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參數(shù)資料
| 型號： | S-1131B20UC-N4F-TFG |
| 元件分類： | 固定正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | 2 V FIXED POSITIVE LDO REGULATOR, 0.6 V DROPOUT, PDSO5 |
| 封裝： | LEAD FREE, SOT-89, 5 PIN |
| 文件頁數(shù)： | 5/30頁 |
| 文件大?。?/td> | 407K |
| 代理商： | S-1131B20UC-N4F-TFG |
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HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.0_00
S-1131 Series
Seiko Instruments Inc.
13
Operation
1. Basic operation
Figure 13 shows the block diagram of the S-1131 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 13
2. Output transistor
The S-1131 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 VOUT pin through a parasitic diode to VIN pin.
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| S-1131B48UC-N5H-TFG | 4.8 V FIXED POSITIVE LDO REGULATOR, 0.28 V DROPOUT, PDSO5 |
| S-1131B39UC-N4Y-TFG | 3.9 V FIXED POSITIVE LDO REGULATOR, 0.28 V DROPOUT, PDSO5 |
| S-1131B52UC-N5L-TFG | 5.2 V FIXED POSITIVE LDO REGULATOR, 0.28 V DROPOUT, PDSO5 |
| S-1131B18UC-N4D-TFG | 1.8 V FIXED POSITIVE LDO REGULATOR, 0.75 V DROPOUT, PDSO5 |
| S-1132B15-I6T2U | 1.5 V FIXED POSITIVE LDO REGULATOR, 0.58 V DROPOUT, PDSO6 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| S-1131B21PD-N4GTFG | 制造商:Seiko Instruments Inc (SII) 功能描述:REG LDO LIN FIX POS 2.1V 0.3A 6PIN HSON(A) - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:IC REG LDO 2.1V 0.3A 6HSON |
| S-1131B21UA-N4GTFG | 功能描述:低壓差穩(wěn)壓器 - LDO Linear LDO Reg Hi 35uA Iq 300mA 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-1131B21UC-N4GTFG | 功能描述:低壓差穩(wěn)壓器 - LDO Linear LDO Reg Hi 35uA Iq 300mA 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-1131B22PD-N4HTFG | 制造商:Seiko Instruments Inc (SII) 功能描述:REG LDO LIN FIX POS 2.2V 0.3A 6PIN HSON(A) - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:IC REG LDO 2.2V 0.3A 6HSON |
| S-1131B22UA-N4HTFG | 功能描述:低壓差穩(wěn)壓器 - LDO Linear LDO Reg Hi 35uA Iq 300mA 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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