Pin configuration

LD2985Axx - LD2985Bxx

4/21

2

Pin configuration

Figure 2.

Pin connections (top view)

Table 2.

Pin description

Pin n°

Symbol

Name and function

1

IN

Input port

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 0.18V

4

Bypass

Bypass pin: capacitor to be connected to GND in order to improve the thermal noise

performances

5

OUT

Output port

Table 3.

Thermal data

Symbol

Parameter

SOT23-5L

Unit

Thermal resistance junction-case

81

°C/W

Thermal resistance junction-ambient

255

°C/W