参数资料
| 型号： | MC34716EPR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 1/27页 |
| 文件大小： | 0K |
| 描述： | IC CONVERTER DDR 26QFN |
| 标准包装： | 2,500 |
| 应用： | 转换器，DDR |
| 输入电压： | 3 V ~ 6 V |
| 输出数： | 2 |
| 输出电压： | 0.7 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 26-VFQFN 裸露焊盘 |
| 供应商设备封装： | 26-QFN-EP（5x5） |
| 包装： | 带卷 (TR) |
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Freescale Semiconductor ?
Advance Information
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 V DDQ to the
memory chipset. The second channel’s ability to track a reference
voltage makes it ideal to provide the termination voltage (V TT ) for
modern data buses. The 34716 also provides a buffered output
reference voltage (V REFOUT ) 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 m ? integrated N-channel power MOSFETs
Document Number: MC34716
Rev 5.0, 4/2012
34716
DUAL SWITCH-MODE DDR POWER
SUPPLY
EP SUFFIX
98ASA10728D
26-PIN QFN
Range (T A )
? Input voltage operating range from 3.0 to 6.0 V
? ? 1% accurate output voltages, ranging from 0.7 to 3.6 V
? The second output tracks 1/2 an external reference voltage
? ? 1% accurate buffered reference output voltage
Device
ORDERING INFORMATION
Temperature
Package
? Programmable switching frequency range from 200 kHz to
MC34716EP/R2
-40 to 85 °C
26 QFN
1.0 MHz
? Programmable soft start timing for channel one
? Over-current limit and short-circuit protection on both channels
? Thermal shutdown
? Output over-voltage and under-voltage detection
? Active low power good output signal
? Active low standby and shutdown inputs.
34716
3.0 V to 6.0 V V I N
V DDQ
VIN
PVIN1
BOOT1
SW1
VOUT1
INV1
PVIN2
VREFIN
BOOT2
SW2
VOUT2
INV2
V DDQ
V TT
VDDQ
Termination
Resistors
COMP1
PGND1
VDDI
COMP2
VREFOUT
PGND2
V IN
DDR Memory
Chipset
V REF
Memory Bus
DDR Memory
Controller
FREQ
PG
ILIM1
GND
STBY
SD
MCU
Figure 1. 34716 Simplified Application Diagram
* This document contains certain information on a new product. ?
Specifications and information herein are subject to change without notice.
? Freescale Semiconductor, Inc., 2007-2012. All rights reserved.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MC34717 | 制造商:SPC Multicomp 功能描述:HEADER R/ANGLE 4WAY 制造商:SPC Multicomp 功能描述:HEADER, R/ANGLE, 4WAY 制造商:SPC Multicomp 功能描述:WIRE-BOARD CONN, RECEPTACLE, 4POS, 3MM; Series:2261(5561); Pitch Spacing:3mm; Contact Termination:Through Hole Right Angle; No. of Contacts:4; No. of Rows:2; Connector Mounting:PCB; Gender:Receptacle; Contact Material:Copper Alloy ;RoHS Compliant: Yes |
| MC34717EP | 功能描述:开关变换器、稳压器与控制器 5.0A 1.0MHZ DUAL SWITCH RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MC34717EPR2 | 功能描述:开关变换器、稳压器与控制器 5.0A 1.0MHZ DUAL SWITCH RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MC34719 | 制造商:SPC Multicomp 功能描述:HEADER VERTICAL 4WAY |
| MC3471P | 制造商:Motorola Inc 功能描述: |
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