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| 型号： | S-1312B17-A4T1U3 |
| 元件分类： | 固定正电压单路输出LDO稳压器 |
| 英文描述： | FIXED POSITIVE LDO REGULATOR, PDSO4 |
| 封装： | HALOGEN FREE AND LEAD FREE, HSNT-4 |
| 文件页数： | 11/41页 |
| 文件大小： | 523K |
| 代理商： | S-1312B17-A4T1U3 |
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LOW CURRENT CONSUMPTION HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.1.1_00
S-1312 Series
Seiko Instruments Inc.
19
3. ON / OFF pin
This pin starts and stops the regulator.
When the ON / OFF pin is set to the power-off level, the entire internal circuit stops operating, and the built-in P-
channel MOS FET output transistor between the VIN and VOUT pins is turned off, reducing current consumption
significantly.
Note that the current consumption increases when a voltage of 0.25 V to VIN
0.3 V is applied to the ON / OFF pin.
The ON / OFF pin is configured as shown in Figures 17 and 18.
3. 1 S-1312 Series A / C types
The ON / OFF pin is internally pulled down to VSS in the floating status, so the VOUT pin is set to the VSS level. For
the ON / OFF pin current, refer to the A / C type of ON / OFF pin input current “H” in “ Electrical Characteristics”.
3. 2 S-1312 Series B / D types
Do not use the ON / OFF pin in the floating state because this pin is internally not pulled up or pulled down. When
not using the ON / OFF pin, connect the pin to the VIN pin.
Table 11
Logic Type
ON / OFF Pin
Internal Circuits
VOUT Pin Voltage
Current Consumption
A / B / C / D
“H” : Power-on
Operate
Set value
ISS1
*1
A / B / C / D
“L” : Power-off
Stop
VSS level
ISS2
*1. Note that the IC’s current consumption increases as much as current flows into the pull-down resistor when
the ON / OFF pin is connected to VIN and the S-1312 Series A/C types is operating (refer to Figure 17)
VSS
VIN
ON / OFF
VSS
VIN
ON / OFF
Figure 17 S-1312 Series A / C types
Figure 18 S-1312 Series B / D types
相关PDF资料 |
PDF描述 |
|---|---|
| S-1312B17-M5T1U3 | FIXED POSITIVE LDO REGULATOR, PDSO5 |
| S-1312B22-A4T1U3 | FIXED POSITIVE LDO REGULATOR, PDSO4 |
| S-1312B22-M5T1U3 | FIXED POSITIVE LDO REGULATOR, PDSO5 |
| S-1312B23-A4T1U3 | FIXED POSITIVE LDO REGULATOR, PDSO4 |
| S-1312B23-M5T1U3 | FIXED POSITIVE LDO REGULATOR, PDSO5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| S-1312B18-A4T1U3 | 功能描述:IC REG LINEAR 150MA HSNT4-A 制造商:ablic u.s.a. inc. 系列:* 包装:剪切带（CT） 零件状态:在售 安装类型:表面贴装 封装/外壳:4-SMD，扁平引线裸焊盘 供应商器件封装:HSNT-4-A 标准包装:1 |
| S-1312B18-A4T2U3 | 功能描述:IC REG LINEAR 150MA HSNT4-B 制造商:ablic u.s.a. inc. 系列:* 包装:剪切带（CT） 零件状态:在售 安装类型:表面贴装 封装/外壳:4-SMD，扁平引线裸焊盘 供应商器件封装:HSNT-4-A 标准包装:1 |
| S-1312B19-M5T1U3 | 制造商:Seiko Instruments Inc (SII) 功能描述:150MA VOLT REG ULTRA LOW IQ |
| S-1312B1J-A4T1U3 | 制造商:Seiko Instruments Inc (SII) 功能描述:150MA VOLT REG ULTRA LOW IQ |
| S-1312B1J-M5T1U3 | 制造商:Seiko Instruments Inc (SII) 功能描述:150MA VOLT REG ULTRA LOW IQ |
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