lmz12002tzx-adj National Semiconductor Corporation, lmz12002tzx-adj Datasheet - Page 2

• Manufacturer Part Number: lmz12002tzx-adj
• Description: 2a Simple Switcher Power Module With 20v Maximum Input Voltage
• Manufacturer: National Semiconductor Corporation

www.national.com
Pin
Simplified Application Schematic
Connection Diagram
Ordering Information
Pin Descriptions
1
2
3
4
5
6
LMZ12002TZX-ADJ
LMZ12002TZE-ADJ
LMZ12002TZ-ADJ
Name Description
Order Number
RON
GND
VIN
EN
SS
FB
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.
Feedback — Internally connected to the regulation, over-voltage, and short-circuit comparators. The regulation
reference point is 0.8V at this input pin. Connected the feedback resistor divider between the output and ground to set
the output voltage.
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
30114709
250 Units in Tape and Reel
500 Units in Tape and Reel
30114701
45 Units in a Rail
Supplied As