XC6229H3311R-G Torex Integrated Circuit (Other) In Stock
Torex XC6229H3311R-G is a 300 mA ultra-small LDO linear regulator with 3.3 V output, 0.16 V typical dropout, and built-in inrush current protection in a 4-ball WLCSP package. Input voltage range is 3.8 V to 5.5 V with operating temperature up to 125 °C. Available globally from authorized distributors.
- Manufacturer
- Torex
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- XC6229H3311R-G Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 300 mA output current with only 0.16 V typical dropout voltage maximizes headroom in battery-powered designs
- Built-in inrush current protection prevents start-up transient damage to downstream components
- 4-ball ultra-compact WLCSP package occupies minimal board area for space-constrained IoT and wearable applications
- Input voltage range 3.8 V to 5.5 V with 125 °C maximum junction temperature for automotive-adjacent applications
- Load regulation of 0.045% maximum ensures stable 3.3 V output across varying load conditions
Applications
The XC6229H3311R-G is designed for power management in battery-operated IoT devices, wearables, and portable consumer electronics where the small WLCSP footprint and 300 mA output capacity provide an efficient 3.3 V supply from a 1S Li-ion or 3xAA battery stack. Its built-in inrush current protection makes it suitable for powering microcontrollers, RF modules, and sensor arrays that draw surge current at startup. The 125 °C maximum junction temperature extends its applicability to light industrial and automotive auxiliary electronics.
Specifications
| Factory Lead Time | 12Weeks |
| YTEOL | 10 |
| Dropout Voltage1-Max | 0.26V |
| Dropout Voltage1-Nom | 0.16V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 3.8V |
| JESD-30 Code | S-XBGA-B4 |
| Load Regulation-Max | 0.045% |
| Number of Functions | 1 |
| Operating Temperature TJ-Max | 125°C |
| Output Current1-Max | 0.3A |
| Output Voltage1-Max | 3.333V |
| Output Voltage1-Min | 3.267V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | UNSPECIFIED |
| Package Shape | SQUARE |
| Package Style | GRID ARRAY, VERY THIN PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Terminal Finish | Nickel/Silver/Gold (Ni/Ag/Au) |
| Terminal Form | BALL |
| Terminal Pitch | 0.4mm |
| Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | 10 |
| Voltage Tolerance-Max | 1% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Japan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range of the XC6229H3311R-G and which battery chemistries are compatible?
The XC6229H3311R-G operates from 3.8 V to 5.5 V input. This range makes it compatible with a single-cell Li-ion battery (nominally 3.7 V, up to 4.2 V fully charged), a regulated 5 V USB supply, or a 3xAA alkaline pack when near full charge. The 3.8 V minimum input constrains direct use from depleted single-cell Li-ion batteries near their 3.0 V cutoff voltage, which should be considered in battery life calculations.
How does the built-in inrush current protection benefit designs with capacitive loads on the XC6229H3311R-G?
When large output capacitors or capacitive loads power up, they demand a very high instantaneous current spike that can collapse the input voltage or damage the LDO. The XC6229H3311R-G's built-in inrush current protection limits this startup transient, allowing designers to use output capacitors up to several microfarads without stressing the regulator or upstream power source. This is particularly valuable in wireless sensor nodes where 10 µF to 100 µF bulk capacitors smooth RF transmit bursts.
How small is the XC6229H3311R-G package and how does it compare to SOT-23-5 LDO packages?
The XC6229H3311R-G uses a 4-ball WLCSP (wafer-level chip scale package) that measures approximately 0.8 mm × 0.8 mm, which is significantly smaller than a standard SOT-23-5 package at roughly 2.9 mm × 1.6 mm. This 75% reduction in footprint area is critical for wearable devices and hearing aids where every square millimeter of board space is at a premium. The WLCSP also eliminates bond wire inductance, improving high-frequency load transient response.
What load regulation performance does the XC6229H3311R-G provide for noise-sensitive analog circuits?
The XC6229H3311R-G achieves a maximum load regulation of 0.045%, meaning the output voltage varies less than 0.045% from no load to full load at 300 mA. For a 3.3 V output, this equates to less than 1.5 mV of output voltage shift across the full load range. This level of regulation is adequate for powering microcontrollers, ADCs, and precision sensors where supply variation under 5 mV is typically acceptable without additional filtering.
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