TPS7A5401RPST TI LDO Regulator | 12-VQFN-HR (2.2x2.5) | 500mA, 1.5μVrms Noise

Product Overview

The TPS7A5401RPST from Texas Instruments is a high-performance, low-dropout (LDO) linear voltage regulator designed for noise-sensitive applications. It delivers up to 500 mA of output current with an ultra-low output noise of 1.5 μVrms (10 Hz to 100 kHz) and a high power supply rejection ratio (PSRR) of 45 dB at 1 MHz. The device operates over a wide input voltage range of 1.4 V to 6.5 V and provides an adjustable output voltage from 0.8 V to 5.5 V. Housed in a compact 12-pin VQFN-HR package (2.2 mm x 2.5 mm), it is ideal for space-constrained applications requiring clean power rails.

Detailed Technical Specifications

Key Features

• Ultra-low output noise: 1.5 μVrms (10 Hz – 100 kHz)
• High PSRR: 45 dB at 1 MHz
• Low dropout voltage: 200 mV at 500 mA
• Low quiescent current: 25 μA
• Adjustable output voltage from 0.8 V to 5.5 V
• Stable with ceramic output capacitors (≥ 2.2 μF)
• Enable pin for power sequencing
• Overcurrent and overtemperature protection
• Small footprint: 2.2 mm x 2.5 mm VQFN-HR package

Target Applications

• 5G base stations: Powering RF transceivers and PLLs (e.g., TI's LMX2594)
• Automotive dashboard: Clean supply for infotainment processors (e.g., TI's DRA74x)
• Medical imaging: Noise-sensitive analog front-ends (e.g., TI's AFE5808)
• Industrial sensors: Precision ADC reference (e.g., TI's ADS1261)
• Portable audio: Powering DACs and amplifiers (e.g., TI's PCM5242)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for TPS7A5401RPST. Our core advantages include:

• 24/7 Global Customer Support: Professional team providing instant quotes and technical support worldwide.
• In-stock Inventory, Same-day Shipping: We maintain localized stock; orders confirmed before 4 PM are shipped the same day.
• HK-SZ Synergy, Flexible Settlement: Direct global shipping from Shenzhen with support for HK bank transfers and multi-currency.
• Escrow Secured Transactions: We support Escrow.com for secure transactions, ensuring peace of mind for batch orders.
• BOM Kitting & Sampling Services: Specialized sourcing for testing samples and urgent shortage components.

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Jasin Chip guarantees that all delivered products are 100% original factory stock with full quality assurance and traceability.

• 100% Original & Authentic: All components are guaranteed to be authentic with strict quality control.
• RoHS Compliant: All electronic components comply with international environmental and safety standards.
• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

TPS7A5401RPST 是德州儀器（TI）推出的一款高性能低壓差線性穩壓器（LDO），專為噪聲敏感型應用設計。它可提供高達 500 mA 的輸出電流，具有超低輸出噪聲（1.5 μVrms，10 Hz 至 100 kHz）和高電源抑制比（PSRR，1 MHz 時為 45 dB）。該器件支持 1.4 V 至 6.5 V 的寬輸入電壓範圍，並提供 0.8 V 至 5.5 V 的可調輸出電壓。採用緊湊的 12 引腳 VQFN-HR 封裝（2.2 mm x 2.5 mm），非常適合需要乾淨電源軌的空間受限應用。

詳細技術參數

核心特性

• 超低輸出噪聲：1.5 μVrms（10 Hz – 100 kHz）
• 高 PSRR：1 MHz 時為 45 dB
• 低壓差電壓：500 mA 時為 200 mV
• 低靜態電流：25 μA
• 可調輸出電壓：0.8 V 至 5.5 V
• 與陶瓷輸出電容（≥ 2.2 μF）穩定工作
• 使能引腳，用於電源排序
• 過流和過溫保護
• 小尺寸：2.2 mm x 2.5 mm VQFN-HR 封裝

典型應用場景

• 5G 基站：為射頻收發器和鎖相環供電（如 TI 的 LMX2594）
• 汽車儀表板：為信息娛樂處理器提供乾淨電源（如 TI 的 DRA74x）
• 醫療影像：噪聲敏感的模擬前端（如 TI 的 AFE5808）
• 工業傳感器：精密 ADC 參考電壓（如 TI 的 ADS1261）
• 便攜式音頻：為 DAC 和放大器供電（如 TI 的 PCM5242）

環球供應鏈與批發合作夥伴方案

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HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
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