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STW4141 Scheda tecnica(PDF) 11 Page - STMicroelectronics

Il numero della parte STW4141
Spiegazioni elettronici  Single-coil dual-output step-down DC/DC converter for digital base band and multimedia processor supply
PDF  31 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STW4141 Scheda tecnica(HTML) 11 Page - STMicroelectronics

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Electrical characteristics
STw4141
10/30
2.4
Dynamic electrical characteristics
Characteristics measured over recommended operating conditions unless otherwise is
noted.
All typical values are referred to TA = 25°C, PVDD = 3.6V, VDD = 3.6V.
Auto functions
VAUTOH
Voltage selection
threshold high
0.9
V
VAUTOL
Voltage selection
threshold low
0.4
V
State functions
VSTATEH
Voltage selection
threshold high
RLmax = 100k, CLmax = 10pF
0.7VOUT1
V
VSTATEL
Voltage selection
threshold low
RLmax = 100k, CLmax = 10pF
0.3 VOUT1
V
1.
. This condition must always be valid.
2.
Output voltage accuracy excludes line and load transients
Table 4.
DC electrical characteristics (continued)
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
VOUT1
VOUT2
≥
Table 5.
Dynamic electrical characteristics
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
fSW
Switching frequency
900
kHz
fSYNC
Sync mode frequency
600
1500
kHz
Ts
Settling time (soft start)
400
µs
TS2
Settling time
VOUT2 (reduced)/VOUT2
VSEL change from GND to VDD
80
µs



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