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MAX8643AETG+中文资料PDF规格书
厂商型号 |
MAX8643AETG+ |
参数属性 | MAX8643AETG+ 封装/外壳为24-WFQFN 裸露焊盘;包装为卷带(TR);类别为集成电路(IC) > 稳压器 - DC-DC 开关稳压器;产品描述:IC REG BUCK ADJUSTABLE 3A 24TQFN |
功能描述 | 3A, 2MHz Step-Down Regulator with Integrated Switches |
文件大小 |
303.04 Kbytes |
页面数量 |
16 页 |
生产厂商 | MaximIntegrated |
企业简称 |
Maxim【美信半导体】 |
中文名称 | 美信半导体官网 |
原厂标识 | |
数据手册 | |
更新时间 | 2024-5-31 22:30:00 |
MAX8643AETG+规格书详情
General Description
The MAX8643A high-efficiency switching regulator delivers up to 3A load current at output voltages from 0.6V to (0.9 x VIN). The IC operates from 2.35V to 3.6V, making it ideal for on-board point-of-load and postregulation applications. Total output error is less than ±1 over load, line, and temperature.
The MAX8643A features fixed-frequency PWM mode operation with a switching frequency range of 500kHz to 2MHz set by an external resistor. High-frequency operation allows for an all-ceramic capacitor design. The high operating frequency also allows for small-size external components.
The low-resistance on-chip nMOS switches ensure high efficiency at heavy loads while minimizing critical inductances, making the layout a much simpler task with respect to discrete solutions. Following a simple layout and footprint ensures first-pass success in new designs.
The MAX8643A comes with a high-bandwidth (> 14MHz) voltage-error amplifier. The voltage-mode control architecture and the voltage-error amplifier permit a type III compensation scheme to be utilized to achieve maximum loop bandwidth, up to 20 of the switching frequency. High loop bandwidth provides fast transient response, resulting in less required output capacitance and allowing for all-ceramic capacitor designs.
The MAX8643A provides two three-state logic inputs to select one of nine preset output voltages. The preset output voltages allow customers to achieve ±1 output-voltage accuracy without using expensive 0.1 resistors. In addition, the output voltage can be set to any customer value by either using two external resis tors at the feedback with 0.6V internal reference or applying an external reference voltage to the REFIN input. The MAX8643A offers programmable soft-start time using one capacitor to reduce input inrush current. The MAX8643A is available in a lead-free, 24-pin, 4mm x 4mm thin QFN package.
Features
♦ Internal 37mΩ RDSON MOSFETs
♦ Continuous 3A Output Current
♦ ±1 Output Accuracy Over Load, Line,
and Temperature
♦ Operates from 2.35V to 3.6V Supply
♦ Adjustable Output from 0.6V to (0.9 x VIN)
♦ Soft-Start Reduces Inrush Supply Current
♦ 500kHz to 2MHz Adjustable Switching Frequency
♦ Compatible with Ceramic, Polymer, and
Electrolytic Output Capacitors
♦ VID-Selectable Output Voltages
0.6, 0.7, 0.8, 1.0, 1.2, 1.5, 1.8, 2.0, and 2.5V
♦ Fully Protected Against Overcurrent
and Overtemperature
♦ Safe-Start into Prebiased Output
♦ Sink/Source Current in DDR Applications
♦ Lead-Free, 24-Pin, 4mm x 4mm Thin QFN Package
Applications
POLs
ASIC/CPU/DSP Core and I/O Voltages
DDR Power Supplies
Base-Station Power Supplies
Telecom and Networking Power Supplies
RAID Control Power Supplies
产品属性
- 产品编号:
MAX8643AETG+
- 制造商:
Analog Devices Inc./Maxim Integrated
- 类别:
集成电路(IC) > 稳压器 - DC-DC 开关稳压器
- 包装:
卷带(TR)
- 功能:
降压
- 输出配置:
正
- 拓扑:
降压
- 输出类型:
可调式
- 输出数:
1
- 电压 - 输入(最小值):
2.35V
- 电压 - 输入(最大值):
3.6V
- 电压 - 输出(最小值/固定):
0.6V
- 电压 - 输出(最大值):
3.24V
- 电流 - 输出:
3A
- 频率 - 开关:
500kHz ~ 2MHz
- 同步整流器:
是
- 工作温度:
-40°C ~ 85°C(TA)
- 安装类型:
表面贴装型
- 封装/外壳:
24-WFQFN 裸露焊盘
- 供应商器件封装:
24-TQFN(4x4)
- 描述:
IC REG BUCK ADJUSTABLE 3A 24TQFN
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
MAXIM |
2020+ |
TQFN24 |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
MAXIM/美信 |
21+ |
QFN24 |
10000 |
全新原装 公司现货 价格优 |
询价 | ||
MAXIM/美信 |
21+ |
QFN24 |
1709 |
询价 | |||
MAXIM |
1822+ |
QFN |
9852 |
只做原装正品假一赔十为客户做到零风险!! |
询价 | ||
MAXIM/美信 |
2023+ |
QFN |
1267 |
专注全新正品,优势现货供应 |
询价 | ||
MAXIM/美信 |
20+ |
TQFN |
2500 |
原装现货支持BOM配单服务 |
询价 | ||
MAXIM/美信 |
23+ |
QFN24 |
90000 |
只做原厂渠道价格优势可提供技术支持 |
询价 | ||
MAXIM |
QFN24 |
9850 |
一级代理 原装正品假一罚十价格优势长期供货 |
询价 | |||
MAXIM |
QFN24 管装 |
699839 |
集团化配单-有更多数量-免费送样-原包装正品现货-正规 |
询价 | |||
MAXIM/美信 |
24+ |
QFN24 |
880000 |
明嘉莱只做原装正品现货 |
询价 |