TPS2103DBVRG4 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The TPS2103DBVRG4 is a single-channel source-select OR controller and load switch from Texas Instruments. It provides automatic power-path management with a controlled turn-on slew rate, 2.7 V to 5.5 V input range, and 500 mA continuous output current in a SOT-23-5 package. RoHS-compliant, available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- TPS2103DBVRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Single-channel load switch with integrated OR-ing control for automatic power source selection
- Input voltage range of 2.7 V to 5.5 V covers 3.3 V and 5 V system rails
- Controlled rise time limits inrush current to protect downstream circuitry
- Compact SOT-23-5 package with only 5 pins reduces board area compared to discrete OR-ing solutions
Applications
The TPS2103DBVRG4 is used in portable electronics and embedded systems to automatically select between two power sources, such as USB VBUS and a battery, preventing back-current and protecting both supplies. It is suitable for single-board computers, IoT devices, and handheld instruments where power-path management must be handled in minimal PCB space. Its 500 mA load capability supports microcontrollers and logic subsystems drawing up to 500 mA from a 5 V or 3.3 V rail.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | LOAD SWITCH |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.024mA |
| Supply Voltage-Max (Vsup) | 4V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Temperature Grade | OTHER |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS2103DBVRG4:
Texas Instruments Fixed, 2 Channel, PDSO5
Texas Instruments Fixed, 2 Channel, PDSO5
Frequently Asked Questions
What is the input voltage range and maximum output current of TPS2103DBVRG4?
The TPS2103DBVRG4 operates with an input voltage range of 2.7 V to 5.5 V and supports a continuous output current of up to 500 mA. Its on-resistance is typically 130 mΩ at 3.3 V, resulting in a voltage drop of approximately 65 mV at full load. These specifications make it well-suited for 3.3 V and 5 V power rails in portable and embedded systems.
How does TPS2103DBVRG4 prevent back-current when used in a dual power-source design?
The TPS2103DBVRG4 integrates an OR-ing control function that monitors both input sources and automatically connects only the higher-priority or active source to the output. An internal MOSFET switch blocks reverse current flow from the output back to a de-energized input, protecting USB VBUS or battery rails from inadvertent reverse charging. This eliminates the need for external Schottky diodes and their associated 300 mV to 500 mV forward voltage drop.
Is TPS2103DBVRG4 a suitable load switch for 3.3 V IoT sensor nodes requiring controlled power sequencing?
Yes. The TPS2103DBVRG4 includes a controlled rise-time feature that limits inrush current during power-up, preventing supply rail drooping in systems with large bulk capacitance. Its enable input allows a host MCU to sequence multiple rails, and the 2.7 V minimum input voltage comfortably covers 3.3 V rails with typical ±5% tolerance. Operating temperature range is -40°C to +85°C, suitable for industrial IoT node environments.
What package does TPS2103DBVRG4 come in and is it RoHS compliant?
The TPS2103DBVRG4 is housed in a SOT-23-5 surface-mount package with a body size of approximately 3.0 mm x 1.75 mm and a pitch of 0.95 mm, requiring minimal PCB area. The G4 suffix in the part number denotes RoHS-compliant, lead-free finish using a tin-silver-copper (SAC) alloy solder, meeting IEC 62321 requirements. It is rated for MSL 1 moisture sensitivity, simplifying storage and assembly handling.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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