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参数资料
| 型号： | IR3522MTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 1/32页 |
| 文件大小： | 0K |
| 描述： | IC CTRL XPHASE3 DDR/VVT 32-MLPQ |
| 标准包装： | 3,000 |
| 系列： | XPhase3™ |
| 应用： | 处理器 |
| 电流 - 电源： | 7mA |
| 电源电压： | 4.75 V ~ 7.5 V |
| 工作温度： | 0°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-MLPQ（5x5） |
| 包装： | 带卷 (TR) |
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a single phase to power any number of DDR3 DIMMs. The xPHASE3
architecture delivers a power
IR3522
DATA SHEET
XPHASE3 TM DDR & VTT CONTROL IC
DESCRIPTION
The IR3522 Control IC combined with IR3506 xPHASE3 TM Phase ICs implements a full featured DDR3
power solution. The IR3522 provides control functions for both the VTT (single phase) and VDDR
(multiphase) power rails which can interfaces with any number of IR3506 ICs each driving and monitoring
TM
supply that is smaller, more flexible, and easier to design while providing higher efficiency than
conventional approaches.
FEATURES
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I 2 C interface programs 1.025V< VREF1<1.612V, the VDD output voltage reference
I 2 C also programs the VTT tracking ratio ± 25 %, and provides digital ON/OFF control
Four different I 2 C addresses are selectible using 2 ADDR pins
Four different VREF1 voltages are selectible using 2 VID pins if I 2 C communication is not available
VTT tracking defaults to ? the VDD Remote Sense Amp output voltage
Power Good output driven by an external bias input
VDD to VTT overvoltage protection
Soft-Stop turn-off to ensure VDDR and Vtt tracking
Fault activated Crowbar pin to drive external NMOS devices for external output voltage protection
Pin programmable slew rate of I 2 C programmed VREF1 voltage transitions
0.5% overall VDD system set point accuracy
Remote sense amplifiers provide differential sensing and requires less than 50uA bias current
Pin programmable per phase switching frequency of 250kHz to 1.5MHz
Complete protection including over-current, over-voltage, open remote sense, and open control
APPLICATION CIRCUIT
12V
VCCL
PGOOD
SCL
SDA
RPGBIAS
CVCCL
12V
VCCL
PHSIN
PHSOUT
CLKOUT
To Converters
To Phase IC
VCCL & GATE
DRIVE BIAS
Phase Clock Input to
Last Phase IC of VDD
2 wire Digital
Daisy Chain Bus
to Phase ICs
1
2
SD A
PGBIAS
LGND
ROSC
24
23
ROSC
Drives NMOS crowbar
ENABLE
ROCSET2
3
4
5
6
7
EN ABLE
IIN 2
AD DR1
AD DR2
OCSET2
IR3522
CONTROL
IC
CROWBAR
II N1
SS/ DEL1
VREF1
OCSET1
22
21
20
19
18
RVR EF
ROCSET1
CSS/DEL
CVREF
CROWBAR
devices at VTT and
VDDR rails
8
EAOUT2
EAOUT1
17
RCP2
CCP21
RFB22
CFB2
CFB1
RFB12
R CP1
CCP11
CCP22
R FB21
RFB11
CCP12
ISHARE1
EAOUT1
VREF1
EAOUT2
ISHARE2
5 Wire Analog
Phase IC
Control Bus
To Vtt
Remote
Sense
VTT SENSE +
VTT SENSE -
DDR SENSE +
DDR SENSE -
To VDD
Remote
Sense
Figure 1 – IR3522 Application Circuit
Page 1
V3.01
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IR3523 | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM DUAL OUTPUT CONTROL IC |
| IR3523MPBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM DUAL OUTPUT CONTROL IC |
| IR3523MTRPBF | 功能描述:开关变换器、稳压器与控制器 X-PHASE IR3523 AMD SVID CTRL IC 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 |
| IR3527 | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM DUAL PHASE IC |
| IR3527MPBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM DUAL PHASE IC |
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