KA337

www.fairchildsemi.com KA337 3-Terminal 1.5A Negative Adjustable Regulator Features Output current in excess of 1.5A Output voltage adjustable between -1.2V and - 37V Internal thermal overload protection Internal short circuit current limiting Output transistor safe area compensation Floating operation for high voltage applications Standard 3-pin TO-220 package Description The KA337 is a 3-terminal negative adjustable regulator. It supply in excess of 1.5A over an output voltage range of -1.2V to - 37V. This regulator requires only two external resistor to set the output voltage. Included on the chip are current limiting, thermal overload protection and safe area compensation. TO-220 1 1. Adj 2. Input 3. Output Internal Block Diagram Vadj 1 3 Output Voltage Reference + Protection Circuitry 2 Input Rev. 1.0.0 ©2001 Fairchild Semiconductor Corporation KA337 Absolute Maximum Ratings Parameter Input-Output Voltage Differential Power Dissipation Operating Temperature Range Storage Temperature Range Symbol IVI - VOI PD TOPR TSTG Value 40 Internally limited 0 ~ +125 -65 ~+125 Unit V W °C °C Electrical Characteristics (VI - VO = 5V, IO = 40mA, 0°C ≤ TJ ≤ +125°C, PDMAX = 20W, unless otherwise specified) Parameter Symbol Conditions TA = +25°C 3V ≤ I VI - VO I ≤ 40V 3V ≤ I VI - VO I ≤ 40V TA = +25°C 10mA ≤ IO ≤ 0.5A 10mA ≤ IO ≤ 1.5A Adjustable Pin Current Adjustable Pin Current IADJ ∆IADJ TA =+ 25°C 10mA ≤ IO ≤ 1.5A 3V ≤ I VI - VO I ≤ 40V TA =+ 25°C Referen...