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參數(shù)資料
| 型號： | TPS75133QPWPRQ1 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | CB 2C 2#0 PIN RECP WALL |
| 中文描述： | 快速瞬態(tài)響應1.5低壓差電壓調(diào)節(jié)器 |
| 文件頁數(shù)： | 16/27頁 |
| 文件大小： | 398K |
| 代理商： | TPS75133QPWPRQ1 |
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TPS75101-Q1,
’
75115-Q1,
’
75118-Q1,
’
75125-Q1,
’
75133-Q1 WITH POWER GOOD
TPS75301-Q1, TPS75315-Q1, TPS75318-Q1, TPS75325-Q1, TPS75333-Q1 WITH RESET
FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS
SGLS159
–
APRIL 2003
16
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
output capacitor
As with most LDO regulators, the TPS751xxQ and TPS753xxQ require an output capacitor connected between
OUT and GND to stabilize the internal control loop. The minimum recommended capacitance value is 47
μ
F and
the ESR (equivalent series resistance) must be between 100 m
and 10
. Solid tantalum electrolytic, aluminum
electrolytic, and multilayer ceramic 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.
This information, along with the ESR graphs, 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.
ESR and transient response
LDOs typically require an external output capacitor for stability. In fast transient response applications, capacitors
are used to support the load current while LDO amplifier is responding. In most applications, one capacitor is used
to support both functions.
Besides its capacitance, every capacitor also contains parasitic impedances. These parasitic impedances are
resistive as well as inductive. The resistive impedance is called equivalent series resistance (ESR), and the
inductive impedance is called equivalent series inductance (ESL). The equivalent schematic diagram of any
capacitor can therefore be drawn as shown in Figure 21.
R
ESR
L
ESL
C
Figure 21.
–
ESR and ESL
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TPS75201MPWPREP | 功能描述:低壓差穩(wěn)壓器 - LDO Mil Enh Fast Trans Resp Vltg Regs 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 |
| TPS75201QPWP | 功能描述:低壓差穩(wěn)壓器 - LDO Fast-Tran-Resp 2-A 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 |
| TPS75201QPWPG4 | 功能描述:低壓差穩(wěn)壓器 - LDO Fast-Tran-Resp 2-A 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 |
| TPS75201QPWPR | 功能描述:低壓差穩(wěn)壓器 - LDO Fast-Tran-Resp 2-A 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 |
| TPS75201QPWPREP | 功能描述:低壓差穩(wěn)壓器 - LDO Mil Enh Fast Trans Resp Vltg Regs 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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