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参数资料
| 型号： | S-1323B31NB-N8Q-TFG |
| 元件分类： | 固定正电压单路输出LDO稳压器 |
| 英文描述： | 3.1 V FIXED POSITIVE LDO REGULATOR, 0.65 V DROPOUT, PDSO4 |
| 封装： | LEAD FREE, SC-82AB, 4 PIN |
| 文件页数： | 4/28页 |
| 文件大小： | 322K |
| 代理商： | S-1323B31NB-N8Q-TFG |
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HIGH RIPPLE-REJECTION AND SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-1323 Series
Rev.5.0_00
12
Seiko Instruments Inc.
Operation
1. Basic operation
Figure 12 shows the block diagram of the S-1323 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-1323 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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PDF描述 |
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| S-1323B29NB-N8O-TFG | 2.9 V FIXED POSITIVE LDO REGULATOR, 0.65 V DROPOUT, PDSO4 |
| S-1323B51NB-N9K-TFG | 5.1 V FIXED POSITIVE LDO REGULATOR, 0.65 V DROPOUT, PDSO4 |
| S-1323B51PF-N9KTFGG | 5.1 V FIXED POSITIVE LDO REGULATOR, 0.65 V DROPOUT, PDSO4 |
| S-1323B48PF-N9HTFGG | 4.8 V FIXED POSITIVE LDO REGULATOR, 0.65 V DROPOUT, PDSO4 |
| S-1323B31PF-N8QTFGG | 3.1 V FIXED POSITIVE LDO REGULATOR, 0.65 V DROPOUT, PDSO4 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| S-1323B31PF-N8QTFG | 制造商:SII 制造商全称:Seiko Instruments Inc 功能描述:HIGH RIPPLE-REJECTION AND SMALL PACKAGE CMOS VOLTAGE REGULATOR |
| S-1323B32NB-N8RTFG | 功能描述:低压差稳压器 - LDO Linear LDO Reg Hi 70uA Iq 150mA Iout RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| S-1323B32PF-N8RTFG | 制造商:Seiko Instruments Inc (SII) 功能描述:LINEAR LDO REG HI 70UA IQ 150MA IOUT |
| S-1323B33NB-N8S-TF | 功能描述:低压差稳压器 - LDO 3.3 V 1% 70uV RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| S-1323B33NB-N8STFG | 功能描述:低压差稳压器 - LDO Linear LDO Reg Hi 70uA Iq 150mA Iout RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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