器件名称: L78S12C
功能描述: 2A POSITIVE VOLTAGE REGULATORS
文件大小: 262.61KB 共21页
简 介:L78S00 SERIES
2A POSITIVE VOLTAGE REGULATORS
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OUTPUT CURRENT TO 2A OUTPUT VOLTAGES OF 5 ; 7.5 ; 9 ; 10 ; 12 ; 15 ; 18 ; 24V THERMAL OVERLOAD PROTECTION SHORT CIRCUIT PROTECTION OUTPUT TRANSISTOR SOA PROTECTION
DESCRIPTION The L78S00 series of three-terminal positive regulators is available in TO-220 and TO-3 packages and with several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. Each type employs internal current limiting, thermal shut-down and safe area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 2A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. BLOCK DIAGRAM
TO-3
TO-220
January 1993
1/21
L78S00 SERIES
ABSOLUTE MAXIMUM RATINGS
Symbol Vi Io Pt o t T stg To p Parameter DC Input Voltage (for V o = 5 to 18V) (for V o = 24V) Output Current Power Dissipation Storage Temperature Operating Junction Temperature (for L78S00 ) (for L78S00C ) Value 35 40 Internally limited Internally limited – 65 to + 150 – 55 to + 150 0 to + 150 °C °C °C Unit V V
THERMAL DATA
TO-220 R t h j- cas e Thermal Resistance Junction-case R t h j -amb Thermal Resistance Junction-ambient Max Max 3 50 TO-3 4 35 °C/W °C/W
CONNECTION DIAGRAMS AND ORDERIN……
