參數(shù)資料
型號: TPS7333Q
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 REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION
中文描述: 低技術(shù),集成延遲復(fù)位功能降穩(wěn)壓器
文件頁數(shù): 34/43頁
文件大?。?/td> 638K
代理商: TPS7333Q
TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124F – JUNE 1995 – REVISED JANUARY 1999
34
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
THERMAL INFORMATION
Comparing P
D(total)
with P
D(max)
reveals that the power dissipation in this example does not exceed the maximum
limit. When it does, one of two corrective actions can be taken. The power-dissipation limit can be raised by increasing
either the airflow or the heat-sink area. Alternatively, the internal power dissipation of the regulator can be lowered
by reducing either the input voltage or the load current. In either case, the above calculations should be repeated with
the new system parameters.
Copper Heat Sink
1 oz Cu
Figure 44. Thermally Enhanced PWB Layout (not to scale) for the 20-Pin TSSOP
Figure 45
110
90
70
50
0
50
100
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
Air Flow – ft/min
Figure 46
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
相關(guān)PDF資料
PDF描述
TPS7348Q LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION
TPS7333Y LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION
TPS7325Y LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION
TPS7348Y LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED DELAYED RESET FUNCTION
TPS736XX_08 Cap-Free, NMOS, 400mA Low-Dropout Regulator with Reverse Current Protection
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TPS7333QD 功能描述:低壓差穩(wěn)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(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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TPS7333QD 制造商:Texas Instruments 功能描述:IC's
TPS7333QDG4 功能描述:低壓差穩(wěn)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(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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