LTC1732EMS-4.2#PBF

Product Overview

Use

This product is primarily used for regulating and controlling power supply in various electronic devices and systems.

Characteristics

Input Voltage Range: 2.7V to 6V
Output Voltage: 4.2V
Package Type: MSOP-10
Operating Temperature Range: -40°C to 85°C
Efficiency: Up to 95%
Quiescent Current: 20µA (typical)

Package and Quantity

LTC1732EMS-4.2#PBF is available in an MSOP-10 package. It is typically sold in reels or tubes containing a specific quantity, usually around 250 units per reel.

Specifications

Input Voltage Range: 2.7V to 6V
Output Voltage: 4.2V ±1%
Maximum Output Current: 1.5A
Dropout Voltage: 300mV at 1A
Quiescent Current: 20µA (typical)
Shutdown Current: <1µA
Switching Frequency: 550kHz
Soft-Start Time: 1ms
Overtemperature Protection: Yes
Short-Circuit Protection: Yes
Thermal Resistance: 45°C/W (junction-to-ambient)

Pin Configuration

The LTC1732EMS-4.2#PBF IC has the following pin configuration:

VIN: Input voltage pin
GND: Ground reference pin
SHDN: Shutdown control pin
SS: Soft-start capacitor connection pin
FB: Feedback voltage pin
VOUT: Output voltage pin
PGND: Power ground pin
SW: Switching node pin
COMP: Compensation pin
BST: Bootstrap capacitor connection pin

Functional Features

Wide Input Voltage Range: The LTC1732EMS-4.2#PBF can operate within a wide input voltage range of 2.7V to 6V, making it suitable for various power supply applications.
High Efficiency: With an efficiency of up to 95%, this IC minimizes power losses and maximizes energy conversion.
Low Quiescent Current: The typical quiescent current of 20µA ensures minimal power consumption during standby or idle modes.
Overtemperature and Short-Circuit Protection: The LTC1732EMS-4.2#PBF incorporates built-in protection mechanisms to safeguard against overtemperature conditions and short-circuits, enhancing the reliability of the power management system.

Advantages and Disadvantages

Advantages

Wide input voltage range allows for versatile application scenarios.
High efficiency reduces power wastage and extends battery life.
Low quiescent current minimizes power consumption during standby.
Integrated protection features enhance system reliability.

Disadvantages

Limited output voltage options (specifically designed for 4.2V output).
Thermal resistance may require additional heat dissipation measures in high-power applications.

Working Principles

The LTC1732EMS-4.2#PBF operates as a step-down (buck) switching regulator. It utilizes pulse-width modulation (PWM) techniques to regulate the output voltage. The input voltage is stepped down to the desired output voltage using an internal power switch and inductor. The feedback mechanism continuously adjusts the duty cycle of the switch to maintain a stable output voltage despite variations in input voltage and load conditions.

Detailed Application Field Plans

The LTC1732EMS-4.2#PBF is widely used in various applications, including but not limited to: - Battery-powered devices - Portable electronic equipment - Industrial control systems - Automotive electronics - Telecommunications equipment

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the LTC1732EMS-4.2#PBF include: - LTC1731EMS-4.2#PBF - LTC1733EMS-4.2#PBF - LTC1734EMS-4.2#PBF - LTC1735EMS-4.2#PBF

These models offer similar functionality and characteristics, with slight variations in specifications and package types.

In conclusion, the LTC1732EMS-4.2#PBF is a versatile integrated circuit designed for power management applications. Its wide input voltage range, high efficiency, and built-in protection features make it suitable for various electronic devices and systems. While it has some limitations, such as limited output voltage options, it offers reliable performance and can be used in diverse application fields.

技術ソリューションにおける LTC1732EMS-4.2#PBF の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of LTC1732EMS-4.2#PBF in technical solutions:

Q: What is the LTC1732EMS-4.2#PBF? A: The LTC1732EMS-4.2#PBF is a specific model of a low-power, high-efficiency synchronous buck regulator.
Q: What is the input voltage range for LTC1732EMS-4.2#PBF? A: The input voltage range for LTC1732EMS-4.2#PBF is typically between 2.25V and 6V.
Q: What is the output voltage of LTC1732EMS-4.2#PBF? A: The output voltage of LTC1732EMS-4.2#PBF is fixed at 4.2V.
Q: What is the maximum output current of LTC1732EMS-4.2#PBF? A: The maximum output current of LTC1732EMS-4.2#PBF is typically around 500mA.
Q: Can LTC1732EMS-4.2#PBF be used in battery-powered applications? A: Yes, LTC1732EMS-4.2#PBF is suitable for battery-powered applications due to its low-power and high-efficiency characteristics.
Q: Is LTC1732EMS-4.2#PBF capable of handling load transients? A: Yes, LTC1732EMS-4.2#PBF has excellent load transient response, making it suitable for applications with varying power demands.
Q: Does LTC1732EMS-4.2#PBF have built-in protection features? A: Yes, LTC1732EMS-4.2#PBF includes features like overcurrent protection, thermal shutdown, and short-circuit protection.
Q: Can LTC1732EMS-4.2#PBF operate in a wide temperature range? A: Yes, LTC1732EMS-4.2#PBF is designed to operate reliably in a temperature range of -40°C to 125°C.
Q: What type of package does LTC1732EMS-4.2#PBF come in? A: LTC1732EMS-4.2#PBF is available in a small MSOP-10 package, which is suitable for space-constrained applications.
Q: Are there any application notes or reference designs available for LTC1732EMS-4.2#PBF? A: Yes, Linear Technology (now part of Analog Devices) provides application notes and reference designs that can help with the implementation of LTC1732EMS-4.2#PBF in various technical solutions.

Please note that the answers provided here are general and may vary depending on specific requirements and use cases. It is always recommended to refer to the datasheet and relevant documentation for accurate information.