TPS65131-Q1 Series

Automotive split-rail converter with dual, positive and negative outputs (750mA typ)

Catalog

Automotive split-rail converter with dual, positive and negative outputs (750mA typ)

Part	Supplied Contents	Voltage - Output	Main Purpose	Outputs and Type	Outputs and Type	Utilized IC / Part	Current - Output	Voltage - Input [Min]	Voltage - Input [Max]	Regulator Topology	Board Type	Supplier Device Package	Voltage - Output (Max)	Package / Case	Frequency - Switching	Operating Temperature [Max]	Operating Temperature [Min]	Topology	Voltage - Input (Min) [Min]	Function	Number of Outputs	Mounting Type	Output Type	Voltage - Output (Min/Fixed)	Voltage - Output (Min/Fixed)	Output Configuration	Voltage - Input (Max) [Max]	Grade	Qualification
Texas Instruments TPS65131EVM-839	Board(s)	-12 V 12 V	DC/DC Positive and Negative	2	Non-Isolated	TPS65131	200 mA 400 mA	3 V	3.6 V	Boost	Fully Populated
Texas Instruments TPS65131RGETG4							1.8 A					24-VQFN (4x4)	-15 V 15 V	24-VFQFN Exposed Pad	1.38 MHz	85 °C	-40 °C	Boost Buck-Boost	2.7 V	Step-Up Step-Up/Step-Down	2	Surface Mount	Adjustable	3.2 V	-2 V	Positive and Negative (Dual Rail)	5.5 V
Texas Instruments TPS65131TRGERQ1							1.7 A					24-VQFN (4x4)	-15 V 15 V	24-VFQFN Exposed Pad	1.38 MHz	105 °C	-40 °C	Boost Buck-Boost	2.7 V	Step-Up Step-Up/Step-Down	2	Surface Mount	Adjustable	3.2 V	-2 V	Positive and Negative (Dual Rail)	5.5 V	Automotive	AEC-Q100
Texas Instruments TPS65131RGER							1.8 A					24-VQFN (4x4)	-15 V 15 V	24-VFQFN Exposed Pad	1.38 MHz	85 °C	-40 °C	Boost Buck-Boost	2.7 V	Step-Up Step-Up/Step-Down	2	Surface Mount	Adjustable	3.2 V	-2 V	Positive and Negative (Dual Rail)	5.5 V

Catalog

Automotive split-rail converter with dual, positive and negative outputs (750mA typ)

Key Features

• Qualified for automotive applicationsAEC-Q100 test guidance with the following results:Device temperature grade 2: –40°C to 105°C ambient operating temperature rangeElectrical characteristics tested over –40°C to 125°C junction temperature rangeDevice HBM ESD classification level H1CDevice CDM ESD classification level C4BDual adjustable output voltages up to 15V and down to –15V2A typical switch-current limit for boost and inverter main switchesHigh conversion efficiencyUp to 91% at positive output railUp to 85% at negative output railPower-save mode at low loadIndependent enable inputs for power-up and power-down SequencingControl output for external PFET to support complete supply Disconnect When Shut Down2.7V to 5.5V input-voltage rangeMinimum 1.25MHz fixed-frequency PWM operationThermal shutdownOvervoltage protection on both outputs0.2µA typical shutdown currentSmall 4mm × 4mm QFN-24 package (RGE) with wettable flanksQualified for automotive applicationsAEC-Q100 test guidance with the following results:Device temperature grade 2: –40°C to 105°C ambient operating temperature rangeElectrical characteristics tested over –40°C to 125°C junction temperature rangeDevice HBM ESD classification level H1CDevice CDM ESD classification level C4BDual adjustable output voltages up to 15V and down to –15V2A typical switch-current limit for boost and inverter main switchesHigh conversion efficiencyUp to 91% at positive output railUp to 85% at negative output railPower-save mode at low loadIndependent enable inputs for power-up and power-down SequencingControl output for external PFET to support complete supply Disconnect When Shut Down2.7V to 5.5V input-voltage rangeMinimum 1.25MHz fixed-frequency PWM operationThermal shutdownOvervoltage protection on both outputs0.2µA typical shutdown currentSmall 4mm × 4mm QFN-24 package (RGE) with wettable flanks

Description

The TPS65131-Q1 device is dual-output dc-dc converter generating a positive output voltage up to 15V and a negative output voltage down to –15V with output currents of typically 200mA, depending on input-voltage to output-voltage ratio. With a total efficiency up to 85%, the device is ideal for portable battery-powered equipment. The input-voltage range of 2.7V to 5.5V allows, for example, 3.3V and 5V rails to power the TPS65131-Q1 device. The TPS65131-Q1 device comes in a QFN-24 package with thermal pad and wettable flanks. Requiring few and small external components, the overall solution size can be small. The converter operates with a fixed-frequency PWM control topology and, with power-save mode enabled, uses a pulse-skipping mode at light load currents. In operation, the typical overall device quiescent current is only 500µA. In shutdown, the device draws typically 0.2µA. Independent enable pins allow power-up and power-down sequencing for both outputs. The device has an internal current limit, overvoltage protection, and a thermal shutdown for highest reliability under fault conditions. The TPS65131-Q1 device is qualified for automotive applications, according to AEC-Q100 temperature grade 2. The electrical characteristics are tested over –40°C to 125°C device junction temperature. This, combined with lowest shutdown currents, small solution size, package with thermal pad, plus good efficiency and protection features, targets automotive and industrial applications. The TPS65131-Q1 device is dual-output dc-dc converter generating a positive output voltage up to 15V and a negative output voltage down to –15V with output currents of typically 200mA, depending on input-voltage to output-voltage ratio. With a total efficiency up to 85%, the device is ideal for portable battery-powered equipment. The input-voltage range of 2.7V to 5.5V allows, for example, 3.3V and 5V rails to power the TPS65131-Q1 device. The TPS65131-Q1 device comes in a QFN-24 package with thermal pad and wettable flanks. Requiring few and small external components, the overall solution size can be small. The converter operates with a fixed-frequency PWM control topology and, with power-save mode enabled, uses a pulse-skipping mode at light load currents. In operation, the typical overall device quiescent current is only 500µA. In shutdown, the device draws typically 0.2µA. Independent enable pins allow power-up and power-down sequencing for both outputs. The device has an internal current limit, overvoltage protection, and a thermal shutdown for highest reliability under fault conditions. The TPS65131-Q1 device is qualified for automotive applications, according to AEC-Q100 temperature grade 2. The electrical characteristics are tested over –40°C to 125°C device junction temperature. This, combined with lowest shutdown currents, small solution size, package with thermal pad, plus good efficiency and protection features, targets automotive and industrial applications.