參數(shù)資料
型號(hào)： TPS71025PW
廠商： Texas Instruments, Inc.
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： LOW-DROPOUT VOLTAGE REGULATOR
中文描述： 低壓差穩(wěn)壓器
文件頁(yè)數(shù)： 12/20頁(yè)
文件大?。?/td> 308K
代理商： TPS71025PW
TPS71025
LOW-DROPOUT VOLTAGE REGULATOR
SLVS162A – MAY 1997 – REVISED MAY 1998
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
THERMAL INFORMATION
Figure 17
110
90
70
50
0
50
100
Air Flow – ft/min
150
200
250
130
150
THERMAL RESISTANCE, JUNCTION-TO-AMBIENT
vs
AIR FLOW
170
300
190
°
–
J
θ
R
0 cm2
8 cm2
2 cm2
4 cm2
1 cm2
Component/Board System
20-Lead TSSOP
Figure 18
110
90
70
50
0
50
100
150
200
250
130
150
170
300
190
THERMAL RESISTANCE, JUNCTION-TO-AMBIENT
vs
AIR FLOW
0 cm2
4 cm2
2 cm2
8 cm2
1 cm2
°
–
J
θ
R
Component/Board System
20-Lead TSSOP
Includes Thermally Conductive
Compound Between Body and Board
Air Flow – ft/min
Using these figures to determine the system R
θ
JA
allows the maximum power-dissipation P
D(max)
limit to be
calculated with the equation:
PD(max)
TJ(max)
RJA(system)
TA
Where
T
J(max)
is the maximum allowable junction temperature (i.e., 150
°
C absolute maximum or
125
°
C maximum recommended operating temperature for specified operation).
This limit should then be applied to the internal power dissipated by the TPS71025 regulator. The equation for
calculating total internal power dissipation of the device is:
PD(total)
VI
VO
IO
VI
IQ
Because the quiescent current is very low, the second term is negligible, further simplifying the equation to:
PD(total)
VI
VO
IO
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS71025PWR 功能描述:低壓差穩(wěn)壓器 - LDO LDO Reg 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(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
TPS71025PWRG4 功能描述:低壓差穩(wěn)壓器 - LDO LDO Reg 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(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
TPS71025Y 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-DROPOUT VOLTAGE REGULATOR
TPS71202 制造商:TI 制造商全稱:Texas Instruments 功能描述:SYNCHRONOUS SEPIC / FLYBACK CONVERTER WITH 1.1A SWITCH AND INTEGRATED LDO
TPS71202DRCR 功能描述:低壓差穩(wěn)壓器 - LDO Dual 250 mA Output UltraLow Noise 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(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
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