Semtech Corporation SC2422A
The SC2422A biphase, current mode controller is designed to work with Semtech smart synchronous drivers, such as the SC1205, SC1305 or the SC1405 to provide the DC/DC converter solution for the most demanding Micro-processor applications. The DAC step size and range are programmable with external components thus allowing compliance with new and emerging VID ranges.| Part No. | SC2422A |
|---|---|
| Datasheet | SC2422A Download |
| Manufacturer |  Semtech Corporation |
| Description | BIPHASE CURRENT MODE CONTROLLER |
| Buy | Stock & Price |
DESCRIPTION
Input current rather than output current sensing is used to guarantee precision phase to phase current matching using a single sense resistor on the input power line. Accurate current sharing and pulse by pulse current limit are implemented without the power loss and transient response degradation associated with output current sense methods. Two phase operation allows significant reduction in input/output ripple while enhancing transient response. A novel approach implements active droop, minimizing output capacitor requirements during load transients. This avoids the pitfalls of the passive droop implementation. This feature also allows easy implementation of N+1 redundancy and current sharing among modules. Programmable Under Voltage Lockout assures proper start-up and shutdown by synchronizing the controller to the driver supply. Wide PWM frequency range allows use of low profile, surface mount components.FEATURES
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● Precision, pulse by pulse phase c...
