HTCSEMI HT337A
The HT337 is an adjustable 3−terminal negative voltage regulator capable of supplying in excess of 1.5 A over an output voltage range of −1.2 V to − 37 V. This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage. The HT337 serves a wide variety of applications including local, on card regulation.FEATURES
● Output Current in Excess of 1.5 A● Output Adjustable between −1.2 V and −37 V
● Internal Thermal Overload Protection
● Internal Short Circuit Current Limiting Constant with Temperature
● Output Transistor Safe−Area Compensation
● Floating Operation for High Voltage
APPLICATIONS
● Eliminates Stocking many Fixed Voltages● Available in Surface Mount D2PAK and Standard 3−Lead Transistor Package
● These Devices are Pb−Free and are RoHS Compliant PIN CONNECTIONS Pin 1. Vin 2. Vout 3. Vout 4. Adjust 5. N.C. 6. Vout 7. Vout 8. N.C. 8 1 ESOP8 E SUFFIX HT337AREZ SOT223 D 1 SUFFIX HT337ARDZ TO252 M 1 SUFFIX HT337ARMZ TO263 S SUFFIX 1 HT337ARSZ IPROG Cin* + 1.0 mF IAdj R2 R1 120 CO** + 1.0 mF Vin Vout -Vin HT337 -Vout * Cin is required if regulator is located more than 4 inches from power supply filter. * A 1.0 mF solid tantalum or 10 mF aluminum electrolytic is recommended. ** CO is necessary for stability. A 1.0 mF solid tantalum or 10 mF aluminum electrolytic ** is recommended. ǒ Ǔ Vout + –1.25 V 1 ) R2 R1 Figure 1.