LTC3404IMS8#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency - Low quiescent current - Small package size - Wide input voltage range

Package: MSOP-8

Essence: The LTC3404IMS8#PBF is a power management IC designed for various applications that require efficient power conversion and low power consumption.

Packaging/Quantity: The LTC3404IMS8#PBF is available in tape and reel packaging, with 2500 units per reel.

Specifications

The LTC3404IMS8#PBF has the following specifications:

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 1.2V to VIN
• Maximum Output Current: 600mA
• Quiescent Current: 16µA
• Efficiency: Up to 95%
• Switching Frequency: 1.5MHz
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LTC3404IMS8#PBF has the following pin configuration:

```

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| | --| VIN GND |-- Pin 1 --| SW FB |-- Pin 2 --| EN VOUT|-- Pin 3 --| PG LX |-- Pin 4 |___________| ```

Pin 1: VIN - Input voltage pin

Pin 2: SW - Switch pin connected to an external inductor

Pin 3: EN - Enable pin for turning the device on/off

Pin 4: PG - Power Good pin indicating output voltage regulation

Pin 5: LX - Internal switch node connection

Functional Features

The LTC3404IMS8#PBF offers the following functional features:

1. High Efficiency: The IC provides high efficiency power conversion, minimizing energy loss during operation.

2. Low Quiescent Current: With a quiescent current of only 16µA, the LTC3404IMS8#PBF ensures minimal power consumption in standby or low-load conditions.

3. Wide Input Voltage Range: The IC can accept input voltages ranging from 2.5V to 5.5V, making it suitable for a wide range of applications.

4. Small Package Size: The MSOP-8 package allows for compact and space-efficient designs.

Advantages and Disadvantages

Advantages: - High efficiency power conversion - Low quiescent current for reduced power consumption - Wide input voltage range for versatility - Compact package size for space-constrained designs

Disadvantages: - Limited maximum output current (600mA)

Working Principles

The LTC3404IMS8#PBF operates as a synchronous buck regulator, converting a higher input voltage to a lower output voltage with high efficiency. It utilizes pulse-width modulation (PWM) to control the duty cycle of the internal switch, regulating the output voltage based on feedback from the FB pin. The EN pin allows for device enable/disable, while the PG pin indicates the status of the output voltage regulation.

Detailed Application Field Plans

The LTC3404IMS8#PBF is commonly used in various battery-powered applications, portable devices, and low-power systems that require efficient power management. Some specific application fields include:

1. Mobile Devices: Smartphones, tablets, and wearable devices benefit from the LTC3404IMS8#PBF's low power consumption and small form factor.

2. IoT Devices: Internet of Things (IoT) devices often operate on limited power sources, making the LTC3404IMS8#PBF an ideal choice for power management.

3. Industrial Sensors: Battery-powered sensors used in industrial applications can utilize the LTC3404IMS8#PBF to optimize power efficiency and extend battery life.

4. Medical Devices: Portable medical devices, such as glucose meters or wearable health monitors, can benefit from the LTC3404IMS8#PBF's low power consumption and compact size.

Detailed and Complete Alternative Models

1. LT3480: Similar to the LTC3404IMS8#PBF, the LT3480 is a synchronous buck regulator with a wide input voltage range and high efficiency. It offers a higher maximum output current of 1A.

2. LTC3412: The LTC3412 is another power management IC with similar characteristics to the LTC3404IMS8#PBF. It features a higher switching frequency of 2MHz and a lower quiescent current of 10µA.

3. LT8610: The LT8610 is a high-efficiency synchronous buck regulator with a wide input voltage range and a maximum output current of 2.5A. It offers advanced features such as adjustable soft-start and programmable power good indicator.

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