Philips TDA3601Q/4632858 multiple output voltage regulator in a 13 pin sip package, outputs are 5, 2.1, 5, 9.5 and 9.75. Input voltage range 11 to 18VDC. Has 3 microprocessor controlled regulators and two Vp-state controlled voltage regulators. Brand new marked 4632858 Philips. Sold in a package of 10.