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| 型号： | MAX1544ETL+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/42页 |
| 文件大小： | 0K |
| 描述： | IC QUICK-PWM DUAL-PHASE 40-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 系列： | Quick-PWM™ |
| 应用： | 控制器，AMD Hammer |
| 输入电压： | 2 V ~ 28 V |
| 输出数： | 1 |
| 输出电压： | 0.68 V ~ 1.55 V |
| 工作温度： | -40°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 供应商设备封装： | 40-TQFN-EP（6x6） |
| 包装： | 管件 |
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19-2745; Rev 1; 9/03
ATION
EVALU
AVAIL
KIT
ABLE
Dual-Phase, Quick-PWM Controller for
AMD Hammer CPU Core Power Supplies
General Description
The MAX1544 is a dual-phase, Quick-PWM?, step-
down controller for AMD Hammer? CPU core supplies.
Dual-phase operation reduces input ripple current
requirements and output voltage ripple while easing
component selection and layout difficulties. The Quick-
PWM control scheme provides instantaneous response
to fast load-current steps. The MAX1544 includes active
voltage positioning with adjustable gain and offset,
reducing power dissipation and bulk output capacitance
requirements.
The MAX1544 is intended for two different notebook CPU
core applications: stepping down the battery directly or
stepping down the 5V system supply to create the core
voltage. The single-stage conversion method allows this
device to directly step down high-voltage batteries for the
highest possible efficiency. Alternatively, two-stage con-
version (stepping down the 5V system supply instead of
the battery) at a higher switching frequency provides the
minimum possible physical size.
The MAX1544 complies with AMD ’s desktop and
mobile CPU specifications. The switching regulator fea-
tures soft-start and power-up sequencing, and
soft-shutdown. The MAX1544 also features indepen-
dent four-level logic inputs for setting the suspend volt-
age (S0–S1).
Features
o Dual-Phase, Quick-PWM Controller
o ±0.75% V OUT Accuracy Over Line, Load, and
Temperature (1.3V)
o Active Voltage Positioning with Adjustable Gain
and Offset
o 5-Bit On-Board DAC: 0.675V to 1.55V Output
Adjust Range
o Selectable 100kHz/200kHz/300kHz/550kHz
Switching Frequency
o 4V to 28V Battery Input Voltage Range
o Adjustable Slew-Rate Control
o Drives Large Synchronous Rectifier MOSFETs
o Selectable Output Overvoltage Protection
o Undervoltage and Thermal-Fault Protection
o Power Sequencing and Timing
o Selectable Suspend Voltage
o Soft-Shutdown
o Selectable Single- or Dual-Phase Pulse Skipping
Ordering Information
The MAX1544 includes output undervoltage protection,
thermal protection, and voltage regulator power-OK
(VROK) output. When any of these protection features
PART
MAX1544ETL
TEMP RANGE
-40 ° C to +100 ° C
PIN-PACKAGE
40 Thin QFN 6mm ? 6mm
detect a fault, the controller shuts down. Additionally, the
MAX1544 includes selectable overvoltage protection.
The MAX1544 is available in a low-profile, 40-pin 6mm
x 6mm thin QFN package. For other CPU platforms,
refer to the pin-to-pin compatible MAX1519/MAX1545
and MAX1532/MAX1546/MAX1547 data sheets.
TOP VIEW
Pin Configuration
Applications
TIME
TON
1
2
30
29
V DD
DLM
AMD Hammer Desktop or Notebook PCs
Multiphase CPU Core Supply
Voltage-Positioned Step-Down Converters
Servers/Desktop Computers
SUS
S0
S1
SHDN
OFS
REF
ILIM
V CC
3
4
5
6
7
8
9
10
MAX1544
28
27
26
25
24
23
22
21
DHM
LXM
BSTM
VROK
D0
D1
D2
D3
Quick-PWM is a trademark of Maxim Integrated Products, Inc.
Hammer is a trademark of AMD.
THIN QFN
________________________________________________________________ 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
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1544ETL+ | 功能描述:电压模式 PWM 控制器 Dual-Phase Quick-PWM Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX1544ETL+T | 功能描述:电压模式 PWM 控制器 Dual-Phase Quick-PWM Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX1544ETL+TG075 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1544ETL-T | 功能描述:电压模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| MAX1544EVKIT | 制造商:Maxim Integrated Products 功能描述:DUAL-PHASE, QUICK-PWM CONTROLLER FOR AMD HAMM - Bulk |
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