Datasheet

Electrical specifications PM8903A
10/33 Doc ID 024147 Rev 1
Over and undervoltage protection
OVP OVP threshold
FB rising 0.69 0.72 0.75 V
LS turns off, FB falling 0.30 V
UVP UVP threshold FB falling 0.45 0.48 0.51 V
I
FB
FB disconnection bias
current
Sourced from FB 100 nA
Overtemperature protection
OTP
Thermal shutdown
threshold
(1)
140 °C
Thermal shutdown
hysteresis
(1)
40 °C
PGOOD
PGOOD
Upper threshold FB rising 0.69 0.72 0.75 V
Lower threshold FB falling 0.45 0.48 0.51 V
V
PGOODL
PGOOD voltage low I
PGOOD
= -4 mA 0.4 V
ENABLE
EN
Input logic high EN rising 1.5 V
Input logic low EN falling 0.65 V
Hysteresis 150 mV
Deglitching
(1)
Rising and falling edge 3 μs
SS
T
SS
Soft-start time
R
PM
= 0 Ω / 24 kΩ / 180 kΩ / 240 kΩ
or PSKIP/MS pin floating
0.79 ms
1. Guaranteed by design, not subject to test.
Table 6. Electrical characteristics (continued)
Symbol Parameter Test conditions Min. Typ. Max. Unit