参数资料
| 型号： | MC34712EPR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | IC CONVERTER DDR 24QFN |
| 标准包装： | 2,500 |
| 应用： | 转换器，DDR |
| 输入电压： | 3 V ~ 6 V |
| 输出数： | 1 |
| 输出电压： | 0.7 V ~ 1.35 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-VFQFN 裸露焊盘 |
| 供应商设备封装： | 24-QFN 裸露焊盘（4x4） |
| 包装： | 带卷 (TR) |
Freescale Semiconductor ?
Advance Information
3.0 A 1.0 MHz Fully Integrated
DDR Switch-Mode Power
Supply
The 34712 is a highly integrated, space efficient, low cost, single
synchronous buck switching regulator with integrated N-channel
power MOSFETs. It is a high performance point-of-load (PoL) power
supply with the ability to track an external reference voltage.
Its high efficient 3.0 A sink and source capability combined with its
voltage tracking/sequencing ability and tight output regulation, makes
it ideal to provide the termination voltage (V TT ) for modern data buses
such as Double-Data-Rate (DDR) memory buses. It also provides a
buffered output reference voltage (V REF ) to the memory chipset
The 34712 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 24 Pin Exposed Pad QFN.
Features
? 50 m ? integrated N-channel power MOSFETs
? Input voltage operating range from 3.0 to 6.0 V
? ? 1% Accurate output voltage, ranging from 0.7 to 1.35 V
? ? 1% Accurate buffered reference output voltage
? Programmable switching frequency range from 200 kHz to
Document number: MC34712
Rev. 6.0, 4/2012
34712
SWITCH-MODE POWER SUPPLY
EP SUFFIX
98ARL10577D
24-PIN QFN
ORDERING INFORMATION
1.0 MHz with a default of 1.0 MHz
? Over-current limit and short-circuit protection
? Thermal shutdown
? Output over-voltage and under-voltage detection
Device
MC34712EP/R2
Temperature
Range (T A )
-40 to 85 °C
Package
24 QFN
? Active low power good output signal
? Active low standby and shutdown inputs
V IN
(3.0 TO 6.0 V)
34712
V DDQ
PVIN
VREFIN
BOOT
SW
V TT
TERMINATING
RESISTORS
VIN
VOUT
VDDI
INV
V DDQ
MEMORY
BUS
FREQ
COMP
DDR MEMORY
CHIPSET
GND
VREFOUT
V REF
V DDQ
MCU
SD
PGND
V IN
DDR MEMORY
CONTROLER
STBY
PG
Figure 1. 34712 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 |
|---|---|
| MC34713 | 制造商:SPC Multicomp 功能描述:HEADER R/ANGLE 20WAY 制造商:SPC Multicomp 功能描述:HEADER, R/ANGLE, 20WAY |
| MC34713EP | 功能描述:开关变换器、稳压器与控制器 SINGLE SWITCH REG 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 |
| MC34713EPR2 | 功能描述:开关变换器、稳压器与控制器 SINGLE SWITCH REGULATOR 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 |
| MC34715 | 制造商:SPC Multicomp 功能描述:HEADER VERTICAL 2WAY 制造商:SPC Multicomp 功能描述:HEADER, VERTICAL, 2WAY 制造商:SPC Multicomp 功能描述:WIRE-BOARD CONN, RECEPTACLE, 2POS, 3MM; Series:2261(5561); Pitch Spacing:3mm; Contact Termination:Through Hole Vertical; No. of Contacts:2; No. of Rows:2; Connector Mounting:PCB; Gender:Receptacle; Contact Material:Copper Alloy ;RoHS Compliant: Yes |
| MC34716EP | 功能描述:开关变换器、稳压器与控制器 DUAL SWITCH REG 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 |
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