TPSM828221SILR Texas Instruments Integrated Circuit (Other) In Stock
The TPSM828221SILR is a current-mode PWM switching regulator module from Texas Instruments with a built-in inductor, operating from a 2.4 V to 5.5 V input. It delivers a regulated output in a compact 10-pin DMA LGA module package, simplifying power supply design. Available in reel packaging with worldwide in-stock distribution.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- TPSM828221SILR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.8956(MOQ 100)
- 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 in a compact 10-pin LGA module, eliminating the largest external passive and shrinking power supply footprint
- Current-mode PWM control with 2.4 V to 5.5 V input range for direct powering from USB, Li-ion, or 3.3 V/5 V rails
- Built-in compensation and protection simplify design and reduce time-to-market for point-of-load power supplies
Applications
The TPSM828221SILR is ideal for point-of-load power conversion in space-constrained applications such as wearables, IoT sensor nodes, and portable medical devices where board real estate is at a premium. Its integrated inductor and built-in current-mode control eliminate the need for a separate inductor, reducing component count by at least 5 to 7 parts compared to discrete switching regulator solutions. The 2.4 V to 5.5 V input range allows direct operation from a single-cell Li-ion battery (2.8 V to 4.2 V) or a regulated 5 V USB supply without additional conversion stages.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR WITH BUILT IN INDUCTOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.4V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | R-XDMA-N10 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 2A |
| Output Voltage-Max | 4V |
| Output Voltage-Min | 0.6V |
| Output Voltage-Nom | 1.2V |
| Package Body Material | UNSPECIFIED |
| Package Shape | RECTANGULAR |
| Package Style | MICROELECTRONIC ASSEMBLY |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 4000kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the integrated inductor in TPSM828221SILR mean for PCB layout complexity compared to a discrete buck converter?
The TPSM828221SILR includes the inductor inside the LGA module package, which removes the largest and most layout-sensitive component from the PCB. A discrete buck converter typically requires a 1 µH to 4.7 µH power inductor occupying 4 mm × 4 mm or more of board area in addition to the controller IC, whereas TPSM828221SILR consolidates both into a single 10-pin footprint, reducing layout-sensitive switching node area and simplifying EMI management.
Can TPSM828221SILR be powered directly from a single-cell Li-ion battery throughout its full discharge cycle?
Yes, the TPSM828221SILR operates from a 2.4 V to 5.5 V input range, which fully spans the discharge range of a single-cell Li-ion battery (typically 2.8 V fully discharged to 4.2 V fully charged). The device maintains regulated output operation through the entire battery life cycle without requiring a boost pre-regulator, enabling a simpler 2-component power path (battery + module) in portable IoT and wearable designs targeting over 200 hours of operation per charge.
How does TPSM828221SILR's current-mode PWM control benefit designs with rapidly changing load currents?
Current-mode PWM control samples the inductor current each switching cycle and directly uses it as an inner feedback variable, which improves transient response speed compared to voltage-mode control. In applications with load steps of 50 mA to 200 mA occurring within a few microseconds — such as microcontroller wake-up events or RF transmit bursts — current-mode control restores the output voltage faster (within 2 to 5 switching cycles) because it inherently limits peak inductor current and adjusts duty cycle without waiting for voltage error to propagate through a slower outer loop.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $2.2086 | $220.86 |
| 250+ | $2.0932 | $523.30 |
| 500+ | $2.0701 | $1035.04 |
| 3000+ | $1.8956 | $5686.77 |
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