First line: Input 1.2V 5.0V Output SRDB-07A Series Nonisolated Compact, profile surface mount package Fixed frequency High efficiency means less power dissipation Excellent thermal performance Optimized cost Remote on/off Undervoltage lockout (UVLO) Over current short circuit protection Remote senseAbstract: .. SRDB-07A250 Trim Resistor Calculation. Rtrim down = 3.926 Vo – Vo, adj – 4.64 Kohm Rtrim up = 4.02. Vo, adj – Vo – 1.47 Kohm SRDB-07A180 SRDB-07A180 Trim Resistor Calculation. Rtrim down = 3.869 Vo – Vo, adj – 11 .. Tags: 7.3 kohm resistorSRDB-07A