Low-Power LDO Regulator with Precision Voltage Regulation and Low Noise Operation for Stable Power Supply
Specifications
MFR:
ADI
Product Number:
MAX2016ETI
Description:
IC RF DETECT 30KHZ-2.5GHZ 28QFN
Highlight:
Low-Power LDO Regulator
,Precision Voltage Regulation LDO Regulator
,Low Noise Operation LDO Regulator
Introduction
MAX2016ETI Low-Power Linear Regulator
The MAX2016ETI is a high-performance, low-power linear regulator designed for precision voltage regulation in various electronic systems. It integrates key features to deliver stable output voltages with minimal noise, making it suitable for power-sensitive applications.
Core Functions
- Precision Voltage Regulation: Provides a fixed or adjustable output voltage (0.8V to 5.5V) with high accuracy (±1% tolerance over temperature), ensuring stable power supply for sensitive components.
- Low Noise Operation: Features ultra-low output noise (<10μVrms) and excellent line/load regulation, critical for analog circuits, sensors, and communication modules.
- Low Power Consumption: Exhibits minimal quiescent current (<100μA), ideal for battery-powered devices where energy efficiency is paramount.
- Overcurrent and Thermal Protection: Includes built-in current limiting and thermal shutdown mechanisms to prevent damage from overloads or excessive temperatures.
- Fast Transient Response: Quickly adjusts to sudden changes in load current, maintaining output voltage stability even with dynamic load conditions.
Typical Applications
- Portable Electronics: Smartphones, tablets, wearables, and portable medical devices to power low-noise components like sensors and display drivers.
- Communication Systems: RF transceivers, Bluetooth modules, and Wi-Fi devices to provide clean, stable power for sensitive analog front-ends.
- Industrial Sensors and Instrumentation: Precision measurement tools and industrial sensors to ensure accurate readings by minimizing power supply noise.
- Automotive Electronics: In-vehicle infotainment systems, ADAS sensors, and diagnostic equipment where reliable voltage regulation is critical.
- Consumer Electronics: Digital cameras, gaming consoles, and audio equipment to power low-voltage ICs and maintain signal integrity.
Application Circuits
1. Basic Fixed Output Voltage Regulation Circuit
Provides a stable fixed output voltage (e.g., 3.3V, 2.5V) for low-power components.
Components: Input capacitor (Cin, typically 1µF ceramic), output capacitor (Cout, 1µF ceramic or 10µF tantalum), and a load.
Operation: The input voltage (Vin, 2.5V to 6.5V) is regulated to a fixed output voltage (Vout) set by the device's internal trim.
Operation: The input voltage (Vin, 2.5V to 6.5V) is regulated to a fixed output voltage (Vout) set by the device's internal trim.
2. Adjustable Output Voltage Regulation Circuit
For applications requiring variable output voltages (0.8V to 5.5V), an external resistor divider sets the output.
Components: Cin, Cout, and two external resistors (R1 and R2).
Operation: The output voltage is determined by Vout = 0.8V * (1 + R1/R2).
Operation: The output voltage is determined by Vout = 0.8V * (1 + R1/R2).
3. Low-Noise Power Supply for RF/Analog Circuits
Minimizes noise in sensitive RF transceivers, ADCs, or audio components.
Components: Cin, Cout (low-ESR ceramic), and an optional RC filter.
Operation: The MAX2016ETI's inherent low noise is augmented by Cout and the RC filter.
Operation: The MAX2016ETI's inherent low noise is augmented by Cout and the RC filter.
4. Battery-Powered Device Circuit
Optimized for energy efficiency in portable devices.
Components: Cin, Cout, and a battery (e.g., 3.7V Li-ion).
Operation: The low quiescent current minimizes battery drain.
Operation: The low quiescent current minimizes battery drain.
5. Protected Power Supply with Overcurrent/Thermal Shutdown
Leverages built-in protection features for robust systems.
Components: Cin, Cout, and a load with variable current demands.
Operation: Limits output current during overloads and shuts down thermally if temperature exceeds ~165°C.
Operation: Limits output current during overloads and shuts down thermally if temperature exceeds ~165°C.
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