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The PB137 is a positive voltage regulator able to provide 1.5A, at VOUT=13.7V and is intended as a charger for lead acid battery. The main feature is a reverse leakage current (Max 10mA at TJ =0 to 40oC VIN = floating and VOUT = 13.7V). It is available in TO-220 and it 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 1A output current.
PB137 Maximum Ratings
Symbol
Parameter
Value
Unit
Vi
DC Input Voltage
40
V
Io
DC Input Voltage
Internally limited
mA
Ptot
Power Dissipation
Internally limited
mW
Tstg
Storage Temperature Range
- 65 to 150
Top
Operating Junction Temperature Range
0 to 150
PB137 Features
` REVERSELEAKAGECURRENT LESS THAN 10 A ` THREE TERMINAL FIXEDVERSION(13.7V) OUTPUT CURRENT IN EXCESSOF 1.5A ` AVAILABLEIN ± 1% (AC) SELECTIONAT 25 ` TYPICAL DROPOUT VOLTAGE2V ` TEMPERATURE RANGE 0oC TO 150oC