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参数资料
| 型号： | S-818A53AUC-BHH-T2 |
| 元件分类： | 固定正电压单路输出LDO稳压器 |
| 英文描述： | 5.3 V FIXED POSITIVE LDO REGULATOR, 0.21 V DROPOUT, PDSO6 |
| 封装： | SOT-89, 5 PIN |
| 文件页数： | 4/31页 |
| 文件大小： | 716K |
| 代理商： | S-818A53AUC-BHH-T2 |
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LOW DROPOUT CMOS VOLTAGE REGULATOR
S-818 Series
Rev.1.4_00
Seiko Instruments Inc.
12
3. ON/OFF pin (Shutdown pin)
This pin activates and inactivates the regulator.
When the ON/OFF pin is switched to the shutdown level, the operation of all internal circuit stops, the
built-in Pch MOS FET output transistor between VIN and VOUT pin is switched off, suppressing current
consumption. The VOUT pin goes to the Vss level due to internal divided resistance of several M
between VOUT pin and VSS pin.
The structure of the ON/OFF pin is shown in Figure 12. Since the ON/OFF pin is neither pulled down nor
pulled up internally, do not keep it in the floating state. Current consumption increases if a voltage of
0.3 V to VIN
0.3 V is applied to the ON/OFF pin. When the shutdown pin is not used, connect it to the VIN
pin for product type "A" and to the VSS pin for product type "B".
Table 6 ON/OFF pin function by product type
Product type
ON/OFF pin
Internal circuit
VOUT pin voltage
Current consumption
A
“H”: Power on
Operating
Set value
Iss1
A
“L”: Shutdown
Stop
VSS level
Iss2
B
“H”: Shutdown
Stop
VSS level
Iss2
B
“L”: Power on
Operating
Set value
Iss1
ON/OFF
VIN
VSS
Figure 12 The structure of the ON/OFF Pin
Selection of Output Capacitor (CL)
The S-818 Series needs an output capacitor between VOUT pin and VSS pin for phase compensation. A
small ceramic or an OS electrolyte capacitor of 2
F or more can be used. When a tantalum or an
aluminum electrolyte capacitor is used, the capacitance must be 2
F or more and the ESR must be 10
or less.
Attention should be paid not to cause an oscillation due to increase of ESR at low temperatures when an
aluminum electrolyte capacitor is used.
Evaluate the performance including temperature characteristics before prototyping the circuit.
Overshoot and undershoot characteristics differ depending upon the type of the output capacitor. Refer
to the “CL dependence” data in “ Transient Response Characteristics”.
相关PDF资料 |
PDF描述 |
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| S-818A54AMC-BHI-T2 | 5.4 V FIXED POSITIVE LDO REGULATOR, 0.21 V DROPOUT, PDSO5 |
| S-818A55AMC-BHJ-T2 | 5.5 V FIXED POSITIVE LDO REGULATOR, 0.2 V DROPOUT, PDSO5 |
| S-818A55AUC-BHJ-T2 | 5.5 V FIXED POSITIVE LDO REGULATOR, 0.2 V DROPOUT, PDSO6 |
| S-818A56AMC-BHK-T2 | 5.6 V FIXED POSITIVE LDO REGULATOR, 0.2 V DROPOUT, PDSO5 |
| S-818A57AMC-BHL-T2 | 5.7 V FIXED POSITIVE LDO REGULATOR, 0.2 V DROPOUT, PDSO5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| S-818A53AUC-BHHT2G | 功能描述:低压差稳压器 - LDO Linear LDO Regulator 30uA Iq 300mA 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-818A54AMC-BHIT2G | 功能描述:低压差稳压器 - LDO Linear LDO regulator 30uA Iq 300mA 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-818A54AUC-BHIT2G | 功能描述:低压差稳压器 - LDO Linear LDO Regulator 30uA Iq 300mA 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-818A55AMC-BHJT2G | 功能描述:低压差稳压器 - LDO Linear LDO regulator 30uA Iq 300mA 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-818A55AUC-BHJT2G | 功能描述:低压差稳压器 - LDO Linear LDO Regulator 30uA Iq 300mA 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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