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参数资料
| 型号： | S-1170B52UC-OULTFU |
| 元件分类： | 固定正电压单路输出LDO稳压器 |
| 英文描述： | 5.2 V FIXED POSITIVE LDO REGULATOR, 0.18 V DROPOUT, PDSO5 |
| 封装： | HALOGEN FREE AND LEAD FREE, SOT-89, 5 PIN |
| 文件页数： | 6/30页 |
| 文件大小： | 311K |
| 代理商： | S-1170B52UC-OULTFU |
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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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| S-1170B53PD-OUMTFG | 制造商:Seiko Instruments Inc (SII) 功能描述:REG LDO LIN FIX POS 5.3V 0.8A 6PIN HSON(A) - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:IC REG LDO 5.3V 0.8A 6HSON |
| S-1170B53UC-OUMTFG | 功能描述:低压差稳压器 - LDO Linear LDO Reg Hi 80uA Iq 800mA 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-1170B54PD-OUNTFG | 制造商:Seiko Instruments Inc (SII) 功能描述:REG LDO LIN FIX POS 5.4V 0.8A 6PIN HSON(A) - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:IC REG LDO 5.4V 0.8A 6HSON |
| S-1170B54UC-OUNTFG | 功能描述:低压差稳压器 - LDO Linear LDO Reg Hi 80uA Iq 800mA 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-1170B55PD-OUOTFG | 制造商:Seiko Instruments Inc (SII) 功能描述:REG LDO LIN FIX POS 5.5V 0.8A 6PIN HSON(A) - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:IC REG LDO 5.5V 0.8A 6HSON |
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