产品概述
描述
The LD3985 provides up to 150 mA, from 2.5 V to 6 V input voltage. The ultra low drop voltage, low quiescent current and low noise make it suitable for low power applications and in battery-powered systems. Regulator ground current increases slightly in dropout only, prolonging the battery life. Power supply rejection is better than 60 dB at low frequencies and rolls off at 10 kHz. High power supply rejection is maintained down to low input voltage levels common to battery operated circuits. Shutdown logic control function is available, this means that when the device is used as local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. The LD3985 is designed to work with low ESR ceramic capacitors. Typical applications are in mobile phones and similar battery-powered wireless systems.
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所有功能
- Input voltage from 2.5 to 6 V
- Stable with low ESR ceramic capacitors
- Ultra low-dropout voltage (60 mV typ. at 150 mA load, 0.4 mV typ. at1 mA load)
- Very low quiescent current (85 μA typ. at no load, 170 μA typ. at 150 mA load; max.1.5 μA in OFF mode)
- Guaranteed output current up to 150 mA
- Wide range of output voltages: 1.22 V; 1.8 V; 2.5 V; 2.7 V; 2.8 V;2.9 V; 3.3 V; 4.7 V
- Fast turn-on time: typ. 200 μs [CO = 1 μF, CBYP = 10 nF and IO = 1 mA]
- Logic-controlled electronic shutdown
- Internal current and thermal limit
- Output low noise voltage 30 μVRMS over 10 Hz to 100 kHz
- SVR of 60 dB at 1 kHz, 50 dB at 10 kHz
- Temperature range: -40 °C to 125 °C
特别推荐
EDA符号、封装和3D模型
意法半导体 - LD3985
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符号
封装
3D模型
质量与可靠性
| 产品型号 | Marketing Status | 包 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| LD3985M122R | 批量生产 | SOT23-5L | 工业 | Ecopack2 | |
| LD3985M18R | 批量生产 | SOT23-5L | 工业 | Ecopack2 | |
| LD3985M25R | 批量生产 | SOT23-5L | 工业 | Ecopack2 | |
| LD3985M27R | 批量生产 | SOT23-5L | 工业 | Ecopack2 | |
| LD3985M28R | 批量生产 | SOT23-5L | 工业 | Ecopack2 | |
| LD3985M29R | 批量生产 | SOT23-5L | 工业 | Ecopack2 | |
| LD3985M30R | 批量生产 | SOT23-5L | 工业 | Ecopack2 | |
| LD3985M33R | 批量生产 | SOT23-5L | 工业 | Ecopack3 | |
| LD3985M47R | 批量生产 | SOT23-5L | 工业 | Ecopack2 | |
LD3985M122R
Package:
SOT23-5LMaterial Declaration**:
LD3985M27R
Package:
SOT23-5LMaterial Declaration**:
LD3985M28R
Package:
SOT23-5LMaterial Declaration**:
LD3985M47R
Package:
SOT23-5LMaterial Declaration**:
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持。
样片和购买
| 产品型号 | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | 包 | 包装类型 | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | 等级规格 | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | ||
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| LD3985M47R | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
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| LD3985M25R | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
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| LD3985M33R | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
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| LD3985M122R | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
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| LD3985M18R | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
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| LD3985M30R | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
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| LD3985M27R | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
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| LD3985M29R | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
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| LD3985M28R | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
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LD3985M47R 批量生产
LD3985M25R 批量生产
LD3985M33R 批量生产
LD3985M122R 批量生产
LD3985M18R 批量生产
LD3985M30R 批量生产
LD3985M27R 批量生产
LD3985M29R 批量生产
LD3985M28R 批量生产