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ST1PS03 Datasheet(PDF) 3 Page - STMicroelectronics

Part # ST1PS03
Description  400 mA nano-quiescent synchronous step-down converter with digital voltage selection, Power Good and load switch
PDF  25 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST1PS03 Datasheet(HTML) 3 Page - STMicroelectronics

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2
Pin configuration
Figure 2. TQFN12 package (top through view)
EN
1
2
3
4
5
11
10
9
8
7
12
6
VOUT_AUX
Table 2. Pin description
Name
Bump name
Description
AUX
1
Enable for the auxiliary output voltage
VIN
2
Input supply voltage. Bypass this pin to ground with a 10 μF capacitor
SW
3
Switching output. Inductor connection
GND
4
Ground
VIN_AUX
5
Input for auxiliary channel
VOUT_AUX
6
Auxiliary output pin (100 mA max. load)
PGOOD
7
Open drain output. It is in high impedance when the output voltage reaches 97%
VOUT
8
Sense pin used to monitor output voltage
D0
9
Output voltage selection inputs
D1
10
D2
11
EN
12
Enable pin. High logic level turns on the IC. VIN threshold referred
ST1PS03
Pin configuration
DS13801 - Rev 1
page 3/25



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