Detailed Explanation of TPS628601YCHR 1A Synchronous Step-down Converter | High-Efficiency DC-DC Voltage Regulator Chip
Product Overview
TPS628601YCHR is a high-performance 1A synchronous step-down converter launched by Texas Instruments, which is suitable for embedded systems with high requirements for space, efficiency and power consumption. This device features a wide input voltage range (1.8V to 5.5V), adjustable output voltage, low quiescent current and extremely fast transient response characteristics.
Overview of technical parameters
Parameter specification
Model TPS628601YCHR
The input voltage range is 1.8V to 5.5V
The output current is as high as 1A
The output voltage is adjustable from 0.6V to 3.3V
Topological structure synchronous voltage reduction (Buck
✅ Fast load Response: For analog front-end systems sensitive to power supply noise
✅ supports forced PWM or power-saving mode (PFM) : balancing efficiency and stability
✅ Integrated power MOSFET: Simplify peripheral circuits and reduce PCB area
✅ has soft start protection, overcurrent protection and thermal shutdown protection
Typical application fields
🔋 Battery-powered systems such as smartwatches, wireless headphones, health monitoring devices, etc
📱 Smartphones and mobile devices: used to power the AP, baseband or sensor module
📡 Communication module: Power supply circuit for Bluetooth, Wi-Fi and NB-IoT modules
📊 Industrial control systems: low-power sensor nodes
🧠 MCU/FPGA auxiliary power supply: provides a stable core voltage source
Packaging and pin description
The TPS628601YCHR adopts a 6-ball DSBGA (0.8mm x 0.9mm) micro package. Its advantage is that the area is extremely small and it is suitable for ultra-thin and portable devices. Common pins include:
VIN: Power input
VOUT: Output voltage
EN: Enable control
FB: Feedback voltage input
GND: Ground
SW: Switch node
Recommendations for equivalent and compatible models
The following are compatible models with similar functions to TPS628601YCHR, which can be used for performance comparison or as alternatives:
Model Manufacturer's Description
Versions of TPS628602YCHR TI with slightly different output voltages, while other functions are the same
MP2161GJ-Z MPS is a small-package synchronous step-down chip with similar functions
RT8059 Richtek is a synchronous Buck converter suitable for 1A output
AP63200WU Diodes Inc. 2A Synchronous step-down type, suitable for applications with higher current requirements
The TPS62160 TI has a higher voltage input (17V) and is suitable for industrial applications
Circuit design suggestions
Small-sized ceramic capacitors are adopted and arranged close to the VIN and VOUT pins to reduce ripple The layout should be compact to ensure the minimum switching loop and reduce the impact of EMI It is recommended to use a 4-layer PCB routing to optimize heat dissipation and ground integrity The required output voltage can be set by voltage division through the resistor at pin FB
Summary
The TPS628601YCHR is an outstanding micro synchronous step-down converter, particularly suitable for portable, low-power and space-compact systems. Its high efficiency, low standby current and compact packaging make it an ideal solution for power management in the next generation of consumer electronics and industrial systems. For engineers, it not only offers flexible and reliable voltage regulation capabilities, but also significantly simplifies peripheral design and enhances the overall system energy efficiency. If you are looking for a reliable and highly efficient 1A step-down chip, the TPS628601YCHR is an extremely cost-effective choice.
