LTC2955 Series

Pushbutton On/Off Controller with Automatic Turn-On

Catalog

Pushbutton On/Off Controller with Automatic Turn-On

Part	Voltage - Input	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Min]	Voltage - Supply [Max]	Supplier Device Package	Current - Supply	Applications	Package / Case	Mounting Type
Analog Devices LTC2955IDDB-2#TRPBF	36 V	85 °C	-40 °C	1.5 V	36 V	10-DFN (3x2)	1.2 µA	On/Off Controller Push Button	10-WFDFN Exposed Pad	Surface Mount
Analog Devices LTC2955ITS8-1#TRPBF	36 V	85 °C	-40 °C	1.5 V	36 V	TSOT-23-8	1.2 µA	On/Off Controller Push Button	SOT-23-8 Thin TSOT-23-8	Surface Mount
Analog Devices LTC2955IDDB-2#TRMPBF	36 V	85 °C	-40 °C	1.5 V	36 V	10-DFN (3x2)	1.2 µA	On/Off Controller Push Button	10-WFDFN Exposed Pad	Surface Mount
Analog Devices LTC2955IDDB-1#TRMPBF	36 V	85 °C	-40 °C	1.5 V	36 V	10-DFN (3x2)	1.2 µA	On/Off Controller Push Button	10-WFDFN Exposed Pad	Surface Mount
Analog Devices LTC2955CDDB-1#TRMPBF	36 V	70 °C	0 °C	1.5 V	36 V	10-DFN (3x2)	1.2 µA	On/Off Controller Push Button	10-WFDFN Exposed Pad	Surface Mount
Analog Devices LTC2955ITS8-1#TRMPBF	36 V	85 °C	-40 °C	1.5 V	36 V	TSOT-23-8	1.2 µA	On/Off Controller Push Button	SOT-23-8 Thin TSOT-23-8	Surface Mount
Analog Devices LTC2955CTS8-2#TRMPBF	36 V	70 °C	0 °C	1.5 V	36 V	TSOT-23-8	1.2 µA	On/Off Controller Push Button	SOT-23-8 Thin TSOT-23-8	Surface Mount

Catalog

Pushbutton On/Off Controller with Automatic Turn-On

Key Features

• Automatic Turn-On Via Voltage Monitor Input

• Wide Input Supply Range: 1.5V to 36V

• Low Supply Current: 1.2μA

• ±25kV ESD HBM onPBInput

• ±36V Wide Input Voltage forPBInput

• Low Leakage EN Output Allows DC/DC Converter Control (LTC2955-1)

• High VoltageENOutput Drives External P-Channel MOSFET (LTC2955-2)

• Simple Interface Allows Graceful μP Shutdown

• Adjustable Turn-Off Timer

• 10-Lead 3mm × 2mm DFN and 8-Lead ThinSOT™Packages

Description

The LTC2955 is a micropower, pushbutton on/off controller that manages system power by generating a clean enable output from the supply monitor input and the debounced pushbutton input. It features an interrupt output that notifies the system of a pushbutton or low supply event. When the system is ready, it may use the power kill input to shut off power. If the pushbutton remains pressed for more than the configurable turn-off duration, the system power is forced off.The supply input covers a wide range from 1.5V to 36V. The robust pushbutton input handles wide voltage swings of ±36V and ESD strikes to ±25kV (human body model) without latchup or damage. A low 1.2μA supply current maximizes battery run time. Separate versions are available for positive or negative enable polarities.ApplicationsDesktop and Notebook ComputersGPS DevicesPortable InstrumentsAutomotive Electronics