APE8858

Advanced Power Electronics Corp. FEATURES Low ESR Output Capacitor (MLCC and POSCAP) Applicable 0.5V Reference Voltage with 2% Accuracy Internal Soft-Start Enable Control Under-Voltage Short Circuit Protection Fast Transient Response Power OK Output with a Delay Time Adjustable Output Voltage Down to 0.5V Drive N-Channel MOSFETs Halogen Free & RoHS Compliant APE8858 DESCRIPTION The APE8858 is an ultra low output voltage linear NFET controller. This product is specifically designed to provide well supply voltage for front-side-bus termination on motherboards and NB applications. The APE8858 integrates many functions. A Power-On-Reset (POR) circuit monitors supply voltages to prevent wrong operations. A POK indicates the output status with time delay which is set internally. It can control other converter for power sequence. The APE8858 can be enabled by other power system. A 0.5V reference voltage with 2% accuracy provide tight regulation of the output voltage, enable control, open drain power good signal, under-voltage protection and soft start. ULTRA LOW OUTPUT VOLTAGE LINEAR N-FET CONTROLLER TYPICAL APPLICATION Vin=1.8V VCC=5V U1 1 C3 0.1uF 2 3 VCC GND POK APE8858 DRV FB EN 6 5 4 1000pF R1 20K Q1 MOSFET N www.DataSheet.net/ C1 4.7uF Vout=1.5V C2 R2 10K 10uF R1 VOUT = 0.5V * (1 + ------ ) R2 VFB = 0.5V ; R2 range 1 ~ 100k 10K ORDERING INFORMATION APE8858 -HF Package Y : SOT-26 Halogen Free Data and specifications subject to change without notice 1 200905086 Data...