LM2940-5.0 MDE National Semiconductor, LM2940-5.0 MDE Datasheet - Page 2

• Manufacturer Part Number: LM2940-5.0 MDE
• Manufacturer: National Semiconductor

© 2011 National Semiconductor Corporation
1A Low Dropout Regulator
General Description
The LM2940 positive voltage regulator features the ability to
source 1A of output current with a dropout voltage of typically
0.5V and a maximum of 1V over the entire temperature range.
Furthermore, a quiescent current reduction circuit has been
included which reduces the ground current when the differ-
ential between the input voltage and the output voltage ex-
ceeds approximately 3V. The quiescent current with 1A of
output current and an input-output differential of 5V is there-
fore only 30 mA. Higher quiescent currents only exist when
the regulator is in the dropout mode (V
Designed also for vehicular applications, the LM2940 and all
regulated circuitry are protected from reverse battery instal-
lations or 2-battery jumps. During line transients, such as load
dump when the input voltage can momentarily exceed the
specified maximum operating voltage, the regulator will au-
Ordering Information
Note 1: FOR ADDITIONAL DIE INFORMATION, PLEASE VISIT THE HI REL WEB SITE AT: www.national.com/analog/space/level_die
NS Part Number
LM2940WG-5.0/883
LM2940WG5.0RLQV
ELDRS FREE
LM2940GW-5.0/883
LM2940GW5.0RLQV
ELDRS FREE
LM2940–5.0 MDE
ELDRS FREE
(Note
(Note
(Note
7)
7)
7)
SMD Part Number
5962-8958701XA
5962R8958702VXA
100 krad(Si)
5962-8958703XA
5962R8958704VXA
100 krad(Si)
5962R8958702V9A
100 krad(Si)
IN
201584
− V
OUT
≤
3V).
LM2940QML
NS Package Number
tomatically shut down to protect both the internal circuits and
the load. The LM2940 cannot be harmed by temporary mirror-
image insertion. Familiar regulator features such as short
circuit and thermal overload protection are also provided.
Features
■
■
■
■
■
■
■
Available with radiation guarantee
— ELDRS Free
Dropout voltage typically 0.5V @I
Output current in excess of 1A
Output voltage trimmed before assembly
Reverse battery protection
Internal short circuit current limit
Mirror image insertion protection
(Note
WG16A
WG16A
WG16A
WG16A
1)
Package Description
16LD Ceramic SOIC
16LD Ceramic SOIC
16LD Ceramic SOIC
16LD Ceramic SOIC
BARE DIE
O
= 1A
October 12, 2011
www.national.com
100 krad(Si)