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Product details

Parameters

Regulated outputs (#) 1 Vin (Min) (V) 2.8 Vin (Max) (V) 5.5 Iout (Max) (A) 16 Step-down DC/DC controller 0 Step-down DC/DC converter 1 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 0 Iq (Typ) (mA) 0.0067 Features Dynamic Voltage Scaling, Enable, Enable Pin, I2C Control, Over Current Protection, Power Good, Power Sequencing, Power Supply and System Monitoring, Spread-Spectrum Clock (SSC) Generation, Synchronous Rectification, Thermal Shutdown, UVLO Fixed Operating temperature range (C) -40 to 125 Rating Automotive 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 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

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 13
Type Title Date
* Datasheet LP8756x-Q1 16-A Buck Converter With Integrated Switches datasheet Mar. 29, 2018
* User guides LP8756xQ1 Configuration Guide Oct. 11, 2018
Application notes How to Design Flexible Proessor Power Systems Using PMICs (Rev. B) Nov. 25, 2019
Application notes The Benefits of FlexPower PMIC Devices Jul. 02, 2019
Application notes Stability Considerations for LP8756x-Q1 and LP8752x-Q1 Jun. 04, 2019
User guides LP87561I-Q1 Technical Reference Manual (Rev. A) Jan. 11, 2019
User guides LP875610-Q1 Technical Reference Manual Oct. 02, 2018
User guides The LP8756xQ1EVM (SV601325) Evaluation Module (Rev. B) Aug. 13, 2018
User guides LP8756x-Q1EVM (BMC031) Evaluation Module Aug. 09, 2018
Technical articles Don’t underestimate the power of an LDO Oct. 19, 2013
Technical articles How to optimize your DSP power budget Oct. 03, 2013
Technical articles "X" Marks the spot - 7 Treasures in a pirate engineer's treasure chest Sep. 19, 2013
Technical articles Power Tips: How to be discrete Sep. 17, 2013

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
199
Description

The LP87561Q1EVM demonstrates the integrated circuit LP87561-Q1 from Texas Instruments. The LP87561-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
EVALUATION BOARDS Download
document-generic User guide
199
Description

PMICLOADBOARDEVM is a load transient board for evaluating the load transient performance of Texas Instruments power management ICs. Load current can be drawn from two individual channels with separate control signals or the channels can be combined to a parallel channel which is controlled with one (...)

Features
  • Down to 80ns rise and fall times for load transient possible
  • Supports multiple different device families
  • Two load channels and versatile configurability
  • Comprehensive thermal protections including:
    • Heatsink
    • High temperature indicator
    • Optional fan connector
    • Automatic thermal shutdown

Design tools & simulation

SIMULATION MODELS Download
SNVMAZ9A.ZIP (272 KB) - PSpice Model
SIMULATION MODELS Download
SNVMBU8.ZIP (42 KB) - SIMPLIS Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SCHEMATICS Download
SNVR480.ZIP (116 KB)

Reference designs

REFERENCE DESIGNS Download
Automotive High Efficiency Power Front End and Multi-Phase Processor Supply Reference Design
TIDA-01524 — This processor supply reference design is an automotive power solution for use in highperformance, single-core-voltage application processors in advanced driver assistance systems (ADASs). This design can support core supply currents up to 10 A at 0.9 V. The design can also operate with a wide input (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Integrated Power Front End and Multi-Phase Processor Supply Automotive Reference Design
TIDA-01492 — This processor supply reference design is an automotive power solution for use in high performance, single-core-voltage application processors in advanced driver assistance systems (ADASs). This design can support core supply currents up to 10 A at 0.9 V. The design can also operate with a wide (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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

Ordering & quality

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