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参数资料
| 型号： | S-1701B5042-U5T1U |
| 元件分类： | 固定正电压单路输出LDO稳压器 |
| 英文描述： | 5 V FIXED POSITIVE LDO REGULATOR, 0.21 V DROPOUT, PDSO5 |
| 封装： | HALOGEN FREE AND LEAD FREE, SOT-89, 5 PIN |
| 文件页数： | 38/71页 |
| 文件大小： | 582K |
| 代理商： | S-1701B5042-U5T1U |
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HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.3.0_00
S-1701 Series
Seiko Instruments Inc.
43
A
B
VDD
tD
VSS
Minimum operating voltage
Output from VDOUT pin
VIN (VSENSE)
VSS
(1)
(2)
(3)
(5)
(4)
Hysteresis width (VHYS)
Release voltage (
+VDET)
Detection voltage (
VDET)
Remark The above figure shows the case when the SENSE pin is connected to VIN.
Figure 37 Operation
2. Delay circuit
The delay circuit delays the output signal from the time when the SENSE voltage (VSENSE) exceeds the release voltage
(
+VDET) when VSENSE is turned on (refer to point B in Figure 37). The output signal is not delayed when VSENSE goes
below the detection voltage (
VDET) (refer to point A in Figure 37).
The delay time (tD) is a fixed value that is determined by a counter and a built-in clock generator which consists of
constant current and a capacitor.
3. Delay circuit output voltage detection type (S-1701 Series D/E/F/K/L/M/U/V/W types)
If the input voltage or load current changes transiently, an undershoot or overshoot occurs in the output voltage of the
regulator. In the product types in which the output voltage of the regulator is detected by the detector, if the output
voltage is the detection voltage or lower due to the undershoot, the detector operates and a reset signal may be
output. To prevent this, set the value of the input-and-output capacitor of a regulator so that the undershoot is the
minimum value or set a voltage range that allows the difference between the output voltage and detection voltage to be
equal to or greater than the undershoot.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| S-1701B5043-M5T1G | 功能描述:低压差稳压器 - LDO Combo Volt Detct/Reg 85uA Iq 400mA 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-1701B5043-U5T1G | 功能描述:低压差稳压器 - LDO Combo Volt Detec/Reg 85uA Iq 400mA 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-1701C1815-M5T1G | 功能描述:低压差稳压器 - LDO Combo Volt Detct/Reg 85uA Iq 400mA 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-1701C1815-U5T1G | 功能描述:低压差稳压器 - LDO Combo Volt Detec/Reg 85uA Iq 400mA 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-1701C2520-M5T1G | 功能描述:低压差稳压器 - LDO Combo Volt Detct/Reg 85uA Iq 400mA 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 |
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