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Power Management ICs
AC-DC Controllers & Regulators10 DC-DC Converters67 Battery Management ICs9 Charge Pumps14 Voltage References5 Supervisors & Reset ICs67 Linear Regulators (LDO)179
Circuit Protection
Trigger Diodes (DIAC)1 TVS / ESD Protection178
Discrete Semiconductors
MOSFETs61 Darlington Transistor Arrays4 Switching Diodes16 Fast / High-Efficiency Rectifiers52 Bipolar Transistors (BJT)79 General Purpose Rectifiers70 Zener Diodes283 Schottky Diodes100 Bridge Rectifiers48
Display Drivers
LCD Drivers16 LED Drivers36 LED Segment Display Drivers9
Interface & Communication
CAN Transceivers16 RS-485 / RS-422 Transceivers91 RS-232 Transceivers40 Buffers / Drivers / Transceivers9 Transistor-Output Optocouplers6 Analog Switches & Multiplexers10
Amplifiers & Comparators
FET-Input Op Amps1 Comparators9 Differential Amplifiers5 Precision Op Amps5 Special Function Amplifiers1 Audio Power Amplifiers14 Operational Amplifiers22
Memory & Logic
EEPROM12 NOR Flash12 Inverters10 Non-Volatile Memory (ROM)2 Counters & Dividers4 Logic Gates24 Latches2
MCU & Mixed-Signal
555 Timers3 Analog-to-Digital Converters (ADC)5 Stepper Motor Drivers2 Touch Sensing ICs8 Monostable Multivibrators1 Motor Driver Modules1 Other Modules18 Clock Generators / Synthesizers / PLL1 Real-Time Clocks (RTC)11 Digital-to-Analog Converters (DAC)1 Temperature Sensors4 Brushed DC Motor Drivers2 Intelligent Power Modules (IPM)1 Microcontrollers (MCU / MPU / SoC)19 Development Boards22
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NE555 LM317 78L05 MAX3232 SS8550 1N4148 HT75 series

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TDSEMIC (Sichuan Tuodian Semiconductor Co., Ltd.) was founded in 2011 and specialises in analog and mixed-signal ICs plus discrete semiconductors. We run a complete chain — chip design, wafer fabrication, packaging and test, and application engineering — with a focus on pin-to-pin second-source replacements for imported parts.

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Power Management ICs
Circuit Protection
Discrete Semiconductors
Display Drivers
Interface & Communication
Amplifiers & Comparators
Memory & Logic
MCU & Mixed-Signal

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Linear Regulators (LDO)
TVS / ESD Protection
Zener Diodes
RS-485 / RS-422 Transceivers
Operational Amplifiers
Schottky Diodes
Bipolar Transistors (BJT)

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niko@tdsemic.com
Suining, Sichuan, China

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