參數(shù)資料
型號： NCV4275ADS50R4G
廠商： ON SEMICONDUCTOR
元件分類： 固定正電壓單路輸出LDO穩(wěn)壓器
英文描述： 450 mA, 5.0V, LDO w/Reset and Delay
中文描述： 5 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PSSO5
封裝： LEAD FREE, D2PAK-5
文件頁數(shù)： 4/19頁
文件大?。?/td> 164K
代理商： NCV4275ADS50R4G
NCV4275A
http://onsemi.com
12
Thermal Model
A discussion of thermal modeling is in the ON Semiconductor web site: http://www.onsemi.com/pub/collateral/BR1487D.PDF.
Table 1. DPAK 5Lead Thermal RC Network Models
Drain Copper Area (1 oz thick)
168 mm2
736 mm2
168 mm2
736 mm2
(SPICE Deck Format)
Cauer Network
Foster Network
168 mm2
736 mm2
Units
Tau
Units
C_C1
Junction
Gnd
1.00E06
Ws/C
1.36E08
1.361E08
sec
C_C2
node1
Gnd
1.00E05
Ws/C
7.41E07
7.411E07
sec
C_C3
node2
Gnd
6.00E05
Ws/C
1.04E05
1.029E05
sec
C_C4
node3
Gnd
1.00E04
Ws/C
3.91E05
3.737E05
sec
C_C5
node4
Gnd
4.36E04
3.64E04
Ws/C
1.80E03
1.376E03
sec
C_C6
node5
Gnd
6.77E02
1.92E02
Ws/C
3.77E01
2.851E02
sec
C_C7
node6
Gnd
1.51E01
1.27E01
Ws/C
3.79E+00
9.475E01
sec
C_C8
node7
Gnd
4.80E01
1.018
Ws/C
2.65E+01
1.173E+01
sec
C_C9
node8
Gnd
3.740
2.955
Ws/C
8.71E+01
8.59E+01
sec
C_C10
node9
Gnd
10.322
0.438
Ws/C
sec
168 mm2
736 mm2
R’s
R_R1
Junction
node1
0.015
C/W
0.0123
C/W
R_R2
node1
node2
0.08
C/W
0.0585
C/W
R_R3
node2
node3
0.4
C/W
0.0304
0.0287
C/W
R_R4
node3
node4
0.2
C/W
0.3997
0.3772
C/W
R_R5
node4
node5
2.97519
2.6171
C/W
3.115
2.68
C/W
R_R6
node5
node6
8.2971
1.6778
C/W
3.571
1.38
C/W
R_R7
node6
node7
25.9805
7.4246
C/W
12.851
5.92
C/W
R_R8
node7
node8
46.5192
14.9320
C/W
35.471
7.39
C/W
R_R9
node8
node9
17.7808
19.2560
C/W
46.741
28.94
C/W
R_R10
node9
Gnd
0.1758
C/W
NOTE: Bold face items represent the package without the external thermal system.
Junction
R1
C1
C2
R2
C3
R3
Cn
Rn
Time constants are not simple RC products. Amplitudes
of mathematical solution are not the resistance values.
Ambient
(thermal ground)
Figure 26. Grounded Capacitor Thermal Network (“Cauer” Ladder)
Junction
R1
C1
C2
R2
C3
R3
Cn
Rn
Each rung is exactly characterized by its RCproduct
time constant; amplitudes are the resistances.
Ambient
(thermal ground)
Figure 27. NonGrounded Capacitor Thermal Ladder (“Foster” Ladder)
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NCV4275ADT33RKG 功能描述:低壓差穩(wěn)壓器 - LDO 450mA LDO 3.3V 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
NCV4275ADT50RKG 功能描述:低壓差穩(wěn)壓器 - LDO 450 mA LDO 5V 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
NCV4275ADT50RKG/H 制造商:ON Semiconductor 功能描述:
NCV4275DS 功能描述:低壓差穩(wěn)壓器 - LDO 5V 450mA 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
NCV4275DSG 功能描述:低壓差穩(wěn)壓器 - LDO 5V 450mA 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
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