KA7632/KA7633 KA7632 KA7633 10-SIP

KA7632/KA7633 Fixed Multi-output Regulator Features Description · Output Currents up to 0.5A (output1 & 2) ·

www.fairchildsemi.com KA7632/KA7633 KA7632/KA7633 Fixed Multi-output Regulator Features Description · Output Currents up to 0.5A (output1 & 2) · Output Current up to 1A with External Transistor (output3) · Fixed Precision Output 1 voltage 3.3V ± 2% · Fixed Precision Output 2 voltage 8V ± 2% (KA7632 KA7632) · Fixed Precision Output 2 voltage 9V ± 2% (KA7633 KA7633) · Control Signal Generator for Output 3 voltage (5.1V ± 2%) · Reset Facility for Output Voltage1 · Output 2,3 with Disable by TTL Input · Current Limit Protection at Each Output · Thermal Shut Down The KA7632/KA7633 KA7632/KA7633 is a multi-output positive voltage regulator designed to provide fixed precision output voltages of 3.3V, 8V (KA7632 KA7632) / 9V (KA7633 KA7633) at current up to 0.5A and 5.1V at current up to 1A with external PNP transistor. An internal reset circuit generates a reset pulse when the output 1 decrease below the regulated value. Output2 & 3 can be disabled by TTL input. Protection features include over voltage protection, short circuit protection and thermal shutdown. 10-SIP 10-SIP H/S Internal Block Diagram Vin1 Vin2 2 1 OVP Bandgap Reference 10uA DEL.CAP 2.5V + - 3 Cd 100nF 6 RESET 9 Output 1 SCP + 50mV + Vin1 SW Vsys Thermal Shut Down OVP Vin2 10K 7 A614 "Y" Control + - + SCP 10 Output3 Output 2,3 5 GND 8 Output 2 SCP + 1.4V 4 Disable Rev. 1.0.1 ©2001 Fairchild Semiconductor Corporation KA7632/KA7633 KA7632/KA7633 Absolute Maximum Ratings Parameter Symbol Value Unit Remark DC Input Voltage Vin 20 V - Disable Input Voltage Vc 20 V - Output Current Io 0.5 A - Power Dissipation Pd 1.5 W No Heatsink Junction Temperature Tj +150 °C - Topr 0~+125 °C - Operating Temperature Electrical Characteristics(KA7632 KA7632) (Refer to test circuit Vin1=6V ,Vin2=10.5V ,Tj = +25 °C, unless otherwise specified) Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage 1 Vo1 Io1=10mA 6V