- 您现在的位置：买卖IC网 > PDF目录17226 > MAX1917EVKIT (Maxim Integrated Products)EVAL KIT FOR MAX1917 PDF资料下载
参数资料
| 型号： | MAX1917EVKIT |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/18页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT FOR MAX1917 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 电流 - 输出： | 7A |
| 输入电压： | 2.5 ~ 14V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 550kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX1917 |
19-2335; Rev 1; 6/02
Tracking, Sinking and Sourcing, Synchronous Buck
Controller for DDR Memory and Termination Supplies
General Description
The MAX1917 provides a complete power-manage-
ment solution for DDR memory. It contains a synchro-
nous buck controller and an amplifier to generate
1/2V DDR voltage for VTT and VTTR. The VTT and VTTR
voltages are maintained within 1% of 1/2V DDR . The
controller operates in synchronous rectification mode to
ensure balanced current sourcing and sinking capabili-
ty of up to 25A. With a shutdown current of less than
5μA, the MAX1917 is the best choice for low-power
notebook applications, as well as servers and desktop
computers. An all N-FET design optimizes efficiency.
The MAX1917 can also be used for generating V DDR
and as a general-purpose step-down controller with
variable switching frequency as high as 1MHz with few
additional components.
The MAX1917 uses Maxim’s proprietary Quick-PWM?
architecture for fast transient response up to 96% effi-
ciency, and the smallest external components. Output
current monitoring is achieved without sense resistors
by monitoring the bottom FET’s drain-to-source voltage.
The current-limit threshold is programmable through an
external resistor. The MAX1917 comes in a space-sav-
ing 16-pin QSOP package.
Applications
Features
o 25A Sourcing and Sinking Current
o Automatically Sets VTT to 1/2V DDR
o VTT and VTTR Within 1% of 1/2V DDR
o Smallest Output Capacitors
o 4.5V to 14V (or 28V with Resistor-Divider) Input
Voltage Range
o 1.5V to 3.6V Input DDR Range
o 200kHz/300kHz/400kHz/550kHz Preset Switching
Frequencies
o Variable Switching Frequency of Up to 1MHz
o Overcurrent Protection Without Current-Sense
Resistor
o Internal Soft-Start
o VTTR Reference Sources and Sinks Up to 25mA
o Quick-PWM Control for Fastest Loop Response
o Up to 96% Efficiency
o 16-Pin QSOP Package
DDR Memory Power
Supply
Notebook Computers
Desktop Computers
Ordering Information
Processor or DSP Core
Supply
Storage
Networking Systems
PART
MAX1917EEE
TEMP RANGE
-40 ° C to +85 ° C
PIN-PACKAGE
16 QSOP
AGTL Bus Termination
Supply
Quick-PWM is a trademark of Maxim Integrated Products, Inc.
V IN (2.5V TO 15V)
Typical Operating Circuit
TOP VIEW
Pin Configuration
POK
VDDR
EN/HSD
POK
DH
VL
V OUT
EN/HSD 1
16 LX
DDR
MAX1917
BST
(4.5V TO 14V)
DDR 2
POK 3
VTT 4
MAX1917EEE
15 DH
14 BST
13 PGND
V+
REF
LX
DL
ILIM 5
FSEL 6
12 DL
11 VL
VL
ILIM
FSEL
PGND
VTT
REF 7
GND 8
10 V+
9
VTTR
GND
VTTR
VTTR
QSOP
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
相关PDF资料 |
PDF描述 |
|---|---|
| R1S-1515/P | CONV DC/DC 1W 15VIN 15VOUT |
| RSO-4805DZ/H2 | CONV DC/DC 1W 18-72VIN +/-05VOUT |
| 594D337X06R3C8T | CAP TANT 330UF 6.3V 20% 2812 |
| GBA15DCBD | CONN EDGECARD 30POS R/A .125 SLD |
| GBM18DTAS-S189 | CONN EDGECARD 36POS R/A .156 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX19191ETI/V+ | 制造商:Maxim Integrated Products 功能描述:ANALOG TO DIGITAL CONVERTER - Rail/Tube |
| MAX19191ETI/V+T | 制造商:Maxim Integrated Products 功能描述:ULTRA-LOW-POWER, 10MSPS, 8-BIT ADC - Tape and Reel |
| MAX19191ETI+ | 制造商:Maxim Integrated Products 功能描述:ANALOG TO DIGITAL CONVERTER - Rail/Tube |
| MAX19191ETI+T | 制造商:Maxim Integrated Products 功能描述:ULTRA-LOW-POWER, 10MSPS, 8-BIT ADC - Tape and Reel |
| MAX19192ETI/V+ | 制造商:Maxim Integrated Products 功能描述:ANALOG TO DIGITAL CONVERTER - Rail/Tube |
发布紧急采购，3分钟左右您将得到回复。