LP3907
LP3907 Dual 1A and 600mA Buck Converters and Dual 300mA LDOs with I2C Interface
LP3907
- 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
- Programmable VOUT from:
- 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
- Programmable VOUT of 1 V to 3.5 V
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.
Similar products you might be interested in
Pin-for-pin with same functionality to the compared device
Similar functionality to the compared device
Technical documentation
| 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.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| DSBGA (YZR) | 25 | Ultra Librarian |
| WQFN (RTW) | 24 | Ultra Librarian |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- 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.