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Product details

Parameters

Regulated outputs (#) 4 Vin (Min) (V) 2.8 Vin (Max) (V) 5.5 Iout (Max) (A) 1 Step-down DC/DC controller 0 Step-down DC/DC converter 2 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 2 Iq (Typ) (mA) 0.04 Features Comm Control, Dynamic Voltage Scaling, Enable, Over Current Protection, Power Good, Synchronous Rectification, Thermal Shutdown, UVLO Adjustable Operating temperature range (C) -40 to 125 Rating Automotive Processor name Advanced Apps Processors, FPGA, Generic Processor supplier Generic Shutdown current (Typ) (uA) 3 Configurability Factory programmable, Software configurable open-in-new Find other Multi-channel ICs (PMIC)

Package | Pins | Size

DSBGA (YZR) 25 8 mm² 2.53 x 2.53 WQFN (RTW) 24 16 mm² 4 x 4 open-in-new Find other Multi-channel ICs (PMIC)

Features

  • Qualified for Automotive Applications
  • AEC Q100-Qualified With the Following Results
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • 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
    • 300-mA Output Current
    • 30-mV (typical) Dropout

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Description

The LP3907-Q1 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-Q1 additionally features programmable power-on sequencing. This device is an Automotive-Grade Product that is AECQ-100 Grade 1 Qualified.

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
* Datasheet LP3907-Q1 Dual 1-A and 600-mA Buck Converters and Dual 300-mA LDOs With I2C Interface for Automotive Applications datasheet (Rev. C) Jan. 10, 2018
Technical articles Don’t underestimate the power of an LDO Oct. 19, 2013
Technical articles How to optimize your DSP power budget Oct. 03, 2013
Technical articles "X" Marks the spot - 7 Treasures in a pirate engineer's treasure chest Sep. 19, 2013
Technical articles Power Tips: How to be discrete Sep. 17, 2013
User guides Evaluation Kit for LP3907 Programmable Pwr Management Unit w/ I2C Compatible I/F (Rev. A) Apr. 30, 2013
Application notes Saving Energy via Smart Power Management (Power Designer-118) Feb. 17, 2012

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
149
Description
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 compatible (...)
Features
  • 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
  • 24-lead 4 x 4 x (...)

Design tools & simulation

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PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
DSBGA (YZR) 25 View options
WQFN (RTW) 24 View options

Ordering & quality

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