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Product Overview
The TPS25221DBVT from Texas Instruments is a precision adjustable current-limited power-distribution switch designed for applications where heavy capacitive loads and short circuits are encountered. It offers a programmable current limit from 200 mA to 2 A, operates over a wide input voltage range of 2.5 V to 5.5 V, and is housed in a compact SOT-23-6 package. The device integrates a low on-resistance N-channel MOSFET, ensuring minimal power dissipation and efficient power management.
Detailed Technical Specifications
| Parameter |
Value |
| Input Voltage Range |
2.5 V to 5.5 V |
| Current Limit Range |
200 mA to 2 A (programmable via external resistor) |
| On-Resistance (typical) |
70 mΩ at 5 V |
| Quiescent Current |
100 μA (typical) |
| Shutdown Current |
1 μA (max) |
| Output Discharge |
Yes (active pull-down when disabled) |
| Fault Flag |
Open-drain, active low |
| Operating Temperature |
-40°C to +125°C |
| Package |
SOT-23-6 |
Key Features
- Adjustable current limit with ±10% accuracy at room temperature
- Low quiescent current (100 μA typical) for battery-powered applications
- Fast transient response to load changes
- Built-in thermal shutdown and overcurrent protection
- Reverse current blocking when disabled
- Under-voltage lockout (UVLO)
- Small SOT-23-6 package saves board space
Target Applications
- 5G base station power distribution
- Automotive dashboard infotainment systems
- Industrial sensors and actuators
- Portable and battery-powered devices
- USB peripheral power switches
- Solid-state drives (SSDs)
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
TPS25221DBVT. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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BOM Kitting & Sampling Services: Specialized sourcing for
testing samples and urgent shortage components.
Quality Assurance & Compliance
Jasin Chip guarantees that all delivered products are 100% original factory stock
with full quality assurance and traceability.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
TPS25221DBVT 是德州儀器(TI)推出的一款精密可調限流電源分配開關,專為處理大電容負載和短路情況而設計。它提供 200 mA 至 2 A 的可編程電流限制,工作電壓範圍為 2.5 V 至 5.5 V,採用緊湊的 SOT-23-6 封裝。該器件集成了低導通電阻的 N 溝道 MOSFET,確保低功耗和高效率的電源管理。
詳細技術參數
| 參數 |
數值 |
| 輸入電壓範圍 |
2.5 V 至 5.5 V |
| 電流限制範圍 |
200 mA 至 2 A(通過外部電阻可編程) |
| 導通電阻(典型值) |
70 mΩ(5 V 時) |
| 靜態電流 |
100 μA(典型值) |
| 關斷電流 |
1 μA(最大值) |
| 輸出放電 |
有(禁用時主動下拉) |
| 故障標誌 |
開漏輸出,低電平有效 |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
SOT-23-6 |
核心特性
- 可調電流限制,室溫下精度 ±10%
- 低靜態電流(典型值 100 μA),適合電池供電應用
- 快速響應負載變化
- 內置熱關斷和過流保護
- 禁用時反向電流阻斷
- 欠壓鎖定(UVLO)
- 小型 SOT-23-6 封裝節省電路板空間
典型應用場景
- 5G 基站電源分配
- 汽車儀表板信息娛樂系統
- 工業傳感器和執行器
- 便攜式和電池供電設備
- USB 外設電源開關
- 固態硬盤(SSD)
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 TPS25221DBVT 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
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