LTC1923EGN#PBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current, Wide Input Voltage Range
• Package: 16-Lead SSOP
• Essence: DC/DC Converter
• Packaging/Quantity: Tube/25 pieces per tube

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Switching Frequency: 1MHz
• Quiescent Current: 30µA
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC1923EGN#PBF has a 16-lead SSOP package with the following pin configuration:

1. VOUT
2. SW
3. GND
4. FB
5. EN
6. VCC
7. PGND
8. LX
9. LX
10. LX
11. LX
12. LX
13. LX
14. LX
15. LX
16. LX

Functional Features

• High efficiency synchronous step-down DC/DC converter
• Low quiescent current for improved power efficiency
• Wide input voltage range allows for versatile applications
• Adjustable output voltage for flexibility in design
• Internal compensation simplifies external component count
• Soft-start and current limit protection features

Advantages and Disadvantages

Advantages

• High efficiency operation reduces power consumption
• Low quiescent current extends battery life
• Wide input voltage range accommodates various power sources
• Compact package size saves board space
• Internal compensation simplifies design complexity

Disadvantages

• Limited maximum output current
• Requires external components for proper operation
• Higher cost compared to non-integrated solutions

Working Principles

The LTC1923EGN#PBF is a synchronous step-down DC/DC converter that efficiently converts a higher input voltage to a lower output voltage. It utilizes a high-frequency switching technique to minimize power losses and maximize efficiency. The internal control circuitry adjusts the duty cycle of the switching transistor to regulate the output voltage according to the feedback signal. The device also incorporates protection features such as soft-start and current limit to ensure safe and reliable operation.

Detailed Application Field Plans

The LTC1923EGN#PBF is commonly used in various applications, including:

1. Battery-powered devices: Portable electronics, handheld instruments, and wireless communication devices benefit from the low quiescent current and high efficiency of the LTC1923EGN#PBF.
2. Industrial equipment: The wide input voltage range and compact package make it suitable for industrial automation systems, motor control, and sensor networks.
3. Automotive electronics: The LTC1923EGN#PBF can be employed in automotive infotainment systems, advanced driver-assistance systems (ADAS), and lighting control modules.

Detailed and Complete Alternative Models

1. LTC1923IGN#PBF: 16-Lead PDIP package variant of the LTC1923EGN#PBF.
2. LTC1923CGN#PBF: 16-Lead SSOP package variant with extended temperature range.
3. LTC1923ES6#TRMPBF: 6-Lead ThinSOT package variant for space-constrained applications.

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