TPS7H2221MDCKTSEP Texas Instruments Integrated Circuit (SOT23 (6-Pin)) In Stock
Texas Instruments TPS7H2221MDCKTSEP is a radiation-tolerant single-channel load switch IC supporting 1.6 V to 5.5 V input voltage and up to 1.25 A load current in a compact SOT-23-6 package. Designed for space and harsh-environment applications with adjustable threshold control. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- TPS7H2221MDCKTSEP Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Radiation-tolerant design rated for space and high-reliability environments with SEE and TID performance
- Wide input voltage range of 1.6 V to 5.5 V supports multiple logic rails from single-supply embedded systems
- 1.25 A continuous load current capability with adjustable enable threshold in a 6-pin SOT-23 package
Applications
TPS7H2221MDCKTSEP is designed for power distribution management in radiation-exposed environments such as satellite payloads, deep-space instruments, and military avionics. Its load switch function allows system controllers to sequence and isolate power rails efficiently, reducing inrush current and protecting downstream circuitry. The compact SOT-23-6 footprint suits high-density space-grade PCBs where board area and weight are tightly constrained.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | Load switch |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 1.6V |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP6,.08 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.6V |
| Supply Voltage-Nom (Vsup) | 1.8V |
| Surface Mount | YES |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +0.36V |
| Total Dose | 20k Rad(Si) V |
| Package | SOT23 (6-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does TPS7H2221MDCKTSEP support, and which power rail topologies does it fit?
The TPS7H2221MDCKTSEP operates from 1.6 V to 5.5 V input, making it compatible with 1.8 V, 2.5 V, 3.3 V, and 5 V supply rails commonly used in embedded systems and space electronics. A single device can manage power switching across these voltage levels, simplifying multi-rail power sequencing designs without needing separate load switch ICs per rail.
How much continuous current can TPS7H2221MDCKTSEP handle, and what thermal considerations apply in a 6-pin SOT-23 package?
The device supports up to 1.25 A continuous load current. In the 6-pin SOT-23 package, thermal dissipation is limited by the small footprint, so PCB copper pours and thermal vias are recommended when operating near the 1.25 A limit. For junction temperature management, keep power dissipation below the package's rated thermal impedance to avoid derating at elevated ambient temperatures encountered in space or avionics enclosures.
Why would a satellite power designer choose TPS7H2221MDCKTSEP over a standard commercial load switch?
Standard commercial load switches are not rated for the ionizing radiation found in low-earth or geosynchronous orbits. TPS7H2221MDCKTSEP is specifically qualified to withstand total ionizing dose (TID) and single-event effects (SEE), ensuring reliable operation over a mission lifetime of several years. Its 1.6 V to 5.5 V range and adjustable threshold further reduce the number of discrete power management components needed in a space-grade power distribution unit.
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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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