Texas Instruments

LM5085SD/NOPB  

DC DC Switching Controllers

The LM5085SD/NOPB is a high-efficiency synchronous step-down (buck) regulator from Texas Instruments. It is designed to provide a stable and regulated output voltage from a wide range of input voltages. Here is a brief description of the model, its features, and applications:

Description:

The LM5085SD/NOPB is a monolithic, high-efficiency synchronous step-down regulator that can operate from an input voltage range of 4.5V to 23V. It is available in a thermally enhanced PowerSON10 package. The device features a high-efficiency synchronous buck topology with a wide output voltage range of 0.6V to 5.5V.

Features:

1. High Efficiency: The LM5085SD/NOPB offers high efficiency up to 95%, which is ideal for battery-powered applications.
2. Wide Input Voltage Range: The device can operate from an input voltage range of 4.5V to 23V, making it suitable for various power supply applications.
3. Wide Output Voltage Range: The output voltage range is from 0.6V to 5.5V, providing flexibility for different output voltage requirements.
4. Synchronous Buck Topology: The synchronous buck topology allows for higher efficiency and lower component count compared to traditional linear regulators.
5. Thermally Enhanced PowerSON10 Package: The device is available in a compact and thermally efficient package, which helps in better heat dissipation.
6. Programmable Soft Start: The LM5085SD/NOPB features a programmable soft-start function to minimize inrush current during power-up.
7. Protection Features: The device includes over-current protection (OCP), over-temperature protection (OTP), and open-loop protection to ensure safe and reliable operation.

Applications:

1. Portable Devices: The LM5085SD/NOPB is suitable for powering portable devices such as smartphones, tablets, and wearable devices.
2. Industrial Applications: The device can be used in industrial applications where a stable and regulated output voltage is required, such as in motor controllers and sensor interfaces.
3. Medical Devices: The LM5085SD/NOPB can be used in medical devices that require a stable power supply, such as portable medical instruments and wearable medical devices.
4. Consumer Electronics: The device can be used in various consumer electronics applications, such as power supplies for cameras, gaming consoles, and home automation systems.

In summary, the LM5085SD/NOPB is a high-efficiency synchronous step-down regulator from Texas Instruments, offering a wide input voltage range, high efficiency, and various protection features. It is suitable for a wide range of applications, including portable devices, industrial applications, medical devices, and consumer electronics.

LM5085SD/NOPB Documents

Download datasheets and manufacturer documentation for LM5085SD/NOPB

Images :

Mechanical Outline Drawing      

PCN :

Change Notification (PDF)       Product Change Notification 2024-06-28 (PDF)      

Models :

LM5085SD/NOPB Symbol & Footprint by SnapMagic      

Product Catalogs :

Wide VIN DC/DC Power Solutions: Industrial, Automotive, and Comms Applications      

Application Notes :

Designing Non-Invert Buck-Boost (Zeta) Cnvrts w/a Buck P-FET Cntrl       Transient Response versus Ripple - An Analysis of Ripple Injection Techniques      

Technical Resources :

LM5085 TINA-TI Load Transient Reference Design (Rev. A)       LM5085 TINA-TI Startup Reference Design (Rev. A)      

SPICE Models :

LM5085 Unencrypted PSpice Transient Model       LM5085 PSpice Unencrypted Transient Model (Rev. B)       LM5085 PSpice Transient Model (Rev. A)       Export TINA-TI Transient Spice Model from WEBENCH (Rev. A)       LM5085 TINA-TI Transient Spice Model (Rev. A)