LP3907

ACTIVE

LP3907 Dual 1A and 600mA Buck Converters and Dual 300mA LDOs with I2C Interface

Product details

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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Technical documentation

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Type Title Date
* 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 Jan 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
EVM User's guide Using the LP3907TLEVM Evaluation Module 22 Jan 2016
Application note Enhancing Bit-Flip Recovery and PMU Design For Defense/Industrial Applications 14 Aug 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 Apr 2013
Application note Saving Energy via Smart Power Management (Power Designer-118) 17 Feb 2012

Design & development

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

Evaluation board

LP3907SQ-JXQXEV — LP3907SQ-JXQX Evaluation Board

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 (...)
User guide: PDF
Not available on TI.com
Evaluation board

LP3907TLEVM — LP3907 Dual High Current Step Down DC/DC & Dual Linear Regulators w/I2C Interface Evaluation Module

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 (...)

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

SNVC197 LP3907 EVM GUI

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Supported products & hardware

Supported products & hardware

Products
Multi-channel ICs (PMICs)
LP3907 LP3907 Dual 1A and 600mA Buck Converters and Dual 300mA LDOs with I2C Interface
Package Pins Download
DSBGA (YZR) 25 View options
WQFN (RTW) 24 View options

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