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参数资料
| 型号： | MAX15005BAUE/V+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 23/27页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR PWM CM 16-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 96 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 1MHz |
| 占空比： | 81.5% |
| 电源电压： | 4.5 V ~ 40 V |
| 降压： | 无 |
| 升压： | 是 |
| 回扫： | 是 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 是 |
| Cuk： | 无 |
| 隔离： | 是 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 包装： | 管件 |
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MAX15004A/B/MAX15005A/B
4.5V to 40V Input Automotive
Flyback/Boost/SEPIC Power-Supply Controllers
Layout Recommendations
Typically, there are two sources of noise emission in a
switching power supply: high di/dt loops and high dv/dt
surfaces. For example, traces that carry the drain cur-
rent often form high di/dt loops. Similarly, the heatsink
of the MOSFET connected to the device drain presents
a dv/dt source; therefore, minimize the surface area of
the heatsink as much as possible. Keep all PCB traces
carrying switching currents as short as possible to mini-
mize current loops. Use a ground plane for best results.
Careful PCB layout is critical to achieve low switching
losses and clean, stable operation. Refer to the
MAX15005 EV kit data sheet for a specific layout exam-
ple. Use a multilayer board whenever possible for bet-
ter noise immunity. Follow these guidelines for good
PCB layout:
1) Use a large copper plane under the package and
solder it to the exposed pad. To effectively use this
copper area as a heat exchanger between the PCB
and ambient, expose this copper area on the top
and bottom side of the PCB.
2) Do not connect the connection from SGND (pin 7)
to the EP copper plane underneath the IC. Use mid-
layer-1 as an SGND plane when using a multilayer
board.
Maxim Integrated
3) Isolate the power components and high-current
path from the sensitive analog circuitry.
4) Keep the high-current paths short, especially at the
ground terminals. This practice is essential for sta-
ble, jitter-free operation.
5) Connect SGND and PGND together close to the
device at the return terminal of V CC bypass capaci-
tor. Do not connect them together anywhere else.
6) Keep the power traces and load connections short.
This practice is essential for high efficiency. Use
thick copper PCBs (2oz vs. 1oz) to enhance full-
load efficiency.
7) Ensure that the feedback connection to FB is short
and direct.
8) Route high-speed switching nodes away from the
sensitive analog areas. Use an internal PCB layer
for SGND as an EMI shield to keep radiated noise
away from the device, feedback dividers, and ana-
log bypass capacitors.
9) Connect SYNC pin to SGND when not used.
23
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX15006AASA/V+ | 制造商:Maxim Integrated Products 功能描述:40V, ULTRA-LOW QUIESCENT-CURRENT LINEAR REGULATORS IN 6-PIN - Rail/Tube |
| MAX15006AASA/V+T | 制造商:Maxim Integrated Products 功能描述:40V, ULTRA-LOW QUIESCENT-CURRENT LINEAR REGULATORS IN 6-PIN - Tape and Reel |
| MAX15006AASA+ | 功能描述:线性稳压器 - 标准 40V Ultra-Low Quiescent-Current RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
| MAX15006AASA+T | 功能描述:线性稳压器 - 标准 40V Ultra-Low Quiescent-Current RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
| MAX15006AATT/V+T | 功能描述:线性稳压器 - 标准 40V Ultra-Low Quiescent-Current RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
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