SIP32402ADNP-T1GE4

SiP32401A and SiP32402A are slew rate controlled load switches designed for 1.1 V to 5.5 V operation. The devices guarantee low switch on-resistance at 1.2 V input. They feature a controlled soft-on slew rate of typical 2.5 ms that limits the inrush current for designs of heavy capacitive load and minimizes the resulting voltage droop at the power rails. These devices feature low voltage control logic interface (On/Off interface) that can interface with low voltage control signal without extra level shifting circuit. SiP32402A also integrates an output discharge switch that enables fast shutdown load discharge. Both SiP32401A and SiP32402A have exceptionally low shutdown current and provide reverse blocking to prevent high current flowing into the power source. SiP32401A and SiP32402A are in TDFN4 package of 1.2 mm by 1.6 mm. SiP32401A and SiP32402A are advanced slew rate controlled high side load switch consisted of a n-channel power switch. When the device is enable the gate of the power switch is turned on at a controlled rate to avoid excessive in-rush current. Once fully on the gate to source voltage of the power switch is biased at a constant level. The design gives a flat on resistance throughout the operating voltages. When the device is off, the reverse blocking circuitry prevents current from flowing back to input if output is raised higher than input. The reverse blocking mechanism also works in case of no input applied. The SiP32402A also integrates an output discharge switch which allows fast output discharge.

Applications

• PDAs / smart phones
• Notebook / netbook computers
• Tablet PC
• Portable media players
• Digital camera
• GPS navigation devices
• Data storage devices
• Optical, industrial, medical, and healthcare devices

Key features

• 1.1 V to 5.5 V operation voltage range
• 62 mΩ typical from 2 V to 5 V
• Low Rₒₙ down to 1.2 V
• RoHS COMPLIANT
• Slew rate controlled turn-on: 2.5 ms at 3.6 V
• HALOGEN FREE
• Fast shutdown load discharge for SiP32402A Available
• Low quiescent current <1 μA when disabled, 10.5 μA typical at Vᵢₙ = 1.2 V
• Reverse current blocking when switch is off