Silergy SY8089A1
SY8089A1 is a high efficiency 1.5MHz synchronous step down DC/DC regulator capable of delivering up to 2A output current. It can operate over a wide input voltage range from 2.5V to 5.5V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. The low output voltage ripple, the small external inductor and the capacitor sizes are achieved with 1.5MHz switching frequency.| Part No. | SY8089A1 |
|---|---|
| Datasheet | SY8089A1 Download |
| Manufacturer |  Silergy |
| Description | 2A Synchronous Step Down Regulator |
| Buy | Stock & Price |
GENERAL DESCRIPTION
Ordering Information SY8089 □(□□)□ Temperature Code Package Code Optional Spec Code Ordering Number Package type Note SY8089A1AAC SOT23-5 -- High Efficiency, 1.5MHz, 2A Synchronous Step Down RegulatorFEATURES
● 2.5V to 5.5V Input Voltage Range● 50μA Low Quiescent Current
● Low RDS(ON) for Internal Switches (Top/Bottom) 130mΩ /85mΩ
● High Switching Frequency 1.5MHz Minimizes the External Components
● Internal Soft-start Limits the Inrush Current
● 100% Dropout Operation
● Hic-cup for Short Circuit Protection
● Output Auto Discharge Function
● RoHS Compliant and Halogen Free
● Compact Package: SOT23-5
APPLICATIONS
● Set Top Box● USB Dongle
● Media Player
● Smart Phone Typical
APPLICATIONS
VIN: 2.5-5.5V CIN 10μF/6.3V IN LX EN FB GND L1:1.0µH VOUT:1.8V RH Cff 100k 22pF COUT 10μF/10V RL 49.9k Figure1. Schematic Diagram VOUT [V] Inductor and COUT Selection Table L [µH] 4.7 COUT [µF] 10 22 2×22 0.47 1.2/ 1.8 1.0 /3.3 2.2 √ √ √ ☆ √ √ √ √ Note: ‘☆ ’ means recommended for most applications.
