- 您现在的位置：买卖IC网 > PDF目录1852 > MCP16323T-500E/NG (Microchip Technology)IC REG BUCK SYNC 5V 3A 16-VQFN PDF资料下载
参数资料
| 型号： | MCP16323T-500E/NG |
| 厂商： | Microchip Technology |
| 文件页数： | 21/32页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 5V 3A 16-VQFN |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 5V |
| 输入电压： | 6 V ~ 18 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 3A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VFQFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 16-QFN（3x3） |
| 其它名称： | MCP16323T-500E/NGDKR |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页当前第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页
MCP16323
5.0.9 PCB LAYOUT INFORMATION
Good printed circuit board layout techniques are
important to any switching circuitry, and switching
power supplies are no different. When wiring the
switching high-current paths, short and wide traces
should be used. Therefore, it is important that the input
and output capacitors be placed as close as possible to
the MCP16323 to minimize the loop area.
The feedback resistors and feedback signal should be
routed away from the switching node and the switching
current loop. When possible, ground planes and traces
should be used to help shield the feedback signal and
minimize noise and magnetic interference.
A good MCP16323 layout starts with C IN placement.
C IN supplies current to the input of the circuit when the
switch is turned on. In addition to supplying high-
frequency switch current, C IN also provides a stable
voltage source for the internal MCP16323 circuitry.
Unstable PWM operation can result if there are
excessive transients or ringing on the V IN pin of the
MCP16323 device. In Figure 5-1 , C IN is placed close to
the V IN pins. A ground plane on the bottom of the board
provides a low resistive and low inductive path for the
return current. The next priority in placement is the
freewheeling current loop formed by C OUT and L while
strategically placing the C OUT return close to C IN
return. Next, C BOOST should be placed between the
boost pin and the switch node pin. This leaves space
close to the MCP16323 V FB pin to place R TOP and
R BOT . R TOP and R BOT are routed away from the switch
node so noise is not coupled into the high-impedance
V FB input.
Top layer is made
with 2 oz copper
The 2 middle
layers are made
V OUT
C OUT
C OUT
L
with 1 oz copper
and connected to
V IN and GND
GND
R PG
C BOOST
10 Ω
MCP16323
Trace on
R BOT
R TOP
V IN
C IN
C IN
bottom layer
GND
Bottom layer is a 2 oz
copper ground plane
Board Dimensions
are 2.5" by 2.5"
FIGURE 5-1:
Recommended Layout.
? 2011 Microchip Technology Inc.
DS22284A-page 21
相关PDF资料 |
PDF描述 |
|---|---|
| MCP1640C-I/MC | IC REG BOOST SYNC ADJ 0.1A 8DFN |
| MCP1653ST-E/UN | IC REG CTRLR BST FLYBK CM 10MSOP |
| MCP1700-3002E/TO | IC REG LDO 3V .25A TO-92-3 |
| MCP1701AT-4602I/MB | IC REG LDO 4.6V SOT89-3 |
| MCP1702T-1502E/MB | IC REG LDO 1.5V 50MA SOT89-3 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP16323T-ADJE/NG | 功能描述:开关变换器、稳压器与控制器 3A Synchrouns Buck Switcher 18Vin RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MCP1632-BAE/MC | 制造商:Microchip Technology Inc 功能描述:STANDALONE LOW-SIDE PWM CONTROLLER WITH INTEGRATED MOSFET DR - Rail/Tube |
| MCP1632-BAE/MS | 制造商:Microchip Technology Inc 功能描述:STANDALONE LOW-SIDE PWM CONTROLLER WITH INTEGRATED MOSFET DR - Rail/Tube |
| MCP1640 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:0.65V Start-up Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass Option |
| MCP1640_11 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:0.65V Start-up Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass Option |
发布紧急采购，3分钟左右您将得到回复。