DC1597A Linear Technology, DC1597A Datasheet - Page 14
![no-image](/images/manufacturer_photos/0/3/388/linear_technology_sml.jpg)
DC1597A
Manufacturer Part Number
DC1597A
Description
BOARD EVAL LTM8031
Manufacturer
Linear Technology
Series
µModuler
Specifications of DC1597A
Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
3.3V
Current - Output
1A
Voltage - Input
5 ~ 36 V
Regulator Topology
Buck
Frequency - Switching
750kHz
Board Type
Fully Populated
Utilized Ic / Part
LTM8031
Lead Free Status / RoHS Status
Not applicable / Not applicable
Power - Output
-
APPLICATIONS INFORMATION
LTM8031
correlation. Bear in mind that the actual thermal resistance
of the LTM8031 to the printed circuit board depends upon
the design of the circuit board. The die temperature of
the LTM8031 must be lower than the maximum rating of
125°C, so care should be taken in the layout of the circuit
to ensure good heat sinking of the LTM8031.
The bulk of the heat fl ow out of the LTM8031 is through the
bottom of the module and the LGA pads into the printed
14
IMPEDANCE
24V SUPPLY
ENERGIZED
LOW
Figure 4. A Well Chosen Input Network Prevents Input Voltage Overshoot and Ensures
Reliable Operation When the LTM8031 is Hot-Plugged to a Live Supply
+
+
+
SIMULATES HOT PLUG
CLOSING SWITCH
AI.EI.
0.1μF
22μF
35V
STRAY
INDUCTANCE
DUE TO 6 FEET
(2 METERS) OF
TWISTED PAIR
+
0.7Ω
I
IN
4.7μF
4.7μF
4.7μF
V
V
FIN
V
IN
IN
IN
LTM8031
LTM8031
LTM8031
(4a)
(4b)
(4c)
circuit board. Consequently a poor printed circuit board
design can cause excessive heating, resulting in impaired
performance or reliability. Please refer to the PCB Layout
section for printed circuit board design suggestions.
Finally, be aware that at high ambient temperatures the
internal Schottky diode will have signifi cant leakage current
increasing the quiescent current of the LTM8031.
20V/DIV
10A/DIV
20V/DIV
10A/DIV
20V/DIV
10A/DIV
V
V
V
I
I
I
IN
IN
IN
IN
IN
IN
DANGER
RINGING V
ABSOLUTE MAXIMUM RATING
20μs/DIV
20μs/DIV
20μs/DIV
IN
MAY EXCEED
8031 F04
8031fa