DC3195A-B

Product Details

The DC3195A-B evaluation board features the LTM^®4652 μModule^® (micromodule) regulator, which is configured as a quad polyphase single –5V output capable of bidirectional ±128A load current. The input voltage range is 4.5V to 13V. The maximum V_IN + |V_OUT| should not exceed 18V for this inverting output evaluation board. Derating is necessary for certain V_IN, V_OUT, frequency, and thermal conditions.

The DC3195A-B evaluation board can be configured to source or sink the output load current. Figure 2 and Figure 3 show the hardware test setup diagrams for both conditions, respectively. The evaluation board is optimized using a default frequency of 780kHz under the 9_VIN and –5V_OUT operating conditions. The LTM4652 current mode architecture is peak current mode control. The evaluation board operates in continuous current mode (CCM) by default, but it can be placed in pulse-skipping mode (PSM) to optimize efficiency at light loads.

The LTM4652 is available in a thermally enhanced 144-pin (16mm × 16mm × 4.92mm) BGA package. Temperature sensing options are included through the onboard circuit.

The LTM4652 features an exposed metal top which is electrically unconnected for heatsinking capability.

The inverting configuration feature of the LTM4652 has a different maximum current limit compared to the noninverting configuration feature. (Refer to DN1021 for more information). The LTM4652 data sheet gives a complete description of the device. The data sheet and this user guide must be read before using or making any hardware changes to the DC3195A-B evaluation board.