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LP8758-B0

ACTIVO

Convertidor CC-CC monofásico reductor de 16 A de salida

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LP8758-B0

ACTIVO
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Detalles del producto

Product type Processor and FPGA Regulated outputs (#) 1 Step-down DC/DC converter 1 Step-up DC/DC converter 0 LDO 0 Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (min) (V) 0.5 Vout (max) (V) 3.36 Iout (max) (A) 16 Configurability Factory programmable, Software configurable Features Adjustable current limit, Dynamic voltage scaling, Enable, Light-load efficiency, Multiple outputs, Output discharge, Phase interleaving, Power good, Remote sense, Synchronous rectification Rating Catalog Operating temperature range (°C) -40 to 85 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.006 Switching frequency (max) (kHz) 3300 Shutdown current (ISD) (typ) (µA) 1 Switching frequency (typ) (kHz) 3000
Product type Processor and FPGA Regulated outputs (#) 1 Step-down DC/DC converter 1 Step-up DC/DC converter 0 LDO 0 Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (min) (V) 0.5 Vout (max) (V) 3.36 Iout (max) (A) 16 Configurability Factory programmable, Software configurable Features Adjustable current limit, Dynamic voltage scaling, Enable, Light-load efficiency, Multiple outputs, Output discharge, Phase interleaving, Power good, Remote sense, Synchronous rectification Rating Catalog Operating temperature range (°C) -40 to 85 Step-down DC/DC controller 0 Step-up DC/DC controller 0 Iq (typ) (mA) 0.006 Switching frequency (max) (kHz) 3300 Shutdown current (ISD) (typ) (µA) 1 Switching frequency (typ) (kHz) 3000
DSBGA (YFF) 35 6.6 mm² (— mm × — mm)
  • 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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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LP8758-B0 Four-Phase DC/DC Step-Down Converter datasheet (Rev. C) PDF | HTML 2/03/2018
Guía del usuario LP8758 Quick Sample Module User Guide PDF | HTML 25/08/2022
Nota sobre la aplicación LP8758 Flexible Four-Core Buck Regulator 17/08/2015
Artículo técnico Multiphase DC/DC converters provide low ripple, integrated solution for FPGA power PDF | HTML 9/07/2015

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

LP8758EVM — Módulo de evaluación LP8758-B0 del convertidor reductor CC-CC cuatrifásico

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 (...)

Guía del usuario: PDF
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En inventario
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GUI para el módulo de evaluación (EVM)

SNVC189 — LP8758-xxEVM GUI

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Soporte de software

SNVC186 — LP8758EVM Qt Source

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Modelo de simulación

LP8758-B0 PSpice Transient Model

SNVMAW2.ZIP (265 KB) - Modelo PSpice
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Herramienta de cálculo

PEET-GUI — Herramienta de estimación de la eficiencia de los PMIC (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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The TIDA-00574 shows small solution size and high curren density & low noise power solution.  It supports internal sequencing and high output voltage accuracy.

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Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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