|
Details, datasheet, quote on part number:LM2931CMX
| |
| Part: | LM2931CMX |
| Category: | Power Management => Regulators => Linear Voltage Regulators => LDO (Low Drop Out) => Positive Voltage->Adjustable |
| Description: | LM2931 - Series Low Dropout Regulators, Package: Soic Narrow, Pin Nb=8 |
| Company: | National Semiconductor Corporation |
| Datasheet: | Download LM2931CMX datasheet File size : 366 kB |
| Request For quote: | Find where to buy LM2931CMX
|
| |
Datasheet text preview:
LM2931 Series Low Dropout Regulators
March 2002
LM2931 Series Low Dropout Regulators
General Description
The LM2931 positive voltage regulator features a very low quiescent current of 1mA or less when supplying 10mA loads. This unique characteristic and the extremely low input-output differential required for proper regulation (0.2V for output currents of 10mA) make the LM2931 the ideal regulator for standby power systems. Applications include memory standby circuits, CMOS and other low power processor power supplies as well as systems demanding as much as 100mA of output current. Designed originally for automotive applications, the LM2931 and all regulated circuitry are protected from reverse battery installations or 2 battery jumps. During line transients, such as a load dump (60V) when the input voltage to the regulator can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both internal circuits and the load. The LM2931 cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided. The LM2931 family includes a fixed 5V output ( ± 3.8% tolerance for A grade) or an adjustable output with ON/OFF pin. Both versions are available in a TO-220 power package, TO-263 surface mount package, and an 8-lead surface mount package. The fixed output version is also available in the TO-92 plastic and 6-Bump micro SMD packages.
Features
Very low quiescent current Output current in excess of 100 mA Input-output differential less than 0.6V Reverse battery protection 60V load dump protection -50V reverse transient protection Short circuit protection Internal thermal overload protection Mirror-image insertion protection Available in TO-220, TO-92, TO-263, SO-8 or 6-Bump micro SMD packages n Available as adjustable with TTL compatible switch n See AN-1112 for micro SMD considerations n n n n n n n n n n
Connection Diagrams
FIXED VOLTAGE OUTPUT TO-220 3-Lead Power Package TO-263 Surface-Mount Package
00525406
Front View
00525411
Top View
00525412
Side View 8-Pin Surface Mount TO-92 Plastic Package
00525408
Bottom View
00525407
Top View
*NC = Not internally connected. Must be electrically isolated from the rest of the circuit for the micro SMD package.
© 2002 National Semiconductor Corporation
DS005254
www.national.com
LM2931
Connection Diagrams
(Continued) micro SMD Laser Mark
6-Bump micro SMD
00525439 00525438
Top View (Bump Side Down) ADJUSTABLE OUTPUT VOLTAGE TO-220 5-Lead Power Package TO-263 5-Lead Surface-Mount Package
00525409
Front View
00525413
Top View
00525414
Side View 8-Pin Surface Mount
00525410
Top View
www.national.com
2
LM2931
Ordering Information
Output Number 5V Package 3-Pin TO-220 3-Pin TO-263 TO-92 8-Pin SOIC
* 6-Bump micro SMD
Part Number LM2931T-5.0 LM2931AT-5.0 LM2931S-5.0 LM2931AS-5.0 LM2931Z-5.0 LM2931AZ-5.0 LM2931M-5.0 LM2931AM-5.0 LM2931IBPX-5.0 LM2931CT LM2931CS LM2931CM LM2931IBPX-3.3
Package Marking LM2931T-5.0 LM2931AT-5.0 LM2931S-5.0 LM2931AS-5.0 LM2931Z-5 LM2931AZ 2931M-5.0 2931AM-5.0 LM2931CT LM2931CS LM2931CM -
Transport Media Rails Rails Rails Rails 1.8k Units per Box 1.8k Units per Box Rails Rails Tape and Reel Rails Rails Rails Tape and Reel
NSC Drawing T03B TS3B Z03A M08A BPA06HTA T05A TS5B M08A BPA06HTB
Adjustable, 3V to 24V
5-Pin TO-220 5-Pin TO-263 8-Pin SOIC
3.3V
* 6-Bump micro SMD
Note: The micro SMD package marking is a single digit manufacturing Date Code Only.
3
www.national.com
|
|
