LM317LM/NOPB National Semiconductor, LM317LM/NOPB Datasheet - Page 13

• Manufacturer Part Number: LM317LM/NOPB
• Description: IC REG POSITIVE ADJ 8-SOIC
• Manufacturer: National Semiconductor
• Type: Voltage Regulatorr

Specifications of LM317LM/NOPB

• Regulator Topology: Positive Adjustable
• Voltage - Output: 1.2 ~ 37 V
• Voltage - Input: 4.2 ~ 40 V
• Number Of Regulators: 1
• Current - Output: 100mA
• Current - Limit (min): 100mA
• Operating Temperature: -25°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Current, Output: 100 mA
• Package Type: SOIC-8
• Regulation, Line: 0.01 %/V
• Regulation, Load: 0.1 %
• Regulator Type: Positive Voltage Out
• Temperature, Operating, Range: -40 to +125 °C
• Voltage, Input: 40 V
• Voltage, Noise: 0.003 %
• Voltage, Output: 1.2 to 37 V
• Voltage, Supply, Rejection Ratio: 80 dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Dropout (typical): -
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device
• Other names: *LM317LM; LM317LM

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