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AAT4612 Datasheet(PDF) 1 Page - Advanced Analogic Technologies |
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AAT4612 Datasheet(HTML) 1 Page - Advanced Analogic Technologies |
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1 / 10 page  SmartSwitch™ AAT4612 Current Limited Load Switch 4612.2002.1.0.9 1 General Description The AAT4612 SmartSwitch™ is a member of AnalogicTech's Application Specific Power MOS- FET™ (ASPM™) product family. It is a Current Limited P-channel MOSFET power switch designed for high-side load-switching applications operating with inputs ranging from 2. 4V to 5.5V which makes it ideal for both 3V and 5V systems. An integrated cur- rent-limiting circuit protects the input supply from large currents which potentially cause the supply to fall out of regulation. In addition, the AAT4612 thermal over- load protection limits power dissipation and junction temperatures associated with prolonged periods of operation in current limit. Due to its low RDS(ON), the AAT4612 can be used to control loads that require up to 1A even while operating at high ambient tempera- tures. The ultra fast current-limit response to a sud- den short circuit is a mere 500ns which reduces the requirements of local supply bypassing. Quiescent current is a low 1 0µA and in shutdown mode, the supply current decreases to less than 1µA. The AAT4612 is available in a 5-pin SOT23, and an 8-pin SC70JW specified over a -40 to 85°C temper- ature range. The AAT4600 Series is a family of adjustable and fixed SmartSwitch™ products with a range of current handling capabilities. Available are single versions with adjustable current limit (AAT4610, AAT4601) as well as fixed current limit (AAT4625), and dual ver- sions with fixed current limit (AAT4626, AAT4670). Features • 2. 4V to 5.5V Input voltage range • 1A current limit trip threshold • Fast transient response: • <1µs response to short circuit • Low quiescent current • 1 0µA typ • 1µA max with Switch off • 100m Ω typical R DS(ON) • Undervoltage Lockout • Thermal Shutdown • Temp range -40 to 85°C • 4kV ESD Rating • 5-pin SOT23 package • 8-pin SC70JW package Applications • Peripheral ports • Notebook computers • Personal communication devices • Hot swap supplies Typical Application AAT4612 SOT23 ON IN OUT GND ON INPUT GND GND C IN 1 µF C OUT 0.47 µF V CC 1 2 5 4 |
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