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参数资料
| 型号： | MAX1623EAP |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 3A, Low-Voltage, Step-Down Regulator with Synchronous Rectification and Internal Switches |
| 中文描述： | 5.5 A SWITCHING REGULATOR, 350 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封装： | SSOP-20 |
| 文件页数： | 11/12页 |
| 文件大小： | 164K |
| 代理商： | MAX1623EAP |
Loop Stability
Stable operation requires the right output filter capaci-
tor. When choosing the output capacitor, ensure the fol-
lowing conditions are met:
and
10m
≤
R
ESR,
C
2
≤
50m
Circuit Layout and Grounding
Good layout is necessary to achieve the intended out-
put power level, high efficiency, and low noise. Good
layout includes the use of a ground plane, appropriate
component placement, and correct routing of traces
using appropriate trace widths. For heatsinking purpos-
es, copper area connected at the IC should be evenly
distributed among the high-current pins.
1) Minimize high-current ground loops. Connect the
input capacitor’s ground, output capacitor’s
ground, and IC PGND together.
2) A ground plane is essential for optimum perfor-
mance. In most applications, the circuit will be
located on a multilayer board, and full use of the
four or more copper layers is recommended. Use
the top and bottom layers for interconnections and
the inner layers for an uninterrupted ground plane.
3) Place the LX node components as close together
as possible. This reduces resistive and switching
losses and confines noise due to ground induc-
tance.
4) Connect the input filter capacitor less than 10mm
away from IN. The connecting copper trace carries
large currents and must be at least 2mm wide,
preferably 5mm.
5) Connect GND directly to PGND at only one point
near the IC.
C
80 t
V
V
2
OFF
REF
OUT
≥
M
______________________________________________________________________________________
11
3A, Low-Voltage, Step-Down Regulator with
Synchronous Rectification and Internal Switches
___________________Chip Information
TRANSISTOR COUNT: 1220
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1623EA-P | 制造商:Maxim Integrated Products 功能描述: |
| MAX1623EAP+ | 功能描述:直流/直流开关调节器 3A Step-Down w/Synch Rectification RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX1623EAP+T | 功能描述:直流/直流开关调节器 3A Step-Down w/Synch Rectification RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX1623EAP-T | 功能描述:直流/直流开关调节器 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX1623EVKIT | 功能描述:直流/直流开关调节器 Evaluation Kit for the MAX1623 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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