D ts e t
aa h e
R c e t r lc r nc
o h se Ee to is
Ma u a t r dCo o e t
n fc u e
mp n n s
R c e tr b a d d c mp n ns ae
o h se rn e
o oet r
ma ua trd u ig ete dewaes
n fcue sn i r i/ fr
h
p rh s d f m te oiia s p l r
uc a e r
o h r n l u pi s
g
e
o R c e tr waes rce td f m
r o h se
fr e rae r
o
te oiia I. Al rce t n ae
h
r nl P
g
l e rai s r
o
d n wi tea p o a o teOC
o e t h p rv l f h
h
M.
P r aetse u igoiia fcoy
at r e td sn r n la tr
s
g
ts p o rmso R c e tr e eo e
e t rga
r o h se d v lp d
ts s lt n t g aa te p o u t
e t oui s o u rne
o
rd c
me t o e c e teOC d t s e t
es r x e d h
M aa h e.
Qu l yOv riw
ai
t
e ve
• IO- 0 1
S 90
•A 92 cr ct n
S 1 0 et ai
i
o
• Qu l e Ma ua trr Ls (
ai d
n fcues it QML MI- R -
) LP F
385
53
•C a sQ Mitr
ls
lay
i
•C a sVS a eL v l
ls
p c ee
• Qu l e S p l r Ls o D sr uos( L )
ai d u pi s it f it b tr QS D
e
i
•R c e trsacic l u pir oD A a d
o h se i
r ia s p l t L n
t
e
me t aln u t a dD A sa d r s
es lid sr n L tn ad .
y
R c e tr lcrnc , L i c mmi e t
o h se Ee t is L C s o
o
tdo
t
s p ligp o u t ta s t f c so r x e t-
u pyn rd cs h t ai y u tme e p ca
s
t n fr u lya daee u loto eoiial
i s o q ai n r q a t h s r n l
o
t
g
y
s p l db id sr ma ua trr.
u pi
e yn ut
y n fcues
T eoiia ma ua trr d ts e t c o a yn ti d c me t e e t tep r r n e
h r n l n fcue’ aa h e a c mp n ig hs o u n r cs h ef ma c
g
s
o
a ds e ic t n o teR c e tr n fcue v rino ti d vc . o h se Ee t n
n p c ai s f h o h se ma ua trd eso f hs e ie R c e tr lcr -
o
o
isg aa te tep r r n eo i s mio d co p o u t t teoiia OE s e ic -
c u rne s h ef ma c ft e c n u tr rd cs o h r n l M p c a
o
s
g
t n .T pc lv le aefr eee c p r o e o l. eti mii m o ma i m rt g
i s ‘y ia’ au s r o rfrn e up s s ny C r n nmu
o
a
r xmu ai s
n
ma b b s do p o u t h rceiain d sg , i lt n o s mpetsig
y e a e n rd c c aa tr t , e in smuai , r a l e t .
z o
o
n
© 2 1 R cetr l t n s LC Al i t R sre 0 1 2 1
0 3 ohs E cr i , L . lRg s eevd 7 1 0 3
e e oc
h
T l r m r, l s v iw wrcl . m
o e n oe p ae it w . e c o
a
e
s
o ec
LP2980 Micropower 50 mA Ultra Low-Dropout Regulator In SOT-23 and micro SMD Packages
September 2006
LP2980
Micropower 50 mA Ultra Low-Dropout Regulator In
SOT-23 and micro SMD Packages
General Description
The LP2980 is a 50 mA, fixed-output voltage regulator de-
signed specifically to meet the requirements of battery-
powered applications.
Using an optimized VIP
™
(Vertically Integrated PNP) pro-
cess, the LP2980 delivers unequaled performance in all
specifications critical to battery-powered designs:
Dropout Voltage.
Typically 120 mV
@
50 mA load, and 7 mV
@
1 mA load.
Ground Pin Current.
Typically 375 µA
@
50 mA load, and 80
µA
@
1 mA load.
Sleep Mode.
Less than 1 µA quiescent current when ON/
OFF pin is pulled low.
Smallest Possible Size.
SOT-23 and micro SMD packages
use an absolute minimum board space.
Minimum Part Count.
Requires only 1 µF of external ca-
pacitance on the regulator output.
Precision Output.
0.5% tolerance output voltages available
(A grade).
5.0V, 3.3V, and 3.0V versions available as standard prod-
ucts.
Features
n
n
n
n
n
n
n
n
n
n
n
n
n
Ultra low dropout voltage
Output voltage accuracy 0.5% (A Grade)
Guaranteed 50 mA output current
Smallest possible size (SOT-23, micro SMD package)
Requires only 1 µF external capacitance
<
1 µA quiescent current when shutdown
Low ground pin current at all load currents
High peak current capability (150 mA typical)
Wide supply voltage range (16V max)
Fast dynamic response to line and load
Low Z
OUT
over wide frequency range
Overtemperature/overcurrent protection
−40˚C to +125˚C junction temperature range
Applications
n
n
n
n
Cellular Phone
Palmtop/Laptop Computer
Personal Digital Assistant (PDA)
Camcorder, Personal Stereo, Camera
Block Diagram
01207801
VIP
™
is a trademark of National Semiconductor Corporation.
© 2006 National Semiconductor Corporation
DS012078
www.national.com
LP2980
Connection Diagram and Ordering Information
5-Lead Small Outline Package (M5)
micro SMD, 5 Bump Package (BPA05)
01207803
Top View
See NS Package Number MF05A
For ordering information see
Table 1
01207864
Note:
The actual physical placement of the package marking will vary from
part to part. Package marking contains date code and lot traceability
information, and will vary considerably. Package marking does not correlate
to device type.
Top View
See NS Package Number BPA05
Pin Descriptions
Name
SOT-23
V
IN
GND
ON/OFF
N/C
V
OUT
1
2
3
4
5
Pin Number
micro SMD
C3
A1
A3
B2
C1
Input Voltage
Common Ground (device substrate)
Logic high enable input
Post package trim -
do not
connect to this pin
Regulated output voltage
Function
Ordering Information
TABLE 1. Package Marking and Order Information
Output Voltage
(V)
Grade
Order Information
Package
Marking
Supplied as:
5-Lead Small Outline Package (M5)
For output voltages
≤
2.3V, refer to LP2980LV datasheet. If a non-standard voltage is required, see LP2980-ADJ.
2.5
2.5
2.5
2.5
2.6
2.6
2.6
2.6
2.7
2.7
2.7
2.7
2.8
2.8
2.8
2.8
2.9
2.9
2.9
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
LP2980AIM5X-2.5
LP2980AIM5-2.5
LP2980IM5X-2.5
LP2980IM5-2.5
LP2980AIM5X-2.6
LP2980AIM5-2.6
LP2980IM5X-2.6
LP2980IM5-2.6
LP2980AIM5X-2.7
LP2980AIM5-2.7
LP2980IM5X-2.7
LP2980IM5-2.7
LP2980AIM5X-2.8
LP2980AIM5-2.8
LP2980IM5X-2.8
LP2980IM5-2.8
LP2980AIM5X-2.9
LP2980AIM5-2.9
LP2980IM5X-2.9
L0NA
L0NA
L0NB
L0NB
L48A
L48A
L48B
L48B
L26A
L26A
L26B
L26B
L13A
L13A
L13B
L13B
L12A
L12A
L12B
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
www.national.com
2
LP2980
Ordering Information
Output Voltage
(V)
2.9
3.0
3.0
3.0
3.0
3.1
3.1
3.1
3.1
3.2
3.2
3.2
3.2
3.3
3.3
3.3
3.3
3.5
3.5
3.5
3.5
3.6
3.6
3.6
3.6
3.8
3.8
3.8
3.8
4.0
4.0
4.0
4.0
4.5
4.5
4.5
4.5
4.7
4.7
4.7
4.7
5.0
5.0
5.0
5.0
3.3
Grade
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
A
STD
STD
A
(Continued)
TABLE 1. Package Marking and Order Information
(Continued)
Order Information
LP2980IM5-2.9
LP2980AIM5X-3.0
LP2980AIM5-3.0
LP2980IM5X-3.0
LP2980IM5-3.0
LP2980AIM5X-3.1
LP2980AIM5-3.1
LP2980IM5X-3.1
LP2980IM5-3.1
LP2980AIM5X-3.2
LP2980AIM5-3.2
LP2980IM5X-3.2
LP2980IM5-3.2
LP2980AIM5X-3.3
LP2980AIM5-3.3
LP2980IM5X-3.3
LP2980IM5-3.3
LP2980AIM5X-3.5
LP2980AIM5-3.5
LP2980IM5X-3.5
LP2980IM5-3.5
LP2980AIM5X-3.6
LP2980AIM5-3.6
LP2980IM5X-3.6
LP2980IM5-3.6
LP2980AIM5X-3.8
LP2980AIM5-3.8
LP2980IM5X-3.8
LP2980IM5-3.8
LP2980AIM5X-4.0
LP2980AIM5-4.0
LP2980IM5X-4.0
LP2980IM5-4.0
LP2980AIM5X-4.5
LP2980AIM5-4.5
LP2980IM5X-4.5
LP2980IM5-4.5
LP2980AIM5X-4.7
LP2980AIM5-4.7
LP2980IM5X-4.7
LP2980IM5-4.7
LP2980AIM5X-5.0
LP2980AIM5-5.0
LP2980IM5X-5.0
LP2980IM5-5.0
LP2980AIBP-3.3
Package
Marking
L12B
L02A
L02A
L02B
L02B
L30A
L30A
L30B
L30B
L31A
L31A
L31B
L31B
L00A
L00A
L00B
L00B
L27A
L27A
L27B
L27B
L28A
L28A
L28B
L28B
L21A
L21A
L21B
L21B
L25A
L25A
L25B
L25B
L0XA
L0XA
L0XB
L0XB
L37A
L37A
L37B
L37B
L01A
L01A
L01B
L01B
Supplied as:
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
250 Units on Tape and Reel
micro SMD, 5 Bump Package (BPA05)
3
www.national.com
LP2980
Ordering Information
Output Voltage
(V)
3.3
3.3
3.3
5.0
5.0
5.0
5.0
Grade
A
STD
STD
A
A
STD
STD
(Continued)
TABLE 1. Package Marking and Order Information
(Continued)
Order Information
LP2980AIBPX-3.3
LP2980IBP-3.3
LP2980IBPX-3.3
LP2980AIBP-5.0
LP2980AIBPX-5.0
LP2980IBP-5.0
LP2980IBPX-5.0
Package
Marking
Supplied as:
3000 Units on Tape and Reel
250 Units on Tape and Reel
3000 Units on Tape and Reel
250 Units on Tape and Reel
3000 Units on Tape and Reel
250 Units on Tape and Reel
3000 Units on Tape and Reel
www.national.com
4