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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, Thermal Shutdown, UVLO Fixed Operating temperature range (C) -40 to 125 Rating Automotive Processor name EyeQ4 High Processor supplier Mobileye 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: 1.0 V
  • Four High-Efficiency Step-Down DC/DC Converter Cores:
    • Maximum Output Current: 16 A (4A per Phase)
  • Switching Frequency: 3-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 LP875761-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 in forced-PWM mode. The device is controlled by an I2C-compatible serial interface and by enable signals.

The LP875761-Q1 supports remote differential-voltage sensing for multiphase outputs to compensate IR drop between the regulator output and the point-of-load (POL) which improves 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 LP875761-Q1 device supports load-current measurement without the addition of external current-sense resistors. The LP875761-Q1 device also 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 , 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 LP875761-Q1 Four-Phase DC/DC Buck Converter datasheet Dec. 09, 2020
User guide LP875761Q1EVM Evaluation Module User's Guide Oct. 09, 2020
More literature LP875761Q1EVM EU Declaration of Conformity (DoC) Aug. 13, 2020
User guide LP875761A-Q1 Technical Reference Manual Aug. 10, 2020
Application note Power supply design for mobileye eyeQ4 high using LP875761-Q1 Feb. 22, 2019

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 LP875761Q1EVM demonstrates the integrated circuit LP875761-Q1 from Texas Instruments.

The LP875761-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
SNVMC14.ZIP (28 KB) - SIMPLIS Model
SIMULATION MODEL Download
SNVMC22.ZIP (280 KB) - PSpice Model

CAD/CAE symbols

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

Ordering & quality

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  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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