SC1458
Pin Descriptions
Pin #
SC1458A SC1458B
1
1
2
2
3
3
4
4
5
5
6
6
T
T
Pin Name
OUTB
VIN
OUTA
GND
EN
PGOOD
BYP
Thermal
Pad
Pin Function
Output for LDOB
Input supply voltage terminal
Output for LDOA
Analog and digital ground
Logic Input — active high enables the SC1458.
Open drain logic output — monitors output of LDOA, switches low when the output drops out
of regulation.
LDO bypass output — bypass with a 22nF capacitor.
Pad is for heatsinking purposes — not connected internally. Connect exposed pad to ground
using multiple vias.
7