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参数资料
| 型号： | S-1121B28MC-N2NTFU |
| 元件分类： | 固定正电压单路输出LDO稳压器 |
| 英文描述： | 2.8 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PDSO5 |
| 封装： | HALOGEN AND LEAD FREE, SOT-23, 5 PIN |
| 文件页数： | 1/25页 |
| 文件大小： | 265K |
| 代理商： | S-1121B28MC-N2NTFU |
S-1111/1121 Series
www.sii-ic.com
HIGH RIPPLE-REJECTION LOW DROPOUT
CMOS VOLTAGE REGULATOR
Seiko Instruments Inc., 2002-2010
Rev.5.0_00
Seiko Instruments Inc.
1
The S-1111/1121 Series is a positive voltage regulator with a low dropout voltage, high output voltage
accuracy, and low current consumption developed based on CMOS technology.
A built-in low on-resistance transistor provides a low dropout voltage and large output current, and a built-
in overcurrent protector prevents the load current from exceeding the current capacitance of the output
transistor. An ON/OFF circuit ensures a long battery life, and a small SOT-23-5 package realize high-
density mounting. The lineup includes the S-1111 and S-1121 Series, which differ in pin configuration.
Features
Output voltage:
1.5 V to 5.5 V, selectable in 0.1 V steps.
High-accuracy output voltage: ±1.0%
Low dropout voltage:
200 mV typ. (3.0 V output product, IOUT = 100 mA)
Low current consumption:
During operation: 35
μA typ., 65 μA max.
During shutdown: 0.1
μA typ., 1.0 μA max.
High peak current capability:
150 mA output is possible (at VIN ≥ VOUT(S) + 1.0 V)
*1
Built-in ON/OFF circuit:
Ensures long battery life.
High ripple rejection:
70 dB typ. (at 1.0 kHz)
Built-in overcurrent protector: Overcurrent of output transistor can be restricted.
Lead-free, Sn 100%, halogen-free*2
*1. Attention should be paid to the power dissipation of the package when the output current is large.
*2. Refer to “
Product Name Structure” for details.
Applications
Power supply for battery-powered devices
Power supply for personal communication devices
Power supply for home electric/electronic appliances
Power supply for cellular phones
Package
SOT-23-5
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| S-1121B25MC-N2KTFU | 2.5 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO5 |
| S-1121B24MC-N2JTFU | 2.4 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PDSO5 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| S-1121B28PN-N2N-TF | 功能描述:低压差稳压器 - LDO 2.8 Volt 1% 0.2mV 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-1121B28PN-N2NTFG | 功能描述:低压差稳压器 - LDO 2.8 Volt 1% 0.2mV 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-1121B29MC-N2O-TF | 功能描述:低压差稳压器 - LDO 2.9 Volt 1% 0.2mV 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-1121B29MC-N2OTFG | 功能描述:低压差稳压器 - LDO 2.9 Volt 1% 0.2mV 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-1121B29PN-N2O-TF | 功能描述:低压差稳压器 - LDO 2.9 Volt 1% 0.2mV 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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