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| 型号： | MAX15021ATI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 20/24页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ DL 28TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 0.6 V ~ 5.5 V |
| 输入电压： | 2.5 V ~ 5.5 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 500kHz ~ 4MHz |
| 电流 - 输出： | 2A，4A |
| 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： | 28-WFQFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
MAX15021
Dual, 4A/2A, 4MHz, Step-Down DC-DC
Regulator with Tracking/Sequencing Capability
Applications Information
PCB Layout Guidelines
Careful PCB layout is critical to achieve clean and sta-
ble operation. Follow these guidelines for good PCB
layout:
1) Place decoupling capacitors as close as possible to
the IC pins.
2) Keep SGND and PGND isolated and connect them
at one single point close to the negative terminal of
the input filter capacitor.
3) Route high-speed switching nodes away from sensi-
tive analog areas (FB_, COMP_, and EN_).
4) Distribute the power components evenly across the
board for proper heat dissipation.
5) Ensure timing resistor and all feedback connections
are short and direct. Place feedback resistors as
close as possible to the IC.
20
6) Place the bank of the output capacitors close to the
load.
7) Connect the MAX15021 exposed pad to a large
copper plane to maximize its power dissipation
capability. Connect the exposed pad to SGND
plane. Do not connect the exposed pad to the
SGND pin directly underneath the IC.
8) Use 2oz. copper to keep trace inductance and
resistance to a minimum. Thin copper PCBs can
compromise efficiency since high currents are
involved in the application. Also thicker copper con-
ducts heat more effectively, thereby reducing ther-
mal impedance.
9) A reference PCB layout included in the MAX15021
Evaluation Kit is also provided to further aid layout.
Maxim Integrated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX15021ATI/V+ | 制造商:Maxim Integrated Products 功能描述:DUAL, 4A/2A, 4MHZ, STEP-DOWN DC-DCREGULATOR WITH TRACKING/SE - Rail/Tube |
| MAX15021ATI/V+T | 制造商:Maxim Integrated Products 功能描述:DUAL, 4A/2A, 4MHZ, STEP-DOWN DC-DCREGULATOR WITH TRACKING/SE - Tape and Reel |
| MAX15021ATI+ | 功能描述:直流/直流开关调节器 Dual 4A/2A 4MHz w/Tracking/Seq 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 |
| MAX15021ATI+T | 功能描述:直流/直流开关调节器 Dual 4A/2A 4MHz w/Tracking/Seq 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 |
| MAX15021EVKIT+ | 功能描述:电源管理IC开发工具 MAX15021 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 |
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