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| 型号： | XRP6142EVB |
| 厂商： | Exar Corporation |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR XRP6142 |
| 特色产品： | XRP6142 Synchronous Step-Down Controllers |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 2.5V |
| 电流 - 输出： | 15A |
| 输入电压： | 3.3 ~ 5.5 V |
| 稳压器拓扑结构： | 降压 |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | XRP6142 |
| 相关产品： | 1016-1333-ND - IC CTRLR STEP-DWN SYNC 16QFN 1016-1332-ND - IC CTRLR STEP-DWN SYNC 16QFN 1016-1331-ND - IC CTRLR STEP-DWN SYNC 16QFN |
| 其它名称： | 1016-1334 |
X R P 6 1 4 2
S y n c h r o n o u s S t e p - D o w n C o n t r o l l e r w i t h D D R
M e m o r y T e r m i n a t i o n
March 2010
GENERAL DESCRIPTION
The XRP6142 is a synchronous step down
switching controller for over 15 Amps point-of-
loads converters and optimized to generate
and support DDR I, II and III memory
voltages requirements.
Optimized to operate from standard 3.3V and
5V rails, the XRP6142 supports conversions
down to 0.5V from an input voltage as low as
1V and can reach efficiencies of up to 96%.
Based on a constant on-time control scheme
and operating at a constant switching
frequency over the whole input voltage range,
it provides excellent load transient response
while requiring no external compensation
components. Three selectable on-time options
allow for further switching frequency, solution
footprint and efficiency optimization.
Dedicated support for DDR I, II and II
memories is also provided. The XRP6142
easily generates V DDQ (V DD ) or V TT voltages
while an on board buffer provides the buffered
V TT reference voltage.
Under-voltage Lock out, short-circuit and
over-current and over-temperature protection
insure safe operations under abnormal
operating conditions.
The XRP6142 is available in a compact RoHS
compliant “green”/halogen free 16-pin QFN
package.
Rev. 1.0.0
APPLICATIONS
? High-Power Point-of-Loads Converters
? Audio-Video Equipments
? FPGA and DSP Power Supplies
? DDR Memory Based Embedded Systems
FEATURES
? Over 15A Point-of-Load Capable
? Down to 0.5V Output Voltage Conversion
? Up to 96% Efficiency
? Wide 1.0V-5.5V Input Voltage Range
Conversions
? Single Input 3.3V and 5V rails Operations
? Constant On-Time Operations
? Constant Frequency Operations
? No External Compensation
? DDR I, II & III Termination Support
? V DDQ /V DD or V TT Voltages Generation
? Buffered V TT Ref. Voltage Generation
? Soft-Start and Enable Functions
? UVLO, Short Circuit and Over Current
Protection
? RoHS Compliant “Green”/Halogen Free
3mm x 3mm 16-Pin QFN Package
TYPICAL APPLICATION DIAGRAM
Operation as DDR Supply
V IN
C IN
VDDQ
3V-5.5V
V CC
V IN
GH
QT
L1
V OUT
ACNTL
VTT
EN
BST
V IN
VOUT
V REF
SW
XRP6142
ILIM
RLIM
CFF
R1
C OUT
R3
SP2996B
REF EN
REFIN
GL
QB
R2
R4
CS GND
GND
PGND
FB
AGND
Thermal
Pad
VDDQ/2
VTTREF
VREF
Figure. 1: XRP6142 as a Step-Down Converter or a DDR Supply
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 – Fax. +1 510 668-7001
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XRP6153EL-F | 功能描述:开关变换器、稳压器与控制器 Synchronization 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 |
| XRP6153EVB | 功能描述:数据转换 IC 开发工具 300kHz Sync Bck Cont w/Frequency Sync RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| XRP6272IDBTR-F | 功能描述:低压差稳压器 - LDO 2A LDO LOW NOISE 5V AND ADJ OUTPUT RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| XRP6272ITC5TR-F | 功能描述:低压差稳压器 - LDO 2A LDO LOW NOISE 5V AND ADJ OUTPUT RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| XRP6274EH-F | 制造商:Exar Corporation 功能描述:Single Supply LDOs With 140mV Dropout |
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