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LP8754

ACTIVE

Multiphase 6-Core Step-Down Converter

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Data sheet

LP8754

ACTIVE
Data sheet Order now

Product details

Regulated outputs (#) 6 Configurability Factory programmable, Software configurable Vin (min) (V) 2.5 Vin (max) (V) 5 Vout (min) (V) 0.6 Vout (max) (V) 1.67 Iout (max) (A) 10 Features Adjustable current limit, Dynamic voltage scaling, I2C, Light-load efficiency, Multiple outputs, Phase interleaving, Power good, Remote sense, Synchronous rectification Step-up DC/DC converter 0 Step-down DC/DC converter 6 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 0 Iq (typ) (mA) 0.08 Rating Catalog Switching frequency (max) (kHz) 4000 Operating temperature range (°C) -40 to 85 Shutdown current (ISD) (typ) (µA) 0.1 Switching frequency (typ) (kHz) 3000
Regulated outputs (#) 6 Configurability Factory programmable, Software configurable Vin (min) (V) 2.5 Vin (max) (V) 5 Vout (min) (V) 0.6 Vout (max) (V) 1.67 Iout (max) (A) 10 Features Adjustable current limit, Dynamic voltage scaling, I2C, Light-load efficiency, Multiple outputs, Phase interleaving, Power good, Remote sense, Synchronous rectification Step-up DC/DC converter 0 Step-down DC/DC converter 6 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 0 Iq (typ) (mA) 0.08 Rating Catalog Switching frequency (max) (kHz) 4000 Operating temperature range (°C) -40 to 85 Shutdown current (ISD) (typ) (µA) 0.1 Switching frequency (typ) (kHz) 3000
DSBGA (YFQ) 49 9 mm² 3 x 3
  • Six High-Efficiency Step-Down DC/DC Converter Cores:
    • Max Output Current 10 A
    • Cores Bundled to a 6-Phase Converter
    • Load Current Reporting
    • Programmable Overcurrent Protection (OCP)
    • Auto PWM/PFM and Forced-PWM Operations and
      Automatic Low Power-Mode Setting
    • Automatic Phase Adding/Shedding
    • Remote Differential Feedback Voltage Sensing
    • Output Voltage Ramp Control
    • VOUT Range = 0.6 V to 1.67 V
  • I2C-Compatible Interface which Supports
    Standard (100 kHz), Fast (400 kHz), and High-Speed
    (3.4 MHz) Modes
  • Four Selectable I2C Addresses
  • Interrupt Function with Programmable Masking
  • Output Short-Circuit and Input Overvoltage
    Protection (OVP)
  • Spread Spectrum and Phase Control for EMI
    Reduction
  • Overtemperature Protection (OTP)
  • Undervoltage Lock-out (UVLO)
  • Six High-Efficiency Step-Down DC/DC Converter Cores:
    • Max Output Current 10 A
    • Cores Bundled to a 6-Phase Converter
    • Load Current Reporting
    • Programmable Overcurrent Protection (OCP)
    • Auto PWM/PFM and Forced-PWM Operations and
      Automatic Low Power-Mode Setting
    • Automatic Phase Adding/Shedding
    • Remote Differential Feedback Voltage Sensing
    • Output Voltage Ramp Control
    • VOUT Range = 0.6 V to 1.67 V
  • I2C-Compatible Interface which Supports
    Standard (100 kHz), Fast (400 kHz), and High-Speed
    (3.4 MHz) Modes
  • Four Selectable I2C Addresses
  • Interrupt Function with Programmable Masking
  • Output Short-Circuit and Input Overvoltage
    Protection (OVP)
  • Spread Spectrum and Phase Control for EMI
    Reduction
  • Overtemperature Protection (OTP)
  • Undervoltage Lock-out (UVLO)

The LP8754 is designed to meet the power management requirements of the latest applications processors in mobile phones and similar portable applications. The device contains six step-down DC/DC converter cores, which are bundled together in a 6-phase buck converter. The device is fully controlled by a Dynamic Voltage Scaling (DVS) interface or an I2C-compatible serial interface.

The automatic PWM/PFM operation together with the automatic phase adding/shedding maximizes efficiency over a wide output current range. The LP8754 supports remote differential voltage sensing to compensate IR drop between the regulator output and the point-of-load thus improving the accuracy of the output voltage.

The protection features include short-circuit protection, current limits, input OVP, UVLO, temperature warning, and shutdown functions. Several error flags are provided for status information of the IC. In addition, I2C read-back includes total load current and load current for each buck core: The LP8754 has the ability to sense current being delivered to the load without the addition of current sense resistors. During start-up, the device controls the output voltage slew rate to minimize overshoot and the inrush current.

For all available packages, see the orderable addendum at the end of the datasheet.

The LP8754 is designed to meet the power management requirements of the latest applications processors in mobile phones and similar portable applications. The device contains six step-down DC/DC converter cores, which are bundled together in a 6-phase buck converter. The device is fully controlled by a Dynamic Voltage Scaling (DVS) interface or an I2C-compatible serial interface.

The automatic PWM/PFM operation together with the automatic phase adding/shedding maximizes efficiency over a wide output current range. The LP8754 supports remote differential voltage sensing to compensate IR drop between the regulator output and the point-of-load thus improving the accuracy of the output voltage.

The protection features include short-circuit protection, current limits, input OVP, UVLO, temperature warning, and shutdown functions. Several error flags are provided for status information of the IC. In addition, I2C read-back includes total load current and load current for each buck core: The LP8754 has the ability to sense current being delivered to the load without the addition of current sense resistors. During start-up, the device controls the output voltage slew rate to minimize overshoot and the inrush current.

For all available packages, see the orderable addendum at the end of the datasheet.
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Technical documentation

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* Data sheet LP8754 Multi-Phase Six-Core Step-Down Converter datasheet (Rev. A) PDF | HTML 19 Aug 2014
Technical article Thinking beyond the buck controller for high-output power supplies PDF | HTML 27 May 2016
Technical article Multiphase DC/DC converters provide low ripple, integrated solution for FPGA power PDF | HTML 09 Jul 2015
EVM User's guide LP8754EVM User's Guide (6-Phase) 19 Aug 2014

Design & development

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SNVC158 — LP8754 Evaluation Software

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Multi-channel ICs (PMICs)
LP8754 — Multiphase 6-Core Step-Down Converter
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DSBGA (YFQ) 49 Ultra Librarian
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