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LD2981 Datasheet(PDF) 6 Page - STMicroelectronics

Part # LD2981
Description  Ultra low-drop voltage regulators with inhibit
PDF  27 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LD2981 Datasheet(HTML) 6 Page - STMicroelectronics

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Pin configuration
LD2981
6/27
DocID6279 Rev 17
2
Pin configuration
Figure 2: Pin connections (top view)
Table 1: Pin description
Pin n°
SOT23-5L
Pin n°
SOT-89
Symbol
Name and function
1
3
VIN
Input port
2
2
GND
Ground pin
3
INHIBIT
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
5
1
VOUT
Output port
Table 2: 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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