TPSM828303 - 3A Low-EMI Buck Module 2.25-5.5V | Texas Instruments
部品番号: TPSM828303 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $2.35 | $2.35 |
| 10 | $2.09 | $20.90 |
| 100 | $1.79 | $179.00 |
| 500 | $1.55 | $775.00 |
| 1,000 | $1.38 | $1,380.00 |
TPSM828303 概要
A DC/DC power module is a complete point-of-load power supply that integrates the controller, power MOSFETs, inductor, and compensation into a single surface-mount package. As a member of the buck (step-down) converter family within the broader power management IC hierarchy, it efficiently reduces a higher input voltage to a lower output voltage while minimizing external component count, layout effort, and design risk compared to discrete converter solutions.
Key features include the DCS-Control topology for fast load transient response with small output capacitance, 1% feedback voltage accuracy over the full operating range, and integrated EMI reduction technologies that ease radiated emissions compliance. Automatic PWM/PFM transition maximizes light-load efficiency, and enable, power good, output discharge, and overcurrent protection functions simplify system integration.
The TPSM828303 is pin-to-pin compatible with the 1A (TPSM828301) and 2A (TPSM828302) family members, enabling current-rating scalability on one PCB layout. The integrated inductor with MagPack magnetic shielding (TPSM828303APVCBR variant) reduces radiated EMI and board area versus discrete designs. Operation over a -40C to +125C junction range suits industrial environments.
Typical applications include point-of-load (POL) power for FPGAs, DSPs, and ASICs, optical module supplies, test and measurement equipment, and noise-sensitive portable designs where low EMI is mandatory.
Design tip: follow the datasheet input/output capacitance recommendations - the DCS-Control topology supports output capacitors up to 200uF, and the EN pin plus power good signal enable proper rail sequencing in multi-rail systems. Prices as of 2026-08-30.
ドロップイン代替品: TPSM828303 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: TPSM828303 （同一形状・フットプリント） — 相違点: Input Voltage Range, Output Voltage Range, Package, Protection Features, Topology.
クイック比較ツール — 並列比較する代替部品を選択:
TPSM828302ARDSR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TPSM828301ARDSR
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
TPSM828303 最大定格＆電気的特性
| トポロジー | Synchronous step-down (buck) module |
| 入力電圧範囲 | 2.25 V to 5.5 V |
| 出力電圧範囲 | 0.5 V to 4.5 V |
| Output Current | 3 A |
| Feedback Voltage Accuracy | 1% over full operating range |
| Control Topology | DCS-Control |
| Light Load Mode | Automatic PWM/PFM transition |
| Integrated Inductor | Yes (MagPack shielding on PVC variant) |
| Maximum Output Capacitance | 200 uF |
| Protection Features | Overcurrent, output discharge, power good |
| イネーブルピン | Yes |
| EMI Features | Low-EMI design, EMI reduction technologies |
| 動作接合温度 | -40C to +125C |
| パッケージ | QFN-FCMOD-9 (3x3 mm) / MagPack |
| 実装タイプ | Surface Mount |
| Family Compatibility | Pin-to-pin compatible with TPSM828301 (1A) and TPSM828302 (2A) |
TPSM828303 ピン構成
| ピン 1 | EN — Enable input, active high |
| ピン 2 | GND — Ground |
| ピン 3 | VOS — Output voltage sense / feedback |
| ピン 4 | SS/TR — Soft start / tracking [DATA_NEEDED: exact pin mapping] |
| ピン 5 | PGOOD — Power good indicator |
| ピン 6 | VIN — Input supply |
| ピン 7 | L1 — Integrated inductor node [DATA_NEEDED: exact pin mapping] |
| ピン 8 | SW/VOUT — Switch node / output [DATA_NEEDED: exact pin mapping] |
| ピン 9 | GND (EP) — Exposed pad, thermal and ground |
主な用途
TPSM828303 の用途: 6 件s: FPGA/DSP Point-of-Load Power, Optical Module Supplies, Test and Measurement Equipment, Portable and Noise-Sensitive Designs, Industrial Automation POL, Low-EMI Radar and RF Subsystems.
FPGA/DSP Point-of-Load Power
The TPSM828303's DCS-Control topology delivers fast load transient response with only small output capacitance (up to 200uF supported), which is critical for FPGA and DSP core rails with steep load steps. The 3A rating covers mid-size core rails, and the power good flag plus EN pin support multi-rail sequencing. Placed directly at the load in a 3x3 mm footprint, the integrated inductor saves layout area while the 1% feedback accuracy holds tight core-voltage tolerances.
おすすめ
Optical Module Supplies
Optical transceiver modules demand compact, low-noise power in tight form factors. The TPSM828303's integrated shielded inductor and low-EMI technologies minimize switching noise that could couple into sensitive laser driver and TIA circuits. Its 2.25V-5.5V input accepts standard 3.3V/5V rails, and the 0.5V-4.5V adjustable output covers laser and DSP supply needs in a small QFN footprint with minimal external parts.
おすすめ
Test and Measurement Equipment
Instruments require clean, stable local rails with low radiated noise so measurement front ends are not disturbed. The TPSM828303's low-EMI design, automatic PWM/PFM transition for high light-load efficiency, and overcurrent protection make it a robust POL choice. Its fast DCS-Control transient response also handles the dynamic loads typical of switching instrument subsystems and logic blocks.
おすすめ
Portable and Noise-Sensitive Designs
Battery-adjacent 5V or 3.3V input designs benefit from the TPSM828303's light-load efficiency via automatic PWM/PFM transition and its low-EMI shielding. The integrated inductor shrinks solution height and area for handheld and wearable form factors, while output discharge simplifies power-down behavior. With output voltage down to 0.5V, it supports modern low-voltage processors and sensor rails.
おすすめ
Industrial Automation POL
The -40C to +125C operating junction range and integrated overcurrent protection suit factory automation controllers and sensor hubs. The TPSM828303 steps 5V logic rails down to processor and I/O voltages with 1% accuracy, and its pin-to-pin family (1A/2A/3A) lets one PCB layout scale to different load points. EMI reduction technologies help meet industrial radiated-emissions requirements.
おすすめ
Low-EMI Radar and RF Subsystems
RF and radar front ends are highly sensitive to switching noise. The TPSM828303, especially the MagPack-shielded TPSM828303APVCBR variant, minimizes radiated emissions at the source, simplifying compliance. DCS-Control keeps rail ripple low during pulsed transmit loads typical of radar transmitters, and the EN/power good pair enables clean transmit/receive rail sequencing.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: TPSM828303 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | TPSM828302ARDSR | TPSM828301ARDSR | TPSM82823 |
|---|---|---|---|---|
| Package | QFN-FCMOD-9 (3x3 mm) / MagPack | QFN-FCMOD-9 (3x3 mm) - same | QFN-FCMOD-9 (3x3 mm) - same | Different module package |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Output Current | 3 A | 2 A | 1 A | 3 A (external inductor) |
| Input Voltage Range | 2.25 V to 5.5 V | 2.25 V to 5.5 V | 2.25 V to 5.5 V | 2.2 V to 5.5 V |
| Integrated Inductor | Yes | Yes | Yes | No - external inductor required |
| Pin-to-Pin Compatibility | Family standard (TPSM82830x) | Pin-to-pin compatible | Pin-to-pin compatible | Not pin-compatible |
主な差別化要因
- 3A current rating on family footprint （vs TPSM828302ARDSR)
- MagPack shielded-inductor variant available （vs TPS628303)
- DCS-Control fast transient response （vs TPSM82823)
設計ノート
Place input capacitance as close to VIN/GND as possible; follow the datasheet recommended layout in section on PCB layout of TI TPSM828303 datasheet. The exposed pad must be soldered to a solid ground plane for thermal dissipation and low EMI. Since the inductor is integrated, no switch-node routing is needed, but keep the output sense (VOS) trace Kelvin-routed to the output capacitor for the full 1% accuracy benefit.
The DCS-Control topology supports output capacitance up to 200uF, which lets you trade transient response against board area. Size input capacitors for a 5.5V maximum input with adequate ripple current rating. Avoid large VIN-VOUT deltas at full 3A load without verifying junction temperature per datasheet thermal derating curves.
Do not exceed the 5.5V absolute maximum input. For multi-rail systems, use the EN pin with external sequencing logic or the SS/TR soft-start pin to control startup; verify power good assertion delay against downstream load requirements. When substituting between TPSM828301/02/03 on a shared layout, recheck inductor saturation and thermal limits at the higher current ratings.
コンプライアンス情報
RoHS status per TI product page; confirm exact compliance per ordering suffix on ti.com quality pages.
