TPS65131 Series

Split-Rail Converter with Dual, Positive and Negative Outputs (750mA typ)

Catalog(3 parts)

Part	Main Purpose	Regulator Topology	Current - Output▲▼	Supplied Contents	Voltage - Output▲▼	Voltage - Input▲▼	Voltage - Input▲▼	Utilized IC / Part	Outputs and Type▲▼	Outputs and Type	Board Type	Mounting Type	Voltage - Output (Min/Fixed)▲▼	Voltage - Output (Min/Fixed)▲▼	Voltage - Input (Max)▲▼	Voltage - Output (Max)▲▼	Voltage - Output (Max)▲▼	Output Configuration	Number of Outputs▲▼	Topology	Voltage - Input (Min)▲▼	Function	Package / Case	Output Type	Frequency - Switching▲▼	Supplier Device Package	Operating Temperature▲▼	Operating Temperature▲▼	Grade	Qualification
Texas Instruments TPS65131EVM-839 TPS65131 - DC/DC, Positive and Negative 2, Non-Isolated Outputs Evaluation Board	DC/DC, Positive and Negative	Boost	0.20000000298023224 A, 0.4000000059604645 A	Board(s)	-12 V, 12 V	3.5999999046325684 V	3 V	TPS65131	2 ul	Non-Isolated	Fully Populated
Texas Instruments TPS65131RGETG4 Boost, Buck-Boost Switching Regulator IC Positive and Negative (Dual Rail) Adjustable 3.2V, -2V 2 Output 1.8A (Switch) 24-VFQFN Exposed Pad			1.7999999523162842 A									Surface Mount	3.200000047683716 V	-2 V	5.5 V	-15 V	15 V	Positive and Negative (Dual Rail)	2 ul	Boost, Buck-Boost	2.700000047683716 V	Step-Up, Step-Up/Step-Down	24-VFQFN Exposed Pad	Adjustable	1380000 Hz	24-VQFN (4x4)	85 °C	-40 °C
Texas Instruments TPS65131TRGERQ1 Boost, Buck-Boost Switching Regulator IC Positive and Negative (Dual Rail) Adjustable 3.2V, -2V 2 Output 1.7A (Switch) 24-VFQFN Exposed Pad			1.7000000476837158 A									Surface Mount	3.200000047683716 V	-2 V	5.5 V	-15 V	15 V	Positive and Negative (Dual Rail)	2 ul	Boost, Buck-Boost	2.700000047683716 V	Step-Up, Step-Up/Step-Down	24-VFQFN Exposed Pad	Adjustable	1380000 Hz	24-VQFN (4x4)	105 °C	-40 °C	Automotive	AEC-Q100

Key Features

• Input voltage range: 2.7-V to 5.5-VVPOSpositive boost converter outputAdjustable output: up to 15 VTwo switch current limit options: 0.8 A and 2 AConversion efficiency: up to 89%VNEGnegative inverting buck-boost converter outputAdjustable output: down to –15 VTwo switch current limit options: 0.8 A and 2 AConversion efficiency: up to 81%Control output for external P-channel FET supports complete disconnection from battery1-µA shutdown currentIndividual enable inputs for flexible output sequencingProtection featuresOvervoltage protection at VPOSand VNEGInput undervoltage lockoutThermal shutdown protection4-mm × 4-mm VQFN-24 package (RGE)Input voltage range: 2.7-V to 5.5-VVPOSpositive boost converter outputAdjustable output: up to 15 VTwo switch current limit options: 0.8 A and 2 AConversion efficiency: up to 89%VNEGnegative inverting buck-boost converter outputAdjustable output: down to –15 VTwo switch current limit options: 0.8 A and 2 AConversion efficiency: up to 81%Control output for external P-channel FET supports complete disconnection from battery1-µA shutdown currentIndividual enable inputs for flexible output sequencingProtection featuresOvervoltage protection at VPOSand VNEGInput undervoltage lockoutThermal shutdown protection4-mm × 4-mm VQFN-24 package (RGE)

Description

The TPS6513x device is a dual-output DC-DC converter supply that generates a positive output up to 15 V and a negative output down to –15 V. The converter maintains low output voltage ripple. Typically, the maximum output currents are in the 200-mA to 500-mA range, depending on input voltage to output voltage ratio and the current limit option. The combined (VPOSand VNEG) efficiency reaches 85% to keep systems cool or achieve a longer battery-on-time. The input voltage range of 2.7 V to 5.5 V allows the devices to be powered from batteries or from fixed 3.3-V or 5-V rails. The converter operates with a fixed frequency PWM control topology and, when operating in power-save mode, uses a pulse-skipping mode at light-load currents. It operates with only 500-µA device quiescent current. Independent enable pins allow flexible power-up and power-down sequencing for both outputs. The positive and negative outputs operate independently, allowing for non-symmetrical output voltages and currents. The converter has an internal current limit, overvoltage protection, and a thermal shutdown for highest reliability under fault conditions. The converter is available in a 4-mm × 4-mm VQFN-24 package. The solution size is small with a minimum switching frequency of 1.25 MHz for smaller inductors and few other external components required. The TPS6513x device is a dual-output DC-DC converter supply that generates a positive output up to 15 V and a negative output down to –15 V. The converter maintains low output voltage ripple. Typically, the maximum output currents are in the 200-mA to 500-mA range, depending on input voltage to output voltage ratio and the current limit option. The combined (VPOSand VNEG) efficiency reaches 85% to keep systems cool or achieve a longer battery-on-time. The input voltage range of 2.7 V to 5.5 V allows the devices to be powered from batteries or from fixed 3.3-V or 5-V rails. The converter operates with a fixed frequency PWM control topology and, when operating in power-save mode, uses a pulse-skipping mode at light-load currents. It operates with only 500-µA device quiescent current. Independent enable pins allow flexible power-up and power-down sequencing for both outputs. The positive and negative outputs operate independently, allowing for non-symmetrical output voltages and currents. The converter has an internal current limit, overvoltage protection, and a thermal shutdown for highest reliability under fault conditions. The converter is available in a 4-mm × 4-mm VQFN-24 package. The solution size is small with a minimum switching frequency of 1.25 MHz for smaller inductors and few other external components required.