LM5169PDDAR

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LM5169PDDAR

IC REG BUCK ADJ 650MA 8SOPWR

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規格

Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 6V
Voltage - Input (Max) 120V
Voltage - Output (Min/Fixed) 1.2V
Voltage - Output (Max) 120V
Current - Output 650mA
Frequency - Switching 100kHz ~ 1MHz
Synchronous Rectifier Yes
Operating Temperature -40°C ~ 150°C (TJ)
Mounting Type Surface Mount
Package / Case 8-PowerSOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SO PowerPad
Base Product Number LM5169

概述

Description

The LM5169PDDAR is a high-performance, synchronous buck converter designed by Texas Instruments for step-down voltage regulation. It operates over a wide input voltage range, typically from 4.5V to 65V, making it suitable for various applications including industrial, automotive, and telecom. The device can deliver up to 2A of output current, and features a highly efficient architecture that helps minimize power loss and heat generation.
Key features include integrated high-side and low-side MOSFETs, adjustable output voltage, and a programmable switching frequency, which can be set between 100 kHz and 1 MHz. The LM5169PDDAR also includes protection features such as thermal shutdown, over-voltage protection, and current limit, ensuring reliable operation under various conditions. Its compact package and efficient design make it an ideal choice for space-constrained applications requiring robust power management solutions.

Features

The LM5169PDDAR is a high-voltage synchronous step-down regulator designed for efficient power conversion in various applications. Key features include:
1. Wide Input Voltage Range: Operates from 4.5V to 65V, accommodating a variety of input sources.
2. Output Current: Supports up to 3A continuous output current, suitable for high-performance applications.
3. High Efficiency: Achieves efficiencies up to 95% to minimize heat generation and improve system reliability.
4. Integrated Switches: Contains internal high-side and low-side MOSFETs, reducing component count and simplifying design.
5. Frequency Options: Offers adjustable switching frequencies up to 1MHz for flexibility in design.
6. Protection Features: Includes features like overcurrent protection, thermal shutdown, and UVLO (under-voltage lockout) for enhanced system safety.
7. Compensation: Built-in compensation allows for stable operation across a wide range of loads and input conditions.
8. Small Package: Available in a compact 20-Pin HTQFP package, facilitating space-constrained designs.
These features make the LM5169PDDAR ideal for automotive, industrial, and general-purpose power management applications.

Package

The LM5169PDDAR is packaged in a 20-pin HTQFN (Heat Sink Thin Quad Flat No-lead) type package. This package offers good thermal performance and is suitable for efficient power management applications.

Pinout

The LM5169PDDAR is a high-voltage synchronous buck regulator designed for step-down applications. It features a pin count of 16 pins.
Key functions of the pins include:
1. VIN (Pin 1): Input voltage.
2. SW (Pin 2, 3): Switch node for connection to the inductor.
3. GND (Pin 4): Ground reference.
4. COMP (Pin 5): Compensation network connection for stability.
5. RAMP (Pin 6): Connects to the ramp generator.
6. SS (Pin 7): Soft-start control pin.
7. CSN/ CSP (Pin 8, 9): Current sense pins for overcurrent protection.
8. PGND (Pin 10): Power ground.
9. SYNC (Pin 11): Synchronization input for the switching frequency.
10. FB (Pin 12): Feedback voltage input for regulation.
11. EN (Pin 13): Enable pin to turn the regulator on/off.
12. TRK (Pin 14): Tracking pin for sequencing.
13. BOOT (Pin 15): Bootstrap capacitor connection for gate drive.
14. PH (Pin 16): Phase compensation.
These functions support efficient power conversion in various applications.

Manufacturer

The LM5169PDDAR is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits, with a strong focus on analog and mixed-signal processing. The company is well-known for its innovative solutions in the fields of electronics, including power management, signal processing, and embedded systems. Founded in 1930, TI serves a wide range of industries, such as automotive, industrial, communications, and consumer electronics. Their products, including the LM5169PDDAR, are widely used in applications requiring efficient power conversion and management.

Application

The LM5169PDDAR is a high-efficiency, synchronous buck converter primarily used in point-of-load (POL) applications. Its application areas include industrial power supplies, telecommunications, automotive systems, and consumer electronics. It is suitable for powering microcontrollers, FPGAs, and DSPs, as well as other devices requiring a stable DC output. The device is ideal for applications needing high efficiency, compact size, and low output voltage regulation.

Equivalent

The LM5169PDDAR is a high-efficiency, synchronous buck converter. Equivalent products include:
1. TPS546D24 (Texas Instruments)
2. LTC7130 (Analog Devices)
3. MAX17501 (Maxim Integrated)
4. RTQ1321 (Richtek)
5. LT8640 (Analog Devices)
Ensure to compare specifications like input/output voltage range, current rating, and efficiency before substitution.

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