TPSM82822A - 2A Step-Down Module, Integrated Inductor | TI
MPN: TPSM82822A ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.15 | $2.15 |
| 10 | $1.93 | $19.30 |
| 100 | $1.62 | $162.00 |
| 500 | $1.38 | $690.00 |
| 1,000 | $1.19 | $1,190.00 |
TPSM82822A Overview
A step-down converter, or buck converter, is a switching voltage regulator that efficiently reduces a higher DC input voltage to a lower regulated output. Within the power management IC hierarchy, the TPSM82822A is a power module: it integrates the buck converter IC, power MOSFETs, and the magnetic inductor into one surface-mount package, collapsing an entire DC-DC solution into about 5 mm2 of board area.
Key features include a 2.4 V to 5.5 V input range, 2 A continuous output current, forced PWM operation for constant 2.2 MHz switching frequency and predictable EMI, power-good output, enable pin, and internal soft-start. Efficiency reaches approximately 95% at typical loads, and the high operating frequency allows small external capacitors and low output ripple.
Technically, the module uses a synchronous buck architecture with integrated low-DS(on) MOSFETs and a proprietary control scheme. Integrating the inductor inside the package minimizes parasitic loop inductance, reduces radiated EMI, and enables automated assembly with standard surface-mount equipment per the TPSM8282x datasheet.
Typical applications include powering FPGAs, DSPs, ASICs, and MCUs in industrial systems, optical modules, solid-state drives, and portable devices where board space is at a premium. Forced PWM keeps output ripple low and constant-frequency, suiting noise-sensitive analog and RF rails.
Design consideration: follow the datasheet input/output capacitor recommendations exactly for stability, and provide adequate thermal copper area for sustained 2 A loads; the module does not eliminate thermal design entirely.
Drop-in alternatives for TPSM82822A — 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 TPSM82822A (same form factor and footprint) — differing in Input Voltage Range, Output Voltage Range, Package, Switching Frequency, Maximum Output Current.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TPSM82822SILR
✅ Drop-In📋 Reference alternative (not in catalog)
TPSM82821SILR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPSM82823SILR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPSM82813SILR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPSM82085SILR
⚡ Same Package ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TPSM82822A Maximum Ratings & Electrical Characteristics
| Topology | Synchronous step-down (buck) module |
| Input Voltage Range | 2.4 V to 5.5 V |
| Output Voltage Range | 0.6 V to 4 V (adjustable) |
| Output Current | 2 A |
| Switching Frequency | 2.2 MHz (forced PWM) |
| Integrated Inductor | Yes (MicroSiP module) |
| Package | uSiP 2 x 2.5 x 1.1 mm |
| Number of Outputs | 1 |
| Control Mode | Forced PWM |
| Power Good Output | Yes |
| Enable Pin | Yes |
| Soft-Start | Internal |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
TPSM82822A Pin Configuration
| Pin 1 | PVIN — Power input supply (2.4 V to 5.5 V) |
| Pin 2 | GND — Ground |
| Pin 3 | EN — Enable input |
| Pin 4 | SS/TR or VREG — [DATA_NEEDED: exact pin function per datasheet] |
| Pin 5 | FB — Feedback input for output voltage adjustment |
| Pin 6 | PGOOD — Power-good output flag |
| Pin 7 | VOUT — Regulated output (0.6 V to 4 V) |
| Pin 8 | SW/inductor node — Internal switching node with integrated inductor |
Typical Applications
TPSM82822A is suitable for 6 applications: FPGA/DSP Point-of-Load Power, Optical Modules, Solid-State Drives, Portable and Battery-Powered Devices, Industrial Automation Systems, MCU and Wireless Module Power.
FPGA/DSP Point-of-Load Power
The TPSM82822A's 2 A output and 0.6-4 V adjustable range cover core and I/O rails of FPGAs, DSPs, and ASICs. Forced PWM at 2.2 MHz keeps switching noise at a fixed, filterable frequency, protecting noise-sensitive core rails from ripple-induced clock jitter. Placed directly at the load pin with small ceramic output capacitors, the integrated-inductor module delivers a complete rail in about 5 mm2, ideal for dense FPGA clusters where discrete solutions cannot fit.
Recommended
Optical Modules
Optical transceiver modules demand compact, low-profile power conversion on very small boards. The 1.1 mm MicroSiP height and 2 x 2.5 mm footprint fit within module enclosures, while forced PWM ensures constant-frequency operation that avoids interfering with sensitive analog front ends. The 2.4 V minimum input suits rails derived from 3.3 V supplies, and 95% typical efficiency minimizes heat inside thermally constrained optical housings, protecting laser diode wavelength stability.
Recommended
Solid-State Drives
SSD controllers and NAND power rails benefit from the TPSM82822A's compact integrated-inductor design and fast 2.2 MHz switching, which allows small external capacitors and rapid transient response during read/write bursts. Forced PWM maintains predictable ripple across load transitions between idle and active states. The module's automated-assembly compatibility suits high-volume SSD manufacturing, and its 2 A capacity covers typical controller rail demands from a 5 V or 3.3 V input.
Recommended
Portable and Battery-Powered Devices
With a 2.4 V minimum input, the TPSM82822A operates directly from single-cell Li-ion batteries across their full discharge range. The compact MicroSiP package conserves board space in wearables and handheld instruments, while forced PWM produces clean, predictable output for mixed-signal loads. At approximately 95% typical efficiency the module extends battery runtime, and the enable pin supports low-power system shutdown sequences in portable designs.
Recommended
Industrial Automation Systems
Industrial controllers, sensors, and communication modules use the TPSM82822A to derive 3.3 V, 2.5 V, or 1.8 V logic rails from 5 V backplanes. The integrated inductor reduces radiated EMI, easing compliance in noisy factory environments, and the power-good flag enables reliable system monitoring and sequencing. Its 2 A capacity and small footprint support dense I/O card designs where multiple point-of-load modules populate limited board area.
Recommended
MCU and Wireless Module Power
Microcontrollers and RF/wireless modules require low-noise, well-regulated supplies; the TPSM82822A's forced PWM keeps output ripple at a constant 2.2 MHz rate, easy to filter before sensitive RF blocks. The 1.1 mm profile fits under shields common in wireless designs, and the enable pin plus internal soft-start support clean power-up sequencing. Its 2 A rating covers transmit burst currents of Wi-Fi and cellular modules without voltage sag.
Recommended
Recommended Products Summary
Engineering reference data for TPSM82822A — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPSM82822SILR | TPSM82821SILR | TPSM82823SILR |
|---|---|---|---|---|
| Package | uSiP 2 x 2.5 x 1.1 mm | uSiP 2 x 2.5 x 1.1 mm - same | uSiP 2 x 2.5 x 1.1 mm - same | uSiP 2 x 2.5 x 1.1 mm - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Output Current | 2 A | 2 A | 2 A | 3 A |
| Forced PWM Mode | Yes | No (flexible mode) | Yes | Yes |
| Integrated Inductor | Yes | Yes | Yes | Yes |
| Family Features | PGOOD, EN, internal soft start | PGOOD, EN, internal soft start | Freq sync, spread spectrum, tracking | Freq sync, spread spectrum, tracking |
Key Differentiators
- Forced PWM constant-frequency operation (vs TPSM82822SILR)
- Integrated inductor saves design effort (vs TPS54302QDDCRQ1)
- Higher current in same footprint when scaling (vs TPSM82823SILR)
Design Notes
Follow the TPSM8282x datasheet layout guidelines: place input and output ceramic capacitors as close as possible to the module pins, and connect the GND pad directly to a solid ground plane with multiple vias. Although the inductor is integrated, the input current loop is still critical for EMI - keep the PVIN loop area minimal.
At 2 A continuous output, the module dissipates conduction and switching losses in the small 2 x 2.5 mm package. Provide adequate thermal copper area under and around the module; verify junction temperature against the datasheet derating curves at your maximum ambient temperature. Efficiency of roughly 95% still yields meaningful heat at full load.
Set the output voltage with the FB resistor divider within the 0.6 V to 4 V range and use 1% tolerance resistors. Do not omit the output capacitor or deviate from the datasheet recommended values - the internal compensation assumes specific capacitance ranges for stability at the 2.2 MHz forced-PWM operating point.
Compliance Information
RoHS compliant and lead-free per TI product information. Detailed material declarations available on TI.com quality pages.
