LMZ12003DEMO/NOPB National Semiconductor, LMZ12003DEMO/NOPB Datasheet - Page 4

• Manufacturer Part Number: LMZ12003DEMO/NOPB
• Description: BOARD DEV PWR MODULE LMZ12003
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r

Specifications of LMZ12003DEMO/NOPB

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.8V
• Current - Output: 3A
• Voltage - Input: 4.5 ~ 20 V
• Regulator Topology: Buck
• Frequency - Switching: Up to 1MHz
• Board Type: Fully Populated
• Utilized Ic / Part: LMZ12003
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -
• Other names: LMZ12003DEMO

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ing cycle. The secondary function of the RON resistor is to
create a nearly constant operating frequency over the input
operating voltage range. If the output voltage of the regulator
is changed by adjusting the feedback divider then it is gener-
ally required that the RON resistor value also be changed in
order to maintain the same operating frequency.
Cout A parallel connection of a 1uF 50V and a 100uF 6.3V
multilayer ceramic are used for the output capacitor. Loca-
Performance Characteristics
Line and Load Regulation @ 25°C
Efficiency, 12 V Input@ 25°C
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tions are provided on the PCB assembly for experimenting
with additional output capacitors..
CinA 10 uF 50V multilayer ceramic is connected as the input
filter. Locations are provided on the PCB assembly for exper-
imenting with additional input capacitors.
Dissipation, 12 V Input@ 25°C
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