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IT1602 － 2A,
24V, 310KHz Async. Step-Down LED Driver
Description
IT1602 is a PWM step-down converter designed to meet maximum 2A
constant current for high power LED driving application, with a fixed
switching frequency of 310kHz and a wide input supply range of
3.6V~24V. The 0.25V low feedback voltage reduces the power dissipation
of the constant current setting resistor so that the high conversion
efficiency up to 94% can be achieved. Moreover, a built-in low RDS(ON)
power PMOSFET is also included to obtain a low conduction loss under
heavy load conditions.
Not only providing excellent line/load
regulations, IT1602 also features other functions, such as: external
ON/OFF control, cycle-by-cycle current limit, and thermal shutdown
protection. With the maximum duty cycle of 100%, IT1602 is also
suitable for low drop-out conditions. This device is available in
standard SOP-8L package.
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Features
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3.6V to 24V
Wide Input Voltage Range
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0.25V Low
Feedback Reference Voltage
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2A
Continuous Load Current Capability
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Up to 95%
Efficiency
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310kHz
Fixed Switching Frequency
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1.1mA/0.2uA
Supply/Shutdown Current
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Cycle-by-Cycle Current Limit
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100%
Maximum Duty Cycle
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Built-in
Low RDS(ON) Power PMOSFET
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Thermal
Shutdown
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Standard
SOP-8L Package
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Technology
Information:
 Data Sheet
Package:
SOP-8L
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