BL8519 Datasheet | BELLING

Built-in 2A Power MOSFET Step-down DC-DC Converter DESCRIPTION BL8519 is a current mode PWM step-down DC-DC converter that has an internal 2A power switch. It has a wide input voltage range of 3.6V to 20V, which make it suitable for regulating a wide variety of power sources. BL8519 is made up of a PWM control circuit, a reference voltage unit, an error amplifier, a protection circuit, Chip Enable circuit, and under voltage lockout circuit. A low ripple high efficiency step-down DC-DC converter can be easily assembled by this IC with minimum external ponents: an inductor, a diode, capacitors and resistors. Desired output voltage can be achieved by adjusting the value of external resistors. The BL8519 has cycle-by-cycle current limit circuitry; current limiting provides protection against shorted output. The low current (<5u A) shutdown provides plete output disconnect, enabling easy power management in battery powered systems. Features - Range of Input Voltage: 3.6V~20V - Built-in 90mΩ Power MOSFET - <5µA Shutdown Current - Oscillation Frequency: 500KHz - High efficiency: 90% - 2.5A Peak Current Limit Cycle by Cycle - Operating Temperature Range: -40℃ ~85℃ - Demo Board Available APPLICATIONS - Power source for portable munication equipment, cameras, video instruments such as VCRs, camcorders. - Power source for battery-powered equipment. - Power source for household electrical appliance TYPICAL APPLICATION .belling..cn ORDERING INFORMATION PIN CONFIGURATION BL8519 1 2 3 Code Description Temperature & Rohs: C: -40~85°C, Pb Free Rohs Std. Package Type: D8: SOP-8 Packing Type: TR: Tape & Reel...