
TPS2149
TPS2159
SLVS401 
–
 AUGUST 2001
2
www.ti.com
AVAILABLE OPTIONS
PACKAGE
AND PIN
COUNT
PACKAGED DEVICES
TA
DESCRIPTION
ACTIVE LOW
(SWITCH)
ACTIVE HIGH
(SWITCH)
Adjustable LDO with LDO enable
TSSOP-14
TPS2145IPWP
TPS2155IPWP
3.3-V fixed LDO
MSOP-10
TPS2147IDGQ
TPS2157IDGQ
–
40
°
C to 85
°
C
3.3-V Fixed LDO with LDO enable and LDO output
switch
MSOP-8
TPS2148IDGN
TPS2158IDGN
3.3-V Fixed LDO, shared input with switches
NOTE: All options available taped and reeled. Add an R suffix (e.g. TPS2145IPWPR)
MSOP-8
TPS2149IDGN
TPS2159IDGN
TPS2149, TPS2159
MSOP (DGN) PACKAGE
(TOP VIEW)
EN1
EN2
OC
GND
8
7
6
5
1
2
3
4
OUT1
VIN
LDO_OUT
OUT2
Pins 7 and 8 are active high for TPS2159.
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Input voltage range: V
I(VIN)
,V
I(ENx)
,
Output voltage range: V
O(OUTx)
, V
O(LDO_OUT)
, V
O(OC)
Maximum output current, I
O(OC)
Continuous output current, I
O(OUT)
, I
O(LDO_OUT)
Continuous total power dissipation
Operating virtual-junction temperature range, T
J
Storage temperature range, T
stg
Lead temperature soldering 1,6 mm (1/16 inch) from case for 10 seconds
Electrostatic discharge (ESD) protection:
–
0.3 V to 6 V
–
0.3 V to 6 V
±
10
mA
Internally limited
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
See Dissipation Rating Table
–
40
°
C to 110
°
C
–
65
°
C to 150
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Charged device model (CDM)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
260
°
C
2 kV
1 kV
Human body model
Stresses beyond those listed under 
“
absolute maximum ratings
”
 may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under 
“
recommended operating conditions
”
 is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
All voltages are with respect to GND.
DISSIPATION RATING TABLE
PACKAGE
TA 
≤
 25
°
C
POWER RATING
DERATING FACTOR
ABOVE TA = 25
°
C
17.1 mW/
°
C
TA = 70
°
C
POWER RATING
TA = 85
°
C
POWER RATING
MSOP8
1455.5 mW
684.9 mW
428.08 mW