參數(shù)資料
型號: S-1323B33NB-N8STFU
元件分類: 固定正電壓單路輸出LDO穩(wěn)壓器
英文描述: 3.3 V FIXED POSITIVE LDO REGULATOR, 0.65 V DROPOUT, PDSO4
封裝: HALOGEN FREE AND LEAD FREE, SC-82AB, 4 PIN
文件頁數(shù): 4/28頁
文件大?。?/td> 322K
代理商: S-1323B33NB-N8STFU
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.
相關PDF資料
PDF描述
S-1323B33PF-N8STFU 3.3 V FIXED POSITIVE LDO REGULATOR, 0.65 V DROPOUT, PDSO4
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S-1701B5042-M5T1U 5 V FIXED POSITIVE LDO REGULATOR, 0.21 V DROPOUT, PDSO5
S-1701B5042-U5T1U 5 V FIXED POSITIVE LDO REGULATOR, 0.21 V DROPOUT, PDSO5
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相關代理商/技術參數(shù)
參數(shù)描述
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S-1323B34PF-N8TTFG 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:HIGH RIPPLE-REJECTION AND SMALL PACKAGE CMOS VOLTAGE REGULATOR
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