TPS62221DDCTG4 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The TPS62221DDCTG4 is a single-channel step-down (buck) switching regulator from Texas Instruments, delivering up to 400mA output current with input voltage range of 2.5V to 6V and PWM/PFM control modes. Integrated high-efficiency power conversion in a compact 5-pin SOT-23 package with RoHS compliance. Available with worldwide stock and competitive pricing for portable power designs.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- TPS62221DDCTG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 400mA output current capability from 2.5V to 6V input range covers Li-Ion battery and USB power sources for portable devices
- Dual-mode PWM and PFM operation automatically optimizes efficiency across the full load range from light to heavy loads
- Voltage-mode PWM control with fast transient response ensures stable output regulation in dynamic load applications
- Ultra-compact 5-pin SOT-23 package (JEDEC R-PDSO-G5) minimizes PCB area for space-constrained wearables and IoT modules
Applications
The TPS62221DDCTG4 is designed for battery-powered portable applications including smartphones, tablets, wearables, and IoT sensor nodes requiring efficient 3.3V or lower voltage rails from Li-Ion or Li-polymer batteries. Its 2.5V to 6V input range and PFM/PWM dual-mode operation maximize battery life by maintaining high efficiency from light to heavy load conditions. The device is also suitable for point-of-load regulation in USB-powered accessories, wireless modules, and embedded systems requiring a compact, single-inductor step-down solution.
Specifications
| YTEOL | 0 |
| Additional Feature | PFM MODE IS ALSO AVAILABLE |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 2.5V |
| Input Voltage-Nom | 3.6V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 0.4A |
| Output Voltage-Max | 1.545V |
| Output Voltage-Min | 1.455V |
| Output Voltage-Nom | 1.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1850kHz |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| 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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range and maximum output current of the TPS62221DDCTG4?
The TPS62221DDCTG4 accepts input voltages from 2.5V to 6V with a nominal input of 3.6V, and delivers up to 400mA of output current. This range is compatible with single-cell Li-Ion batteries (2.7V to 4.2V) and regulated 5V supplies, making it ideal for portable devices, USB-powered systems, and IoT applications.
What control modes does the TPS62221DDCTG4 support and how do they affect efficiency?
The TPS62221DDCTG4 supports both PWM (pulse width modulation) voltage-mode control and PFM (pulse frequency modulation) mode. PWM mode provides stable switching frequency for low-ripple applications under heavy loads, while PFM mode reduces switching losses at light loads to maintain high efficiency. The automatic transition between modes optimizes battery life across varying power demands.
What package does the TPS62221DDCTG4 use and what are its dimensions?
The TPS62221DDCTG4 is packaged in a 5-pin SOT-23 small outline transistor package (JEDEC R-PDSO-G5), one of the smallest standard IC packages available. The SOT-23-5 package measures approximately 2.9mm x 1.6mm, making it suitable for ultra-compact PCB designs in wearables, hearing aids, and miniaturized IoT modules where board space is critical.
Is the TPS62221DDCTG4 RoHS compliant and what does the G4 suffix indicate?
Yes, the TPS62221DDCTG4 is fully RoHS compliant and lead-free as indicated by the JESD-609 e4 code. The G4 suffix in Texas Instruments' naming convention denotes that the device is green (halogen-free) and uses Pb-free solder, meeting global environmental regulations for electronics manufacturing including EU RoHS and China RoHS directives.
What are typical applications for the TPS62221DDCTG4?
The TPS62221DDCTG4 is commonly used in single-cell Li-Ion battery-powered products such as smartphones, portable medical devices, wearable electronics, wireless sensor nodes, and Bluetooth modules. It efficiently converts battery voltage down to core logic voltages (1.0V to 3.3V) while providing up to 400mA for digital processors, RF transceivers, and peripheral ICs in compact, low-power system designs.
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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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