Overview
The TLV70018DDCR is a low-dropout (LDO) linear voltage regulator designed for stable, low-current, and low-noise power delivery in modern embedded and battery-powered systems. It is widely used in low-voltage microcontroller rails, sensor biasing circuits, and portable electronics, where low quiescent current, fast transient response, and clean power rails are required. The TLV70018DDCT is a tape-and-reel variant of this regulator suitable for automated assembly without affecting electrical performance.
Core Parameters
| Parameter | Specification |
|---|---|
| Output Voltage | 1.8 V (fixed) |
| Input Voltage Range | 2.0 V to 5.5 V |
| Maximum Output Current | Up to 200 mA |
| Quiescent Current | Typically ~35 µA |
| Dropout Voltage | ~180 mV at rated current |
| Output Noise | Low noise architecture |
| Package | SOT-23-5 (DDC) |
| Operating Temperature | –40 °C to +125 °C |
These parameters make the TLV70018DDCR ideal for low-voltage, low-power regulation, especially where battery life and noise performance are critical.
Features
- Fixed 1.8 V output with tight tolerance
- Ultra-low quiescent current for longer battery life
- Stable with ceramic output capacitors
- Low output noise suitable for analog/RF front ends
- Integrated current-limit and thermal protection
- Tape-and-reel packaging version available (TLV70018DDCT)
Typical Application Scenarios
- Power supply for low-voltage microcontrollers and digital cores
- Sensor biasing in portable IoT devices
- RF module and wireless front ends
- Wearables and handheld electronics
- Always-on systems requiring long shelf life
The TLV70018DDCR shares family heritage with the TLV70033DDCR, another low-noise regulator in the TI TLV700 series. While the TLV70018DDCR provides a fixed 1.8 V output, the TLV70033DDCR delivers 3.3 V, making both suitable for multi-rail embedded systems where efficient, low-noise power is required.
Performance Comparison
| Feature | TLV70018DDCR | Standard LDO Regulators | High-Current LDOs |
|---|---|---|---|
| Quiescent Current | Very Low (~35 µA) | Medium | High |
| Output Noise | Low | Varies | Moderate |
| Voltage Accuracy | High | Medium | Medium |
| Dropout | Low | Higher | Varies |
| Power Efficiency | High in low-power modes | Lower | Lower |
Compared to general regulators, the TLV70018DDCR provides better low-current efficiency and lower noise, making it more suitable for battery-powered and noise-sensitive applications.
Conclusion
The TLV70018DDCR delivers a compact, efficient, and stable solution for low-voltage power regulation. Its combination of low quiescent current, robust protection features, and fast transient performance makes it an excellent choice for modern embedded and portable systems.
Manufacturer Profile
Texas Instruments (TI) is a market leader in analog and embedded processing semiconductors. TI’s power management portfolio, including the TLV700 series, provides reliable, low-power voltage regulation solutions widely used in consumer, industrial, and IoT applications.
FAQ
Q1: What makes the TLV70018DDCR suited for low-power systems?
A: Its ultra-low quiescent current (~35 µA) and low dropout voltage help maximize battery life while delivering stable 1.8 V regulation.
Q2: What kind of output capacitor does this regulator require?
A: It is stable with standard ceramic capacitors, simplifying board design and reducing overall cost.
Q3: Where is TLV70018DDCR most commonly used?
A: It is commonly used in battery-powered devices, low-voltage MCU rails, and analog front ends where noise and power efficiency matter.
Q4: How can the quality of TLV70018DDCR be verified?
A: 7SEtronic adheres to a complete quality SOP, including label verification, visual inspection, and X-RAY analysis, to ensure product authenticity and reliability.
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