L5986TR Allicdata Electronics

L5986TR Integrated Circuits (ICs)

Allicdata Part #:

497-8503-2-ND

Manufacturer Part#:

L5986TR

Price: $ 0.81
Product Category:

Integrated Circuits (ICs)

Manufacturer: STMicroelectronics
Short Description: IC REG BUCK ADJ 2.5A 8VFQFPN
More Detail: Buck Switching Regulator IC Positive Adjustable 0....
DataSheet: L5986TR datasheetL5986TR Datasheet/PDF
Quantity: 4000
1 +: $ 0.81000
10 +: $ 0.78570
100 +: $ 0.76950
1000 +: $ 0.75330
10000 +: $ 0.72900
Stock 4000Can Ship Immediately
$ 0.81
Specifications
Voltage - Output (Min/Fixed): 0.6V
Base Part Number: L5986
Supplier Device Package: 8-VFQFPN (3x3)
Package / Case: 8-VFDFN Exposed Pad
Mounting Type: Surface Mount
Operating Temperature: -40°C ~ 150°C (TJ)
Synchronous Rectifier: No
Frequency - Switching: 250kHz ~ 1MHz
Current - Output: 2.5A
Voltage - Output (Max): 18V
Series: --
Voltage - Input (Max): 18V
Voltage - Input (Min): 2.9V
Number of Outputs: 1
Output Type: Adjustable
Topology: Buck
Output Configuration: Positive
Function: Step-Down
Part Status: Active
Packaging: Tape & Reel (TR) 
Description

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The L5986TR is a Switch Mode Step Up (Boost) Switching Regulator, a type of DC-DC converter designed to convert a low-voltage input to a higher-voltage output. As a switching regulator, it differs from a linear regulator, as it is more efficient and can handle higher load currents. This regulator integrates both current sense and thermal foldback features, allowing for high output current stability and system protection from over-temperature conditions, respectively. The L5986TR is designed for portable, battery-powered applications and is suited for automotive, home and industrial use.

Application Fields

The L5986TR is primarily targeted for use in portable, low-power applications. It is suitable for use in automotive, home and industrial applications where an input voltage of 3V to 6V is needed to be converted to a 5V output voltage. This regulator is ideal for driving high-power loads while avoiding the need for bulky transformers and external components.

Working Principle

The L5986TR is a non-synchronous switching regulator, comprising of a power PMOS switch, an inductor, and a Schottky diode. The device operates in a cyclical fashion - when the output voltage drops below a certain value, the power switch is turned on, at which point the current flowing through the inductor increases. Once the output voltage has risen sufficiently, the switch is shut off, allowing the current in the inductor to fall and generating the output voltage.

The device contains an internal voltage reference and a maximum duty cycle limit block, both of which monitor and control the output voltage. The current sense feature is adjustable and compares the sensed current in an external resistor with a fixed trimmed current, allowing for a stable output voltage even in case of large load changes. The thermal foldback feature protects the device from severe over-temperature conditions by gradually decreasing the output current until the temperature returns to a normal level.

The L5986TR is a robust and efficient solution for boosting low input voltages to higher output voltages. It provides excellent stability and excellent output current capability, making it an ideal choice for applications where a small, low-power supply is desired.

The specific data is subject to PDF, and the above content is for reference

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