降压型直流电源变换器芯片(大功率型)XL4003
| 价 格： | 面议 | |
| 型号/规格： | XL4003 | |
| 品牌/商标： | XLSEMI |
Features
Wide 5V to 32V Input Voltage Range
Output Adjustable from 0.8V to 30V
Maximum Duty Cycle 100%
Minimum Drop Out 0.6V
Fixed 300KHz Switching Frequency
4A Constant Output Current Capability
Internal Optimize Power MOSFET
High efficiency
Excellent line and load regulation
TTL shutdown capability
EN pin with hysteresis function
Built in thermal shutdown function
Built in current limit function
Built in output short protection function
Available in TO-252 package
Applications
LCD Monitor and LCD TV
Digital Photo Frame
Set-up Box
ADSL Modem
Telecom / Networking Equipment
General Description
The XL4003 is a 300KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 4A load with high
efficiency, low ripple and excellent line and
load regulation. Requiring a minimum
number of external components, the regulator
is simple to use and include internal
frequency compensation and a
fixed-frequency oscillator.
The PWM control circuit is able to adjust the
duty ratio linearly from 0 to 100%. An enable
function, an over current protection function
is built inside. When short protection function
happens, the operation frequency will be
reduced from 300KHz to 60KHz. An internal
compensation block is built in to minimize
external component count.
Figure1. Package Type of XL4003
| 降压型直流电源变换器芯片(大功率型) | |||||
| 产品型号 | 输入电压 | 输出电流 | 开关频率 | 电压版本 | 封装类型 |
| XL4003 | 5V ~ 32V | 4A | 300KHz | Adj (0.8V) | TO252-5L |
| XL4005 | 5V ~ 32V | 5A | 300KHz | Adj (0.8V) | TO263-5L |
| XL4012 | 5V ~ 32V | 12A | 300KHz | Adj (0.8V) | TO220-5L |
- 所属城市：广东 深圳
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- 联系人： 张小姐
- 电话：0755-82714131
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