MIC94044YFL-TR Microchip

MIC94044/5 28m R 3A High Side Load Switch DSON in 1.2mm x 1.2mm MLF Package General Description Features The MIC94044 and MIC94045 are high-side load switches 28m R DSON designed to operate from 1.7V to 5.5V input voltage. The 3A continuous operating current load switch pass element is an internal 28m R DSON 1.2mm x 1.2mm space saving 4-pin MLF package P-channel MOSFET which enables the device to support 1.7V to 5.5V input voltage range up to 3A of continuous current. Additionally, the load switch supports 1.5V logic level control and shutdown Internal level shift for CMOS/TTL control logic features in a tiny 1.2mm x 1.2mm 4 pin MLF package. Ultra low quiescent current The MIC94044/5 provides a slew rate controlled soft-start Micro-power shutdown current turn-on of 1ms (typical) to prevent an in-rush current event Soft-Start: 1ms from pulling down the input supply voltage. Load discharge circuit: MIC94045 The MIC94045 features an active load discharge circuit Ultra fast turn off time which switches in a 200 load when the switch is disabled Junction operating temperature from -40C to +125C to automatically discharge a capacitive load. Internal level shift circuitry allows low voltage logic signals to switch higher supply voltages. The enable voltage can Applications be as high as 5.5V and is not limited by the input voltage. Solid State Drives (SSD) The MIC94044/5 operating voltage range makes them Cellular phones ideal for Lithium ion and NiMH/NiCad/Alkaline battery Portable Navigation Devices (PND) powered systems, as well as non-battery powered applications. The devices provide low quiescent current Personal Media Players (PMP) and low shutdown current to maximize battery life. Ultra Mobile PCs Data sheets and support documentation can be found on Portable instrumentation Micrels web site at: www.micrel.com. Other Portable applications PDAs Industrial and DataComm equipment Typical Application MIC94044 (1ms soft-start) MIC94045 (1ms soft-start with auto-discharge) MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC94044/5 Ordering Information Part Number Marking Soft-Start Load Discharge Package MIC94044YFL 1ms 4-Pin 1.2mm x 1.2mm MLF P5 MIC94045YFL 1ms 4-Pin 1.2mm x 1.2mm MLF P6 Notes: 1. MLF Pin 1 Identifier symbol is z . 2. Over bar symbol () may not be to scale. 3. MLF is a GREEN RoHS-compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free. Pin Configuration 4-Pin 1.2mm x 1.2mm MLF (Top View) Pin Description Pin Number Pin Name Description 1 V Drain of P-channel MOSFET. OUT 2 GND Ground should be connected to electrical ground. 3 V Source of P-channel MOSFET. IN 4 EN Enable (Input): Active-high CMOS/TTL control input for switch. Do not leave floating. M9999-032311-A March 2011 2