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| 型号： | EL7562CUZ |
| 厂商： | Intersil |
| 文件页数： | 9/9页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 2A 16QSOP |
| 标准包装： | 97 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1 V ~ 3.8 V |
| 输入电压： | 3.5 V ~ 5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 2A |
| 同步整流器： | 是 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 16-QSOP |
| 产品目录页面： | 1242 (CN2011-ZH PDF) |
Thermal Shut-down
An internal temperature sensor continuously monitors die
temperature. In the event that die temperature exceeds the
thermal trip-point, the system is in fault state and will be shut
down. The upper and low trip-points are set to 135°C and
115°C respectively.
Start-up Delay
A capacitor can be added to the EN pin to delay the
converter start-up (Figure 2) by utilizing the pull-up current.
The delay time is approximately:
t d ( ms ) = 1200 × C ( μ F )
The demo board is a good example of layout based on these
principles. Please refer to the EL7562 Application Brief for
the layout.
1
2
1
1
3
6
1
1
V OU
V IN
C
7
8
EL7562
1
9
t d
TIME
V O
FIGURE 2. START-UP DELAY
Layout Considerations
The layout is very important for the converter to function
properly. Power Ground ( ) and Signal Ground ( - -- )
should be separated to ensure that the high pulse current in
the Power Ground never interferes with the sensitive signals
connected to Signal Ground. They should only be connected
at one point (normally at the negative side of either the input
or output capacitor).
The trace connected to pin 14 (FB) is the most sensitive
trace. It needs to be as short as possible and in a “quiet”
place, preferably between PGND or SGND traces.
In addition, the bypass capacitor connected to the V DD pin
needs to be as close to the pin as possible.
The heat of the chip is mainly dissipated through the PGND
pins. Maximizing the copper area around these pins is
preferable. In addition, a solid ground plane is always helpful
for the EMI performance.
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EL7562CUZ-T13 | 功能描述:直流/直流开关转换器 2A DC-DC CNVRTR RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| EL7562CUZ-T7 | 功能描述:直流/直流开关转换器 2A DC-DC CNVRTR RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| EL7563 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Monolithic 4 Amp DC:DC Step-Down Regulator |
| EL7563C | 制造商:ELANTEC 制造商全称:ELANTEC 功能描述:Monolithic 4 Amp DC:DC Step-down Regulator |
| EL7563CM | 制造商:Rochester Electronics LLC 功能描述: 制造商:Intersil Corporation 功能描述: |
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