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參數(shù)資料
| 型號： | TPS65123RGT |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | SINGLE-INDUCTOR QUADRUPLE-OUTPUT TFT LCD POWER SUPPLY |
| 中文描述： | 單電感翻兩番，輸出TFT LCD電源 |
| 文件頁數(shù)： | 3/23頁 |
| 文件大?。?/td> | 706K |
| 代理商： | TPS65123RGT |
www.ti.com
ELECTRICAL CHARACTERISTICS
V
IN
= 3.6 V, EN = RUN = V
IN
, L = 10 μH, T
A
= -40
°
C to 85
°
C, typical values are at T
A
= 25
°
C (unless otherwise noted)
TPS65120, TPS65121, TPS65123, TPS65124
SLVS531–JUNE 2004
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
CONVERTER STAGE
R
L_MAIN
≥
330
at V
MAIN
= 5 V,
R
L_VGH
≥
12 k
at V
GH
= 12 V,
R
L_VGL
≥
12 k
at V
= -12 V,
V
LDOIN
= GND, T
A
= -40
°
C to 85
°
C
R
L_MAIN
≥
660
at V
MAIN
= 5 V,
R
L_VGH
≥
24 k
at V
GH
= 12 V,
R
L_VGL
≥
24 k
at V
= -12 V,
V
LDOIN
= GND, T
A
= -20
°
C to 85
°
C
R
L_MAIN
= 250
at V
= 5 V
V
LDOIN
= ENVGH = ENVGL = GND
V
IN
≥
2.7 V
V
IN
≥
2.5 V
V
IN
≥
2.7 V
V
IN
≥
2.5 V
V
IN
≥
2.5 V
V
IN
≥
2.7 V
V
IN
≥
3 V
V
IN
≥
4.5 V
V
MAIN
= 5.0 V, I
BOOT
= 20 mA,
V
GH
= 15 V, V
I
GH
= I
GL
= 100 μA, V
LDOIN
= GND
2.7 V
≤
V
IN
≤
5.5 V
2.7 V
≤
V
IN
≤
5.5 V
V
IN
= V
GS
= 3.6 V
V
IN
= V
GS
= 2.5 V
V
BOOT
= V
GS
= 3.7 V
V
BOOT
= V
GS
= 5 V
Input voltage for full load operation
2.7
5.5
V
V
IN
Minimum input voltage for start-up
2.5
V
f
Switching frequency
4.0
MHz
35
15
35
15
60
P
GH
Output power on V
GH
mW
P
GL
Output power on V
GL
mW
120
150
250
Total output power on
V
BOOT
+ V
GH
+ V
GL
P
TOT
mW
η
Power efficiency
83%
I
LIM
I
START-UP
P-MOS1 current limit
P-MOS1 start-up current limit
150
65
2.5
3.8
1.9
1.4
0.01
0.01
200
mA
mA
4.3
6.9
3.5
2.3
P-MOS1 switch on-resistance
r
DS(ON)
N-MOS1 switch on-resistance
P-MOS1 leakage current
N-MOS1 leakage current
1
1
V
DS
= 6 V
μA
V
GS
= V
BOOT
= 5.5 V, V
SWP
= 2 V,
I
BOOT
= I
D
V
GS
= V
BOOT
= 5.5 V, V
SWP
= 2 V,
I
GH
= I
D
N-MOS2 + P-MOS2 forward voltage drop
400
600
mV
N-MOS3 + D1 forward voltage drop
900
1100
mV
CONVERTER SUPPLY CURRENT
Quiescent current into VIN
Quiescent current into BOOT
I
Q
Quiescent current into VGH
I
MAIN
= I
= I
GL
= 0 mA,
V
GH
= +15 V, V
GL
= -15 V,
V
MAIN
= 5 V, V
FBH
= V
= +1.5 V,
V
FBL
= -0.2 V, V
= 5.25 V,
V
LDOIN
= GND, EN = RUN = V
IN
,
T
A
°
C
T
A
= 25
°
C
140
30
170
60
μA
0.1
1
I
SD
Shutdown current
0.1
1
μA
3
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|---|---|
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