LM2675MX-5.0/NOPB
LM2675 SIMPLE SWITCHER® Power Converter High Efficiency
1-A Step-Down Voltage Regulator
2.450 Stck auf Rolle / 2,- € Stck = 4.900,- € Gesamt
202411-005-236
1 Features
• 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
2 Applications
• Simple High Efficiency (>90%) Step-Down (Buck) Regulator
• Efficient Preregulator for Linear Regulators
• Positive-to-Negative Converter
3 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.