MAX15046BEVKIT+ (Maxim) PDF资料下载 Datasheet(20/24 页)

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参数资料

型号：	MAX15046BEVKIT+
厂商：	Maxim Integrated
文件页数：	20/24页
文件大小：	0K
描述：	BOARD EVAL FOR MAX15046B
产品培训模块：	Lead (SnPb) Finish for COTS Obsolescence Mitigation Program
标准包装：	1
主要目的：	DC/DC，步降
输出及类型：	1，非隔离
输出电压：	3.3V
电流 - 输出：	10A
输入电压：	5 V ~ 40 V
稳压器拓扑结构：	降压
频率 - 开关：	350kHz
板类型：	完全填充
已供物品：	板
已用 IC / 零件：	MAX15046B

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MAX15046

40V, High-Performance, Synchronous

Buck Controller

PCB Layout Guidelines

Careful PCB layout is critical to achieve clean and stable

operation. The switching power stage requires particular

attention. Follow these guidelines for good PCB layout:

1) Place decoupling capacitors as close as possible to

the IC. Connect the power ground plane (connected

to PGND) and signal ground plane (connected to

GND) at one point near the device.

2) Connect input and output capacitors to the power

ground plane; connect all other capacitors to the sig-

nal ground plane.

3) Keep the high-current paths as short and wide as

possible. Keep the path of switching current (C2 to

IN and C2 to PGND) short. Avoid vias in the switching

paths.

4) Connect CSP to the drain of the low-side FET using a

Kelvin connection for accurate current-limit sensing.

5) Ensure all feedback connections are short and direct.

Place the feedback resistors as close as possible to the

IC.

6) Route high-speed switching nodes (BST, LX, DH, and

DL) away from sensitive analog areas (RT, FB, COMP,

and LIM).

20

24V Supply, 3.3V Output Operation

Typical Application Circuit 1 in the Typical Application

Circuits section shows an application circuit that oper-

ates out of 24V and outputs up to 10A at 3.3V. R5 sets

the switching frequency to 350kHz.

Single 4.5V to 5.5V Supply Operation

Typical Application Circuit 2 in the Typical Application

Circuits section shows an application circuit for a single

+4.5V to +5.5V power-supply operation.

Auxiliary 5V Supply Operation

Typical Application Circuit 3 in the Typical Application

Circuits section shows an application circuit for a +24V

supply to drive the external MOSFETs and an auxiliary

+5V supply to power the device

Maxim Integrated

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相关代理商/技术参数	参数描述
MAX15046BEVKIT+	功能描述:电源管理IC开发工具 MAX15046B Eval Kit 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
MAX15046CAEE+	功能描述:DC/DC 开关控制器 40V Synch Buck Controller 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
MAX15046CAEE+T	功能描述:DC/DC 开关控制器 40V Synch Buck Controller 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
MAX15046EEE+	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
MAX15046EEE+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

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