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PM8903 Fiches technique(PDF) 10 Page - STMicroelectronics

No de pièce PM8903
Description  3 A step-down monolithic switching regulator
PDF  34 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PM8903 Fiches technique(HTML) 10 Page - STMicroelectronics

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Electrical specifications
PM8903
10/34
Doc ID 022748 Rev 1
Over and undervoltage protections
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
IFB
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
VPGOODL
PGOOD voltage low
IPGOOD = -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
TSS
Soft-start time
RPM=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



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