參數(shù)資料
型號(hào): S-1132B26-U5T1U
元件分類: 固定正電壓單路輸出LDO穩(wěn)壓器
英文描述: 2.6 V FIXED POSITIVE LDO REGULATOR, 0.21 V DROPOUT, PDSO5
封裝: HALOGEN FREE AND LEAD FREE, SOT-89, 5 PIN
文件頁數(shù): 5/35頁
文件大?。?/td> 414K
代理商: S-1132B26-U5T1U
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.4.0_00
S-1132 Series
Seiko Instruments Inc.
13
Operation
1. Basic operation
Figure 13 shows the block diagram of the S-1132 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.
VOUT
*1
*1. Parasitic diode
VSS
VIN
Rs
Rf
Error
amplifier
Current
supply
Vref
+
Vfb
Reference
voltage circuit
Figure 13
2. Output transistor
The S-1132 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 the VOUT pin through a parasitic diode to the VIN pin.
相關(guān)PDF資料
PDF描述
S-1132B35-I6T2U 3.5 V FIXED POSITIVE LDO REGULATOR, 0.15 V DROPOUT, PDSO6
S-1132B35-M5T1U 3.5 V FIXED POSITIVE LDO REGULATOR, 0.15 V DROPOUT, PDSO5
S-1132B35-U5T1U 3.5 V FIXED POSITIVE LDO REGULATOR, 0.15 V DROPOUT, PDSO5
S-1132B47-I6T2U 4.7 V FIXED POSITIVE LDO REGULATOR, 0.15 V DROPOUT, PDSO6
S-1132B47-M5T1U 4.7 V FIXED POSITIVE LDO REGULATOR, 0.15 V DROPOUT, PDSO5
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