Brand new RT8239 QFN-20
The RT8239A/B/C is a dual step down, Switch Mode Power Supply (SMPS) controller which generates logic supply voltages for battery powered systems. It includes two Pulse Width Modulation (PWM) controllers adjustable from 2V to 5.5V and also two fixed 5V/3.3V linear regulators. One of the controllers (LDO5) provides automatic switch over to the BYP1 input connected to the main SMPS1 output for maximized efficiency. An optional external charge pump can be monitored through SECFB (RT8239B/C). Other features include on board power up sequencing, a power good output, internal softstart, and a soft discharge output that prevents negative voltage during shutdown.
RT8239 8239A 8239B 8239C JC= UP1589
Board Code: ZIWB2/ZIWB3/ZIWE1 LA-B091P CPU Code: SR23Y CPU: Intel Core i5-5200U GPU Code: AMD 216-0856050 GPU: ATI Mobility Radeon R5 M230
Board Code: ZPT10 LA-B151P CPU Code: SR1SE CPU: Intel Mobile Pentium N3520 GPU Code: Integrated
Board Code: MBPNCBT414-1320, MBPNCBT414-1320 CPU Code: SR27G,SR1E3, SR1YV, SR1YJ CPU: Intel Core i3-5005U, Intel Pentium 3556U, Intel Mobile Celeron N2940, Intel Mobile Celeron N2840 GPU Code: Integrated
Board Code: DA0ZHLMB6D0 REV: D CPU Code: M2100ICJ23H CPU: AMD E1-Series E1-2100 GPU: Integrated