TPS7A3001DGNR Low-Dropout LDO, SOT-223 Package, Wide Input Voltage, High Reliability, for IoT Devices/Portable Tech, In Stock
Category:
Integrated Circuits ICs
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T/T
Specifications
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Introduction
1. Product Overview
TPS7A3001DGNR is a high-performance, low-dropout linear regulator (LDO) designed to deliver stable, low-noise power to sensitive electronic components in diverse systems. It features an adjustable output voltage, ultra-low output noise, and high power supply rejection ratio (PSRR), making it ideal for powering noise-sensitive circuits such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), radio frequency (RF) modules, and microcontroller (MCU) cores. With its wide input voltage range, low quiescent current, and robust protection mechanisms, this LDO is well-suited for battery-powered devices, industrial instrumentation, medical equipment, and automotive electronics that demand reliable power regulation with minimal power loss.
2. Core Electrical Parameters
- Input Voltage Range: 2.7V ~ 18V, compatible with various power sources including lithium-ion batteries, industrial 12V supplies, and automotive auxiliary power;
- Output Voltage Range: Adjustable from 0.8V to VIN (via external feedback resistors), supporting common core voltages of MCUs, FPGAs, and analog circuits;
- Maximum Output Current: 1A (continuous), meeting medium-power supply requirements for sensitive components;
- Dropout Voltage (V₀): Typical 150mV @ 1A (at V₀=3.3V), enabling efficient regulation even when input-output voltage difference is small;
- Output Noise: Typical 10μVrms (10Hz ~ 100kHz, at V₀=3.3V), minimizing interference to noise-sensitive circuits like RF front-ends;
- Power Supply Rejection Ratio (PSRR): Typical 70dB @ 1kHz (at V₀=3.3V), suppressing fluctuations in the input power supply to maintain stable output;
- Quiescent Current: Typical 50μA (no-load, enabled), reducing standby power consumption for battery-powered devices;
- Operating Temperature Range: -40℃ ~ 125℃ (extended industrial-grade standard), adapting to extreme temperature environments;
- Package Type: SOT-223 (Small Outline Transistor Package), 5-pin configuration with 2.3mm × 2.1mm footprint, suitable for space-constrained PCB designs;
- ESD Protection:
- Human-Body Model (HBM): ±2kV (all pins)
- Charged-Device Model (CDM): ±750V (all pins), enhancing system robustness against electrostatic discharge.
3. Core Functional Features
- Ultra-Low Output Noise: Integrated noise-reduction circuitry ensures low output noise, eliminating the need for external noise-filtering components and simplifying design for analog/RF systems;
- High PSRR: Effectively attenuates input voltage ripple and transients, critical for powering precision analog circuits (e.g., ADCs with high resolution) that require stable power;
- Adjustable Output Voltage: Flexible output voltage configuration via external resistors (R1/R2) supports diverse voltage requirements without needing multiple fixed-voltage LDOs;
- Enable Pin (EN): Active-high enable pin allows for power management (e.g., turning off the LDO in standby mode) to further reduce power consumption;
- Comprehensive Protection Mechanisms: Equipped with built-in overcurrent protection (OCP), thermal shutdown (TSD), and reverse-current protection, preventing chip damage from overload, overheating, or reverse voltage conditions;
- Fast Transient Response: Typical 10μs response time to load changes, maintaining output voltage stability during sudden current spikes (e.g., MCU wake-up events).
4. Typical Application Scenarios
- Industrial Electronics Field:
- Precision sensors (e.g., pressure, temperature, and flow sensors) requiring stable, low-noise power;
- Industrial PLCs (Programmable Logic Controllers) and DCS (Distributed Control Systems) for powering analog input modules;
- Process instrumentation (e.g., oscilloscopes, data loggers) to supply noise-sensitive measurement circuits.
- Medical Electronics Field:
- Portable medical devices (e.g., blood glucose monitors, heart rate monitors) with battery-powered designs;
- Medical imaging equipment (e.g., ultrasound probes) for powering low-noise analog signal chains.
- Automotive Electronics Field:
- In-vehicle infotainment systems (e.g., GPS modules, RF receivers) requiring high PSRR to suppress automotive power ripple;
- Automotive sensor modules (e.g., MEMS accelerometers, radar sensors) for stable power delivery in harsh environments.
- Consumer Electronics Field:
- Wearable devices (e.g., smartwatches, fitness trackers) with ultra-low power consumption needs;
- Audio equipment (e.g., headphone amplifiers, portable speakers) to reduce power-supply-induced noise;
- Wireless communication devices (e.g., Wi-Fi/Bluetooth modules) for powering RF transceivers.
