Silergy SY8081
The SY8081 is a high efficiency 2.5MHz synchronous step down DC/DC regulator capable of delivering up to 1A output currents. It can operate over a wide input voltage range from 2.5V to 5.5V and integrates main switch and synchronous switch with very low RDS (ON) to minimize the conduction loss.| Part No. | SY8081 |
|---|---|
| Datasheet | SY8081 Download |
| Manufacturer |  Silergy |
| Description | 1A Synchronous Step Down Regulator |
| Buy | Stock & Price |
GENERAL DESCRIPTION
Ordering Information SY8081 □(□□)□ Temperature Code Package Code Optional Spec Code Ordering Number Package Type Note SY8081DQC DFN1.5×1.5-6 1AFEATURES
● Low RDS(ON) for Internal Switches (Top/Bottom) 230mΩ/150mΩ● 2.5~5.5V Input Voltage Range
● High Switching Frequency 2.5MHz Minimizes the External Components
● Internal Soft-start Limits the Inrush Current
● 100% Dropout Operation
● RoHS Compliant and Halogen Free
● Output Auto Discharge Function
● Compact Package: DFN1.5×1.5-6
APPLICATIONS
● Portable Navigation Device● Set Top Box
● USB Dongle
● Media Player
● Smart phone Typical
APPLICATIONS
VIN 2. 5~5.5V CIN 10µF ON/ OFF IN EN SG ND L1 1. 0µH LX VOUT 1. 2V R1 100k C1 10pF COUT 4. 7µF FB PG ND R2 100k Figure1. Schematic Diagram Efficiency (%) Efficiency vs. Load Current (L=1μ H/VL F40 14S T-1R0) 95 90 85 80 VIN =3.3 V,V OU T= 1.8 V 75 VIN =4.2 V,V OU T= 1.8 V VIN=5V, VOUT=1.8V 70 0. 00 1 0. 01 0. 1 1 10 Load Current (A) Figure2. Efficiency SY8081 Rev.1.0 ©2021 Silergy Corp.
