LMZ12003EVAL/NOPB National Semiconductor, LMZ12003EVAL/NOPB Datasheet - Page 2

• Manufacturer Part Number: LMZ12003EVAL/NOPB
• Description: BOARD EVAL PWR MODULE LMZ12003
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r

Specifications of LMZ12003EVAL/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: Lead free / RoHS Compliant
• Power - Output: -
• Other names: LMZ12003EVAL

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Pin
Simplified Application Schematic
Connection Diagram
Ordering Information
Pin Descriptions
1
2
3
4
5
LMZ12003TZX-ADJ
LMZ12003TZE-ADJ
LMZ12003TZ-ADJ
Name Description
Order Number
RON
GND
VIN
EN
SS
Supply input — Nominal operating range is 4.5V to 20V . A small amount of internal capacitance is contained within
the package assembly. Additional external input capacitance is required between this pin and exposed pad.
On Time Resistor — An external resistor from V
from 25k to 124k ohms.
Enable — Input to the precision enable comparator. Rising threshold is 1.18V nominal; 90 mV hysteresis nominal.
Maximum recommended input level is 6.5V.
Ground — Reference point for all stated voltages. Must be externally connected to EP.
Soft-Start — An internal 8 µA current source charges an external capacitor to produce the soft-start function. This node
is discharged at 200 µA during disable, over-current, thermal shutdown and internal UVLO conditions.
Package Type
TO-PMOD-7
TO-PMOD-7
TO-PMOD-7
7-Lead TO-PMOD
Top View
IN
2
to this pin sets the on-time of the application. Typical values range
NSC Package Drawing
TZA07A
TZA07A
TZA07A
30109009
250 Units on Tape and Reel
500 Units on Tape and Reel
45 Units in a Rail
Supplied As
30109001