LM317LZ National Semiconductor, LM317LZ Datasheet - Page 13
LM317LZ
Manufacturer Part Number
LM317LZ
Description
IC, ADJ LINEAR REG, 1.2V TO 37V, TO-92-3
Manufacturer
National Semiconductor
Datasheet
1.LM317LITPNOPB.pdf
(20 pages)
Specifications of LM317LZ
Primary Input Voltage
40V
Output Voltage Adjustable Range
1.2V To 37V
Dropout Voltage Vdo
1.8V
No. Of Outputs
1
No. Of Pins
3
Output Current
100mA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Q1, Q2: NSD134 or similar
C1, C2: 1μF, 200V mylar**
*Heat sink
**Mylar is a registered trademark of DuPont Co.
A1 = LM301A, LM307, or LF13741 only
Tracking Regulator
Precision High Voltage Regulator
906431
13
R1, R2 = matched resistors with good TC tracking
Trim Procedure:
—If V
—Then if V
—Then if V
This will trim the output to well within ±1% of 22.00 V
expense or uncertainty of a trim pot (see LB-46). Of course, this technique
can be used at any output voltage level.
OUT
Regulator With Trimmable Output Voltage
is 23.08V or higher, cut out R3 (if lower, don't cut it out).
OUT
OUT
is 22.47V or higher, cut out R4 (if lower, don't).
is 22.16V or higher, cut out R5 (if lower, don't).
DC
, without any of the
906430
www.national.com
906432