ST890：1.2 A current limited high side power switch with thermal shutdown

The ST890 device is a low voltage, P-channel MOSFET power switch intended for high-side load switching applications.

The switch operates with inputs from 2.7 V to 5.5 V, making it ideal for both 3 V and 5 V systems.

The internal current limiting circuitry protects the input supply against overload. The thermal overload protection limits power dissipation and junction temperatures.

The maximum current limit is 1.2 A. The current limit through the switch is programmed with a resistor from SET to ground. The devices are available in SO-8 and DFN8L (3 x 3 mm) packages.

Key Features

2.7 to 5.5 V input range
Programmable current limit up to 1.2 A
Low quiescent current
Thermal shutdown
Active-lowFAULT indicator output
90 mΩ (typ.) ON resistance
SO-8 and DFN8L (3 x 3 mm) packages

Product Specifications

Description	Version	Size
DS2696: 1.2 A current limited high-side power switch with thermal shutdown	10.0	935 KB

Application Notes

Description	Version	Size
AN1441: ST890: a high side switch for PCMCIA and USB applications	2.3	375 KB
AN2148: STOTG04 IN AUDIO CARKIT ENVIRONMENT	1.0	86 KB

Sample & Buy

Part Number	Package	Packing Type	Operating Temperature (°C) (min)	Operating Temperature (°C) (max)	Autoshutdown	Unit Price (US$) *	Quantity	ECCN (EU)	ECCN (US)	Country of Origin
ST890BDR	SO-8	Tape And Reel	-40	85	-	0.78	1000	NEC	EAR99	CHINA
ST890DTR	VFDFPN 8 3x3x0.85	Tape And Reel	-40	85	-	0.85	1000	NEC	EAR99	THAILAND
ST890CDR	SO-8	Tape And Reel	-40	85	-	0.78	1000	NEC	EAR99	CHINA

Quality & Reliability

Part Number	Package	Grade	RoHS Compliance Grade	Material Declaration**
ST890BDR	SO-8	Industrial	Ecopack3
ST890DTR	VFDFPN 8 3x3x0.85	Industrial	Ecopack3	md_75-wspc-vfdfpn8-wspc-3x3x0.85ptc0.65ep_an75-wspc-ud91aa6-wspc-lock.pdf md_75-wspc-vfdfpn8-wspc-3x3x0.xml
ST890CDR	SO-8	Industrial	Ecopack3