LTC1710 Datasheet | Linear Technology

LTC1710 SMBus Dual Monolithic High Side Switch Features s s s s s s s s s s DESCRIPTION The LTC®1710 SMBus dual switch has two built-in 0.4Ω/ 300m A switches that are controlled by a 2-wire SMBus interface. With a low standby current of 14µA (3.3V), the LTC1710 operates over an input voltage range of 2.7V to 5.5V while maintaining the SMBus specified 0.6V VIL and 1.4V VIH input thresholds. Using the 2-wire interface, CLK and DATA, the LTC1710 follows SMBus’s Send Byte Protocol to independently control the two 0.4Ω internal N-channel power switches, which are fully enhanced by onboard charge pumps. The LTC1710 has one three-state programmable address pin that allows three different addresses for a total of six available switches on the same bus. The LTC1710 also Features a separate user-controlled drain supply (SW0D) to Switch 0 so that it can be used to control SMBus peripherials using a different power supply. , LTC and LT are registered trademarks of Linear Technology Corporation. Two 0.4Ω/300m A N-Channel Switches Available in MS8 and SO-8 Packages SMBus and I2C patible 0.6V VIL and 1.4V VIH for DATA and CLK Low Standby Current: 14µA Separate Drain Connection to SW0 Three Addresses from One Three-State Address Pin Independent Control of Up to Six Switches Built-In Power-On Reset Timer Built-In Undervoltage Lockout U APPLICATIONS s s s s s s Handheld puter Power Management puter Peripheral Control Laptop puter Power Plane Switching Portable Equipment Power Control Industrial Control Systems ACPI SMBus Interface TYPICAL APPLICATION Switch Voltage Drop vs Load Current VCC 2.7V TO 5.5V 10µF 8 SW0 CLOCK FROM SMBus DATA AD1 (PROGRAMMABLE) 5 6 3 SW1 LTC1710 4 1710 TA01 SW0D 0V TO VCC 1 10µF TA = 25°C SWITCH VOLTAGE DROP (m V) 2 CHARGE PUMP LOAD 1 200 VCC = 2.7V 100 VCC = 3.3V VCC = 5V 0 0 200 100 300 LOAD CURRENT (m A) 400 1710 TA02 LOAD...