Cookie use on this website

We use cookies to ensure that we can provide you with the best experience on our website. By using our website, you are consenting to the use of cookies as set out in our policy. More Info

Categories
Batteries & Accessories
Cases & Enclosures
Circuit Protection
Computing
Connectors
Displays
Frequency Control
Hardware
Optoelectronics
Passives
Power Supplies
RF Products
Semiconductor Discretes
Semiconductors
Sensors & Transducers
Sounders & Buzzers
Switches & Relays
Test & Measurement
Thermal Management
Tools & Production Aids
Wireless Products

DDR Bus Termination Regulator from Diodes Incorporated handles upgrades to DDR4

 Diodes Incorporated has introduced a low-dropout linear regulator capable of generating the bus termination voltages needed by DDR 2, 3, 3L and 4 SDRAM memory systems.

For applications including next generation set-top boxes, mother boards and graphics cards, the AP2303 continuously sources and sinks current up to 1.75A and provides a tightly regulated VTT output voltage to DDR standards with an accuracy of ±2% up to full load.

The required DDR memory termination supply is set via a simple external resistor network and is output via a standard MLCC ceramic capacitor that helps simplify assembly processes and reduce component cost and PCB size.

The regulator is offered in a choice of space-saving 8-pin SO and PSOP packages and operates from a recommended input voltage range of 1.2V to 5.5V. Ambient operating temperature range is -40°C to +85°C.

To minimise inrush currents induced by large capacitive loads the AP2303 offers a flexible soft-start facility, activated by a rising voltage on either VCNTL or VREFEN pins. In addition, to help reduce power consumption, a falling voltage applied to VIN, VCNTL or VREFEN pins causes the device to shutdown.

Current limit protection is provided on both source and sink sides, with device output voltage dropping towards 0V once current exceeds 1.75A. Over temperature protection is also included, with the AP2303 output turning off once junction temperature exceeds +160°C.

Click here for more information on or buy from Anglia Live.

 



 
Date Published :
13/05/2015
View All Semiconductors
Powered by Netalogue