水下機器人3D打印機專用DCDC恒流IC
LED升降壓恒流驅(qū)動IC大功率可外掛MOS
Description
The AP5503 is a current mode DC/DC converter with
outside power NMOS designed to drive LEDs. The
AP5503 operates as a LED driver in buck, boost and
buck-boost mode. The LED current is externally programmable with a 120mV sense resistor. With a
500KHz operating frequency, the external inductor and
input/output capacitors can all be small. Dimming can
be either analog, PWM, or PWM converting to analog
with an external capacitor.
The AP5503 is available in MSOP-10 (FD) package.
Features
? High Voltage : VIN up to 60V, VOUT up to 60V
? Buck, Boost or Buck-Boost Operation
? Current Mode PWM with 500KHz and 200KHz
Switching Frequency
? Easy dimming : Analog, PWM or PWM Converting to Analog with One External Capacitor
? Soft Start to Avoid Inrush Current
? Programmable Over Voltage Protection to Limit
Output Voltage
? VIN Under Voltage Lockout and Thermal Shutdown
? MSOP-10 (FD) Package
Applications
? GPS, Portable DVD Backlight
? Desk Light and Room Lighting
? Industrial Display Backlight
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