DescriptionThe LD49150xx is a high-bandwidth, low-dropout, 1.5 A voltage regulator, ideal for powering core voltages of low-power microprocessors. The LD49150xx implements a dual supply configuration allowing for very low output impedance and very fast transient response. The LD49150xx requires a bias input supply and a main input supply, allowing for ultra-low input voltages on the main supply rail. The input supply operates from 1.4 V to 5.5 V and the bias supply requires between 3 V and 6 V for proper operation. The LD49150xx offers fixed output voltages from 0.8 V to 1.8 V and adjustable output voltages down to 0.8 V.The LD49150xx requires a minimum output capacitance for stability, and work optimally with small ceramic capacitors.Applications Graphics processors PC add-in cards Microprocessor core voltage supply Low voltage digital ICs High efficiency linear power suppliesSMPS post regulatorsPPAKDFN6 (3x3 mm)Table 1.Device summaryPart numbersOrder codesOutput voltagesPPAK (tape an Features Input voltage range:VI = 1.4 V to 5.5 VV BIAS = 3 V to 6 VStable with ceramic capacitor1.5 % initial toleranceMaximum dropout voltage (VI - VO) of 200 mV over temperature Adjustable output voltage down to 0.8 V Ultra fast transient response (up to 10 MHz bandwidth) Excellent line and load regulation specifications Logic controlled shutdown optionThermal shutdown and current limit protectionJunction temperature range: - 25 C to 125 CDescriptionThe LD49150xx is a high-bandwidth, low-dropout, 1.5 A voltage regulator, ideal for powering core voltages of low-power microprocessors. The LD49150xx implements a dual supply configuration allowing for very low output impedance and very fast transient response. The LD49150xx requires a bias input supply and a main input supply, allowing for ultra-low input voltages on the main supply rail. The input supply operates from 1.4 V to 5.5 V and the bias supply requires between 3 V and 6 V for proper operation. The LD49150xx offers fixed output specifications Logic controlled shutdown optio