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參數(shù)資料
| 型號： | S-T111B51MC-OHKTFU |
| 元件分類： | 固定正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | 5.1 V FIXED POSITIVE LDO REGULATOR, 0.26 V DROPOUT, PDSO5 |
| 封裝： | HALOGEN FREE AND LEAD FREE, SOT-23, 5 PIN |
| 文件頁數(shù)： | 3/23頁 |
| 文件大?。?/td> | 225K |
| 代理商： | S-T111B51MC-OHKTFU |
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.3.0_00
S-T111 Series
Seiko Instruments Inc.
11
Operation
1. Basic operation
Figure 11 shows the block diagram of the S-T111 Series.
The error amplifier compares the reference voltage (Vref) with Vfb, which is the output voltage resistance-
divided by feedback resistors Rs and Rf. It supplies the output transistor with the gate voltage necessary
to ensure a certain output voltage free of any fluctuations of input voltage and temperature.
Reference voltage
circuit
VOUT
*1
*1.
Parasitic diode
VSS
VIN
Rs
Rf
Error
amplifier
Current
supply
Vref
+
Vfb
Figure
11
2. Output transistor
The S-T111 Series uses a low on-resistance P-channel MOS FET as the output transistor.
Be sure that VOUT does not exceed VIN + 0.3 V to prevent the voltage regulator from being damaged due
to inverse current flowing from the VOUT pin through a parasitic diode to the VIN pin.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S-T111B52MC-OHLTFG | 功能描述:低壓差穩(wěn)壓器 - LDO Linear LDO Reg Hi 50uA Iq 150mA Iout 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 |
| S-T111B53MC-OHMTFG | 功能描述:低壓差穩(wěn)壓器 - LDO Linear LDO Reg Hi 50uA Iq 150mA Iout 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 |
| S-T111B54MC-OHNTFG | 功能描述:低壓差穩(wěn)壓器 - LDO Linear LDO Reg Hi 50uA Iq 150mA Iout 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 |
| S-T111B55MC-OHOTFG | 功能描述:低壓差穩(wěn)壓器 - LDO Linear LDO Reg Hi 50uA Iq 150mA Iout 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 |
| ST1120C12K0LPBF | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Phase Control Thyristors (Hockey PUK Version), 1650 A |
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