PTSM82903SISB2R Texas Instruments Power Supply (Other) In Stock
The PTSM82903SISB2R is a 3-V to 17-V, 3-A synchronous buck converter module from Texas Instruments with integrated inductor, delivering high efficiency and ultra-low quiescent current for space-constrained power designs. Available from stock worldwide.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 11
- Lifecycle
- OBSOLETE
- Datasheet
- PTSM82903SISB2R Datasheet PDF
- Category
- Power Supply
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Integrated inductor reduces BOM and saves PCB space in compact designs
- Ultra-low quiescent current extends battery life in always-on applications
- Wide 3 V to 17 V input range supports diverse power sources including 5 V, 9 V, and 12 V rails
- 3 A output current with high-efficiency PWM control minimizes heat dissipation
Applications
The PTSM82903SISB2R suits portable industrial instruments, IoT edge nodes, and wearable devices where board space is limited and battery runtime is critical. Its 3 V to 17 V input range makes it ideal for systems powered by single-cell Li-ion, 12 V adapters, or automotive-grade 12 V rails. The integrated inductor simplifies layout and speeds prototyping of DC/DC conversion stages in telecom and embedded computing equipment.
Specifications
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT/VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 17V |
| Input Voltage-Min | 3V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-XDMA-N11 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 3A |
| Output Voltage-Max | 5.5V |
| Output Voltage-Min | 0.4V |
| Output Voltage-Nom | 1.2V |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | SOLCC11(UNSPEC) |
| Package Shape | RECTANGULAR |
| Package Style | MICROELECTRONIC ASSEMBLY |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 2500kHz |
| Technology | HYBRID |
| Terminal Form | NO LEAD |
| Terminal Position | DUAL |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| 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 supported by PTSM82903SISB2R?
PTSM82903SISB2R supports an input voltage range of 3 V to 17 V, with a nominal design point at 12 V. This wide range allows the module to operate from single-cell Li-ion batteries near 3.7 V all the way up to standard 12 V industrial rails, making it versatile for both battery-powered and wall-powered applications.
How does the integrated inductor in PTSM82903SISB2R benefit PCB layout?
The integrated inductor eliminates the need for an external magnetic component, reducing the total footprint to the R-XDMA-N11 package outline and cutting BOM count by at least 1 component. This simplifies PCB layout, lowers assembly cost, and shortens time-to-market for designs requiring a compact 3 A buck converter with minimal external components.
Which industrial or IoT designs benefit most from PTSM82903SISB2R's low quiescent current?
Battery-powered IoT sensors, always-on industrial monitoring nodes, and portable test instruments benefit most because the low IQ reduces standby power drain at light loads below 10 mA output. Systems that spend most of their time in sleep modes can extend battery life significantly when the converter draws only microamp-level quiescent current between active cycles.
What is the maximum continuous output current of PTSM82903SISB2R?
PTSM82903SISB2R delivers up to 3 A continuous output current. This rating supports powering FPGAs, microcontrollers, DSPs, and multiple peripheral loads from a single module, covering the majority of embedded system core-rail requirements without requiring parallel or stacked converters.
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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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