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KA337
3-Terminal 1.5A Negative Adjustable Regulator
Features
• • • • • • • Output current in exc...
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...