- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄297330 > S-1121B31MC-N2Q-TFG 3.1 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PDSO5 PDF資料下載
參數(shù)資料
| 型號： | S-1121B31MC-N2Q-TFG |
| 元件分類： | 固定正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | 3.1 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PDSO5 |
| 封裝： | LEAD FREE, SOT-23, 5 PIN |
| 文件頁數(shù)： | 6/25頁 |
| 文件大?。?/td> | 265K |
| 代理商： | S-1121B31MC-N2Q-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-1121B45MC-N3E-TFG | 4.5 V FIXED POSITIVE LDO REGULATOR, 0.26 V DROPOUT, PDSO5 |
| S-1121B22MC-N2H-TFG | 2.2 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PDSO5 |
| S-1121B27MC-N2M-TFG | 2.7 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO5 |
| S-1121B18MC-N2D-TFG | 1.8 V FIXED POSITIVE LDO REGULATOR, 1.4 V DROPOUT, PDSO5 |
| S-1121B52MC-N3L-TFG | 5.2 V FIXED POSITIVE LDO REGULATOR, 0.26 V DROPOUT, PDSO5 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S-1121B31PN-N2Q-TF | 功能描述:低壓差穩(wěn)壓器 - LDO 3.1 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| S-1121B31PN-N2QTFG | 功能描述:低壓差穩(wěn)壓器 - LDO 3.1 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| S-1121B32MC-N2RTFG | 制造商:Seiko Instruments Inc (SII) 功能描述:LINEAR LDO REG HI 50UA IQ 150MA IOUT |
| 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(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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。