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LP3907

ACTIVO

Convertidores buck LP3907 doble de 1 A y 600 mA y LDO doble de 300 mA con interfaz I2C

Detalles del producto

Regulated outputs (#) 4 Configurability Factory programmable, Software configurable Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.8 Vout (max) (V) 3.5 Iout (max) (A) 1 Features Comm control, Dynamic voltage scaling, Enable, Overcurrent protection, Power good, Synchronous rectification, Thermal shutdown, UVLO adjustable Step-up DC/DC converter 0 Step-down DC/DC converter 2 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 2 Iq (typ) (mA) 0.04 Rating Catalog Switching frequency (max) (kHz) 2100 Operating temperature range (°C) -40 to 85 Processor supplier Generic Processor name Generic Shutdown current (ISD) (typ) (µA) 3 Switching frequency (typ) (kHz) 2100 Product type Processor and FPGA
Regulated outputs (#) 4 Configurability Factory programmable, Software configurable Vin (min) (V) 2.8 Vin (max) (V) 5.5 Vout (min) (V) 0.8 Vout (max) (V) 3.5 Iout (max) (A) 1 Features Comm control, Dynamic voltage scaling, Enable, Overcurrent protection, Power good, Synchronous rectification, Thermal shutdown, UVLO adjustable Step-up DC/DC converter 0 Step-down DC/DC converter 2 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 2 Iq (typ) (mA) 0.04 Rating Catalog Switching frequency (max) (kHz) 2100 Operating temperature range (°C) -40 to 85 Processor supplier Generic Processor name Generic Shutdown current (ISD) (typ) (µA) 3 Switching frequency (typ) (kHz) 2100 Product type Processor and FPGA
DSBGA (YZR) 25 7.5625 mm² 2.75 x 2.75 WQFN (RTW) 24 16 mm² 4 x 4
  • Input Voltage Range: 2.8 V to 5.5 V
  • Compatible with Advanced Applications Processors and FPGAs
  • 2 LDOs for Powering Internal Processor Functions and I/Os
  • High-Speed Serial Interface for Independent Control of Device Functions and Settings
  • Precision Internal Reference
  • Thermal Overload Protection
  • Current Overload Protection
  • Software Programmable Regulators
  • External Power-On-Reset Function for Buck1 and Buck2 (Power Good with Delay Function)
  • Undervoltage Lockout Detector to Monitor Input Supply Voltage
  • Step-Down DC-DC Converters (Buck)
    • Programmable VOUT from:
      • Buck1 : 0.8 V–2 V at 1 A
      • Buck2 : 1 V–3.5 V at 600 mA
    • Up to 96% Efficiency
    • 2.1-MHz PWM Switching Frequency
    • PWM-to-PFM Automatic Mode Change
      Under Low Loads
    • ±3% Output Voltage Accuracy
    • Automatic Soft Start
  • Linear Regulators (LDO)
    • Programmable VOUT of 1 V to 3.5 V
      (except JJ11, FX6W, and JX6X options)
    • 300-mA Output Current
    • 30-mV (typical) Dropout
    • Create a Custom Design Using the LP3907 With the WEBENCH® Power Designer
  • Input Voltage Range: 2.8 V to 5.5 V
  • Compatible with Advanced Applications Processors and FPGAs
  • 2 LDOs for Powering Internal Processor Functions and I/Os
  • High-Speed Serial Interface for Independent Control of Device Functions and Settings
  • Precision Internal Reference
  • Thermal Overload Protection
  • Current Overload Protection
  • Software Programmable Regulators
  • External Power-On-Reset Function for Buck1 and Buck2 (Power Good with Delay Function)
  • Undervoltage Lockout Detector to Monitor Input Supply Voltage
  • Step-Down DC-DC Converters (Buck)
    • Programmable VOUT from:
      • Buck1 : 0.8 V–2 V at 1 A
      • Buck2 : 1 V–3.5 V at 600 mA
    • Up to 96% Efficiency
    • 2.1-MHz PWM Switching Frequency
    • PWM-to-PFM Automatic Mode Change
      Under Low Loads
    • ±3% Output Voltage Accuracy
    • Automatic Soft Start
  • Linear Regulators (LDO)
    • Programmable VOUT of 1 V to 3.5 V
      (except JJ11, FX6W, and JX6X options)
    • 300-mA Output Current
    • 30-mV (typical) Dropout
    • Create a Custom Design Using the LP3907 With the WEBENCH® Power Designer

The LP3907 device is a multi-function, programmable power management unit (PMU) optimized for low-power FPGAs, microprocessors, and DSPs. This device integrates two highly efficient 1-A, 600-mA step-down DC-DC converters with dynamic voltage scaling (DVS), two 300-mA linear regulators, and a 400-kHz I2C interface to allow a host controller access to the internal control registers of the device. The LP3907 additionally features programmable power-on sequencing.

Features include programmable power-on sequencing, communication control (I2C), dynamic voltage scaling, overcurrent protection, Power Good, synchronous rectification, thermal shutdown, and undervoltage lockout. For applications requiring light loads, the high-efficiency synchronous switching buck regulators enter PFM mode and operate with reduced switching frequency and supply current to maintain high efficiency at very light loads.

The LP3907 device is a multi-function, programmable power management unit (PMU) optimized for low-power FPGAs, microprocessors, and DSPs. This device integrates two highly efficient 1-A, 600-mA step-down DC-DC converters with dynamic voltage scaling (DVS), two 300-mA linear regulators, and a 400-kHz I2C interface to allow a host controller access to the internal control registers of the device. The LP3907 additionally features programmable power-on sequencing.

Features include programmable power-on sequencing, communication control (I2C), dynamic voltage scaling, overcurrent protection, Power Good, synchronous rectification, thermal shutdown, and undervoltage lockout. For applications requiring light loads, the high-efficiency synchronous switching buck regulators enter PFM mode and operate with reduced switching frequency and supply current to maintain high efficiency at very light loads.

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Documentación técnica

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Tipo Título Fecha
* Data sheet LP3907 Dual 1-A and 600-mA Buck Converters and Dual 300-mA LDOs With I2C Interface datasheet (Rev. U) PDF | HTML 10 ene 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
EVM User's guide Using the LP3907TLEVM Evaluation Module 22 ene 2016
Application note Enhancing Bit-Flip Recovery and PMU Design For Defense/Industrial Applications 14 ago 2014
Application note Parasitics can Hinder Switcher Regulator and LDO Designs (Rev. A) 01 jul 2014
User guide Evaluation Kit for LP3907 Programmable Pwr Management Unit w/ I2C Compatible I/F (Rev. A) 30 abr 2013
Application note Saving Energy via Smart Power Management (Power Designer-118) 17 feb 2012

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

LP3907SQ-JXQXEV — Placa de evaluación LP3907SQ-JXQX

The LP3907 is a multi-function, programmable Power Management Unit, optimized for low power FPGAs, microprocessors and DSPs. This device integrates two highly efficient 1A/600mA step-down DC/DC converters with dynamic voltage management (DVM), two 300mA linear regulators and a 400kHz I2 C (...)
Guía del usuario: PDF
Placa de evaluación

LP3907TLEVM — Módulo de evaluación LP3907 de reguladores reductores lineales dobles de corriente alta de CC/CC con

The LP3907TL EVM allows customer to evludate the function of LP3907, which is a multi-function, programmable power management unit (PMIC), optimized for low power FPGAs, microprocessors, and DSPs.  This device integrates two highly efficient step-down DC/DC converters with dynamic voltage (...)

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

SNVC197 LP3907 EVM GUI

lock = Requiere aprobación de exportación (1 minuto)
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Circuitos integrados multicanal (PMIC)
LP3907 Convertidores buck LP3907 doble de 1 A y 600 mA y LDO doble de 300 mA con interfaz I2C
Paquete Pasadores Descargar
DSBGA (YZR) 25 Ver opciones
WQFN (RTW) 24 Ver opciones

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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