4 Pin Configuration and Functions

Figure 4-1 5-Lead SOT-23 See DBV Package

Table 4-1 Pin Descriptions

Pin Number	Pin Name	Function	Connection
1	HYST	Hysteresis control, digital input	GND for 10°C or V⁺ for 2°C
2	GND	Ground, connected to the back side of the die through lead frame.	System GND
3	NC	Not Connected Inside Part	Ground or No Connect
4	V⁺	Supply input	2.7V to 5.5V with a 0.1µF bypass capacitor. For PSRR information see Section Titled NOISE CONSIDERATIONS.
5⁽¹⁾	OS	Overtemperature Shutdown open-drain active low thermostat digital output	Controller interrupt, system or power supply shutdown; pull-up resistor ≥ 10kΩ
	OS	Overtemperature Shutdown push-pull active high thermostat digital output	Controller interrupt, system or power supply shutdown
	US	Undertemperature Shutdown open-drain active low thermostat digital output	System or power supply shutdown; pull-up resistor ≥ 10kΩ
	US	Undertemperature Shutdown push-pull active high thermostat digital output	System or power supply shutdown

(1) Pin 5 functionality and trip point setting are programmed during LM26NV manufacture.