參數(shù)資料
型號(hào)： MAX1544ETL
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： Dual-Phase, Quick-PWM Controller for AMD Hammer CPU Core Power Supplies
中文描述： SWITCHING CONTROLLER, 550 kHz SWITCHING FREQ-MAX, QCC40
封裝： 6 X 6 MM, 0.80 MM HEIGHT, TQFN-40
文件頁數(shù)： 1/42頁
文件大?。?/td> 904K
代理商： MAX1544ETL
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).
The MAX1544 includes output undervoltage protection,
thermal protection, and voltage regulator power-OK
(VROK) output. When any of these protection features
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.
Applications
AMD Hammer Desktop or Notebook PCs
Multiphase CPU Core Supply
Voltage-Positioned Step-Down Converters
Servers/Desktop Computers
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
M
Dual-Phase, Quick-PWM Controller for
AMD Hammer CPU Core Power Supplies
________________________________________________________________
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
V
DD
DLM
DHM
LXM
BSTM
VROK
D0
D1
D2
D3
SUS
S0
S1
SHDN
OFS
REF
ILIM
V
CC
TON
TIME
1
2
3
4
5
6
7
8
9
10
1
1
1
1
1
1
1
1
1
2
4
3
3
3
3
3
3
3
3
3
30
29
28
27
26
25
24
23
22
21
F
O
O
O
D
C
G
C
G
C
C
C
V
B
L
D
D
P
C
THIN QFN
MAX1544
TOP VIEW
S
Pin Configuration
Ordering Information
19-2745; Rev 1; 9/03
EVALUATION KIT
AVAILABLE
PART
TEMP RANGE
-40
°
C to +100
°
C
PIN-PACKAGE
40 Thin QFN 6mm
6mm
MAX1544ETL
Quick-PWM is a trademark of Maxim Integrated Products, Inc.
Hammer is a trademark of AMD.
相關(guān)PDF資料
PDF描述
MAX1544 Dual-Phase, Quick-PWM Controller for AMD Hammer CPU Core Power Supplies
MAX1546ETL PLASTIC ENCAPSULATED DEVICES
MAX1549EVKIT MAX1549 Evaluation Kit
MAX1549 MAX1549 Evaluation Kit
MAX1549ETL Dual, Interleaved, Fixed-Frequency Step-Down Controller with a Dynamically Adjustable Output
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1544ETL+ 功能描述:電壓模式 PWM 控制器 Dual-Phase Quick-PWM Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX1544ETL+T 功能描述:電壓模式 PWM 控制器 Dual-Phase Quick-PWM Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝: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:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝: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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