LP3907-Q1 Series

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

Catalog

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

Part	Mounting Type	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Topology	Voltage/Current - Output 3	Number of Outputs	Frequency - Switching	Voltage/Current - Output 1 [custom]	Voltage/Current - Output 1 [custom]	Voltage/Current - Output 2	Package / Case	Current - Output	Board Type	Supplied Contents	Main Purpose	Voltage - Input [Min]	Voltage - Input [Max]	Outputs and Type	Outputs and Type	Regulator Topology	Utilized IC / Part
Texas Instruments LP3907SQX-JXQX/NOPB	Surface Mount	24-WQFN (4x4)	85 °C	-40 °C	Linear (LDO) (2) Step-Down (Buck) Synchronous (2)	2.6 V 300 mA	4	2.1 MHz	1.2 V	1 A	3.3 V 600 mA	24-WFQFN Exposed Pad
Texas Instruments LP3907TLEVM								2.1 MHz					1 A 300 mA 600 mA	Fully Populated	Board(s) Cable(s)	DC/DC Step Down with LDO	2.8 V	5.5 V	4	Non-Isolated	Buck	LP3907
Texas Instruments LP3907SQX-TJXIP/NOPB	Surface Mount	24-WQFN (4x4)	85 °C	-40 °C	Linear (LDO) (2) Step-Down (Buck) Synchronous (2)	1.8 V 300 mA	4	2.1 MHz	1.2 V	1 A	3.3 V 600 mA	24-WFQFN Exposed Pad
Texas Instruments LP3907SQX-PJXIX/NOPB	Surface Mount	24-WQFN (4x4)	85 °C	-40 °C	Linear (LDO) (2) Step-Down (Buck) Synchronous (2)	1.8 V 300 mA	4	2.1 MHz	1.2 V	1 A	3.3 V 600 mA	24-WFQFN Exposed Pad
Texas Instruments LP3907TLX-JJCP/NOPB	Surface Mount	25-uSMD	85 °C	-40 °C	Linear (LDO) (2) Step-Down (Buck) Synchronous (2)	1.2 V 300 mA	4	2.1 MHz	1.2 V	1 A	1.8 V 600 mA	25-WFBGA
Texas Instruments LP3907SQ-PFX6W/NOPB	Surface Mount	24-WQFN (4x4)	85 °C	-40 °C	Linear (LDO) (2) Step-Down (Buck) Synchronous (2)	2.65 V 300 mA	4	2.1 MHz	1 V	1 A	3.3 V 600 mA	24-WFQFN Exposed Pad
Texas Instruments LP3907SQX-VRZX/NOPB	Surface Mount	24-WQFN (4x4)	85 °C	-40 °C	Linear (LDO) (2) Step-Down (Buck) Synchronous (2)	3.5 V 300 mA	4	2.1 MHz	1.8 V	1 A	2.7 V 600 mA	24-WFQFN Exposed Pad
Texas Instruments LP3907TL-JJCP/NOPB	Surface Mount	25-uSMD	85 °C	-40 °C	Linear (LDO) (2) Step-Down (Buck) Synchronous (2)	1.2 V 300 mA	4	2.1 MHz	1.2 V	1 A	1.8 V 600 mA	25-WFBGA
Texas Instruments LP3907SQ-BJXQX/NOPB	Surface Mount	24-WQFN (4x4)	85 °C	-40 °C	Linear (LDO) (2) Step-Down (Buck) Synchronous (2)	2.6 V 300 mA	4	2.1 MHz	1.2 V	1 A	3.3 V 600 mA	24-WFQFN Exposed Pad
Texas Instruments LP3907SQX-BJXQX/NOPB	Surface Mount	24-WQFN (4x4)	85 °C	-40 °C	Linear (LDO) (2) Step-Down (Buck) Synchronous (2)	2.6 V 300 mA	4	2.1 MHz	1.2 V	1 A	3.3 V 600 mA	24-WFQFN Exposed Pad

Catalog

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

Key Features

• Qualified for Automotive ApplicationsAEC Q100-Qualified With the Following ResultsDevice Temperature Grade 1: –40°C to +125°C Ambient Operating TemperatureInput Voltage Range: 2.8 V to 5.5 VCompatible with Advanced Applications Processors and FPGAs2 LDOs for Powering Internal Processor Functions and I/OsHigh-Speed Serial Interface for Independent Control of Device Functions and SettingsPrecision Internal ReferenceThermal Overload ProtectionCurrent Overload ProtectionSoftware Programmable RegulatorsExternal Power-On-Reset Function for Buck1 and Buck2 (Power Good with Delay Function)Undervoltage Lockout Detector to Monitor Input Supply VoltageStep-Down DC-DC Converters (Buck)Programmable VOUTfrom:Buck1 : 0.8 V–2 V at 1 ABuck2 : 1 V–3.5 V at 600 mAUp to 96% Efficiency2.1-MHz PWM Switching FrequencyPWM-to-PFM Automatic Mode ChangeUnder Low Loads±3% Output Voltage AccuracyAutomatic Soft StartLinear Regulators (LDO)Programmable VOUTof 1 V to 3.5 V300-mA Output Current30-mV (typical) DropoutQualified for Automotive ApplicationsAEC Q100-Qualified With the Following ResultsDevice Temperature Grade 1: –40°C to +125°C Ambient Operating TemperatureInput Voltage Range: 2.8 V to 5.5 VCompatible with Advanced Applications Processors and FPGAs2 LDOs for Powering Internal Processor Functions and I/OsHigh-Speed Serial Interface for Independent Control of Device Functions and SettingsPrecision Internal ReferenceThermal Overload ProtectionCurrent Overload ProtectionSoftware Programmable RegulatorsExternal Power-On-Reset Function for Buck1 and Buck2 (Power Good with Delay Function)Undervoltage Lockout Detector to Monitor Input Supply VoltageStep-Down DC-DC Converters (Buck)Programmable VOUTfrom:Buck1 : 0.8 V–2 V at 1 ABuck2 : 1 V–3.5 V at 600 mAUp to 96% Efficiency2.1-MHz PWM Switching FrequencyPWM-to-PFM Automatic Mode ChangeUnder Low Loads±3% Output Voltage AccuracyAutomatic Soft StartLinear Regulators (LDO)Programmable VOUTof 1 V to 3.5 V300-mA Output Current30-mV (typical) Dropout

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. 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.