TPS55332QPWPRQ1 - 3A 60V Boost Converter | TI AEC-Q100
部品番号: TPS55332QPWPRQ1 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $6.77 | $6.77 |
| 10 | $6.09 | $60.90 |
| 100 | $5.42 | $542.00 |
| 500 | $4.88 | $2,440.00 |
| 1,000 | $4.35 | $4,350.00 |
TPS55332QPWPRQ1 概要
A boost converter (also called a step-up converter) is a switching DC/DC topology that produces an output voltage higher than its input. As a member of the power management IC family, the TPS55332-Q1 uses an internal power switch, pulse-width modulation (PWM) control, and external passive components (inductor, capacitors, diode) to step up voltage efficiently. It is a synchronous-rectifier-less (asynchronous) topology, simplifying design but requiring an external Schottky diode.
Key features include a wide operating input range from 1.5 V to 40 V (after 3.6 V startup), integrated 60-V load-dump protection, 5.7-A peak internal switch current, ±1.5% feedback voltage accuracy, and an internal voltage supervisor with power-good indication. Frequency-programmable operation enables optimization between efficiency and external component size.
The device uses current-mode control with internal compensation, simplifying the feedback loop and supporting ceramic output capacitors. The TPS55332-Q1 is qualified to AEC-Q100 Grade 1 with an operating junction temperature range of -40°C to +150°C, targeting harsh automotive electrical environments.
Typical applications include automotive infotainment and cluster power rails, LED driver bias supplies, industrial 24-V step-up conversions, and battery-fed systems requiring load-dump protection. When designing, select the inductor for less than 5.7-A peak current, place the input bypass capacitor close to the VIN pin, and connect the PowerPAD to a ground copper pour to dissipate switch losses.
ドロップイン代替品: TPS55332QPWPRQ1 — 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。
クイック比較ツール — 並列比較する代替部品を選択:
TPS55332PWP
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TPS55332QPWPREP
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TPS55340QPWPRQ1
✅ ドロップイン📋 参考代替品（カタログ未掲載）
LM5155QPWPRQ1
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TPS61170QPWPRQ1
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TPS55332QPWPRQ1 最大定格＆電気的特性
| トポロジー | Boost (Step-Up) |
| 入力電圧範囲 | 1.5 V to 40 V (after 3.6 V startup) |
| Maximum Input Voltage (Transient) | 60 V (load dump protection) |
| 出力電圧範囲 | 2.5 V to 50 V (adjustable) |
| Output Current | 500 mA (application-dependent, 3 A switch) |
| Switch Current (Peak) | 5.7 A (typical) |
| Switching Frequency Range | 80 kHz to 2.2 MHz (programmable) |
| Internal Switch MOSFET | 60 V, 3 A integrated |
| Feedback Voltage Accuracy | ±1.5% |
| PWM Control Mode | Voltage Mode (Current-Mode compatible per datasheet) |
| 同期整流器 | No (asynchronous, external diode) |
| 出力数 | 1 |
| パッケージ | 20-Pin HTSSOP (PWP) PowerPAD, 4.40 mm body width |
| 実装タイプ | Surface Mount |
| 動作接合温度 | -40°C to +150°C |
| Automotive Qualification | AEC-Q100 Grade 1 |
| RoHS ステータス | Compliant |
TPS55332QPWPRQ1 ピン構成
| ピン 1 | AGND — Analog ground reference |
| ピン 2 | RT/SS — Frequency set / soft-start |
| ピン 3 | FB — Feedback voltage input |
| ピン 4 | COMP — Compensation network node |
| ピン 5 | EN — Enable input |
| ピン 6 | NC — Not connected (per datasheet) |
| ピン 7 | BST — Bootstrap for high-side driver |
| ピン 8 | SW — Switch node |
| ピン 9 | SW — Switch node |
| ピン 10 | NC — Not connected (per datasheet) |
| ピン 11 | VIN — Input supply voltage |
| ピン 12 | VIN — Input supply voltage |
| ピン 13 | PGND — Power ground |
| ピン 14 | PGND — Power ground |
| ピン 15 | VOUT — Output voltage sense |
| ピン 16 | PGND — Power ground |
| ピン 17 | PGND — Power ground |
| ピン 18 | VIN — Input supply voltage |
| ピン 19 | PGND — Power ground |
| ピン 20 | PGND — Power ground |
主な用途
TPS55332QPWPRQ1 の用途: 6 件s: Automotive Infotainment Power Rail, LED Driver Bias Supply, Industrial 24-V Step-Up Conversion, Battery-Fed Portable System Boost, Automotive Sensor Supply Rail, 12-V to 24-V Battery-Backed Boost.
Automotive Infotainment Power Rail
The TPS55332QPWPRQ1 is well-matched to automotive infotainment power rails thanks to its 1.5-V to 40-V input range, 60-V load-dump protection, and AEC-Q100 Grade 1 qualification. The 3-A internal switch with 5.7-A peak capability easily delivers 1 A to 2 A continuous current for head-unit display bias, audio amplifier rails, and USB charging outputs. The 2.5-V to 50-V adjustable output supports common rail voltages including 5 V, 9 V, 12 V, and 15 V for downstream point-of-load converters. Its wide 80-kHz to 2.2-MHz switching range allows designers to move above the AM radio band for noise-sensitive audio applications.
おすすめ
LED Driver Bias Supply
The TPS55332QPWPRQ1 serves as a high-voltage bias supply for automotive LED backlighting and exterior lighting drivers. Its adjustable 2.5-V to 50-V output directly produces the 12-V to 40-V rails required by LED driver ICs in headlights, tail lamps, and dashboard backlights. The 60-V transient withstand handles load-dump events common in 12-V automotive buses without requiring external TVS protection. The 3-A switch delivers sufficient current for multi-LED string drivers, and frequency programmability above 1 MHz shrinks the boost inductor to a small 4.7-µH to 10-µH value, ideal for compact lamp-module PCBs.
おすすめ
Industrial 24-V Step-Up Conversion
For industrial 24-V bus step-up to higher intermediate rails, the TPS55332QPWPRQ1 accepts 24-V nominal input with 60-V transient tolerance, ideal for factory-automation power designs. The 3-A switch and 50-V output ceiling convert 24-V bus to 36-V or 48-V rails for industrial sensor supplies, isolated gate drivers, and IGBT module bias. AEC-Q100 qualification provides extra reliability margin in harsh industrial environments with temperature swings and voltage transients. The HTSSOP-20 PowerPAD package offers ~30°C/W junction-to-ambient thermal resistance with proper copper pours.
おすすめ
Battery-Fed Portable System Boost
The TPS55332QPWPRQ1 boosts 1.5-V to 12-V battery sources to stable 5-V, 9-V, or 12-V rails for portable instrumentation and emergency backup devices. Its 1.5-V minimum input (after 3.6-V startup) supports depleted alkaline or lithium battery packs, extending usable runtime. The 3-A internal switch handles load steps common when wireless radios or displays wake up. Frequency programming to 2.2 MHz shrinks the external inductor and capacitors for handheld form-factor designs. The HTSSOP-20 PowerPAD package provides efficient thermal dissipation in sealed enclosures.
おすすめ
Automotive Sensor Supply Rail
The TPS55332QPWPRQ1 provides clean, regulated rails for ADAS sensor modules including camera, radar, and lidar power trees. Its 60-V load-dump tolerance and AEC-Q100 Grade 1 certification meet automotive OEM requirements for sensor safety-critical circuits. The 2.5-V to 50-V adjustable output supports sensor bias voltages from 3.3 V logic rails to 24-V analog front-end supplies. With 5.7-A peak switch current, the device handles inrush transients when sensors power up. The fixed-frequency PWM control and small HTSSOP-20 footprint simplify EMI compliance in densely packed sensor modules.
おすすめ
12-V to 24-V Battery-Backed Boost
The TPS55332QPWPRQ1 is ideal for 12-V to 24-V automotive battery-backed systems that need step-up conversion for body control modules and accessory power outlets. The wide input range supports cold-crank events down to 4.5-V on 12-V automotive batteries, while the 60-V rating handles jump-start and load-dump surges. The 3-A internal switch delivers enough current for USB-PD outlets, 24-V truck cabin accessories, and emergency lighting. Frequency programmability allows AM-band avoidance for body-controller modules that share the wiring harness with radio antennas.
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: TPS55332QPWPRQ1 — 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 | TPS55332PWP | TPS55332QPWPREP | TPS55340QPWPRQ1 | LM5155QPWPRQ1 | TPS61170QPWPRQ1 |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | HTSSOP-20 (PWP) | HTSSOP-20 (PWP) - same | HTSSOP-20 (PWP) - same | HTSSOP-20 (PWP) - same | HTSSOP-20 (PWP) - same | HTSSOP-20 (PWP) - same |
| Topology | Boost (Step-Up) | Boost (Step-Up) | Boost (Step-Up) | Buck (Step-Down) | Boost/SEPIC/Boost | Boost (Step-Up) |
| Input Voltage Range | 1.5 V to 40 V | 1.5 V to 40 V | 1.5 V to 40 V | 4.5 V to 42 V | 1.5 V to 45 V | 3 V to 38 V |
| Output Voltage Range | 2.5 V to 50 V | 2.5 V to 50 V | 2.5 V to 50 V | 0.8 V to ~Vin | Up to 50 V+ | Up to 38 V |
| Switch Current | 3 A (5.7 A peak) | 3 A (5.7 A peak) | 3 A (5.7 A peak) | 3.5 A | 6 A peak | 3 A |
| Switching Frequency Range | 80 kHz to 2.2 MHz | 80 kHz to 2.2 MHz | 80 kHz to 2.2 MHz | 100 kHz to 1 MHz | 100 kHz to 2.2 MHz | Up to 2.2 MHz |
| AEC-Q100 Automotive Grade | Yes (Grade 1) | No | Yes (Grade 1) | Yes (Grade 1) | Yes (Grade 1) | Yes (Grade 1) |
主な差別化要因
- AEC-Q100 Grade 1 qualified （vs TPS55332PWP)
- Step-up topology vs step-down （vs TPS55340QPWPRQ1)
- Higher transient withstand voltage （vs TPS61170QPWPRQ1)
設計ノート
The HTSSOP-20 PowerPAD package relies on the bottom exposed pad for primary heat dissipation. Use at least 4 thermal vias (0.3-mm drill, 1-oz copper plating) under the PowerPAD connected to an inner ground copper pour of 1 sq-in minimum. At maximum VIN=24-V to VOUT=48-V conversion at 500-mA load (estimated: 7.2-W dissipation), junction temperature rise above ambient may exceed 50°C without adequate copper area.
Place the input bypass capacitor (≥1-µF X7R ceramic) as close as possible to the VIN pins, and minimize the switching loop formed by VIN, SW, the external Schottky diode, and the inductor. Keep the SW trace short and wide to reduce EMI and voltage stress. Place the output capacitor (≥10-µF X7R ceramic) near the VOUT pin and the boost Schottky rectifier. Per TI datasheet layout guidelines, a 4-layer PCB with dedicated ground plane is recommended.
Estimated inductor sizing for 2.2-MHz operation at VIN=12-V to VOUT=24-V at 0.3-A load: L ≥ VIN*(VOUT-VIN)/(0.3*FSW*VOUT) = 12*12/(0.3*2.2e6*24) ≈ 0.91 µH. Select a 1.5-µH inductor rated for ≥5-A saturation current. Never use a diode with reverse-voltage rating below the application's maximum transient - select 60-V or 100-V Schottky for 24-V output applications. Avoid using electrolytic capacitors on the output - the TPS55332-Q1 stability requires ceramic X7R output capacitance per TI datasheet.
コンプライアンス情報
AEC-Q100 Grade 1 qualified for automotive applications. RoHS and REACH compliant per TI product page. The Q1 suffix denotes TI's automotive-qualified part variant.
