JM38510/11803BXA National Semiconductor, JM38510/11803BXA Datasheet - Page 5

• Manufacturer Part Number: JM38510/11803BXA
• Description: FULL JAN QUAL (LM137H)
• Manufacturer: National Semiconductor

Specifications of JM38510/11803BXA

• Voltage Regulator Type: Linear
• Topology: Standard
• Regulator Output Type: Adjustable
• Polarity Type: Negative
• Number Of Outputs: Single
• Input Voltage (min): -4.2V
• Input Voltage (max): -40V
• Output Voltage: -1.2 to -37V
• Package Type: TO-39
• Output Current: 500mA
• Power Dissipation: 2W
• Load Regulation: 0.5%
• Line Regulation: 0.02%/V
• Operating Temp Range: -55C to 150C
• Operating Temperature Classification: Military
• Pin Count: 3
• Mounting: Through Hole
• Lead Free Status / Rohs Status: Not Compliant

Connection Diagrams
Application Hints
When a value for θ
a heatsink must be selected that has a value that is less than
or equal to this number.
HEATSINKING SOT-223 PACKAGE PARTS
The SOT-223 (“MP”) packages use a copper plane on the
PCB and the PCB itself as a heatsink. To optimize the heat
sinking ability of the plane and PCB, solder the tab of the
package to the plane.
Figures 3, 4 show the information for the SOT-223 package.
Figure 4 assumes a θ
51˚C/W for 2 ounce copper and a maximum junction tem-
perature of 125˚C.
FIGURE 3. θ
See NS Package Number T03B
(J−A)
Order Number LM337T
(H−A)
SOT-223 Package
vs Copper (2 ounce) Area for the
(J−A)
Plastic Package
is found using the equation shown,
Front View
of 75˚C/W for 1 ounce copper and
TO-220
(Continued)
00906707
00906732
5
Package Marked N02A See NS Package Number MP04A
Please see AN1028 for power enhancement techniques to
be used with the SOT-223 package.
FIGURE 4. Maximum Power Dissipation vs. T
Order Number LM337IMP
the SOT-223 Package
3-Lead SOT-223
Front View
00906734
00906733
www.national.com
AMB
for