參數(shù)資料
型號(hào): LMZ12003EXTTZ
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類(lèi): 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PSSO7
封裝: 10.16 X 13.77 MM, 4.57 MM HEIGHT, ROHS COMPLIANT, TO-PMOD, 7 PIN
文件頁(yè)數(shù): 9/16頁(yè)
文件大小: 3896K
代理商: LMZ12003EXTTZ
Simplified Application Schematic
30117501
Connection Diagram
30117509
Top View
7-Lead TO-PMOD
Ordering Information
Order Number
Package Type
NSC Package Drawing
Supplied As
LMZ12003EXTTZ
TO-PMOD-7
TZA07A
250 Units on Tape and Reel
LMZ12003EXTTZX
TO-PMOD-7
TZA07A
500 Units on Tape and Reel
LMZ12003EXTTZE
TO-PMOD-7
TZA07A
45 Units in a Rail
Pin Descriptions
Pin
Name
Description
1
VIN
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.
2
RON
On Time Resistor — An external resistor from V
IN to this pin sets the on-time of the application. Typical values range
from 25k to 124k ohms.
3
EN
Enable — Input to the precision enable comparator. Rising threshold is 1.18V nominal; 90 mV hysteresis nominal.
Maximum recommended input level is 6.5V.
4
GND
Ground — Reference point for all stated voltages. Must be externally connected to EP.
5
SS
Soft-Start — An internal 8 A current source charges an external capacitor to produce the soft-start function. This node
is discharged at 200 A during disable, over-current, thermal shutdown and internal UVLO conditions.
6
FB
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.
www.national.com
2
LMZ12003EXT
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