LTM4613 datasheet(8/30 Pages) LINER

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LTM4613

4613fd

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VFB (Pin F12): The Negative Input of the Error Ampli-

fier. Internally, this pin is connected to VOUT with a 100k

0.5% precision resistor. Different output voltages can be

programmed with an additional resistor between the VFB

and SGND pins. See the Applications Information section.

MARG0 (Pin C12): LSB Logic Input for the Margining

Function. Together with the MARG1 pin, the MARG0 pin

will determine if a margin high, margin low, or no margin

state is applied. The pin has an internal pull-down resistor

of 50k. See the Applications Information section.

MARG1 (Pins C11, D12): MSB Logic Input for the Margin-

ing Function. Together with the MARG0 pin, the MARG1

pin will determine if a margin high, margin low, or no

marginstateisapplied.Thepinshaveaninternalpull-down

resistor of 50k. See the Applications Information section.

SGND (Pins D9, H12): Signal Ground Pins. These pins

connect to PGND at output capacitor point.

COMP (Pins A11, D11): Current Control Threshold and

Error Amplifier Compensation Point. The current com-

parator threshold increases with this control voltage. The

voltage ranges from 0V to 2.4V with 0.7V corresponding

to zero sense voltage (zero current).

PGOOD (Pin G12): Output Voltage Power Good Indicator.

Open-drain logic output that is pulled to ground when the

output voltage is not within ±10% of the regulation point,

after a 25µs power bad mask timer expires.

RUN (Pins A10, B9): Run Control Pins. A voltage above

1.9V will turn on the module, and below 1V will turn off

the module. A programmable UVLO function can be ac-

complished with a resistor from VIN to this pin that has a

5.1V Zener to ground. Maximum pin voltage is 5V.

MTP (Pins J12, K12, L12): No Connect Pins. Leave float-

ing. Used for mounting to PCB.

PIN FUNCTIONS

LTM4613 Datasheet(PDF) 8 Page - Linear Technology