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參數(shù)資料
| 型號： | S-1170B46UC-OUFTFU |
| 元件分類： | 固定正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | 4.6 V FIXED POSITIVE LDO REGULATOR, 0.18 V DROPOUT, PDSO5 |
| 封裝： | HALOGEN FREE AND LEAD FREE, SOT-89, 5 PIN |
| 文件頁數(shù)： | 6/30頁 |
| 文件大?。?/td> | 311K |
| 代理商： | S-1170B46UC-OUFTFU |
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HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1170 Series
Rev.4.0_00
Seiko Instruments Inc.
14
Operation
1. Basic operation
Figure 12 shows the block diagram of the S-1170 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 12
2. Output transistor
The S-1170 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.
相關(guān)PDF資料 |
PDF描述 |
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| S-1170B41PD-OUATFG | 4.1 V FIXED POSITIVE LDO REGULATOR, 0.18 V DROPOUT, PDSO6 |
| S-1170B41UC-OUATFG | 4.1 V FIXED POSITIVE LDO REGULATOR, 0.18 V DROPOUT, PDSO5 |
| S-1170B45PD-OUETFG | 4.5 V FIXED POSITIVE LDO REGULATOR, 0.18 V DROPOUT, PDSO6 |
| S-1170B45UC-OUETFG | 4.5 V FIXED POSITIVE LDO REGULATOR, 0.18 V DROPOUT, PDSO5 |
| S-1172B20-E6T1U | 2 V FIXED POSITIVE LDO REGULATOR, 0.15 V DROPOUT, PDSO6 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S-1170B47PD-OUGTFG | 制造商:Seiko Instruments Inc (SII) 功能描述:REG LDO LIN FIX POS 4.7V 0.8A 6PIN HSON(A) - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:IC REG LDO 4.7V 0.8A 6HSON |
| S-1170B47UC-OUGTFG | 功能描述:低壓差穩(wěn)壓器 - LDO Linear LDO Reg Hi 80uA Iq 800mA 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(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 |
| S-1170B48PD-OUHTFG | 制造商:Seiko Instruments Inc (SII) 功能描述:REG LDO LIN FIX POS 4.8V 0.8A 6PIN HSON(A) - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:IC REG LDO 4.8V 0.8A 6HSON |
| S-1170B48UC-OUHTFG | 功能描述:低壓差穩(wěn)壓器 - LDO Linear LDO Reg Hi 80uA Iq 800mA 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(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 |
| S-1170B49PD-OUITFG | 制造商:Seiko Instruments Inc (SII) 功能描述:REG LDO LIN FIX POS 4.9V 0.8A 6PIN HSON(A) - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:IC REG LDO 4.9V 0.8A 6HSON |
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