BL8516 BL8516is a current mode PWM step-down
DC-DC converter, which has an internal 2A
power switch. It has the wide input voltage
range of 3.6V to 20V, so it can suit for
regulating a wide variety of power source.
BL8516 use bipolar technology and make 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
composed of this IC with only several
external components, or an inductor, a diode
and capacitors. Output Voltage can be
adjusted with external resistors.
The BL8516 has the cycle-by-cycle current
limit circuit; current limiting provides
protection against shorted output. The low
current (<1uA) shutdown provides complete
output disconnect, enabling easy power
management in battery powered systems.
FEATURESBL8516 BL8516
◆ Range of Input Voltage: 3.6V~20V
◆ Built-in NPN switch
◆ <1μA Shutdown Current
◆ Oscillation Frequency: 1.2MHz
◆ High efficiency: 90%
◆ High Accuracy Output Voltage: ± 2%
◆ Low Temperature-Drift Coefficient of
Output Voltage: Type: ± 100ppm/°C
◆ Operating Temperature Range: -40℃
~85℃
◆ Demo Board Available
APPLICATIONSBL8516 BL8516
◆ Power source for hand-held
communication equipment, cameras,
video instruments such as VCRs,
camcorders.
◆ Power source for battery-powered
equipment.
◆ Power source for household electrical
appliance