Buck Switching Regulator IC- LM2675M-ADJ

Buck Switching Regulator IC- LM2675M-ADJ


Regulator IC – LM2675M-ADJ

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Product Description

The LM2675 series of regulators are monolithic integrated DC-DC converter circuits built with a LMDMOS process. These regulators provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1-A load current with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, and an adjustable output version. Requiring a minimum number of external components, these regulators are simple to use and include patented internal frequency compensation and a fixed frequency oscillator. The LM2675 series operates at a switching frequency of 260 kHz, thus allowing smaller-sized filter components than what would be needed with lower frequency switching regulators. Because of its very high efficiency (>90%), the copper traces on the printed-circuit board are the only heat sinking needed.


Buck Switching Regulator IC- LM2675M-ADJ

1• Efficiency up to 96%

• Available in 8-Pin SOIC, PDIP, and 16-Pin WSON Package

• Requires only 5 External Components

• 3.3-V, 5-V, 12-V, and Adjustable Output Versions

• Adjustable Version Output Voltage Range: 1.21 V to 37 V

• ±1.5% Maximum Output Voltage Tolerance Over Line and Load Conditions

• Ensured 1-A Output Load Current

• Wide Input Voltage Range: 8 V to 40 V

• 260-kHz Fixed Frequency Internal Oscillator

• TTL Shutdown Capability, Low-Power Standby Mode

• Thermal Shutdown and Current Limit Protection


Part Status Not For New Designs
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage – Input (Min) 5V
Voltage – Input (Max) 40V
Voltage – Output (Min/Fixed) 21V
Voltage – Output (Max) 37V
Current – Output 1A
Frequency – Switching 260kHz
Synchronous Rectifier No
Operating Temperature 40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case – 8-SOIC(0.154″, 3.90mm Width)
Supplier Device Package 8-SOIC

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