LTC1728ES5-3.3

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LTC1728ES5-3.3

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Spécifications

Brand Analog Devices
Series LTC1728
Height 1 mm
Product Type Supervisory Circuits
Subcategory PMIC - Power Management ICs
Mounting Style SMD/SMT
Package / Case SOT-5
Operating Supply Current 15 uA
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Vue d'ensemble

Description

The LTC1728ES5-3.3 is a low-dropout (LDO) voltage regulator designed by Linear Technology (now part of Analog Devices). It provides a fixed output voltage of 3.3 volts and is housed in a small SOT-23 package, which is ideal for space-constrained applications. The component is particularly noted for its low quiescent current, making it suitable for battery-powered devices. It features a wide input voltage range and offers high output accuracy, along with short-circuit and thermal protection. These characteristics make it reliable for maintaining stable voltage in various electronic circuits, especially where power efficiency and size are critical.

Features

The LTC1728ES5-3.3 is a micropower, dual-input, single-output, low-dropout (LDO) regulator designed by Linear Technology (now part of Analog Devices). Key features include:
1. Dual Input Capability: It allows for switching between two independent input power sources, enhancing reliability and flexibility in power supply designs.

2. Low Dropout Voltage: This LDO provides a low dropout voltage, making it efficient for use in battery-powered applications where maintaining a low-voltage differential between the input and output is crucial.

3. Fixed 3.3V Output: The regulator outputs a stable 3.3V, suitable for many low-voltage digital circuits and embedded systems.

4. Micropower Operation: The device is designed for low quiescent current operation, which helps prolong battery life in portable applications.

5. Thermal Protection: Integrated thermal protection ensures the device shuts down in the case of overheating, offering additional safety and reliability.

6. Small Package: It is available in a compact 5-lead SOT-23 package, making it ideal for space-constrained applications.
Overall, the LTC1728ES5-3.3 is suited for applications requiring efficient power management with dual inputs, such as portable electronics and backup power systems.

Package

The LTC1728ES5-3.3 is packaged in a 5-lead SOT-23 package.

Pinout

The LTC1728ES5-3.3 is a micropower dual comparator with a reference in a 5-lead SOT-23 package. It is designed for use in 3.3V supply voltage systems. The device typically has a 5-pin configuration, which includes the following functions:
1. VCC (Pin 1): Power supply input.
2. GND (Pin 2): Ground.
3. OUT (Pin 3): Comparator output.
4. VIN1 (Pin 4): Non-inverting input of the first comparator.
5. VIN2 (Pin 5): Non-inverting input of the second comparator.
The device features a low quiescent current and is suitable for battery-operated devices. It integrates a precision reference and operates over a wide range of input voltages, making it versatile for various low-voltage applications.

Manufacturer

The manufacturer of the LTC1728ES5-3.3 is Analog Devices, Inc. Analog Devices is a multinational semiconductor company known for designing, manufacturing, and marketing a broad range of integrated circuits used in electronic equipment. The company specializes in data conversion and signal processing technology to meet the needs of various industries, including communications, automotive, industrial, and consumer electronics. Analog Devices is recognized for its high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits used in analog and digital signal applications.

Application

The LTC1728ES5-3.3 is a micropower supervisory circuit designed for monitoring power supplies in microprocessor-based systems. Its primary application areas include ensuring system reliability in portable electronics, embedded systems, and battery-operated devices by providing supply voltage supervision. It helps in power-fail warning, reset generation, and battery backup switching, making it ideal for use in smartphones, tablets, and other consumer electronics requiring stable power management.

Equivalent

The LTC1728ES5-3.3 is a micropower, low-dropout (LDO) voltage regulator from Analog Devices, providing a 3.3V output. Equivalent products include:
1. Microchip MCP1700-3302 - A low-dropout regulator offering similar voltage output and low current consumption.
2. Texas Instruments LP2980-3.3 - Known for low quiescent current and low-dropout performance.
3. ON Semiconductor NCP1117-3.3 - Features similar voltage regulation and dropout characteristics.
These alternatives should be verified for specific parameters like output current, dropout voltage, and package compatibility.

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