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LP8758-B0

ACTIVE

Four-phase, single 16A output DC-DC step-down converter

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Data sheet

LP8758-B0

ACTIVE
Data sheet Order now

Product details

Regulated outputs (#) 1 Configurability Factory programmable, Software configurable Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (min) (V) 0.5 Vout (max) (V) 3.36 Iout (max) (A) 16 Features Adjustable current limit, Dynamic voltage scaling, Enable, Light-load efficiency, Multiple outputs, Output discharge, Phase interleaving, Power good, Remote sense, Synchronous rectification Step-up DC/DC converter 0 Step-down DC/DC converter 1 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 0 Iq (typ) (mA) 0.006 Rating Catalog Switching frequency (max) (kHz) 3300 Operating temperature range (°C) -40 to 85 Shutdown current (ISD) (typ) (µA) 1 Switching frequency (typ) (kHz) 3000 Product type Processor and FPGA
Regulated outputs (#) 1 Configurability Factory programmable, Software configurable Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (min) (V) 0.5 Vout (max) (V) 3.36 Iout (max) (A) 16 Features Adjustable current limit, Dynamic voltage scaling, Enable, Light-load efficiency, Multiple outputs, Output discharge, Phase interleaving, Power good, Remote sense, Synchronous rectification Step-up DC/DC converter 0 Step-down DC/DC converter 1 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 0 Iq (typ) (mA) 0.006 Rating Catalog Switching frequency (max) (kHz) 3300 Operating temperature range (°C) -40 to 85 Shutdown current (ISD) (typ) (µA) 1 Switching frequency (typ) (kHz) 3000 Product type Processor and FPGA
DSBGA (YFF) 35 6.6 mm² 2.2 x 3
  • High-Efficiency Step-Down Four-Phase DC/DC Converter Cores:
    • Maximum Output Current 16 A
    • Auto PWM-PFM and Forced-PWM Operations
    • Auto Phase Adding/Shedding and Force Multi-Phase Operations
    • Remote Differential Feedback Voltage Sensing
    • Programmable Output Voltage Slew-Rate from 30 mV/µs to 0.5 mV/µs
    • VOUT Range = 0.5 V to 3.36 V with DVS
  • Programmable Start-up and Shutdown Delays with Enable Signal
  • I2C-Compatible Interface which Supports Standard (100 kHz), Fast (400 kHz), Fast+ (1 MHz), and High-Speed (3.4 MHz) Modes
  • Interrupt Function with Programmable Masking
  • Load Current Measurement
  • Output Short-Circuit and Overload Protection
  • Spread-Spectrum Mode and Phase Interleaving for EMI Reduction
  • Overtemperature Warning and Protection
  • Undervoltage Lockout (UVLO)
  • High-Efficiency Step-Down Four-Phase DC/DC Converter Cores:
    • Maximum Output Current 16 A
    • Auto PWM-PFM and Forced-PWM Operations
    • Auto Phase Adding/Shedding and Force Multi-Phase Operations
    • Remote Differential Feedback Voltage Sensing
    • Programmable Output Voltage Slew-Rate from 30 mV/µs to 0.5 mV/µs
    • VOUT Range = 0.5 V to 3.36 V with DVS
  • Programmable Start-up and Shutdown Delays with Enable Signal
  • I2C-Compatible Interface which Supports Standard (100 kHz), Fast (400 kHz), Fast+ (1 MHz), and High-Speed (3.4 MHz) Modes
  • Interrupt Function with Programmable Masking
  • Load Current Measurement
  • Output Short-Circuit and Overload Protection
  • Spread-Spectrum Mode and Phase Interleaving for EMI Reduction
  • Overtemperature Warning and Protection
  • Undervoltage Lockout (UVLO)

The LP8758 is designed to meet the power management requirements of the latest application processors in mobile phones and similar portable applications. The device contains four step-down DC/DC converter cores, which are bundled together in a single 4-phase buck converter. The device is controlled by an I2C-compatible serial interface.

The automatic PWM-PFM (AUTO mode) operation, together with the automatic phase adding/shedding, maximizes efficiency over a wide output-current range. The LP8758 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 LP8758 supports programmable start-up and shutdown delays synchronized to Enable signal.

The protection features include short-circuit protection, current limits, input supply UVLO, and temperature warning and shutdown functions. Several error flags are provided for status information of the device. In addition, the LP8758 device supports load current measurement without the addition of external current sense resistors. During start-up and voltage change, the device controls the output slew rate to minimize output voltage overshoot and the inrush current.

The LP8758 is designed to meet the power management requirements of the latest application processors in mobile phones and similar portable applications. The device contains four step-down DC/DC converter cores, which are bundled together in a single 4-phase buck converter. The device is controlled by an I2C-compatible serial interface.

The automatic PWM-PFM (AUTO mode) operation, together with the automatic phase adding/shedding, maximizes efficiency over a wide output-current range. The LP8758 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 LP8758 supports programmable start-up and shutdown delays synchronized to Enable signal.

The protection features include short-circuit protection, current limits, input supply UVLO, and temperature warning and shutdown functions. Several error flags are provided for status information of the device. In addition, the LP8758 device supports load current measurement without the addition of external current sense resistors. During start-up and voltage change, the device controls the output slew rate to minimize output voltage overshoot and the inrush current.

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Technical documentation

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Type Title Date
* Data sheet LP8758-B0 Four-Phase DC/DC Step-Down Converter datasheet (Rev. C) PDF | HTML 02 Mar 2018
User guide LP8758 Quick Sample Module User Guide PDF | HTML 25 Aug 2022
Application note LP8758 Flexible Four-Core Buck Regulator 17 Aug 2015
Technical article Multiphase DC/DC converters provide low ripple, integrated solution for FPGA power PDF | HTML 09 Jul 2015
EVM User's guide Using the LP8758EVM Evaluation Module 21 May 2015

Design & development

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

Evaluation board

LP8758EVM — LP8758-B0 Four-Phase DC-DC Step-Down Converter Evaluation Module

The LP8758EVM demonstrates the integrated circuit LP8758 from Texas Instruments. The LP8758 is a high-performance, multiphase step-down converter designed to meet the power management requirements of the latest applications processors in mobile phones and similar portable applications. The device (...)

User guide: PDF
Not available on TI.com
GUI for evaluation module (EVM)

SNVC189 — LP8758-xxEVM GUI

Supported products & hardware

Supported products & hardware

Products
Multi-channel ICs (PMICs)
LP8758-B0 — Four-phase, single 16A output DC-DC step-down converter LP8758-E0 — Four, single-phase, 4-A output DC-DC step-down converter LP8758-E3 — Four, single-phase, 4-A output DC-DC step-down converter LP8758-EA — Four, single-phase 4-A output DC-DC step-down converter
Hardware development
Evaluation board
LP8758-E0EVM — LP8758-E0 Four Output Step-Down DC-DC Regulator Evaluation Module LP8758EVM — LP8758-B0 Four-Phase DC-DC Step-Down Converter Evaluation Module
Download
Support software

SNVC186 — LP8758EVM Qt Source

Supported products & hardware

Supported products & hardware

Products
Multi-channel ICs (PMICs)
LP8758-B0 — Four-phase, single 16A output DC-DC step-down converter LP8758-E0 — Four, single-phase, 4-A output DC-DC step-down converter LP8758-E3 — Four, single-phase, 4-A output DC-DC step-down converter LP8758-EA — Four, single-phase 4-A output DC-DC step-down converter
Hardware development
Evaluation board
LM26480SQ-AAEV — LM26480SQ-AA evaluation module: configurable power management IC (PMIC) with 2 DC/DCs and 2 LDOs LP8758EVM — LP8758-B0 Four-Phase DC-DC Step-Down Converter Evaluation Module
Download
Simulation model

LP8758-B0 PSpice Transient Model

SNVMAW2.ZIP (265 KB) - PSpice Model
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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 (...)
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Reference designs

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TIDA-00596 — Small Solution Size Multi Rail Reference Design for Server Line Card

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DSBGA (YFF) 35 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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