LM3488MMX

• LM3488Q is AEC-Q100 qualified and is in an automotive-grade manufacturing process
• 8-pin small SO8 (MSOP-8) package
• Peak current capability of 1A for internal push-pull drives
• Current limiting and thermal shutdown
• Frequency compensation optimization with capacitance and resistance
• Internal soft start
• Current mode operation
• Hysteresis undervoltage locking

illustrate

The LM3488 is a versatile low-side N-FET switching regulator high-performance controller. It is suitable for topologies that require low-side FETs, such as boost, flyback, SEPIC, etc., in addition, the LM3488 can be operated at very high switching frequencies, thereby reducing the overall solution size for use. The LM3488's switching frequency can be adjusted to use an external resistor or synchronize to an external clock at any value between 100kHz and 1MHz. Current mode control provides superior bandwidth and transient response, in addition to cycle-by-cycle current limiting. The output current can be passed through an external resistor.

LM3488 has been built, such as thermal shutdown, short circuit protection and overvoltage protection functions. The power-saving shutdown mode reduces the total supply current to 5μA and allows for power sequencing. Internal soft start limits the surge in the starting current.

Key specifications:

• Wide supply voltage range of 2.97V to 40V
• 100kHz to 1MHz adjustable and synchronized clock frequency
• ± 1.5% (overheated) internal reference
• 5μA Shutdown Current (Over-Temperature)

apply

• Distributed power systems
• Laptops, PDAs, digital cameras and other portable applications
• Offline power supply
• Stb