Overview
The MCP1700T-3302E/MB is a low‑dropout (LDO) linear voltage regulator designed for compact power management in embedded and low‑power electronic systems. It is widely used in microcontroller power rails, sensor modules, and portable devices, where stable 3.3V output, low quiescent current, and minimal external components are required.
Core Parameters
| Parameter | Specification |
|---|---|
| Output Voltage | 3.3 V ±2% |
| Input Voltage Range | 2.3 V to 6.0 V |
| Output Current | Up to 250 mA |
| Quiescent Current | 2.0 µA (typical) |
| Dropout Voltage | ~178 mV at 250 mA |
| Package | SOT‑23 (MB) |
| Operating Temperature | –40°C to +125°C |
These parameters make the device suitable for low‑power embedded systems, especially where high efficiency and stable 3.3V regulation are critical.
Features
- Fixed 3.3 V output with tight tolerance
- Ultra‑low quiescent current (typical 2 µA)
- Low dropout voltage for efficient power conversion
- Stable with ceramic capacitors (1 µF recommended)
- Built‑in current limiting and thermal shutdown protection
- Small SOT‑23 package for space‑constrained designs
Typical Application Scenarios
- Sensor and analog module power supply
- Portable and battery‑powered electronics
- IoT and wearable device power regulation
- Low‑noise power supply for communication modules
The MCP1700T-3302E/MB low-dropout regulator delivers a precise 3.3V output, making it an excellent choice for powering microcontrollers like the PIC16F676‑I/P in a wide range of embedded applications.
Performance Comparison
| Feature | MCP1700T-3302E/MB | Standard LDO | High‑Current LDO |
|---|---|---|---|
| Quiescent Current | Very Low (2 µA) | Medium | High |
| Output Accuracy | ±2% | ±5% | ±1–2% |
| Dropout Voltage | Low | Higher | Varies |
| Package | SOT‑23 | Larger | Larger |
| Power Efficiency | High (low IQ) | Lower | Lower |
Compared to typical LDO regulators, the MCP1700T-3302E/MB provides significantly lower quiescent current and efficient 3.3V regulation in small packages, making it ideal for battery‑powered and energy‑sensitive applications.
Conclusion
The MCP1700T-3302E/MB is a compact, efficient, and reliable solution for generating a stable 3.3V power rail in low‑power embedded and portable designs. Its combination of low quiescent current, minimal external components, and robust protection features make it ideal for microcontroller, sensor, and IoT applications.
Manufacturer Profile
Microchip Technology Inc. is a global leader in microcontrollers, analog, and memory products. The company’s power management ICs, including the MCP1700 series, are widely used in consumer, industrial, and automotive systems for their reliability, long‑term availability, and extensive application support.
FAQ
Q1: What makes MCP1700T-3302E/MB suitable for microcontroller power rails?
A: Its ultra‑low quiescent current and tight 3.3V regulation provide stable power with minimal battery drain, which is ideal for microcontroller systems such as PIC16F676‑I/P.
Q2: What input voltage range does this regulator support?
A: The MCP1700T-3302E/MB supports input voltages from 2.3 V to 6.0 V, allowing it to work with various battery and supply configurations.
Q3: In what type of devices is this LDO commonly used?
A: It is commonly used in portable electronics, IoT devices, sensor modules, and embedded control systems.
Q4: How can the quality of MCP1700T-3302E/MB be verified?
A: 7SEtronic has a complete quality inspection SOP covering label verification, visual inspection, and X‑ray analysis, which can be used as a reference for ensuring authenticity and quality.
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