參數(shù)資料
型號(hào): S-1121B32MC-N2R-TFG
元件分類: 固定正電壓?jiǎn)温份敵鯨DO穩(wěn)壓器
英文描述: 3.2 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PDSO5
封裝: LEAD FREE, SOT-23, 5 PIN
文件頁(yè)數(shù): 6/25頁(yè)
文件大?。?/td> 265K
代理商: S-1121B32MC-N2R-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-1121B41MC-N3A-TFG 4.1 V FIXED POSITIVE LDO REGULATOR, 0.26 V DROPOUT, PDSO5
S-1121B37MC-N2W-TFG 3.7 V FIXED POSITIVE LDO REGULATOR, 0.26 V DROPOUT, PDSO5
S-1121B46MC-N3F-TFG 4.6 V FIXED POSITIVE LDO REGULATOR, 0.26 V DROPOUT, PDSO5
S-1121B23MC-N2I-TFG 2.3 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PDSO5
S-1121B28MC-N2N-TFG 2.8 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PDSO5
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S-1121B33MC-N2S-TF 功能描述:低壓差穩(wěn)壓器 - LDO 3.3 Volt 1% 0.2mV 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: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
S-1121B33MC-N2STFG 功能描述:低壓差穩(wěn)壓器 - LDO 3.3 Volt 1% 0.2mV 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: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
S-1121B33PN-N2S-TF 功能描述:低壓差穩(wěn)壓器 - LDO 3.3 Volt 1% 0.2mV 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: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
S-1121B33PN-N2STFG 功能描述:低壓差穩(wěn)壓器 - LDO 3.3 Volt 1% 0.2mV 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: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
S-1121B34MC-N2TTFG 制造商:Seiko Instruments Inc (SII) 功能描述:LDO Voltage Regulators LINEAR LDO REG HI 50UA IQ 150MA IOUT