The SR20 & SRA40 are 20W and 40W (respectively) constant frequency, current mode step-up switching regulators with excellent line and load regulation that accept 5Vin to 17Vin and provide 9, 12, 15, 18 and 24Vout. High switching frequency and SMD technology makes achieving high power density, low cost and high reliability possible. The SR20 & SRA40 require a low impedance power source or minimum 1000礔 input and output capacitors for proper operation. Both models come in a 2󪻐.39-inch package size. Applications include Battery Chargers/Backup, External Modems, xDSL Power Supplies, Telecom Hardware, LAN and Network Systems, and Point-of-Sale (POS) Systems.