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参数资料
| 型号： | S-1170B45UC-OUETFG |
| 元件分类： | 固定正电压单路输出LDO稳压器 |
| 英文描述： | 4.5 V FIXED POSITIVE LDO REGULATOR, 0.18 V DROPOUT, PDSO5 |
| 封装： | LEAD FREE, SOT-89, 5 PIN |
| 文件页数： | 8/30页 |
| 文件大小： | 311K |
| 代理商： | S-1170B45UC-OUETFG |
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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.
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
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| S-1172B27-U5T1U | 2.7 V FIXED POSITIVE LDO REGULATOR, 0.1 V DROPOUT, PDSO5 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| S-1170B46PD-OUFTFG | 制造商:Seiko Instruments Inc (SII) 功能描述:REG LDO LIN FIX POS 4.6V 0.8A 6PIN HSON(A) - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:IC REG LDO 4.6V 0.8A 6HSON |
| S-1170B46UC-OUFTFG | 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-1170B47PD-OUGTFG | 制造商:Seiko Instruments Inc (SII) 功能描述:REG LDO LIN FIX POS 4.7V 0.8A 6PIN HSON(A) - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:IC REG LDO 4.7V 0.8A 6HSON |
| S-1170B47UC-OUGTFG | 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-1170B48PD-OUHTFG | 制造商:Seiko Instruments Inc (SII) 功能描述:REG LDO LIN FIX POS 4.8V 0.8A 6PIN HSON(A) - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:IC REG LDO 4.8V 0.8A 6HSON |
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