TPS2042BDGN Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TPS2042BDGN is a dual-channel high-side power distribution switch with 49mΩ on-resistance, supporting 2.7V to 5.5V input with undervoltage lockout protection. From $0.35, in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TPS2042BDGN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3488(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
- Dual-channel high-side load switch with only 49mΩ typical on-resistance for minimal power loss
- Wide input voltage range of 2.7V to 5.5V suits both 3.3V and 5V system rails
- Integrated undervoltage lockout (UVLO) protects downstream loads during power-up transients
- Compact 8-pin MSOP package enables high-density PCB designs in space-constrained applications
Applications
The TPS2042BDGN is widely used in portable electronics and battery-powered devices where two independent power rails must be switched with low losses. It is ideal for USB power management, hot-swap protection circuits, and load switching in embedded systems such as industrial controllers and IoT nodes. Its integrated UVLO and overcurrent protection make it a reliable choice for protecting sensitive downstream components in consumer and telecom equipment.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | UNDERVOLTAGE LOCKOUT |
| Adjustable Threshold | NO |
| Analog IC - Other Type | LOAD SWITCH |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.7V |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Channels | 2 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.09mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
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 TPS2042BDGN:
Texas Instruments Fixed, 2 Channel, PDSO8
Frequently Asked Questions
What is the maximum continuous current the TPS2042BDGN can handle per channel?
Each channel of the TPS2042BDGN supports a maximum continuous load current of 1A. The 49mΩ typical on-resistance keeps conduction losses low at this current level, making it suitable for powering microcontrollers, FPGAs, and peripheral ICs in 3.3V or 5V systems.
What input voltage range does the TPS2042BDGN support?
The TPS2042BDGN operates over an input voltage range of 2.7V to 5.5V, covering both 3.3V and 5V power rails. The integrated undervoltage lockout ensures the switch remains off until the supply reaches a stable operating level, preventing incorrect operation during power-up.
What are typical applications for the TPS2042BDGN?
Typical applications include USB bus power switching, battery-powered portable devices, hot-swap protection, and dual-rail load management in IoT and embedded systems. Its dual-channel design allows independent control of two separate power paths from a single compact 8-pin MSOP package.
Are there pin-compatible or functional alternatives to the TPS2042BDGN?
Functional alternatives include the TPS2042B in other packages and similar dual load switches such as the TPS2044B (quad channel) or third-party equivalents from ON Semiconductor and Diodes Inc. Always verify the enable logic polarity, on-resistance, and current rating before substituting.
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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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