Specifications
| Type | Description |
|---|---|
| Part Number | TPS65131 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | VQFN-24 (RGE), 4.00 mm × 4.00 mm body |
| Component Type | Power_IC |
| Input Voltage Range | 2.7 to 5.5 V; recommended operating range at VIN and INN pins |
| Positive Boost Output Voltage Range | VIN + 0.5 V to 15 V; adjustable output voltage range for boost converter |
| Negative Inverting Output Voltage Range | -15 to -2 V; adjustable output voltage range for inverting converter |
| Positive Output Maximum Voltage | Up to 15 V; boost converter output |
| Negative Output Minimum Voltage | Down to -15 V; inverting buck-boost converter output |
| Positive Converter Efficiency | Up to 89%; V_POS boost converter |
| Negative Converter Efficiency | Up to 81%; V_NEG inverting buck-boost converter |
| Combined Efficiency | 85%; combined V_POS and V_NEG efficiency |
| Switching Frequency | Minimum 1.25 MHz; converter switching frequency stated for small inductors |
| Shutdown Current | 1 µA; feature summary |
| Shutdown Supply Current | 0.2 µA typ, 1.5 µA max; ENN = ENP = GND |
| Device Quiescent Current | 500 µA; device operating quiescent current stated in description |
| Quiescent Current at VIN | 300 µA typ, 500 µA max; VIN = 3.6 V, IPOS = INEG = 0, ENP = ENN = PSP = PSN = VIN, VPOS = 8 V, VNEG = -5 V |
| Quiescent Current at VPOS | 100 µA typ, 120 µA max; VIN = 3.6 V, IPOS = INEG = 0, ENP = ENN = PSP = PSN = VIN, VPOS = 8 V, VNEG = -5 V |
| Quiescent Current at VNEG | 100 µA typ, 120 µA max; VIN = 3.6 V, IPOS = INEG = 0, ENP = ENN = PSP = PSN = VIN, VPOS = 8 V, VNEG = -5 V |
| Reference Voltage | 1.2 V min, 1.213 V typ, 1.225 V max; IREF = 10 µA |
| Positive Feedback Regulation Voltage | 1.189 V min, 1.213 V typ, 1.237 V max; VIN = 2.7 V to 5.5 V |
| Negative Feedback Regulation Voltage | -0.024 V min, 0 V typ, 0.024 V max; VIN = 2.7 V to 5.5 V |
| Total Output DC Accuracy | 3%; DC-DC stage V_POS, V_NEG |
| Positive Feedback Input Bias Current | 50 nA; VFBP = VREF |
| Negative Feedback Input Bias Current | 50 nA; VFBN = 0.1 V |
| TPS65130 Inverter Switch Current Limit | 700 mA min, 800 mA typ, 900 mA max; 2.7 V < VIN < 5.5 V |
| TPS65131 Inverter Switch Current Limit | 1800 mA min, 1950 mA typ, 2200 mA max; VIN = 3.6 V |
| TPS65130 Boost Switch Current Limit | 700 mA min, 800 mA typ, 900 mA max; 2.7 V < VIN < 5.5 V, VPOS = 8 V |
| TPS65131 Boost Switch Current Limit | 1800 mA min, 1950 mA typ, 2200 mA max; VIN = 3.6 V, VPOS = 8 V |
| Inverter Switch On-Resistance | 440 mΩ typ, 620 mΩ max; VIN = 3.6 V |
| Inverter Switch On-Resistance | 330 mΩ typ, 530 mΩ max; VIN = 5 V |
| Boost Switch On-Resistance | 230 mΩ typ, 300 mΩ max; VPOS = 5 V |
| Boost Switch On-Resistance | 170 mΩ typ, 200 mΩ max; VPOS = 10 V |
| Enable High-Level Input Voltage | 1.4 V min; ENP, ENN, PSP, PSN pins |
| Enable Low-Level Input Voltage | 0.4 V max; ENP, ENN, PSP, PSN pins |
| Enable and Power-Save Input Current | 0.01 µA typ, 0.1 µA max; ENP, ENN, PSP, PSN = GND or VIN |
| BSW Output Resistance | 27 kΩ; control stage output resistance |
| Undervoltage Lockout Threshold | 2.1 V min, 2.35 V typ, 2.7 V max; VIN undervoltage lockout |
| Operating Free-Air Temperature Range | -40 to 85 °C; recommended operating conditions |
| Operating Junction Temperature Range | -40 to 125 °C; recommended operating conditions |
| Operating Virtual Junction Temperature | -40 to 150 °C; absolute maximum rating |
| Storage Temperature Range | -65 to 150 °C; absolute maximum rating |
| ESD Rating HBM | ±1000 V; human body model per ANSI/ESDA/JEDEC JS-001 |
| ESD Rating CDM | ±750 V; charged-device model per JEDEC JS-002 |
| Junction-to-Ambient Thermal Resistance | 34.1 °C/W; RGE VQFN-24 package |
| Junction-to-Case Top Thermal Resistance | 36.8 °C/W; RGE VQFN-24 package |
| Junction-to-Board Thermal Resistance | 12.2 °C/W; RGE VQFN-24 package |
| Junction-to-Top Characterization Parameter | 0.4 °C/W; RGE VQFN-24 package |
| Junction-to-Board Characterization Parameter | 12.3 °C/W; RGE VQFN-24 package |
| Junction-to-Case Bottom Thermal Resistance | 2.8 °C/W; RGE VQFN-24 package |
| VIN and INN Absolute Maximum Input Voltage | -0.3 to 6 V; voltage with respect to network ground terminal |
| VPOS Absolute Maximum Voltage | -0.3 to 17 V; voltage with respect to network ground terminal |
| VNEG Absolute Maximum Voltage | -17 V to VIN + 0.3 V; voltage with respect to network ground terminal |
| INP Absolute Maximum Input Voltage | -0.3 to 17 V; voltage with respect to network ground terminal |
| OUTN to INN Differential Voltage | -0.3 to 24 V; absolute maximum differential voltage between OUTN and INN pins |
| Datasheet Status | request_only |
Product Overview
The TPS65131 is a Texas Instruments dual-output DC-DC converter for Power_Management designs requiring both positive and negative regulated rails. The positive boost converter is adjustable from VIN + 0.5 V to 15 V, while the negative inverting converter is adjustable from -15 to -2 V. The recommended input range is 2.7 to 5.5 V at the VIN and INN pins.
Electrical performance includes up to 89% efficiency for the V_POS boost converter, up to 81% efficiency for the V_NEG inverting buck-boost converter, and 85% combined V_POS and V_NEG efficiency. The device uses a minimum 1.25 MHz switching frequency, supporting small inductor implementations. Quiescent and shutdown conditions include 500 µA device operating quiescent current and 0.2 µA typical shutdown supply current when ENN and ENP are grounded.
The device is supplied in a VQFN-24 (RGE), 4.00 mm × 4.00 mm package. Operating limits include -40 to 85 °C free-air temperature and -40 to 125 °C junction temperature. Thermal data for the RGE package includes 34.1 °C/W junction-to-ambient resistance and 2.8 °C/W junction-to-case bottom resistance.
Key Features
- 2.7 to 5.5 V recommended input range
- Positive boost output adjustable to 15 V
- Negative inverting output adjustable down to -15 V
- Up to 89% V_POS boost converter efficiency
- Up to 81% V_NEG inverting converter efficiency
- 85% combined positive and negative converter efficiency
- Minimum 1.25 MHz switching frequency
- 0.2 µA typical shutdown supply current
- 1.213 V typical reference voltage
- 3% total output DC accuracy
- -40 to 85 °C free-air operation
- VQFN-24 RGE 4.00 mm × 4.00 mm package
Typical Applications
- Positive and negative supply rails
- Dual-output power management circuits
- Battery-input converter designs
- Compact VQFN power assemblies
- Boost and inverting converter stages
- Systems requiring ± rail generation
Procurement Notes
When requesting a quote for TPS65131, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What input voltage range does the TPS65131 support?
The TPS65131 has a recommended operating input voltage range of 2.7 to 5.5 V at the VIN and INN pins, according to the extracted datasheet operating conditions.
What output voltages can the TPS65131 generate?
The positive boost converter output is adjustable from VIN + 0.5 V to 15 V. The negative inverting converter output is adjustable from -15 to -2 V, with datasheet limits noting up to 15 V and down to -15 V.
What package is used for the TPS65131?
The TPS65131 is specified in a VQFN-24 RGE package with a 4.00 mm × 4.00 mm body. Thermal data for this package includes 34.1 °C/W junction-to-ambient resistance.
What are the efficiency specifications for the TPS65131?
The extracted facts list up to 89% efficiency for the V_POS boost converter, up to 81% for the V_NEG inverting buck-boost converter, and 85% combined V_POS and V_NEG efficiency.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 25, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.