DC1400A Linear Technology, DC1400A Datasheet - Page 8

• Manufacturer Part Number: DC1400A
• Description: BOARD EVAL LTM4608
• Manufacturer: Linear Technology
• Series: LTM®r

Specifications of DC1400A

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.2V, 1.5V, 1.8V, 2.5V, 3.3V
• Current - Output: 8A
• Voltage - Input: 2.5 ~ 5.5 V
• Regulator Topology: Buck
• Frequency - Switching: 1.5MHz
• Board Type: Fully Populated
• Utilized Ic / Part: LTM4608
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -

LTM4608A
FB (E7): The Negative Input of the Error Amplifier. Internally,
this pin is connected to V
Different output voltages can be programmed with an ad-
ditional resistor between FB and GND pins. In PolyPhase
operation, tie FB pins together for parallel operation. See
the Applications Information section for details.
I
Compensation Point. The current comparator threshold
increases with this control voltage. Tie together in parallel
operation.
I
Amplifier. Tie this pin to SGND for single phase operation.
For PolyPhase operation, tie the master’s I
while connecting all of the I
PIN FUNCTIONS
8
TH
THM
(F6): Current Control Threshold and Error Amplifier
(F5): Negative Input to the Internal I
OUT
THM
with a 10k precision resistor.
pins together.
TH
THM
Differential
to SGND
®
PGOOD (C7): 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.
Disabled during margining.
RUN (F1): Run Control Pin. A voltage above 1.5V will turn
on the module.
SW (C3-C5): Switching Node of the Circuit is Used for
Testing Purposes. This can be connected to an electri-
cally open circuit copper pad on the board for improved
thermal performance.
CLKOUT (F2): Output Clock Signal for PolyPhase Opera-
tion. The phase of CLKOUT is determined by the state of
the PHMODE pin.
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