STW41412/T ST-Ericsson Inc, STW41412/T Datasheet - Page 20

• Manufacturer Part Number: STW41412/T
• Description: IC CONV DC/DC STPDN 16-TFBGA
• Manufacturer: ST-Ericsson Inc
• Type: Step-Down (Buck)r

Specifications of STW41412/T

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 1.3V, 1.8V
• Current - Output: 200mA, 400mA
• Frequency - Switching: 900kHz
• Voltage - Input: 2.7 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

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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