LP3906

ACTIVE

Dual High-Current Step-Down DC/DC and Dual Linear Regulator with I2C Compatible Interface

Product details

Regulated outputs (#) 4 Configurability Factory programmable, Software configurable Vin (min) (V) 2.7 Vin (max) (V) 5.5 Vout (min) (V) 0.8 Vout (max) (V) 3.5 Iout (max) (A) 1.5 Features Comm control, Dynamic voltage scaling, Enable, Overcurrent protection, Synchronous rectification, Thermal shutdown, UVLO fixed 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) 0.07 Rating Catalog Switching frequency (max) (kHz) 2000 Operating temperature range (°C) -40 to 85 Processor supplier Generic Processor name Generic Shutdown current (ISD) (typ) (µA) 0.04 Switching frequency (typ) (kHz) 2000
Regulated outputs (#) 4 Configurability Factory programmable, Software configurable Vin (min) (V) 2.7 Vin (max) (V) 5.5 Vout (min) (V) 0.8 Vout (max) (V) 3.5 Iout (max) (A) 1.5 Features Comm control, Dynamic voltage scaling, Enable, Overcurrent protection, Synchronous rectification, Thermal shutdown, UVLO fixed 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) 0.07 Rating Catalog Switching frequency (max) (kHz) 2000 Operating temperature range (°C) -40 to 85 Processor supplier Generic Processor name Generic Shutdown current (ISD) (typ) (µA) 0.04 Switching frequency (typ) (kHz) 2000
WQFN (NHZ) 24 20 mm² 5 x 4
  • 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 5 × 4 × 0.8 mm WQFN Package
  • Software Programmable Regulators

Key Specifications

  • DC/DC Converter (Buck)
    • 1.5A Output Current
    • Programmable VOUT from:Buck1 : 0.8V–2.0VBuck2 : 1.0V–3.5V
    • Up to 96% Efficiency
    • 2 MHz PWM Switching Frequency
    • ±3% Output Voltage Accuracy
    • Automatic Soft Start
  • Linear Regulators (LDO)
    • Programmable VOUT of 1.0V–3.5V
    • ±3% Output Voltage Accuracy
    • 300 mA Output Currents
    • 25 mW (Typ) Dropout

All trademarks are the property of their respective owners.

  • 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 5 × 4 × 0.8 mm WQFN Package
  • Software Programmable Regulators

Key Specifications

  • DC/DC Converter (Buck)
    • 1.5A Output Current
    • Programmable VOUT from:Buck1 : 0.8V–2.0VBuck2 : 1.0V–3.5V
    • Up to 96% Efficiency
    • 2 MHz PWM Switching Frequency
    • ±3% Output Voltage Accuracy
    • Automatic Soft Start
  • Linear Regulators (LDO)
    • Programmable VOUT of 1.0V–3.5V
    • ±3% Output Voltage Accuracy
    • 300 mA Output Currents
    • 25 mW (Typ) Dropout

All trademarks are the property of their respective owners.

The LP3906 is a multi-function, programmable Power Management Unit, optimized for low power FPGAs, Microprocessors and DSPs.

This device integrates two highly efficient 1.5A Step-Down DC/DC converters with dynamic voltage management (DVM), two 300mA Linear Regulators and a 400kHz I2C compatible interface to allow a host controller access to the internal control registers of the LP3906. The LP3906 additionally features programmable power-on sequencing and is offered in a tiny 5 x 4 x 0.8mm WQFN-24 pin package.

The LP3906 is a multi-function, programmable Power Management Unit, optimized for low power FPGAs, Microprocessors and DSPs.

This device integrates two highly efficient 1.5A Step-Down DC/DC converters with dynamic voltage management (DVM), two 300mA Linear Regulators and a 400kHz I2C compatible interface to allow a host controller access to the internal control registers of the LP3906. The LP3906 additionally features programmable power-on sequencing and is offered in a tiny 5 x 4 x 0.8mm WQFN-24 pin package.

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Similar functionality to the compared device
LM26480-Q1 ACTIVE Externally configurable dual 1.5A step-down DC/DC and dual 300mA linear regulators This product is AEQ-100 qualified.

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 5
Type Title Date
* Data sheet LP3906 Dual High-Current Step-Dwn DC/DC & Dual Linear Reg w/I2C Comp Interface datasheet (Rev. M) 03 May 2013
User guide AN-1532 LP3906 Evaluation Kit (Rev. C) 30 Apr 2013
Application note Saving Energy via Smart Power Management (Power Designer-118) 17 Feb 2012
User guide LP3906 Smart Power Reference Design - 4 outputs User Guide 27 Jan 2012
Application note Implementing Single-Chip FPGA Power Solutions 21 Mar 2007

Design & development

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

GUI for evaluation module (EVM)

LP3906EVM-SW LP3906 Evaluation Board software

Supported products & hardware

Supported products & hardware

Products
Multi-channel ICs (PMICs)
LP3906 Dual High-Current Step-Down DC/DC and Dual Linear Regulator with I2C Compatible Interface
Package Pins Download
WQFN (NHZ) 24 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos