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L4909 |
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| Part Number | L4909 |
| Manufacturer | STMicroelectronics (https://www.st.com/) |
| Description | It is a monolithic Multifunction Voltage Regulator; it contains 3 regulators, (REG1, REG2, REG3) each one with an enable input and a feedback input, to allow the voltage setting via external resistive... |
| Features |
ifunction Voltage Regulator; it contains 3 regulators, (REG1, REG2, REG3) each one with an enable input and a feedback input, to allow the voltage setting via external resistive divider.
BLOCK DIAGRAM
REF THERMAL SHUTDOWN EN1 EN2 EN3 6 7 9 + ENABLE CONTROL + REFERENCE GENERATOR REG1 REG2 REG3 + REF+20%
+
3,13 +
VINA, VINB
+
REG1
-
2 1 +
VO1 FB1
OC
5 OVER CURRENT CHECK 4
+
REG2
-
14 15 +
+
VO2 FB2
TRIG
+
REG3
GND
8 +
-
11 10
VO3 FB3
D00AU1171
May 2000
1/7
L4909
PIN CONNECTION
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
FB2 VO2 VINB N.C. VO3 FB3 EN3 GND EN2 EN1 OC TRIG VINA ... |
| Document |
 L4909 Data Sheet
PDF 61.54KB |
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Desde 2024. D4U Semiconductor.
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