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參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 22/24頁 |
| 文件大小： | 223K |
| 代理商： | MAX1624 |
M
High-S peed S tep-Down Controllers with
S ync hronous Rec tific ation for CPU Power
22
______________________________________________________________________________________
Minimize high-current path trace lengths.
Use
very short and wide traces. From C1 to N1: 0.4 in.
(10mm) max length; D1 cathode to N2: 0.2 in.
(5mm) max length; LX node (N1 source, N2 drain,
D1 cathode, inductor L1): 0.6 in. (15mm) max
length.
2) Place the MAX1624/MAX1625 and supporting
components following these rules:
Minimize trace lengths to the current-sense
resistor.
The IC must be no farther than 0.4 in.
(10mm) from the current-sense resistor. Use a
Kelvin connection.
Minimize ground trace lengths between the
MAX1624/MAX1625 and supporting compo-
nents.
Connect components for the REF, CC1,
CC2, and FREQ pin directly to AGND. Connect
AGND and PGND at the IC.
Keep noisy nodes and components away from
sensitive analog nodes,
such as the current-
sense, voltage-feedback, REF, CC1, CC2, and
FREQ pins. Placing the IC and analog compo-
nents on the opposite side of the board from the
power-switching node is desirable. Noisy nodes
include the main switching node (LX), inductor,
and gate-drive outputs.
Place components for the FREQ, REF, CC1,
and CC2 pins as close to the IC as possible,
within 0.2 in. (5mm).
Keep the gate-drive traces (DH, DL, and BST)
shorter than 20mm, and route them away from
CSH, CSL, REF, FB, etc.
Filter the V
CC
supply input to the IC. Bypass the
IC directly from V
DD
to PGND using a 0.1μF
ceramic capacitor and 4.7μF electrolytic capacitor
placed within 0.2 in. (5mm) of the IC.
Place the voltage-feedback components close to
the FB pin of the MAX1625, within 0.2 in. (5mm).
Connect the voltage-feedback trace directly to the
CPU’s power input and route it to avoid noisy
traces.
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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