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TPS79301, TPS79318
TPS79325, TPS79328, TPS793285
TPS79330, TPS79333, TPS793475
SLVS348H – JULY 2001 – REVISED OCTOBER 2004
DISSIPATION RATINGS TABLE
BOARD
Low-K
(1)
High-K
(2)
Low-K
(1)
High-K
(2)
(1)
(2)
PACKAGE
DBV
DBV
YEQ
YEQ
R
θJC
65°C/W
65°C/W
27°C/W
27°C/W
R
θJA
255°C/W
180°C/W
255°C/W
190°C/W
DERATING FACTOR
ABOVE T
A
= 25°C
3.9 mW/°C
5.6 mW/°C
3.9 mW/°C
5.3 mW/°C
T
A
≤
25°C
POWER
RATING
390 mW
560 mW
390 mW
530 mW
T
A
= 70°C
POWER
RATING
215 mW
310 mW
215 mW
296 mW
T
A
= 85°C
POWER
RATING
155 mW
225 mW
155 mW
216 mW
The JEDEC low-K (1s) board design used to derive this data was a 3-inch x 3-inch, two layer board with 2 ounce copper traces on top
of the board.
The JEDEC high-K (2s2p) board design used to derive this data was a 3-inch x 3-inch, multilayer board with 1 ounce internal power and
ground planes and 2 ounce copper traces on top and bottom of the board.
ELECTRICAL CHARACTERISTICS
over recommended operating temperature range T
J
= -40 to 125°C, V
EN
= V
IN
, V
IN
= V
OUT(nom)
+ 1 V
(1)
, I
OUT
= 1 mA,
C
OUT
= 10 µF, C
NR
= 0.01 µF (unless otherwise noted). Typical values are at 25°C.
PARAMETER
V
IN
Input voltage
(1)
I
OUT
Continuous output current
V
FB
Internal reference (TPS79301)
Output voltage range (TPS79301)
TPS79318
TPS79325
TPS79328
Output voltage
TPS793285
TPS79330
TPS79333
TPS793475
Line regulation (∆V
OUT
%/∆V
IN
)
(1)
Load regulation (∆V
OUT
%/∆I
OUT
)
TPS79328
TPS793285
Dropout voltage
(2)
(V
IN
= V
OUT(nom)
- 0.1V)
TPS79330
TPS79333
TPS793475
Output current limit
GND pin current
Shutdown
current
(3)
FB pin current
0 µA < I
OUT
< 200 mA,
0 µA < I
OUT
< 200 mA,
0 µA < I
OUT
< 200 mA,
0 µA < I
OUT
< 200 mA,
0 µA < I
OUT
< 200 mA,
0 µA
≤
I
OUT
< 200 mA,
0 µA < I
OUT
< 200 mA,
V
OUT
+ 1 V < V
IN
≤
5.5 V
0 µA < I
OUT
< 200 mA,
I
OUT
= 200 mA
I
OUT
= 200 mA
I
OUT
= 200 mA
I
OUT
= 200 mA
I
OUT
= 200 mA
V
OUT
= 0 V
0 µA < I
OUT
< 200 mA
V
EN
= 0 V, 2.7 V < V
IN
< 5.5 V
V
FB
= 1.8 V
f = 100 Hz, T
J
= 25°C,
Power-supply ripple rejection
TPS79328
f = 100 Hz, T
J
= 25°C,
f = 10 kHz, T
J
= 25°C,
f = 100 kHz, T
J
= 25°C,
BW = 200 Hz to 100 kHz,
I
OUT
= 200 mA
I
OUT
= 10 mA
I
OUT
= 200 mA
I
OUT
= 200 mA
I
OUT
= 200 mA
C
NR
= 0.001 µF
Output noise voltage (TPS79328)
C
NR
= 0.0047 µF
C
NR
= 0.01 µF
C
NR
= 0.1 µF
55
36
33
32
µV
RMS
70
68
70
43
dB
285
170
0.07
T
J
= 25°C
2.8 V < V
IN
< 5.5 V
3.5 V < V
IN
< 5.5 V
3.8 V < V
IN
< 5.5 V
3.85 V < V
IN
< 5.5 V
4 V < V
IN
< 5.5 V
4.3 V < V
IN
< 5.5 V
5.25 V < V
IN
< 5.5 V
TEST CONDITIONS
MIN
2.7
0
1.201
V
FB
1.764
2.45
2.744
2.793
2.94
3.234
4.655
1.8
2.5
2.8
2.85
3
3.3
4.75
0.05
5
120
120
112
102
77
600
220
1
1
200
200
200
180
125
mA
µA
µA
µA
mV
1.225
TYP
MAX
5.5
200
1.250
5.5 - V
DO
1.836
2.55
2.856
2.907
3.06
3.366
4.845
0.12
UNIT
V
mA
V
V
V
V
V
V
V
V
V
%/V
mV
(1)
(2)
(3)
Minimum V
IN
is 2.7 V or V
OUT
+ V
DO
, whichever is greater.
Dropout is not measured for the TPS79318 and TPS79325 since minimum V
IN
= 2.7 V.
For adjustable versions, this applies only after V
IN
is applied; then V
EN
transitions high to low.
3
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