SIP32408DNP-T1-GE4

SiP32408 and SiP32409 are slew rate controlled load switches designed for 1.1 V to 5.5 V operation. These 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. SiP32408 and SiP32409 feature a low voltage control logic interface (On/Off interface) that can interface with low voltage control signals without extra level shifting circuit. Both SiP32408 and SiP32409 have exceptionally low shutdown current and provide reverse blocking to prevent high current flowing into the power source. SiP32409 integrates a output discharge circuit for fast turn off. Both SiP32408 and SiP32409 are available in TDFN4 package of 1.2 mm by 1.6 mm. SiP32408 and SiP32409 are advanced slew rate controlled high side load switches 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 inrush 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.

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
• Flat row RON down to 1.2 V
• 42 mΩ typical from 1.5 V to 5 V
• RoHS COMPLIANT HALOGEN FREE
• Slew rate controlled turn-on: 2.5 ms at 3.6 V
• Low quiescent current <1 μA when disabled
• Available 10.5 μA typical at VIN = 1.2 V
• Reverse current blocking when switch is off
• Output discharge (SiP32409)