XPS63900DSKT Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock
Texas Instruments XPS63900DSKT is a 400 mA buck-boost converter with ultra-low 200 nA quiescent current, accepting 1.8 V to 5.5 V input with dynamic voltage scaling and input current limiting. It delivers regulated output across battery discharge in a 10-pin SON package for portable applications. Available from stock worldwide with RoHS-compliant lead-free construction.
- Manufacturer
- Texas Instruments
- Package
- Small Outline No-lead
- Pin Count
- 11
- Lifecycle
- OBSOLETE
- Datasheet
- XPS63900DSKT 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
- 200 nA quiescent current in power-save mode extends single-cell Li-ion battery run-time by weeks compared to conventional LDO regulators
- Buck-boost topology maintains regulated output from 1.8 V to 5.5 V input, covering the full Li-ion discharge curve without dead-band
- Dynamic voltage scaling (DVS) allows the host MCU to adjust output voltage in real time, enabling processor frequency and voltage co-optimization for 30-50% active power reduction
Applications
The XPS63900DSKT suits wearable fitness trackers, Bluetooth Low Energy beacons, and IoT sensor nodes powered by single-cell Li-ion or Li-polymer batteries where quiescent current below 1 µA is critical for multi-year battery life. Its input current limiting simplifies USB charging coexistence and protects thin-film batteries with limited peak current capability.
Specifications
| Date Of Intro | 2020-05-01 |
| YTEOL | 0 |
| 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 | 3V |
| JESD-30 Code | S-PDSO-N10 |
| Number of Functions | 1 |
| Output Current-Max | 0.4A |
| Output Voltage-Max | 5V |
| Output Voltage-Min | 1.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC10,.1,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Supply Current-Max (Isup) | 0.00001mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Package | Small Outline No-lead |
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 XPS63900DSKT:
Frequently Asked Questions
How low is the quiescent current of XPS63900DSKT and why does it matter for coin-cell battery life?
The XPS63900DSKT draws only 200 nA quiescent current in power-save mode. A 220 mAh CR2032 coin cell powering only this converter in light-load sleep could theoretically last over 125 years from quiescent drain alone, making it negligible and allowing the application load to dominate the battery life budget.
What input voltage range does XPS63900DSKT support and how does the buck-boost topology handle the Li-ion discharge curve?
The device accepts 1.8 V to 5.5 V input. A standard Li-ion cell discharges from 4.2 V down to 2.7 V, which crosses the typical 3.3 V regulated output voltage. The buck-boost topology automatically transitions between buck and boost modes at this crossover, maintaining a stable 3.3 V output without interruption across the full 4.2 V to 2.7 V discharge range.
How does dynamic voltage scaling on XPS63900DSKT reduce system power consumption in an IoT application?
Dynamic voltage scaling allows the host MCU to command output voltages between 1.8 V and 3.3 V via an I2C or resistor-programmable interface. Running the system at 1.8 V instead of 3.3 V reduces dynamic power by up to 70% in CMOS logic, since active power scales with the square of supply voltage, achieving significant energy savings during burst transmit cycles.
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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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