參數(shù)資料
型號(hào)： MAX1624
廠商： Maxim Integrated Products, Inc.
英文描述： High-Speed Step-Down Controllers with Synchronous Rectification for CPU Power
中文描述： 高速、同步整流、降壓型控制器，用于CPU電源
文件頁(yè)數(shù)： 1/24頁(yè)
文件大小： 223K
代理商： MAX1624
_______________General Desc ription
The MAX1624/MAX1625 are ultra-high-performance,
step-down DC-DC controllers for CPU power in high-end
computer systems. Designed for demanding applications
in which output voltage precision and good transient
response are critical for proper operation, they deliver
over 35A from 1.1V to 3.5V with ±1% total accuracy from
a +5V ±10% supply. Excellent dynamic response cor-
rects output transients caused by the latest dynamically
clocked CPUs. These controllers achieve over 90% effi-
ciency by using synchronous rectification. Flying-capaci-
tor bootstrap circuitry drives inexpensive, external
N-channel MOSFETs.
The switching frequency is resistor programmable from
100kHz to 1MHz. High switching frequencies allow the
use of a small surface-mount inductor and decrease out-
put filter capacitor requirements, reducing board area
and system cost.
The MAX1624 is available in a 24-pin SSOP and offers
additional features such as a digitally programmable out-
put in 100mV increments; adjustable transient response;
selectable 0.5%, 1%, or 2% AC load regulation; and gate
drive for a current-boost MOSFET. The MAX1625 is resis-
tor adjustable and comes in a 16-pin narrow SO pack-
age. Other features in both controllers include internal
digital soft-start, a power-good output, and a 3.5V ±1%
reference output. For a similar controller compatible with
the latest Intel V
RM
/V
ID
specification, see the MAX1638*
data sheet.
________________________Applic ations
Pentium Pro, Pentium II, PowerPC, Alpha,
and K6 Systems
Desktop Computers
LAN Servers
Industrial Computers
GTL Bus Termination
______________Ordering Information
____________________________Features
o
Better than ±1% Output Accuracy Over
Line and Load
o
90% Efficiency
o
Excellent Transient Response
o
Resistor-Programmable Fixed Switching
Frequency from 100kHz to 1MHz
o
Over 35A Output Current
o
Digitally Programmable Output from 1.1V to 3.5V
in 100mV Increments (MAX1624)
o
Resistor-Adjustable Output down to 1.1V
(MAX1625)
o
Remote Sensing
o
Adjustable AC Loop Gain (MAX1624)
o
GlitchCatcher Circuit for Fast Load-Transient
Response (MAX1624)
o
Power-Good (PWROK) Output
o
Current-Mode Feedback
o
Digital Soft-Start
o
Strong 2A Gate Drivers
o
Current-Limited Output
M
High-S peed S tep-Down Controllers with
S ync hronous Rec tific ation for CPU Power
________________________________________________________________ Maxim Integrated Products
1
19-1227; Rev 1; 6/97
PART
MAX1624
EAG
MAX1625
ESE
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
PIN-PACKAGE
24 SSOP
16 Narrow SO
__________Typic al Operating Circ uit
Pin Configurations appear at end of data sheet.
*Future product.
Pentium Pro and Pentium II are trademarks of Intel Corp.
PowerPC is a trademark of IBM Corp.
Alpha is a trademark of Digital Equipment Corp.
K6 is a trademark of Advanced Micro Devices.
GlitchCatcher is a trademark of Maxim Integrated Products.
EVALUATION KIT
AVAILABLE
V
CC
FREQ
CC2
CC1
REF
AGND
(SIMPLIFIED)
FB
DL
DH
PWROK
BST
CSL
CSH
LX
TOV
DD
TOAGND
PGND
OUTPUT
1.1V TO4.5V
INPUT
+5V
V
DD
N
N
MAX1625
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
相關(guān)PDF資料
PDF描述
MAX1625ESE High-Speed Step-Down Controllers with Synchronous Rectification for CPU Power
MAX1624-MAX1625 High-Speed Step-Down Controllers with Synchronous Rectification for CPU Power
MAX1624EAG High-Speed Step-Down Controllers with Synchronous Rectification for CPU Power
MAX1626ESA 5V/3.3V or Adjustable, 100% Duty-Cycle, High-Efficiency, Step-Down DC-DC Controllers
MAX1627ESA 5V/3.3V or Adjustable, 100% Duty-Cycle, High-Efficiency, Step-Down DC-DC Controllers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1624EAG 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1624EAG+ 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1624EAG+T 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1624EAG-T 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1624EVKIT 功能描述:DC/DC 開關(guān)控制器 Evaluation Kit for the MAX1624 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
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