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TPS65140RGER Datasheet(PDF) 5 Page - Texas Instruments

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No. de pieza TPS65140RGER
Descripción Electrónicos  TRIPLE OUTPUT LCD SUPPLY WITH LINEAR REGULATOR AND POWER GOOD
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS65140RGER Datasheet(HTML) 5 Page - Texas Instruments

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DEVICE INFORMATION
1
2
3
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8
9
10
11
12
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23
22
21
20
19
18
17
16
15
14
13
FB1
FB4
BASE
VIN
SW
SW
PGND
PGND
SUP
PG
GND
FB3
EN
ENR
COMP
FB2
REF
GND
DRV
C1−
C1+
C2−/MODE
C2+
OUT3
1
2
3
4
5
6
18
17
16
15
14
13
7
8
9 10 11 12
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Exposed
Thermal Die*
COMP
ENR
EN
FB1
FB4
BASE
C2−/MODE
C2+
OUT3
FB3
GND
PG
PWP PACKAGE
TOP VIEW
RGE PACKAGE
TOP VIEW
TPS65140
TPS65145
SLVS497B – SEPTEMBER 2003 – REVISED MARCH 2004
ELECTRICAL CHARACTERISTICS (continued)
V
in = 3.3 V, EN = VIN, Vo1 = 10 V, TA= -40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Q3 P-Channel switch
9.9
15.5
rDS(on)
Q4 N-Channel switch
1.1
1.8
rDS(on)
rDS(on)
IO = 20 mA
Q5 P-Channel switch
4.6
8.5
rDS(on)
Q6 N-Channel switch
1.2
2.2
rDS(on)
D1 – D4 Shottky diode for-
Vd
ID1-D4 = 40 mA
610
720
mV
ward voltage
IO
Minimum output current
20
mA
10 V
≤ Vo1 ≤ 15 V, I
load = 10 mA, Vo3 =
Line regulation
0.56
%/V
27 V
Load regulation
1 mA
≤ I
O≤ 20 mA, Vo3 = 27 V
0.05
%/mA
LINEAR REGULATOR CONTROLLER Vo4
Vo4
Output voltage
4.5 V
≤V
I≤ 5.5 V; 10 mA ≤ IO≤500 mA
3.2
3.3
3.4
V
Vin-Vo4-VBE≥ 0.5 V
(1)
13.5
19
Maximum base drive cur-
IBASE
mA
rent
Vin-Vo4-VBE≥ 0.75 V
(1)
20
27
Line regulation
4.75 V
≤ V
I≤5.5 V, Iload = 500 mA
0.186
%/V
Load regulation
1 mA
≤ I
O≤ 500 mA, VI = 5 V
0.064
%/A
Start up current
Vo4
≤ 0.8 V
11
20
25
mA
SYSTEM POWER GOOD (PG)
V(PG, VO1)
-12
-8.75% Vo1
-6
V
V(PG, VO2)
Power good threshold(2)
-13
-9.5% Vo2
-5
V
V(PG, VO3)
-11
-8% Vo3
-5
V
VOL
PG output low voltage
I(sink) = 500 µA
0.3
V
IL
PG output leakage current
VPG = 5 V
0.001
1
uA
(1)
With Vin = supply voltage of the TPS65140, Vo4 = output voltage of the regulator, VBE = basis emitter voltage of external transistor.
(2)
The power good goes high when all 3 outputs (Vo1, Vo2, Vo3) are above their threshold. The power good goes low as soon as one of
the outputs is below their threshold.
5


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