參數(shù)資料
型號(hào)： S-1121B53MC-N3M-TFG
元件分類(lèi)： 固定正電壓?jiǎn)温份敵鯨DO穩(wěn)壓器
英文描述： 5.3 V FIXED POSITIVE LDO REGULATOR, 0.26 V DROPOUT, PDSO5
封裝： LEAD FREE, SOT-23, 5 PIN
文件頁(yè)數(shù)： 6/25頁(yè)
文件大小： 265K
代理商： S-1121B53MC-N3M-TFG
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1111/1121 Series
Rev.5.0_00
Seiko Instruments Inc.
14
Operation
1. Basic operation
Figure 11 shows the block diagram of the S-1111/1121 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-1111/1121 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
S-1121B30MC-N2P-TFG 3 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PDSO5
S-1121B35MC-N2U-TFG 3.5 V FIXED POSITIVE LDO REGULATOR, 0.26 V DROPOUT, PDSO5
S-1121B44MC-N3D-TFG 4.4 V FIXED POSITIVE LDO REGULATOR, 0.26 V DROPOUT, PDSO5
S-1121B21MC-N2G-TFG 2.1 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PDSO5
S-1121B26MC-N2L-TFG 2.6 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO5
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S-1121B54MC-N3NTFG 制造商:Seiko Instruments Inc (SII) 功能描述:LDO Voltage Regulators LINEAR LDO REG HI 50UA IQ 150MA IOUT
S-1121B55MC-N3OTFG 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(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(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
S1-12-1CE 制造商:OENINDIA 制造商全稱(chēng):OEN India Limited 功能描述:MINI AUTOMOTIVE RELAY
S1-12-1CNIL 制造商:OENINDIA 制造商全稱(chēng):OEN India Limited 功能描述:MINI AUTOMOTIVE RELAY
S-1121-SP 制造商:Molex 功能描述:
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