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參數資料
| 型號： | TPS7148QPWR |
| 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： | 5/33頁 |
| 文件大小： | 541K |
| 代理商： | TPS7148QPWR |
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TPS7101Q, TPS7133Q, TPS7148Q, TPS7150Q
TPS7101Y, TPS7133Y, TPS7148Y, TPS7150Y
LOW-DROPOUT VOLTAGE REGULATORS
SLVS092F – NOVEMBER 1994 – REVISED JANUARY 1997
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Figure 3
1200
800
400
0
25
50
75
100
–
PD
DISSIPATION DERATING CURVE
vs
FREE-AIR TEMPERATURE
125
150
1400
1000
600
200
PW and PWP
Package
R
θ
JA = 178
°
C/W
TA – Free-Air Temperature –
°
C
P Package
R
θ
JA = 106
°
C/W
D Package
R
θ
JA = 172
°
C/W
Figure 4
2400
1600
800
0
25
50
75
100
–
PD
3200
4000
DISSIPATION DERATING CURVE
vs
CASE TEMPERATURE
4800
125
150
4400
3600
2800
2000
1200
400
PW Package
R
θ
JC = 31
°
C/W
TC – Case Temperature –
°
C
D Package
R
θ
JC = 57
°
C/W
P Package
R
θ
JC = 46
°
C/W
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.
recommended operating conditions
MIN
2.5
MAX
UNIT
TPS7101Q
10
Input voltage VI
TPS7133Q
3.77
10
V
Input voltage, VI
TPS7148Q
5.2
10
TPS7150Q
5.33
10
High-level input voltage at EN, VIH
Low-level input voltage at EN, VIL
Output current range, IO
Operating virtual junction temperature range, TJ
Minimum input voltage defined in the recommended operating conditions is the maximum specified output voltage plus dropout voltage at the
maximum specified load range. Since dropout voltage is a function of output current, the usable range can be extended for lighter loads. To
calculate the minimum input voltage for your maximum output current, use the following equation: VI(min) = VO(max) + VDO(max load)
Because the TPS7101 s programmable, rDS(on) should be used to calculate VDO before applying the above equation. The equation for calculating
VDO from rDS(on) is given in Note 2 in the electrical characteristics table. The minimum value of 2.5 V is the absolute lower limit for the
recommended input voltage range for the TPS7101.
2
V
0.5
V
0
500
mA
°
C
–40
125
相關PDF資料 |
PDF描述 |
|---|---|
| TPS7148Y | LOW-DROPOUT VOLTAGE REGULATORS |
| TPS7150Q | LOW-DROPOUT VOLTAGE REGULATORS |
| TPS7150QPW | LOW-DROPOUT VOLTAGE REGULATORS |
| TPS7150QPWR | LOW-DROPOUT VOLTAGE REGULATORS |
| TPS7150Y | LOW-DROPOUT VOLTAGE REGULATORS |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS7148QPWRG4 | 功能描述:低壓差穩壓器 - LDO Lowest Dropout PMOS RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TPS7148Y | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-DROPOUT VOLTAGE REGULATORS |
| TPS7148YD | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-DROPOUT VOLTAGE REGULATORS |
| TPS7148YP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-DROPOUT VOLTAGE REGULATORS |
| TPS7148YPW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-DROPOUT VOLTAGE REGULATORS |
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