IMP Intros IMP2014, IMP2015, IMP2185 CMOS LDO Voltage Regulators

The second family of CMOS low dropout (LDO) voltage regulators from IMP Inc. (San Jose, CA) are claimed to offer up to 41 percent lower dropout voltage than pin-compatible devices offered by TelCom Semiconductor and are designed to serve applications requiring up to 160mA. The IMP2014, IMP2015 and IMP2185 LDOs are targeted at low-power and battery-powered systems such as cell phones, pagers, wireless modems, GPS terminals, PDAs, handheld data terminals, and USB hubs. The new devices offer output voltage options of 2.5, 2.7, 2.85, 3.0, 3.3 and 4.0V. Output accuracy is typically 0.5 percent at room temperature, and better than 2.5 percent at high temperature. The IMP minimum load current is specified at 60mA for the IMP2014, 110mA for the IMP2015 and 160mA for the IMP2185. The LDOs utilize small ceramic chip capacitors for stability, eliminating the need for large tantalum output capacitors. The devices also feature reverse battery protection, current limiting and thermal shutdown protection. A power-saving shutdown mode reduces quiescent current to less than 2uA, and CMOS technology keeps no-load ground current under 50mA. The 60mA IMP2014 offers a dropout voltage of 70mV. All of the devices are available in a 5-pin SOT23A-5 package. Pricing in quantities of 1,000 is $0.68 for the IMP2014, $0.73 for the IMP2015, and $0.83 for the IMP2185.