STW4141 STMicroelectronics, STW4141 Datasheet - Page 19

• Manufacturer Part Number: STW4141
• Description: Single Coil Dual Output Step Down Dc/dc Converter For Digital Base Band And Multimedia Processor Supply
• Manufacturer: STMicroelectronics

STw4141
4
4.1
Application information
User mode details
The following table describes the different user modes available. Depending on the
application constraints (processor I/O pins available) and expected efficiency, PWM or PFM
mode are forced or automatically controlled by STw4141 internal digital gates.
Table 6.
Table 7.
OFF
FORCED
AUTO
Mode
STw4141 available user modes
Operating mode information (STATE pin - digital output)
Shutdown
Forced PFM
Forced PWM
Forced PWM and synchronized external
clock
Auto mode
Forced PWM
Forced PWM and synchronized external
clock
Operation mode
PWM
PFM
User mode/pins
EN
State pin voltage level
H
H
H
H
H
H
L
VOUT1
Application information
GND
AUTO
X
H
H
H
L
L
L
MODE/SYNC
CLK
CLK
H
H
X
L
L
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