SY8891
SY8891 is 5.5V/1A Synchronous Step Down Regulator manufactured by Silergy.
High Efficiency, 1.5MHz 5.5V/1A Synchronous Step Down Regulator
General Description
The SY8891 is a high efficiency 1.5MHz synchronous step down DC/DC regulator, capable of delivering up to 1A 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 SY8891 is in a space saving, low profile SOT563 package.
Ordering Information
- (-
- )- Tempera ture Code Pa cka ge Code Optional Spec Code
Ordering Number Package type
Note
SY8891ARC
SOT563
--
Typical Application
VIN: 2.5-5.5V
CIN 10μF/6.3V
RPG 100k
ON/ OFF
L1:2.2µH
RH 100k
RL 49.9k EN
VOUT:1.8V
Cff
COUT
22p F 10μF/6.3V
Figure1. Schematic Diagram
Inductor and COUT Selection Table
VOUT [V]
L[μH]
COUT [μF] 10 22 2×22
1.2/1.8/3.3...
