SY8665TTC

The SY8665TTC is a high-performance, low-power USB Type-C Power Delivery (PD) controller designed for managing power delivery in USB-C applications. It supports USB PD 3.0 and integrates key features like voltage negotiation (5V–20V), current control, and overvoltage/overcurrent protection.
Key features:
- Wide input voltage range (3V–24V)
- Programmable power profiles for flexible charging
- Automatic detection of USB-C source/sink roles
- I²C interface for configuration and monitoring
Applications include laptop adapters, power banks, and USB-C docking stations. Its compact TQFN package makes it suitable for space-constrained designs.
The SY8665TTC simplifies USB-C PD implementation while ensuring efficiency, safety, and compliance with industry standards.

The SY8665TTC is a high-speed, low-power comparator. Equivalent alternatives include:
- TI LMV7219 (similar specs, low-power)
- ON Semiconductor NCS2200 (high-speed, low-voltage)
- Maxim MAX9025 (ultra-low power, fast response)
- Analog Devices LTC1540 (micropower, single-supply)
Check datasheets for exact pin compatibility and performance matching.

The SY8665TTC is a 16-pin synchronous buck controller IC designed for high-efficiency DC-DC voltage regulation. Key functions include:
- Input Voltage Range: 4.5V to 18V
- Output Voltage: Adjustable down to 0.6V
- Switching Frequency: Up to 1MHz
- Features: Soft-start, overcurrent protection (OCP), undervoltage lockout (UVLO), and thermal shutdown.
- Control Method: Voltage-mode PWM
Pin Functions:
- VIN (Pin 1): Power input
- BOOT (Pin 2): Bootstrap for high-side MOSFET
- PHASE (Pin 3): Connects to switching node
- GND (Pins 4, 9, 16): Ground
- COMP (Pin 5): Error amplifier compensation
- FB (Pin 6): Feedback for output voltage regulation
- EN (Pin 7): Enable control
- SS (Pin 8): Soft-start capacitor connection
- PGOOD (Pin 10): Power-good indicator
- RT (Pin 11): Frequency setting resistor
- SYNC (Pin 12): External clock synchronization
- VCC (Pin 13): Internal regulator output
- LGATE (Pin 14): Low-side MOSFET gate drive
- UGATE (Pin 15): High-side MOSFET gate drive
Compact and efficient, it’s ideal for point-of-load (POL) applications.

The SY8665TTC is manufactured by Sino Wealth Electronic Ltd., a Chinese semiconductor company specializing in power management ICs, motor drivers, and LED drivers. Founded in 2004 and headquartered in Hangzhou, Sino Wealth focuses on analog and mixed-signal ICs for consumer electronics, industrial applications, and automotive systems. The company is known for cost-effective solutions and serves both domestic and international markets. The SY8665TTC is a synchronous buck converter, commonly used in power supply applications.

The SY8665TTC is available in a TDFN-10 (3x3mm) package. This compact, lead-free, surface-mount package is designed for high-efficiency power applications, offering good thermal performance and a small footprint. It is suitable for space-constrained designs.