max) (kHz) 2200 Operating temperature range (°C) -40 to 125 Processor supplier Generic Processor name Generic Shutdown current (ISD) (typ) (µA) 1.4 Switching frequency (typ) (kHz) 2000 Product type Processor and FPGA
VQFN-HR (RNF) 26 18 mm² 4.5 x 4
  • 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: 16 A (4 A per Phase)
    • Programmable Output Voltage Slew-Rate: 0.5 mV/µs to 10 mV/µs
  • 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)
  • 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: 16 A (4 A per Phase)
    • Programmable Output Voltage Slew-Rate: 0.5 mV/µs to 10 mV/µs
  • 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 LP8756x-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 LP8756x-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 LP8756x-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.

The LP8756x-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 LP8756x-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 LP8756x-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

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類型 標題 日期
* Data sheet LP8756x-Q1 16-A Buck Converter With Integrated Switches datasheet PDF | HTML 2018年 3月 29日
* User guide LP8756xQ1 Configuration Guide 2018年 10月 11日
* EVM User's guide The LP8756xQ1EVM (SV601325) Evaluation Module (Rev. B) 2018年 8月 13日
Application brief The Benefits of FlexPower PMIC Devices (Rev. B) PDF | HTML 2020年 11月 23日
Application note How to Design Flexible Processor Power Systems Using PMICs (Rev. B) 2020年 1月 27日
Application note Stability Considerations for LP8756x-Q1 and LP8752x-Q1 PDF | HTML 2019年 6月 4日
User guide LP875630-Q1 Technical Reference Manual 2018年 10月 4日
EVM User's guide LP8756x-Q1EVM (BMC031) Evaluation Module 2018年 8月 9日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

LP87563Q1EVM — 具有整合式開關的三輸出 8-A + 4-A + 4-A 降壓轉換器評估模組

The LP87563Q1EVM demonstrates the integrated circuit LP87563-Q1 from Texas Instruments.

The LP87563-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 four (...)

使用指南: PDF
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模擬型號

LP8756-Q1 and LP8752-Q1 SIMPLIS Model

SNVMBU8.ZIP (42 KB) - SIMPLIS Model
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模擬型號

LP87563-Q1 PSpice Transient Model

SNVMAZ5.ZIP (329 KB) - PSpice Model
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模擬型號

LP87563-Q1 PSpice Transient Model (Rev. A)

SNVMAZ5A.ZIP (342 KB) - PSpice Model
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計算工具

PEET-GUI — PMIC 效率評估器工具 (PEET)

The PMIC Efficiency Estimator Tool (PEET GUI) is a graphical user interface used to easily evaluate PMIC DC/DC regulator efficiency relative to your design conditions. The PEET GUI can be used to configure each DC/DC regulator separately and provides real-time efficiency and power dissipation data (...)
在雲端評估
配置圖

LP8756x and LP8752x Design Checklist

SNVR480.ZIP (116 KB)
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參考設計

PMP30819 — 具三個輸出且使用 PMIC 和 LDO 的車用電源供應器參考設計

此多重輸出電源可經由多通道 IC (PMIC) LP87653-Q1 從 5-V 輸入電壓為客製化 ASIC 供電。儘管此 PMIC 具有四軌，但第三相仍未使用，且 1.1 VA (其中 A 等於類比的敏感負載) 是根據客戶需求透過低壓差穩壓器 (LDO) 所產生。用於 2.5 VA 和 1.1 VA 的低壓差線性穩壓器是 TPS745-Q1。兩個低壓差線性穩壓器皆以 3.3 V 供電，以降低低壓差線性穩壓器 1.1 VA 的損耗，並在輸入中新增兩個功率電阻。
Test report: PDF
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