LM22670MRX-ADJ

• Wide input voltage range: 4.5V to 42V
• Internally compensated voltage mode control
• Ceramic capacitors with stable low ESR
• 120 mOhm N-channel MOSFET - 263 thin package
• The 100 mOhm N-channel MOSFETs are available in a PSOP-8 package
• Output voltage options:

• (refers to low as 1.285V output)

• -5.0 (when output fixed at 5V)
• ± 1.5% feedback reference accuracy
• The switching frequency is 500kHz
• -40°C to 125°C operating junction temperature range
• Adjustable soft-start
• Adjustable current limit
• Integrated start-up diode
• Full WEBENCH ® enable
• Buck and reversed buck boost applications

illustrate

The regulator's LM22673 series microcontrollers provide a buck active-acting (buck) switching regulator that drives up to 3A of superior voltage and load regulation characteristics for all integrated circuits. High efficiency ("90%) is achieved through the use of N-channel MOSFETs with low resistance. The series consists of a fixed 5V output and adjustable version.

In simple switches ® The concept provides an easy-to-use complete design using a minimum number of external components and state the WEBENCH ® Design tools. WEBENCH of National Semiconductor ® Tools include functions for external component calculation, electrical simulation, thermal simulation, etc., and build-IT boards for easy design. The clock switching frequency is made up of an internal fixed frequency oscillator that operates at 500 kHz. The LM22673 series also features built-in thermal shutdown and current limiting. The current limit threshold is adjustable with an external resistor. An adjustable soft-start function provides the selection of an appropriate external soft-start capacitor.

apply

• Industrial control
• Telecommunications and data communication systems
• Embedded systems
• Automotive telematics and body electronics
• Conversion consists of standard 24V, 12V and 5V input rails