Description
SiS5219A is optimised to deliver up to 1A peak output
current for start-up conditions where high inrush
current is demanded. Output voltage is set by x2
external resistors and enabled or shut down by CMOS
or TTL signalling. The device exhibits low dropout
voltage and ground current, when disabled current
consumption drops to near zero. The part is optimised
for ultra-low noise performance delivering 500nV/√Hz
typical and lower with an optional bypass capacitor.
Rugged with high stability, internal limiting + thermal
shutdown features for overload immunity, the part suits
use in high performance high reliability applications.

Features:
Wide VIN 2.4V - 16V
Output current capability: 1A
Low dropout voltage:
o < 330 mV (IOUT = 500mA)
o < 550 mV (IOUT = 1000mA)
0.003% Line, 0.2% Load regulation (Typ)
Low ground current: < 13mA (IOUT = 500mA)
Ultra-Low output noise: 300 nV/√Hz with CBYPASS
CMOS/TTL-Compatible Enable/Shutdown Control
Near-Zero Shutdown Current
Current + thermal limiting + rev. polarity protection
Low temperature coefficient.