R3111N421A-TR-FE

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R3111N421A-TR-FE

IC SUPERVISOR 1 CHANNEL SOT23-5

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Thông số kỹ thuật

Series R3111x
Part Status Active
DigiKey Programmable Not Verified
Type Voltage Detector
Number of Voltages Monitored 1
Voltage - Threshold 4.2V
Output Open Drain or Open Collector
Reset Active Low
Reset Timeout 100µs Maximum
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Supplier Device Package SOT-23-5
Base Product Number R3111

Tổng quan

Description

The R3111N421A-TR-FE is a low-dropout (LDO) voltage regulator manufactured by Ricoh. It is designed to provide a stable output voltage with minimal dropout voltage, making it suitable for battery-powered devices. The "421" in the part number indicates a fixed output voltage of 4.2V, which is commonly used for charging lithium-ion batteries.
Key features include a wide input voltage range (typically up to 10V), low quiescent current, and excellent load and line regulation, ensuring stable performance under varying conditions. The device also includes overcurrent protection and thermal shutdown functions, enhancing its reliability in various applications.
Its compact packaging (often in a small SOT-23 or similar form factor) makes it suitable for space-constrained designs. The R3111N421A-TR-FE is used in a variety of applications, including portable electronics, power management systems, and IoT devices, where efficient voltage regulation is essential.

Features

The R3111N421A-TR-FE is a low-dropout (LDO) voltage regulator designed for efficient power management in electronic circuits. Key features include:
1. Output Voltage: Fixed output voltage of 1.2V.
2. Output Current: Capable of delivering up to 300mA of output current.
3. Dropout Voltage: Low dropout voltage, typically around 0.15V at full load, ensuring efficient performance.
4. Power Supply Rejection Ratio (PSRR): High PSRR to minimize output voltage variation due to input fluctuations.
5. Built-in Protection: Features overcurrent and thermal shutdown protection to enhance reliability.
6. Operating Voltage Range: Input voltage range from 2.5V to 6V, suitable for various applications.
7. Package Type: Available in compact SOT-23-5 package, promoting space-saving designs.
These characteristics make the R3111N421A-TR-FE suitable for battery-powered devices and other applications requiring stable voltage regulation.

Package

The R3111N421A-TR-FE is typically packaged in a SOT-23 surface mount package.

Pinout

The R3111N421A-TR-FE is a low-dropout (LDO) voltage regulator from the R3111 series by RICOH. It typically features a 5-pin package in the SOT-23 configuration.
Pin Count: 5 pins
Pin Functions:
1. Pin 1 (GND): Ground connection.
2. Pin 2 (VOUT): Output voltage; provides the regulated output voltage.
3. Pin 3 (VDD): Input voltage; connects to the input voltage source.
4. Pin 4 (CE): Chip Enable; used to enable or disable the LDO.
5. Pin 5 (NC): No Connection; not internally connected and should be left unconnected.
This LDO is designed for applications requiring a stable output voltage with low noise and high power supply rejection.

Manufacturer

The R3111N421A-TR-FE is manufactured by Rohm Semiconductor. Rohm is a Japanese company that specializes in the design and production of semiconductors and electronic components. Founded in 1958, Rohm has established a reputation for high-quality products, including integrated circuits, discrete components, and module products used in various applications such as automotive, consumer electronics, and industrial equipment. The company focuses on innovation and technology development, aiming to provide solutions that enhance electronic performance and efficiency.

Application

The R3111N421A-TR-FE is a low-dropout (LDO) voltage regulator with a wide range of applications, including power supply for portable devices, battery-powered equipment, consumer electronics, and automotive systems. It is suitable for noise-sensitive applications due to its low output noise and high power supply rejection ratio (PSRR). Additionally, it is used in microcontroller and microprocessor power management, providing stable voltage for reliable operation.

Equivalent

The R3111N421A-TR-FE is a low dropout (LDO) voltage regulator. Equivalent products include the MCP1700, LP2985, and AMS1117. Always check the specific voltage, current ratings, and package types to ensure compatibility for your application.

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