TPSM82813 - 3A 6V Step-Down Power Module | TI
MPN: TPSM82813 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.78 | $37.80 |
| 100 | $3.36 | $336.00 |
| 500 | $3.02 | $1,510.00 |
| 1,000 | $2.72 | $2,720.00 |
TPSM82813 Overview
A step-down (buck) converter is a DC/DC power converter that efficiently reduces a higher input voltage to a lower regulated output. Power modules integrate the inductor and control circuitry into a single package, sitting one level above discrete buck converters in the power management IC hierarchy and dramatically reducing design effort and PCB area compared to controller-plus-inductor solutions.
Key features include optional frequency synchronization, adjustable soft-start, and output voltage tracking for power sequencing. The device also offers spread spectrum for EMI reduction, a power good output, adjustable UVLO, and light-load efficiency mode. Efficiency reaches approximately 95%, minimizing losses in high-current point-of-load designs.
Technically, the TPSM82813 uses a fixed-frequency peak current-mode control topology, providing fast transient response and stable loop behavior. The integrated inductor is optimized for low loss and contained EMI, while the MagPack package improves thermal performance. Thermal behavior is characterized on a JEDEC 51-7 defined PCB.
Typical applications include point-of-load converters for FPGAs, DSPs, and ASICs, plus power supplies for telecommunication, test and measurement, medical, and industrial sensor equipment. The wide 2.75V-6V input supports 5V and 3.3V bus conversions, and the small footprint enables dense rail designs.
Design tip: follow datasheet input/output capacitance recommendations, configure soft-start and tracking for your power-up sequence, and use thermal vias under the module per the recommended land pattern. Pricing as of 2026-08-30, see tiers below.
Drop-in alternatives for TPSM82813 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TPSM82813 (same form factor and footprint) — differing in Input Voltage Range, Maximum Output Current, Output Voltage Range, Package, Topology.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TPSM82810SILR
✅ Drop-In📋 Reference alternative (not in catalog)
TPSM82823
✅ Drop-In📋 Reference alternative (not in catalog)
TPSM82812SILR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPSM82813ASILR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPSM82813 Maximum Ratings & Electrical Characteristics
| Topology | Synchronous step-down (buck), peak current-mode control |
| Input Voltage Range | 2.75 V to 6 V |
| Output Voltage Range | 0.6 V to 5.5 V (adjustable) |
| Maximum Output Current | 3 A |
| Peak Efficiency | Approximately 95% |
| Integrated Inductor | Yes (MagPack / QFN power module) |
| Frequency Synchronization | Optional |
| Spread Spectrum | Yes (EMI reduction) |
| Adjustable Soft-Start | Yes |
| Output Voltage Tracking | Yes (power sequencing) |
| Power Good Output | Yes |
| Adjustable UVLO | Yes |
| Light-Load Mode | Yes (efficiency optimization) |
| Family Pin Compatibility | TPSM8281x pin-to-pin family, 1A to 4A |
| Package | MagPack (SIL) or QFN power module |
| Mounting Type | Surface Mount |
TPSM82813 Pin Configuration
| Pin 1 | PVIN — Power input supply (2.75V to 6V) |
| Pin 2 | EN/UVLO — Enable and adjustable undervoltage lockout |
| Pin 3 | SS/TRACK — Adjustable soft-start and output voltage tracking |
| Pin 4 | RT/SYNC — Frequency setting / external synchronization input |
| Pin 5 | FB/VSEL — Feedback / output voltage selection (0.6V reference) |
| Pin 6 | PGOOD — Power good status output |
| Pin 7 | AGND — Analog ground |
| Pin 8 | PGND / VOUT — Power ground and regulated output (0.6V to 5.5V, 3A) |
Typical Applications
TPSM82813 is suitable for 6 applications: FPGA / ASIC Point-of-Load Power, Test and Measurement Instruments, Telecommunication Equipment, Medical Device Power Supplies, Industrial Automation and Sensors, Portable and Battery-Powered Devices.
FPGA / ASIC Point-of-Load Power
The TPSM82813 is a strong fit for FPGA and ASIC core rails because it delivers a full 3A from a 2.75V-6V input with about 95% peak efficiency, and its output is adjustable down to 0.6V for modern low-voltage cores. Peak current-mode control gives fast transient response during logic switching bursts. Placed directly beside the load with the integrated inductor, it saves significant PCB area versus a discrete buck; the adjustable soft-start and tracking features also allow core rails to sequence correctly against I/O rails during power-up.
Recommended
Test and Measurement Instruments
The TPSM82813 datasheet explicitly targets test and measurement equipment, where dense multi-rail supplies power ADCs, FPGAs, and clock circuits. Its 3A rating and 0.6V-5.5V adjustable output cover most point-of-load needs, while spread spectrum and the optional frequency synchronization let designers control EMI and beat-frequency interaction between multiple converters on one board. The integrated inductor removes magnetics selection effort, and the PGOOD output simplifies rail supervision in stacked instrumentation power trees.
Recommended
Telecommunication Equipment
Telecom line cards and network interface boards convert a distributed 5V or 3.3V intermediate bus to numerous local rails; the TPSM82813 fits this pattern with its 2.75V-6V input and 3A capability. The shielded integrated inductor and spread spectrum operation help meet system EMC requirements in dense racks, while efficiency near 95% reduces thermal load in convection-cooled equipment. Adjustable UVLO lets designers set a defined startup threshold against the intermediate bus, and tracking supports orderly processor boot sequencing.
Recommended
Medical Device Power Supplies
Medical diagnostic and monitoring electronics benefit from the TPSM82813 because the TI datasheet names medical applications directly. Its integrated, shielded inductor minimizes radiated emissions that could couple into sensitive analog front ends, and the small MagPack footprint suits portable and handheld instruments. The 0.6V-5.5V adjustable output powers low-voltage processors and sensors, and light-load efficiency mode reduces power draw in standby, extending battery life in portable patient-care devices.
Recommended
Industrial Automation and Sensors
Industrial control boards, motor-drive logic supplies, and sensor hubs frequently run from 5V rails derived from 24V bus systems. The TPSM82813 steps 5V down to processor, FPGA, or transceiver rails at up to 3A with roughly 95% efficiency, keeping junction temperatures low in sealed enclosures. Spread spectrum eives EMI compliance near motor drives, and the PGOOD output supports fault monitoring in distributed I/O modules. Its pin-to-pin family allows current scaling without PCB redesign across product variants.
Recommended
Portable and Battery-Powered Devices
For battery-operated instruments and handheld electronics fed by one or two lithium cells below 6V, the TPSM82813 provides efficient 2.75V-6V conversion to 0.6V-5.5V rails at up to 3A. Light-load efficiency mode keeps quiescent losses low during idle periods, extending run time, while the integrated inductor shortens the bill of materials and board assembly. The compact MagPack module enables dense layouts in space-constrained portable enclosures without magnetics placement or loop tuning effort.
Recommended
Recommended Products Summary
Engineering reference data for TPSM82813 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPSM82810SILR | TPSM82823 | TPSM82812SILR |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | MagPack (SIL) / QFN | MagPack (SIL) - same family footprint | MagPack (SIL) | MagPack (SIL) - same family footprint |
| Input Voltage Range | 2.75 V to 6 V | 2.75 V to 6 V | 2.75 V to 6 V | 2.75 V to 6 V |
| Output Voltage Range | 0.6 V to 5.5 V | 0.6 V to 5.5 V | 0.6 V to 5.5 V | 0.6 V to 5.5 V |
| Control Topology | Peak current-mode, fixed frequency | Peak current-mode, fixed frequency | Peak current-mode, fixed frequency | Peak current-mode, fixed frequency |
| Frequency Sync / Spread Spectrum | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes |
| Soft-Start and Tracking | Yes | Yes | Yes | Yes |
| Integrated Inductor | Yes | Yes | Yes | Yes |
Key Differentiators
- Integrated inductor reduces BOM and board area (vs Discrete buck converter solutions)
- Pin-to-pin family scalability from 1A to 4A (vs TPSM82810SILR)
- EMI control flexibility (vs TPSM82812SILR)
Design Notes
Follow the TI datasheet recommended land pattern for the MagPack (SIL) package and place thermal vias under the exposed power sections, per the JEDEC 51-7 characterized test board used for thermal data. Input and output ceramic capacitors must be placed as close as possible to the PVIN and VOUT/PGND pins to minimize high-frequency loop area and output ripple.
Size the external input capacitors for the worst-case input ripple at 3A load and account for inrush during soft-start; the adjustable soft-start pin (SS/TRACK) lets you control ramp rate and implement rail tracking for processor sequencing. Verify the total power budget against the approximately 95% peak efficiency curve at your actual VIN/VOUT operating point from the datasheet efficiency graphs.
Enable spread spectrum when passing conducted emissions testing, and use the RT/SYNC pin to synchronize the TPSM82813 to a system clock, avoiding beat-frequency interactions with adjacent converters. Do not let the switching frequency land near sensitive ADC or RF clock harmonics; the shielded integrated inductor already limits radiated emissions versus discrete magnetics.
Do not exceed the 6V absolute maximum input - transients on 5V rails from long cables can exceed this, so add local TVS or bulk capacitance at the input connector. Confirm EN/UVLO divider thresholds so the module does not chatter at low battery voltage, and do not omit the FB divider accuracy requirements (1% resistors) or output setpoint error will grow.
Compliance Information
Compliance details must be confirmed on the TI product page quality/ environmental section for the specific ordering suffix (SILR, PVCAR).
