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| 型号： | LM2575D2T-3.3 |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK 3.3V 1A D2PAK |
| 产品变化通告： | Product Discontinuation 27/Jun/2007 |
| 标准包装： | 50 |
| 类型： | 降压（降压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 3.3V |
| 输入电压： | 4.75 V ~ 40 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 52kHz |
| 电流 - 输出： | 1A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-263-6，D²Pak（5 引线+接片），TO-263BA |
| 包装： | 管件 |
| 供应商设备封装： | D2PAK |
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LM2575, NCV2575
1.0 A, Adjustable Output
Voltage, Step-Down
Switching Regulator
1
The LM2575 series of regulators are monolithic integrated circuits
ideally suited for easy and convenient design of a step ? down
switching regulator (buck converter). All circuits of this series are
capable of driving a 1.0 A load with excellent line and load regulation.
These devices are available in fixed output voltages of 3.3 V, 5.0 V,
12 V, 15 V, and an adjustable output version.
These regulators were designed to minimize the number of external
components to simplify the power supply design. Standard series of
inductors optimized for use with the LM2575 are offered by several
different inductor manufacturers.
Since the LM2575 converter is a switch ? mode power supply, its
efficiency is significantly higher in comparison with popular
three ? terminal linear regulators, especially with higher input voltages.
In many cases, the power dissipated by the LM2575 regulator is so
low, that no heatsink is required or its size could be reduced
dramatically.
The LM2575 features include a guaranteed ± 4% tolerance on output
voltage within specified input voltages and output load conditions, and
± 10% on the oscillator frequency ( ± 2% over 0 ° C to 125 ° C). External
shutdown is included, featuring 80 m A typical standby current. The
output switch includes cycle ? by ? cycle current limiting, as well as
thermal shutdown for full protection under fault conditions.
Features
? 3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output Versions
? Adjustable Version Output Voltage Range of 1.23 V to 37 V ± 4%
Maximum Over Line and Load Conditions
? Guaranteed 1.0 A Output Current
? Wide Input Voltage Range: 4.75 V to 40 V
? Requires Only 4 External Components
? 52 kHz Fixed Frequency Internal Oscillator
? TTL Shutdown Capability, Low Power Standby Mode
? High Efficiency
? Uses Readily Available Standard Inductors
? Thermal Shutdown and Current Limit Protection
? Moisture Sensitivity Level (MSL) Equals 1
? Pb ? Free Packages are Available*
Applications
? Simple and High ? Efficiency Step ? Down (Buck) Regulators
? Efficient Pre ? Regulator for Linear Regulators
? On ? Card Switching Regulators
? Positive to Negative Converters (Buck ? Boost)
? Negative Step ? Up Converters
? Power Supply for Battery Chargers
*For additional information on our Pb ? Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
http://onsemi.com
TO ? 220
TV SUFFIX
CASE 314B
5
Heatsink surface connected to Pin 3
TO ? 220
T SUFFIX
CASE 314D
1
5
Pin 1. V in
2. Output
3. Ground
4. Feedback
5. ON/OFF
D 2 PAK
D2T SUFFIX
1 CASE 936A
5
Heatsink surface (shown as terminal 6 in
case outline drawing) is connected to Pin 3
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 25 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 26 of this data sheet.
? Semiconductor Components Industries, LLC, 2009
June, 2009 ? Rev. 11
1
Publication Order Number:
LM2575/D
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2575D2T-5 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator |
| LM2575D2T-5G | 功能描述:直流/直流开关调节器 5V 1A Buck PWM 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 |
| LM2575D2T-5G | 制造商:ON Semiconductor 功能描述:Power Supply IC |
| LM2575D2T-5R4 | 功能描述:直流/直流开关调节器 5V 1A Buck PWM 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 |
| LM2575D2T-5R4G | 功能描述:直流/直流开关调节器 5V 1A Buck PWM 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 |
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