BL8516
1.2A Step-down DC-DC Converter
DESCRIPTION
BL8516 is 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.
FEATURES
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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
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Operating Temperature Range: -40℃
~85℃
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Demo Board Available
APPLICATIONS
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Power source for hand-held
communication equipment, cameras,
video instruments such as VCRs,
camcorders.
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Power source for battery-powered
equipment.
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Power source for household electrical
appliance
ORDERING INFORMATION
BL8516
1 2 3
Code
Description
PIN CONFIGURATION
Product Classification
Marking
HF: Product
Code
XX: Output
Voltage
Adjustable
YY: LOT NO.
B: FAB Code
ZZ: Date Code
BL8516CD8TR
1
2
3
Temperature & Rohs:
C: -40~85°C, Pb Free Rohs Std.
8 7 6 5
HFXX
YYBZZ
1 2 3 4
Package Type:
D8: SOP-8
HF XX
YYBZZ
Packing Type:
TR: Tape & Reel (Standard)
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BELLING [ SHANGHAI BELLING CO., LTD. ]
