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TC2575-3.3VAT

更新时间： 2024-09-09 08:27:23
品牌 Logo 应用领域
TELCOM 稳压器开关局域网
页数 文件大小 规格书
25页 166K
描述
1.0A Step-Down Switching Regulator

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中文翻译

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TC2575-3.3VAT 技术参数

生命周期：Transferred包装说明：TO-220, 5 PIN
Reach Compliance Code：unknown风险等级：5.75
Is Samacsys：N模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：VOLTAGE-MODE最大输入电压：40 V
最小输入电压：4.75 V标称输入电压：12 V
JESD-30 代码：R-PSFM-T5功能数量：1
端子数量：5最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流：3.2 A
封装主体材料：PLASTIC/EPOXY封装形状：RECTANGULAR
封装形式：FLANGE MOUNT认证状态：Not Qualified
表面贴装：NO切换器配置：BUCK
最大切换频率：63 kHz温度等级：AUTOMOTIVE
端子形式：THROUGH-HOLE端子位置：SINGLE
Base Number Matches：1

TC2575-3.3VAT 数据手册

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TC2575  
1.0A Step-Down Switching Regulator  
The TC2575 series of regulators are monolithic inte-  
FEATURES  
grated 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 1.0A load with  
excellent line and load regulation. These devices are avail-  
able in fixed output voltages of 3.3V, 5.0V, 12V, and  
an adjustable output version.  
These regulators were designed to minimize the num-  
ber of external components to simplify the power supply  
design. Standard series of inductors optimized for use with  
the TC2575 are offered by several different inductor manu-  
facturers.  
Since the TC2575 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  
is so low, that no heatsinking is required or its size can be  
reduced dramatically.  
The TC2575 features include a guaranteed ±4% toler-  
ance on output voltage within specified input voltages and  
outputloadconditions,and±10%ontheoscillatorfrequency  
(±2% over 0°C to +125°C). External shutdown is included,  
featuring 80µA (typical) standby current. The output switch  
includes cycle-by-cycle current limiting, as well as thermal  
shutdown for full protection under fault conditions.  
■ 3.3V, 5.0V, 12V, and Adjustable Output Versions  
■ Adjustable Version Output Voltage Range of  
1.23V to 37V ±4% Max. Over Line and Load Conditions  
■ Guaranteed 1.0 A Output Current  
■ Wide Input Voltage Range; 4.75V to 40V  
■ Requires Only 4 External Components  
■ 52kHz Fixed Frequency Internal Oscillator  
■ TTL Shutdown Capability, Low Power Standby Mode  
■ High Efficiency  
■ Uses Readily Available Standard Inductors  
■ Thermal Shutdown and Current Limit Protection  
APPLICATIONS  
■ Simple and High-Efficiency Step-Down  
(Buck) Regulator  
■ 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  
GENERAL DESCRIPTION  
PIN CONFIGURATIONS  
5-Pin TO-220  
ORDERING INFORMATION  
Part  
Number  
Temperature  
Range  
Package  
TC2575-3.3VAT  
TC2575-5.0VAT  
TC2575-12.0VAT* 5-Pin TO-220  
TC2575VAT** 5-Pin TO-220  
5-Pin TO-220  
5-Pin TO-220  
–40 to +125°C  
–40 to +125°C  
–40 to +125°C  
–40 to +125°C  
TC2575  
Note: * Contact factory for availability  
** ADJ = 1.23 To 37V.  
3 4 5  
2
1
TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices.  
1
TC2575-1 3/13/00  
1234567...25

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