Semtech | SC4501STDEVB

The SC4501 is a high-frequency current-mode step-up switching regulator with an integrated 2 A power transistor. Its high switching frequency (programmable up to 2 MHz) allows the use of tiny surface-mount external passive components.

Programmable soft-start eliminates high inrush current during start-up. The internal switch is rated at 32 V making the converter suitable for high voltage applications such as Boost, SEPIC and Flyback. The operating frequency of the SC4501 can be set with an external resistor. The ability to set the operating frequency gives the SC4501 design flexibilities. A dedicated COMP pin allows optimization of the loop response. The SC4501 is available in thermally enhanced 8-Pin MSOP and 10-pin MLPD packages.

Key Features:

• Low saturation voltage switch: 220 mV at 2 A
• Constant switching frequency current-mode control
• Programmable switching frequency up to 2 MHz
• Soft-Start function.
• Input voltage range from 1.4 V to 16 V
• Output voltage up to 32 V
• Low shutdown current
• Adjustable undervoltage lockout threshold
• Small low-profile thermally enhanced packages

 Application:

• Flat screen LCD bias supplies
• TFT bias supplies
• XDSL power supplies
• Medical equipment
• Digital video cameras
• Portable devices
• White LED power supplies

To learn more about SC4501 product family, Click Here