DESCRIPTION The µ PA1981 is a N-Channel/P-Channel MOS FET pair for compact power management in portable electronic equipment where 2.5 to 8 V input and 2.8 A output current capability are needed. This load Switch integrated a small N-Channel MOS FET (Q1), which drives a large P-Channel MOS FET (Q2) in one tiny package (SC-95).
FEATURES • VS2D21 = 0.2 V MAX. (VS2S1 = 5.0 V, ID2 = −2.8 A, RD2S2(on)1 = 70 mΩ) • VS2D22 = 0.2 V MAX. (VS2S1 = 2.5 V, ID2 = −1.9 A, RD2S2(on)2 = 105 mΩ)