參數(shù)資料
型號(hào)： S-1170B42UC-OUBTFU
元件分類(lèi)： 固定正電壓?jiǎn)温份敵鯨DO穩(wěn)壓器
英文描述： 4.2 V FIXED POSITIVE LDO REGULATOR, 0.18 V DROPOUT, PDSO5
封裝： HALOGEN FREE AND LEAD FREE, SOT-89, 5 PIN
文件頁(yè)數(shù)： 8/30頁(yè)
文件大?。?/td> 311K
代理商： S-1170B42UC-OUBTFU
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1170 Series
Rev.4.0_00
Seiko Instruments Inc.
16
4. T
hermal shutdown circuit
The S-1170 Series implements a thermal shutdown circuit to protect the device from damage due to
overheating. When the junction temperature rises to 150
°C (typ.), the thermal shutdown circuit operates
and the regulator operation stops.
When the junction temperature drops to 120
°C (typ.), the thermal
shutdown circuit is released and the regulator operation resumes.
If the thermal shutdown circuit starts operating due to self-heating, the regulator operation stops and the
output voltage falls.
When the regulator operation has stopped, no self-heat is generated and the
temperature of the IC is lowered. When the temperature has dropped, the thermal shutdown circuit is
released, the regulator operation resumes, and self-heat is generated again. By repeating this procedure,
the output voltage waveform forms pulses.
This phenomenon, stopping and resuming the regulator
operation, continues until the internal power consumption is reduced by reducing either the input voltage
or output current or both, or the ambient temperature is lowered.
Table 7
Thermal Shutdown Circuit
VOUT Pin Voltage
Operating: 150
°C (typ.)
V
SS level
Released: 120
°C (typ.)
Set value
相關(guān)PDF資料
PDF描述
S-1170B46PD-OUFTFS 4.6 V FIXED POSITIVE LDO REGULATOR, 0.18 V DROPOUT, PDSO6
S-1170B46UC-OUFTFU 4.6 V FIXED POSITIVE LDO REGULATOR, 0.18 V DROPOUT, PDSO5
S-1170B41PD-OUATFG 4.1 V FIXED POSITIVE LDO REGULATOR, 0.18 V DROPOUT, PDSO6
S-1170B41UC-OUATFG 4.1 V FIXED POSITIVE LDO REGULATOR, 0.18 V DROPOUT, PDSO5
S-1170B45PD-OUETFG 4.5 V FIXED POSITIVE LDO REGULATOR, 0.18 V DROPOUT, PDSO6
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S-1170B43PD-OUCTFG 制造商:Seiko Instruments Inc (SII) 功能描述:REG LDO LIN FIX POS 4.3V 0.8A 6PIN HSON(A) - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:IC REG LDO 4.3V 0.8A 6HSON
S-1170B43UC-OUCTFG 功能描述:低壓差穩(wěn)壓器 - LDO Linear LDO Reg Hi 80uA Iq 800mA Iout 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(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
S-1170B44PD-OUDTFG 制造商:Seiko Instruments Inc (SII) 功能描述:REG LDO LIN FIX POS 4.4V 0.8A 6PIN HSON(A) - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:IC REG LDO 4.4V 0.8A 6HSON
S-1170B44UC-OUDTFG 功能描述:低壓差穩(wěn)壓器 - LDO Linear LDO Reg Hi 80uA Iq 800mA Iout 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(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
S-1170B45PD-OUETFG 制造商:Seiko Instruments Inc (SII) 功能描述:REG LDO LIN FIX POS 4.5V 0.8A 6PIN HSON(A) - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:IC REG LDO 4.5V 0.8A 6HSON
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