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參數資料
| 型號： | TPS7148YD |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | LOW-DROPOUT VOLTAGE REGULATORS |
| 中文描述： | 低壓差電壓調節器 |
| 文件頁數： | 4/33頁 |
| 文件大小： | 541K |
| 代理商： | TPS7148YD |
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TPS7101Q, TPS7133Q, TPS7148Q, TPS7150Q
TPS7101Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F – NOVEMBER 1994 – REVISED JANUARY 1997
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
functional block diagram
_
+
Vref = 1.178 V
OUT
SENSE/FB
EN
IN
GND
R1
R2
PG
_
+
TPS7101
TPS7133
TPS7148
TPS7150
NOTE A: Resistors are nominal values only.
DEVICE
UNIT
k
k
k
R1
R2
∞
233
233
233
0
420
726
756
RESISTOR DIVIDER OPTIONS
Switch positions are shown with EN low (active).
For most applications, SENSE should be externally connected to OUT as close as possible to the device. For other implementations, refer to
SENSE-pin connection discussion in Applications Information section.
1.12 V
MOS transistors
Bilpolar transistors
Diodes
Capacitors
Resistors
COMPONENT COUNT
464
41
4
17
76
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
§
Input voltage range
, V
I
, PG, SENSE, EN
Output current, I
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature range, T
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
–0.3 V to 11 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 A
See Dissipation Rating Tables 1 and 2
–55
°
C to 150
°
C
–65
°
C to 150
°
C
260
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
§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 voltage values are with respect to network terminal ground.
DISSIPATION RATING TABLE 1 – FREE-AIR TEMPERATURE (see Figure 3)
#
PACKAGE
TA
≤
25
°
C
POWER RATING
DERATING FACTOR
ABOVE TA = 25
°
C
5.8 mW/ C
9.4 mW/
°
C
5.6 mW/
°
C
TA = 70
°
C
POWER RATING
TA = 125
°
C
POWER RATING
D
P
725 mW
1175 mW
700 mW
464 mW
752 mW
448 mW
145 mW
235 mW
140 mW
PW||
DISSIPATION RATING TABLE 2 – CASE TEMPERATURE (see Figure 4)
#
PACKAGE
TC
≤
25
°
C
POWER RATING
DERATING FACTOR
ABOVE TC = 25
°
C
17.5 mW/
°
C
21 9 mW/
21.9 mW/
°
C
32.2 mW/
°
C
TC = 70
°
C
POWER RATING
TC = 125
°
C
POWER RATING
D
P
2188 mW
2738 mW
4025 mW
1400 mW
1752 mW
2576 mW
438 mW
548 mW
805 mW
PW||
#Dissipation rating tables and figures are provided for maintenance of junction temperature at or below
absolute maximum temperature of 150
°
C. For guidelines on maintaining junction temperature within
recommended operating range, see the Thermal Information section.
||Refer to Thermal Information section for detailed power dissipation considerations when using the TSSOP packages.
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