XPS628610YCHR Texas Instruments Integrated Circuit (BGA) In Stock
XPS628610YCHR is a 1 A ultra-low quiescent current step-down DC-DC converter accepting 1.8 V to 5.5 V input with I2C and VSEL programmable output in a tiny 8-ball BGA package. It features voltage-mode PWM control and supports a 1.1 V nominal output for IoT and wearable power rails. In stock worldwide with competitive pricing and fast shipping.
- Manufacturer
- Texas Instruments
- Package
- BGA
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- XPS628610YCHR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low Iq PWM step-down converter delivering up to 1 A output from a 1.8 V to 5.5 V input rail
- I2C and VSEL dual interface for dynamic output voltage programming in IoT and wearable designs
- Tiny 8-ball BGA package enables minimal PCB footprint for space-constrained portable applications
Applications
XPS628610YCHR is designed for battery-powered IoT nodes, wearables, and wireless sensor modules where minimizing quiescent current extends battery life. Its 1.8 V to 5.5 V input range covers single-cell Li-ion, alkaline AA, and regulated bus sources, while the I2C interface allows the host MCU to dynamically adjust the output voltage. The 1 A output current and PFM light-load mode make it suitable for microcontroller core and peripheral power rails in space-constrained designs.
Specifications
| Date Of Intro | 2020-04-22 |
| YTEOL | 0 |
| Additional Feature | ALSO HAS 1.1 V O/P NOM VOLTAGE AND PFM AS CONTROL TECH |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 1.8V |
| Input Voltage-Nom | 3.6V |
| JESD-30 Code | R-PBGA-B8 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Output Voltage-Max | 1.98V |
| Output Voltage-Min | 0.4V |
| Output Voltage-Nom | 0.6V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | GRID ARRAY, VERY THIN PROFILE, FINE PITCH |
| Supply Voltage-Nom (Vsup) | 3.6V |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 4000kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | BALL |
| Terminal Pitch | 0.35mm |
| Terminal Position | BOTTOM |
| Package | BGA |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for XPS628610YCHR:
Switching Regulator, Current-mode, 6A, 2400kHz Switching Freq-Max, BICMOS, PBGA15
Frequently Asked Questions
What is the input voltage range of XPS628610YCHR and which battery chemistries does it support?
XPS628610YCHR accepts input voltages from 1.8 V to 5.5 V, covering single-cell Li-ion (2.5 V to 4.2 V), USB 5 V, and dual-AA alkaline (2.0 V to 3.2 V) sources. This wide input range allows a single converter design to function across diverse power architectures in IoT gateways, fitness trackers, and smart sensors without redesigning the power stage.
How does the I2C interface on XPS628610YCHR simplify output voltage adjustment in embedded systems?
The I2C interface lets the host MCU reprogram the output voltage at runtime, eliminating the need for multiple fixed-voltage regulators. Combined with the VSEL pin for a secondary preset, designers can switch between two voltage levels, such as 1.0 V for low-power sleep and 1.8 V for active mode, saving power and reducing BOM count in wearable designs.
What PCB area does the XPS628610YCHR 8-ball BGA package require compared to conventional SOT-23 step-down regulators?
The 8-ball BGA package occupies approximately 1.5 mm x 1.5 mm footprint, significantly smaller than standard SOT-23-5 (2.9 mm x 1.6 mm) or SOT-563 packages. This reduction in PCB area is critical for ultra-compact wearables, hearing aids, and coin-cell-powered sensor nodes where every square millimeter of board space is at a premium.
When should engineers choose XPS628610YCHR over a conventional LDO for a 1 A power rail in a portable device?
When the input-to-output differential exceeds 0.5 V and load current approaches 1 A, a buck converter like XPS628610YCHR typically achieves above 85% efficiency versus below 70% for an LDO. This efficiency advantage translates directly to longer battery runtime and lower junction temperature at 1 A continuous load, making it the preferred choice for processor core supplies in IoT edge devices.
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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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