Product details

Regulated outputs (#) 2 Vin (Min) (V) 2.8 Vin (Max) (V) 5.5 Iout (Max) (A) 8 Rating Automotive Step-down DC/DC controller 0 Step-down DC/DC converter 2 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 0 Iq (Typ) (mA) 0.0067 Features Diagnostics, Dynamic Voltage Scaling, Eco-mode, Enable, Enable Pin, I2C Control, Over Current Protection, Power Good, Power Sequencing, Power Supply and System Monitoring, Spread-Spectrum Clock (SSC) Generation, Thermal Shutdown, UVLO Fixed Operating temperature range (C) -40 to 125 Processor name Jacinto 6+, TDA2+ Processor supplier Texas Instruments Shutdown current (ISD) (Typ) (uA) 1.4 Configurability Factory programmable, Software configurable
Regulated outputs (#) 2 Vin (Min) (V) 2.8 Vin (Max) (V) 5.5 Iout (Max) (A) 8 Rating Automotive Step-down DC/DC controller 0 Step-down DC/DC converter 2 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 0 Iq (Typ) (mA) 0.0067 Features Diagnostics, Dynamic Voltage Scaling, Eco-mode, Enable, Enable Pin, I2C Control, Over Current Protection, Power Good, Power Sequencing, Power Supply and System Monitoring, Spread-Spectrum Clock (SSC) Generation, Thermal Shutdown, UVLO Fixed Operating temperature range (C) -40 to 125 Processor name Jacinto 6+, TDA2+ Processor supplier Texas Instruments Shutdown current (ISD) (Typ) (uA) 1.4 Configurability Factory programmable, Software configurable
VQFN-HR (RNF) 26 18 mm² 4 x 4.5
  • 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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Technical documentation

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Type Title Date
* Data sheet LP8756x-Q1 16-A Buck Converter With Integrated Switches datasheet 29 Mar 2018
* User guide LP8756xQ1 Configuration Guide 11 Oct 2018
User guide LP87565U-Q1 Technical Reference Manual 07 Oct 2021
Application note The Benefits of FlexPower PMIC Devices (Rev. B) 23 Nov 2020
Application note How to Design Flexible Processor Power Systems Using PMICs (Rev. B) 27 Jan 2020
User guide LP87525J-Q1 Technical Reference Manual (Rev. A) 30 Oct 2019
Application note Stability Considerations for LP8756x-Q1 and LP8752x-Q1 04 Jun 2019
User guide Power Supply Design for Renesas R-Car M3 Using LP87565-Q1 and LP8732-Q1 03 May 2019
User guide LP875650-Q1 Technical Reference Manual 04 Oct 2018
User guide The LP8756xQ1EVM (SV601325) Evaluation Module (Rev. B) 13 Aug 2018
User guide LP8756x-Q1EVM (BMC031) Evaluation Module 09 Aug 2018
User guide LP87565C-Q1 Technical Reference Manual 26 Jul 2018
User guide LP87565C-Q1 and TPS65917-Q1 User’s Guide to Power DRA7xxP and TDA2Pxx (Rev. A) 20 Apr 2018

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LP87565Q1EVM — Dual Output 8 A + 8 A Buck Converters With Integrated Switches Evaluation Module

The LP87565Q1EVM demonstrates the integrated circuit LP87565-Q1 from Texas Instruments.

The LP87565-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 (...)

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Simulation model

LP87565-Q1 PSpice Transient Model

SNVMB04.ZIP (314 KB) - PSpice Model
Simulation model

LP87565-Q1 PSpice Transient Model (Rev. A)

SNVMB04A.ZIP (320 KB) - PSpice Model
Simulation model

LP8756-Q1 and LP8752-Q1 SIMPLIS Model

SNVMBU8.ZIP (42 KB) - SIMPLIS Model
Calculation tool

PEET-GUI — PMIC Efficiency Estimator Tool (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 (...)
Schematic

LP8756x and LP8752x Design Checklist

SNVR480.ZIP (116 KB)
Package Pins Download
VQFN-HR (RNF) 26 View options

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