SY8120B1 PDF datasheet can download.
This product has Synchronous Step Down Regulator functions.
This is one of the semiconductor types. This part name is SY8120B1.
Manufacturers of the product is Silergy.
Image and pinout :
Some of the text files within the PDF file
Application Note: SY8120B1 High Efficiency Fast Response, 2A, 18V Input Synchronous Step Down Regulator General
SY8120B1 develops high efficiency synchronous stepdown DC-DC converter capable of delivering 2A load current . SY8120B1 operates over a wide input voltage range from 4.5V to 18V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. SY8120B1 adopts the instant PWM architecture to achieve fast transient responses for high step down applications and high efficiency at light loads. In addition, it operates at pseudo-constant frequency of 500 kHz under heavy load conditions to minimize the size of inductor and capacitor. Ordering Information SY8120 ( ) □ □□ □ Temperature Code Package Code Optional Spec Code Temperature Range: -40°C to 85°C Ordering Number Package type Note SY8120B1ABC SOT23-6 — Features • Low RDS(ON) for internal switches (top/bottom):130/120 mΩ • 4.5-18V input voltage range [ … ]
Please refer to the file for details.