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Product details

Parameters

Regulated outputs (#) 2 Vin (Min) (V) 2.8 Vin (Max) (V) 5.5 Iout (Max) (A) 8 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 Rating Automotive Processor name Jacinto 6+, TDA2+ Processor supplier Texas Instruments Shutdown current (Typ) (uA) 1.4 Configurability Factory programmable, Software configurable open-in-new Find other Multi-channel ICs (PMIC)

Package | Pins | Size

VQFN-HR (RNF) 26 18 mm² 4 x 4.5 open-in-new Find other Multi-channel ICs (PMIC)

Features

  • 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)

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Description

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

Design & development

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

Hardware development

EVALUATION BOARD Download
199
Description

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 (...)

Features
  • Software Controller
  • USB-TO-I²C interface supports 3.4 MHz clock rate on the I²C bus
  • Versatile GUI: Output current measurement and status indicators
  • Console application allows running scripts.  Application can execute user specified scripts.
  • Convenient test points for all I/O's

Design tools & simulation

SIMULATION MODEL Download
SNVMB04.ZIP (314 KB) - PSpice Model
SIMULATION MODEL Download
SNVMB04A.ZIP (320 KB) - PSpice Model
SIMULATION MODEL Download
SNVMBU8.ZIP (42 KB) - SIMPLIS Model
CALCULATION TOOL Download
Efficiency estimation tool for TPS6594-Q1, LP8756-Q1, LP8758, LP8770 and TPS650330-Q1
PEET-GUI — Efficiency estimator tool for Texas Instruments PMICs such as TPS6594-Q1, LP8756 family, LP8758 family and more.
Features
  • Efficiency data based on available measurement data
  • Automatic data plotting
  • Export efficiency curves
SCHEMATIC Download
SNVR480.ZIP (116 KB)

CAD/CAE symbols

Package Pins Download
VQFN-HR (RNF) 26 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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