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参数资料
| 型号： | MAX1624-MAX1625 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | High-Speed Step-Down Controllers with Synchronous Rectification for CPU Power |
| 中文描述： | 高速步下同步整流控制器的CPU电源 |
| 文件页数： | 12/24页 |
| 文件大小： | 223K |
| 代理商： | MAX1624-MAX1625 |
M
High-S peed S tep-Down Controllers with
S ync hronous Rec tific ation for CPU Power
12
______________________________________________________________________________________
AVX
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Semiconductor
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NIEC
Sanyo
Siliconix
Sprague
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(605) 668-4131
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(512) 992-7900
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(805) 867-2555*
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[81] 3-3607-5144
SUPPLIER
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FACTORY FAX
*Distributor
See Table 4 for a complete listing.
D4
D2
D0
1
0
1
1
1
1
1
0
1
1
—
—
1
0
0
0
0
0
0
0
1
0
—
—
0
0
0
0
0
1
0
—
1
1
1
0
—
0
1
D3
0
1
1
—
0
0
0
0
0
1
1
1
1
D1
0
1
1
—
0
0
0
—
1
0
—
1
1
OUTPUT
VOLTAGE
(V)
3.5
3.4
2.1
Decreases
in 100mV
increments
No CPU (OFF)
1.9
1.8
Decreases
in 100mV
increments
1.2
1.1
1.1
1.1
No CPU (OFF)
COMPATIBILITY
Intel-compatible
codes
Non-Intel
compatible codes
Table 2. Component Suppliers
Table 3. MAX1624 Output Voltage
Adjustment Settings (Abbreviated
)
_____S tandard Applic ation Circ uits
The predesigned MAX1624/MAX1625 circuits shown in
Figures 1 and 2 meet a wide range of applications with
output currents up to 12A and higher. Use Table 1 to
select components appropriate for the desired output
current range, and adapt the evaluation kit PC board
layout as necessary. Table 2 lists suggested vendors.
These circuits represent a good set of trade-offs
between cost, size, and efficiency while staying within
the worst-case specification limits for stress-related
parameters, such as capacitor ripple current.
These MAX1624/MAX1625 circuits were designed for
the specified frequencies. Do not change the switching
frequency without first recalculating component val-
ues—particularly the inductance, output filter capaci-
tance, and RC1 resistance values. Recalculate the
voltage-feedback resistor and compensation-capacitor
values (CC1 and CC2) as necessary to reconfigure
them for different output voltages. Table 3 lists voltage
adjustment DAC codes for the MAX1624.
_______________Detailed Desc ription
The MAX1624/MAX1625 are BiCMOS switch-mode,
power-supply controllers designed for buck-topology
regulators. They are optimized for powering the latest
high-performance CPUs—demanding applications
where output voltage precision, good transient
response, and high efficiency are critical for proper
operation. With appropriate external components, the
MAX1624/MAX1625 deliver over 15A between 1.1V and
3.5V with ±1% accuracy. The MAX1625 offers 1% typi-
cal transient-load regulation from a +5V supply, while the
MAX1624 offers a selectable transient-load regulation of
0.5%, 1%, or 2%. Remote output sensing ensures volt-
age precision by eliminating errors caused by PC board
trace impedance. These controllers achieve 90% effi-
ciency by using synchronous rectification.
A typical application circuit consists of two N-channel
MOSFETs, a rectifier, and an LC output filter (Figure 1).
At each of the internal oscillator’s rising edges, the
high-side MOSFET switch (N1) is turned on and allows
current to ramp up through the inductor to the output
filter capacitor and load, storing energy in a magnetic
field. The current is monitored by reading the voltage
相关PDF资料 |
PDF描述 |
|---|---|
| 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 |
| MAX1626-MAX1627 | 5V/3.3V or Adjustable, 100% Duty-Cycle, High-Efficiency, Step-Down DC-DC Controllers |
| MAX1630 | Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1625ESE | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1625ESE+ | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1625ESE+T | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1625ESE-T | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1625EVKIT | 功能描述:电源管理IC开发工具 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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