■ Features

• Compact full-mold package (equivalent to TO220)

• Output current: 0.27A

• Low dropout voltage: VDIF≤0.5V (at IO=0.27A)

• Output ON/OFF control terminal is compatible with LS-TTL. (It may be directly driven by LS-TTL or standard CMOS logic.)

• Built-in foldback overcurrent, thermal protection circuits

• Highly accurate overcurent protection starting current

SI-3157B : 0.3 to 0.7A (VIN=18V)

SI-3025B : 0.3 to 0.7A (When VIN=18V, setting VO=15.7V)

0.3 to 0.75A (When VIN=18V, setting VO=11.7V)

• Variable output voltage type (SI-3025B) also available

■ Applications

• For BS and CS antenna power supplies

• Electronic equipment