IC LM2596S-ADJ Buck Converter TO263-5
IC LM2596S-ADJ Buck Converter TO263-5
IC LM2596S-ADJ Buck Converter TO263-5
IC LM2596S-ADJ Buck Converter TO263-5

IC LM2596S-ADJ Buck Converter TO263-5

IC
ICLM2596S-ADJ
Part.No: LM2596S-ADJ/NOPB
€9.95
In Stock
Instant Shipping

The LM2596S-ADJ/NOPB by Texas Instruments is a highly popular Step-Down (Buck) DC/DC Converter (PMIC), designed to provide an adjustable output voltage with a load driving capability of up to 3A. Operating at a fixed switching frequency of 150 kHz, it offers high efficiency and requires a minimal number of external components (only 4), significantly simplifying power supply design. It is available in an industry-standard surface-mount (SMD) TO263-5 package.

 

LM2596S-ADJ/NOPB 3A Step-Down Voltage Regulator

The LM2596S-ADJ/NOPB is a power management integrated circuit (PMIC) that functions as a Step-Down (Buck) Switching Regulator. It efficiently steps down higher input voltages to a lower, adjustable output voltage. Its high switching frequency allows for the use of smaller and less expensive inductors compared to older generation converters, making it an ideal solution for compact, high-efficiency on-board power supplies.

Key Features

  • Input Voltage Range: Wide operating range from 4.5V to 40V.
  • Adjustable Output: Programmable output voltage from 1.2V to 37V.
  • Output Current: Continuous current delivery up to 3A with excellent line and load regulation.
  • Switching Frequency: Internal oscillator running at 150 kHz.
  • Protection: Built-in Thermal Shutdown and Current Limit protection mechanisms.
  • Standby Current: Exceptionally low standby power consumption, typically 80 μA.

Pinout Overview

The TO263-5 package (also known as D2PAK) offers excellent thermal dissipation through its exposed tab. The 5-pin configuration is as follows:

  • Pin 1 (VIN): Power supply input voltage.
  • Pin 2 (OUTPUT): Switching output (connects to the inductor and Schottky diode).
  • Pin 3 (GND): System ground (the package tab is also internally connected to GND).
  • Pin 4 (FEEDBACK): Feedback input to regulate the voltage (connects to the resistor divider).
  • Pin 5 (ON/OFF): Logic enable input (Active LOW - ground this pin for continuous operation).

Technical Specifications

IC Type DC/DC Step-Down (Buck) Converter
Brand Texas Instruments
Package TO263-5 (D2PAK) / SMD
Number of Pins 5
Input Voltage (Vin) 4.5V - 40V
Output Current (Iout) 3A (Maximum continuous)
Operating Temperature -40°C to +125°C

Typical Applications

  • High-efficiency step-down regulators in consumer and industrial electronics.
  • On-card switching regulators for local voltage generation (e.g., 5V or 3.3V from a 12V/24V bus).
  • Efficient pre-regulators for linear regulators.
  • Designing custom battery chargers and power supplies.
IC Case Style
TO263-5
16 other products in the same category:
Product added to wishlist
Product added to compare.