Source and Sink, 2A, Fast Transient Response Linear Regulator CXLD64158 linear regulator is designed to provide a regulated voltage with bi-direction output current for DDRSDRAM termination voltage

   产品概述 返回TOPwiN嘉泰姆

The CXLD64158 linear regulator is designed to provide a regulated voltage with bi-direction output current for DDRSDRAM termination voltage. The CXLD64158 integrates two power transistors to source or sink load current up to 2A. It also features internal soft-start, current-limit, thermal shutdown and enable control functions into a single chip. The internal soft-start controls the rising rate of the output voltage to prevent inrush current during start-up. The current-limit circuit detects the output current and limits the current during short-circuit or current overload conditions. The on-chip thermal shutdown provides thermal protection against any combination of overload that would create excessive junction temperatures. The output voltage of CXLD64158 is regulated to track the voltage on VREF pin. A proper resistor divider connected to VIN, GND, and VREF pins is used to provide a half voltage of VIN to VREF pin. In addition, connect an external ceramic capacitor and an open-drain transistor to VREF pin for external soft-start and shutdown control. Pulling and holding the voltage on VREF below the enable voltage threshold shuts down the output. The output of CXLD64158 will be high impedance after being shut down by VREF or the thermal shutdown function.

   产品特点 返回TOPwiN嘉泰姆

· Provide Bi-direction Current wiN嘉泰姆

 - Sourcing or Sinking Current Up to 2A wiN嘉泰姆

· Built-in Soft-Start wiN嘉泰姆

· Power-On-Reset Monitoring on VCNTL Pins wiN嘉泰姆

· Fast Transient Response wiN嘉泰姆

· Stable with Ceramic Output Capacitors wiN嘉泰姆

· ±10mV High System Output Accuracy Over Load and Temperature Ranges wiN嘉泰姆

· Adjustable Output Voltage by External Resistors wiN嘉泰姆

· Current-Limit Protection wiN嘉泰姆

· On-Chip Thermal Shutdown wiN嘉泰姆

· Shutdown for Standby or Suspend Mode wiN嘉泰姆

· Simple SOP-8 and SOP-8 with Exposed Pad (SOP-8P) Packages wiN嘉泰姆

· Lead Free and Green Devices Available (RoHS Compliant)wiN嘉泰姆

   应用范围 返回TOPwiN嘉泰姆

· DDRII/III/IV SDRAM Termination Voltage wiN嘉泰姆

· Motherboard and VGA Card Power Supplies wiN嘉泰姆

· Setop Box wiN嘉泰姆

· Low Power DDR3 DDRIII/IVwiN嘉泰姆

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