Motore di ricerca datesheet componenti elettronici |
|
MC34716EP Scheda tecnica(PDF) 1 Page - Freescale Semiconductor, Inc |
|
MC34716EP Scheda tecnica(HTML) 1 Page - Freescale Semiconductor, Inc |
1 / 25 page Document Number: MC34716 Rev. 3.0, 5/2007 Freescale Semiconductor Advance Information * This document contains certain information on a new product. Specifications and information herein are subject to change without notice. © Freescale Semiconductor, Inc., 2007. All rights reserved. 1.0 MHz Dual Switch-Mode DDR Power Supply The 34716 is a highly integrated, space-efficient, low cost, dual synchronous buck switching regulator with integrated N-channel power MOSFETs. It is a high performance point-of-load (PoL) power supply with its second output having the ability to track an external reference voltage. it provides a full power supply solution for Double- Data-Rate (DDR) Memories. Channel one provides a source only 5.0 A drive capability, while channel two can sink and source up to 3.0 A. Both channels are highly efficient with tight output regulation. With its high current drive capability, channel one can be used to supply the VDDQ to the memory chipset. The second channel’s ability to track a reference voltage makes it ideal to provide the termination voltage (VTT) for modern data buses. The 34716 also provides a buffered output reference voltage (VREFOUT) to the memory chipset The 34716 offers the designer the flexibility of many control, supervisory, and protection functions to allow for easy implementation of complex designs. It is housed in a Pb-Free, thermally enhanced, and space efficient 26-Pin Exposed Pad QFN. Features •50 mΩ Integrated N-Channel Power MOSFETs • Input Voltage Operating Range from 3.0 V to 6.0 V • ±1 % Accurate Output Voltages, Ranging from 0.7 V to 3.6 V • The second output Tracks 1/2 an External Reference Voltage • ±1 % Accurate Buffered Reference Output Voltage • Programmable Switching Frequency Range from 200 kHz to 1.0 MHz • Programmable Soft Start Timing for Channel One • Over Current Limit and Short Circuit Protection on Both Channels • Thermal Shutdown • Output Overvoltage and Undervoltage Detection • Active Low Power Good Output Signal • Active Low Standby and Shutdown Inputs • Pb-Free Packaging Designated by Suffix Code EP. Figure 1. 34716 Simplified Application Diagram DUAL SWITCH-MODE DDR POWER SUPPLY EP SUFFIX 98ASA10728D 26-PIN QFN 34716 ORDERING INFORMATION Device Temperature Range (TA) Package MC34716EP/R2 -40 to 85°C 26 QFN VIN PVIN1 3.0V to 6.0V BOOT1 SW1 COMP1 VOUT1 VREFOUT GND VREFIN VDDI FREQ PG STBY SD 34716 MCU DDR Memory Controller DDR Memory Chipset VIN Memory Bus Termination VTT VDDQ VDDQ VREF PGND1 PVIN2 BOOT2 SW2 INV2 COMP2 VOUT2 PGND2 VDDQ ILIM1 INV1 Resistors VIN |
Codice articolo simile - MC34716EP |
|
Descrizione simile - MC34716EP |
|
|
Link URL |
Privacy Policy |
ALLDATASHEETIT.COM |
Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |