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TPS65140-Q1 Datasheet, PDF (5/25 Pages) Texas Instruments – TRIPLE OUTPUT LCD SUPPLY WITH LINEAR REGULATOR AND POWER GOOD
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TPS65140-Q1
TPS65145-Q1
www.ti.com ................................................................................................................................................. SGLS277A – NOVEMBER 2004 – REVISED APRIL 2008
ELECTRICAL CHARACTERISTICS (continued)
VIN = 3.3 V, EN = VIN, Vo1 = 10 V, TA= -40°C to 85°C, typical values are at TA = 25C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
Vd
D1 – D4 Shottky diode
forward voltage
ID1-D4 = 40 mA
IO
Minimum output current
Line regulation
10 V ≤ Vo1 ≤ 15 V, Iload = 10 mA,
Vo3 = 27 V
Load regulation
1 mA ≤ IO ≤ 20 mA, Vo3 = 27 V
LINEAR REGULATOR CONTROLLER Vo4
Vo4
IBASE
Output voltage
Maximum base drive
current
Line regulation
Load regulation
Start up current
4.5 V ≤ VI ≤ 5.5 V; 10 mA ≤ IO ≤ 500 mA
VIN-Vo4-VBE≥ 0.5 V(1)
VIN-Vo4-VBE≥ 0.75 V (1)
4.75 V ≤ VI ≤ 5.5 V, Iload = 500 mA
1 mA ≤ IO ≤ 500 mA, VI = 5 V
Vo4 ≤ 0.8 V
SYSTEM POWER GOOD (PG)
V(PG, VO1)
V(PG, VO2)
V(PG, VO3)
VOL
IL
Power good threshold(2)
PG output low voltage
PG output leakage current
I(sink) = 500 A
VPG = 5 V
MIN
TYP
610
20
0.56
0.05
3.2
3.3
13.5
19
20
27
0.186
0.064
11
20
-12 -8.75% Vo1
-13 -9.5% Vo2
-11
-8% Vo3
0.001
MAX
720
UNIT
mV
mA
%/V
%/mA
3.4
V
mA
%/V
%/A
25
mA
-6
V
-5
V
-5
V
0.3
V
1
µA
(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 three outputs (Vo1, Vo2, Vo3) are above their threshold. The power good goes low as soon as one
of the outputs is below their threshold.
DEVICE INFORMATION
PWP PACKAGE
TOP VIEW
FB1 1
FB4 2
BASE 3
VIN 4
SW 5
SW 6
PGND 7
PGND 8
SUP 9
PG 10
GND 11
FB3 12
24 EN
23 ENR
22 COMP
21 FB2
20 REF
19 GND
18 DRV
17 C1−
16 C1+
15 C2−/MODE
14 C2+
13 OUT3
Copyright © 2004–2008, Texas Instruments Incorporated
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