TPS2051CDBVT Texas Instruments Switch (SOT23 (5-Pin)) In Stock
TPS2051CDBVT is a single-channel, current-limited USB power distribution switch from Texas Instruments. It features a 500mA current limit, 4.5V to 5.5V input range, and active-low enable control in a compact SOT-23 (5-pin) package. From $0.53, in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- TPS2051CDBVT Datasheet PDF
- Category
- Switch
- Price
- From $0.5276(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Single-channel USB power distribution switch with 500mA current limit for overcurrent protection
- Wide input voltage range of 4.5V to 5.5V, ideal for USB bus-powered applications
- Active-low enable pin for simple on/off control from host MCU or logic
- Compact SOT-23 (5-pin) package for space-constrained designs
- Thermal shutdown and reverse current protection ensure robust system reliability
Applications
The TPS2051CDBVT is widely used in USB port power management for notebooks, desktop PCs, and USB hubs where controlled power delivery to downstream devices is required. It is also suitable for battery-powered portable equipment such as handheld instruments and IoT nodes that need load switching with overcurrent protection. Additionally, it finds application in embedded systems and industrial controllers requiring reliable power distribution with fault detection.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | LOAD SWITCH |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 4.5V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| 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 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS2051CDBVT:
Texas Instruments Fixed, 1 Channel, PDSO5
Frequently Asked Questions
What is the current limit of the TPS2051CDBVT?
The TPS2051CDBVT provides a fixed current limit of 500mA, making it compliant with USB 2.0 power specifications. When the output current exceeds this threshold, the device enters current-limiting mode to protect both the host and the connected USB device.
What input voltage range does the TPS2051CDBVT support?
The TPS2051CDBVT operates over an input voltage range of 4.5V to 5.5V, which aligns precisely with the USB bus voltage specification of 5V ±10%. This makes it directly suitable for USB power distribution without any additional voltage regulation.
What package does the TPS2051CDBVT come in and why is it beneficial?
The TPS2051CDBVT is housed in a SOT-23 (5-pin) surface-mount package, which occupies minimal PCB area. This compact footprint is ideal for space-constrained applications such as USB hubs, laptops, and portable consumer electronics where board real estate is at a premium.
Can the TPS2051CDBVT be used as a replacement for similar load switches from other manufacturers?
Yes, the TPS2051CDBVT is pin-compatible with several equivalent USB power switches in the SOT-23-5 package. Common alternatives include the MIC2026 and AP2151. However, always verify the exact current limit, threshold voltages, and enable polarity before substituting to ensure full compatibility with your design requirements.
What protection features does the TPS2051CDBVT include?
The TPS2051CDBVT incorporates overcurrent protection with a 500mA current limit, thermal shutdown to prevent damage under excessive power dissipation, and reverse current blocking. These features collectively protect both the USB host controller and downstream devices from fault conditions.
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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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| 1+ | $1.2500 | $1.25 |
| 5+ | $1.0000 | $5.00 |
| 6+ | $0.9375 | $5.63 |
| 10+ | $0.8240 | $8.24 |
| 25+ | $0.7376 | $18.44 |
| 100+ | $0.5276 | $52.76 |
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