Parallel connected low-dropout regulators (LDOs) are commonly used to share the large load current in communication baseband systems. This paper presents a PCB-friendly, reconfigurable master-slave parallel LDO scheme with analog regulation and digital distribution, to deliver Ampere-level load current with small current mismatches. The proposed LDO adopts a series analog-digital merged control, where the first loop is a high-gain analog error amplifier for high-accuracy regulation, and the second loop utilizes a 6-bit successive approximation register (SAR) analog-to-digital converter (ADC) for the tradeoffs between resolution, energy-efficiency, and fast response. Each LDO can be configured into the master or slave mode. When multiple LDOs are connected in parallel, the master LDO also controls the digital power cells in the slave LDOs. By employing an auxiliary constant current control, the power cells in each LDOs work as a constant current source array. The same control code naturally enables the output current balancing among each LDOs. Fabricated in 65-nm CMOS, the proposed LDO obtains an excellent load regulation of $<$ 1.5mV/A across the full load range of 0-1A, with 99.9% peak current efficiency. For four parallel LDOs with each delivering 1-A load current, the measured current-sharing mismatch is only $<$ 0.76% with no additional external components.