LTM4613 PIN FUNCTIONS VFB (Pin F12): The Negative Input of the Error Ampli- COMP (Pins A11, D11): Current Control Threshold and fier. Internally, this pin is connected to VOUT with a 100k Error Amplifier Compensation Point. The current com- 0.5% precision resistor. Different output voltages can be parator threshold increases with this control voltage. The programmed with an additional resistor between the VFB voltage ranges from 0V to 2.4V with 0.7V corresponding and SGND pins. See the Applications Information section. to zero sense voltage (zero current). MARG0 (Pin C12): LSB Logic Input for the Margining PGOOD (Pin G12): Output Voltage Power Good Indicator. Function. Together with the MARG1 pin, the MARG0 pin Open-drain logic output that is pulled to ground when the will determine if a margin high, margin low, or no margin output voltage is not within ±10% of the regulation point, state is applied. The pin has an internal pull-down resistor after a 25µs power bad mask timer expires. of 50k. See the Applications Information section. RUN (Pins A10, B9): Run Control Pins. A voltage above MARG1 (Pins C11, D12): MSB Logic Input for the Margin- 1.9V will turn on the module, and below 1V will turn off ing Function. Together with the MARG0 pin, the MARG1 the module. A programmable UVLO function can be ac- pin will determine if a margin high, margin low, or no complished with a resistor from VIN to this pin that has a margin state is applied. The pins have an internal pull-down 5.1V Zener to ground. Maximum pin voltage is 5V. resistor of 50k. See the Applications Information section. MTP (Pins J12, K12, L12): No Connect Pins. Leave float- SGND (Pins D9, H12): Signal Ground Pins. These pins ing. Used for mounting to PCB. connect to PGND at output capacitor point. 4613fd 8 For more information www.linear.com/LTM4613 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Package Photograph Related Parts