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LD2981ABXX Datasheet(PDF) 4 Page - STMicroelectronics

Part # LD2981ABXX
Description  Ultra low drop voltage regulators with inhibit low ESR output capacitors compatible
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LD2981ABXX Datasheet(HTML) 4 Page - STMicroelectronics

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Pin configuration
LD2981ABxx - LD2981Cxx
4/23
2
Pin configuration
Figure 2.
Pin connections (top view)
SOT-89
SOT23-5L
Table 2.
Pin description
Pin n°
SOT23-5L
Pin n°
SOT-89
Symbol
Name and function
13
VIN
Input port
2
2
GND
Ground pin
3INHIBIT
Control switch ON/OFF. Inhibit is not internally pulled-up; it cannot be
left floating. Disable the device when connected to GND or to a
positive voltage less than 0.18 V
4
NC
Not connected
51
VOUT
Output port
Table 3.
Thermal data
Symbol
Parameter
SOT23-5L
SOT-89
Unit
RthJC
Thermal resistance junction-case
81
15
°C/W
RthJA
Thermal resistance junction-ambient
255
110
°C/W


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