The MA5603 is a monolithic synchronous buck regulator, and step-down converter designed for driving up to 10 series white LEDs from a 38V system input. The total LED driving current up to 2.5A , whic
GENERAL DESCRIPTION
The
MA5603 is a monolithic synchronous buck regulator, and step-down
converter designed for driving up to 10 series white LEDs from a 38V
system input. The total LED driving current up to 2.5A , which is
measured through an external current sense resistor. Its low 200mV
feedback voltage reduces power loss and improves efficiency. The MA5603
includes current limit, short circuit protection and thermal shutdown
protection preventing damage.
An internal soft-start prevents
inrush current at turn-on, This device, available in an SOP8L-EP(Exposed
pad) package, provides a very compact solution with minimal external
components.
FEATURES
- Wide 8V to 38V Operating Input Range
- Integrated two 140mΩ Power MOSFET Switches
- Feedback Voltage : 200mV
- Internal Soft-Start / VFB Over Voltage Protection
- Stable with Low ESR Ceramic Output Capacitors
- Fixed 240KHz Frequency
- Current Limit , Thermal Shutdown and Short Circuit Protections (SCP).
- Input Under/Over Voltage Lockout


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