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參數(shù)資料
| 型號： | TPS78533 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | FAST-TRANSIENT RESPONSE 3-A LOW-DROPOUT VOLTAGE REGULATORS |
| 中文描述： | 快速瞬態(tài)響應(yīng)3 -低壓差電壓調(diào)節(jié)器 |
| 文件頁數(shù)： | 19/24頁 |
| 文件大?。?/td> | 450K |
| 代理商： | TPS78533 |
www.ti.com
Output Capacitor
As with most LDO regulators, the TPS758xx requires an output capacitor connected between OUT and GND to
stabilize the internal control loop. The minimum recommended capacitance value is 47 μF with an ESR
(equivalent series resistance) of at least 200 m
. As shown in Figure 29, most capacitor and ESR combinations
with a product of 47e-6 x 0.2 = 9.4e-6 or larger will be stable, provided the capacitor value is at least 47 μF. Solid
tantalum electrolytic and aluminum electrolytic capacitors are all suitable, provided they meet the requirements
described in this section. Larger capacitors provide a wider range of stability and better load transient response.
100
47
10
0.01
1000
0.1
ESR Equivalent Series Resistance
O
μ
Y
= Region of Instability
o
Region of Stability
ESR min x C
o
= Constant
0.2
TPS75801, TPS75815
TPS75818, TPS75825
TPS75833
SLVS330D–JUNE 2001–REVISED MARCH 2004
APPLICATION INFORMATION (continued)
This information along with the ESR graphs, Figure 19, Figure 20, and Figure 29, is included to assist in
selection of suitable capacitance for the user's application. When necessary to achieve low height requirements
along with high output current and/or high load capacitance, several higher ESR capacitors can be used in
parallel to meet these guidelines.
Figure 29. Output Capacitance vs Equivalent Series Resistance
19
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| TPS78601DCQ | 功能描述:低壓差穩(wěn)壓器 - LDO High PSRR Fast RF High-Enable 1.5A 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 |
| TPS78601DCQG4 | 功能描述:低壓差穩(wěn)壓器 - LDO High PSRR Fast RF High-Enable 1.5A 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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| TPS78601DCQRG4 | 功能描述:低壓差穩(wěn)壓器 - LDO High PSRR Fast RF High-Enable 1.5A 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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