产品概述
描述
The LD49100 provides 1 A maximum current with an input voltage range from 1.5 V to 5.5 V and a typical dropout voltage of 200 mV. The device is stable with ceramic capacitors on the input and output.
The ultra low-dropout voltage, low quiescent current and low-noise features make it suitable for a wide range of automotive applications. Power supply rejection is 70 dB at low frequency and starts to roll off at 10 kHz. Enable logic control function puts the LD49100 in shutdown mode, allowing a total current consumption lower than 1 μA.
The device features a precise Power Good indicator, useful to monitor and sequence functions. Internal 1 ms soft-start circuit allows the reduction of inrush current.
The device includes the short-circuit constant current limiting and thermal protection. The LD49100 is available in AEC-Q100 grade 1 qualified version, in a small 6-pin DFN6 (3x3 mm) with wettable flank package.
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所有功能
- AEC-Q100 qualified
- Temperature range: -40 °C to 125 °C
- Input voltage from 1.5 to 5.5 V
- Ultra low-dropout voltage (200 mV typ. at 1 A load)
- Very low quiescent current (20 µA typ. at no load, 200 µA typ. at 1 A load, 1 µA max. in off mode)
- Very low-noise with no bypass capacitor (30 µVRMS at VOUT = 0.8 V)
- Output voltage tolerance: ± 2.0% at 25 °C
- 1 A guaranteed output current
- Wide range of output voltages available on request: 0.8 V to 4.5 V with 100 mV step and adjustable from 0.8 V
- Logic-controlled electronic shutdown
- Power Good function
- Stable with ceramic capacitors COUT = 1 µF
- Internal current and thermal limit
- DFN6 (3x3 mm) package with wettable flanks
特别推荐
EDA符号、封装和3D模型
STMicroelectronics - LD49100
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符号
封装
3D模型
质量与可靠性
| 产品型号 | Marketing Status | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| LD49100PU10RY | 批量生产 | DFN6 3x3 | 汽车应用 | Ecopack2 | |
| LD49100PU12RY | 批量生产 | DFN6 3x3 | 汽车应用 | Ecopack2 | |
| LD49100PU15RY | 批量生产 | DFN6 3x3 | 汽车应用 | Ecopack2 | |
| LD49100PU18RY | 批量生产 | DFN6 3x3 | 汽车应用 | Ecopack2 | |
| LD49100PU25RY | 批量生产 | DFN6 3x3 | 汽车应用 | Ecopack2 | |
| LD49100PU33RY | 批量生产 | DFN6 3x3 | 汽车应用 | Ecopack2 | |
| LD49100PURY | 批量生产 | DFN6 3x3 | 汽车应用 | Ecopack2 |
LD49100PU10RY
Package:
DFN6 3x3Material Declaration**:
LD49100PU15RY
Package:
DFN6 3x3Material 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 | 封装 | 包装类型 | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | 等级规格 | Output Voltage (V) (nom) | Output Tolerance (typ) | 温度（ºC） | Output Current (A) (nom) | 等级规格 | Output Voltage (V) (nom) | Output Tolerance (typ) | Operating Temperature (°C) (min) | Output Current (A) (nom) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||||||||||
| LD49100PU33RY | | | distributors 无法联系到经销商，请联系我们的销售办事处 | DFN6 3x3 | Tape and Reel | THAILAND | EAR99 | NEC | Automotive | 3.3 | 2 | -40 | 125 | 1 | 汽车应用 | 3.3 | 2 | -40 | 1 | |||
| LD49100PU12RY | | | distributors 无法联系到经销商，请联系我们的销售办事处 | DFN6 3x3 | Tape and Reel | THAILAND | EAR99 | NEC | Automotive | 1.2 | 2 | -40 | 125 | 1 | 汽车应用 | 1.2 | 2 | -40 | 1 | |||
| LD49100PU10RY | | | distributors 无法联系到经销商，请联系我们的销售办事处 | DFN6 3x3 | Tape and Reel | THAILAND | EAR99 | NEC | Automotive | 1 | 2 | -40 | 125 | 1 | 汽车应用 | 1 | 2 | -40 | 1 | |||
| LD49100PU25RY | | | distributors 无法联系到经销商，请联系我们的销售办事处 | DFN6 3x3 | Tape and Reel | THAILAND | EAR99 | NEC | Automotive | 2.5 | 2 | -40 | 125 | 1 | 汽车应用 | 2.5 | 2 | -40 | 1 | |||
| LD49100PU18RY | | | distributors 无法联系到经销商，请联系我们的销售办事处 | DFN6 3x3 | Tape and Reel | THAILAND | EAR99 | NEC | Automotive | 1.8 | 2 | -40 | 125 | 1 | 汽车应用 | 1.8 | 2 | -40 | 1 | |||
| LD49100PU15RY | | | distributors 无法联系到经销商，请联系我们的销售办事处 | DFN6 3x3 | Tape and Reel | THAILAND | EAR99 | NEC | Automotive | 1.5 | 2 | -40 | 125 | 1 | 汽车应用 | 1.5 | 2 | -40 | 1 | |||
| LD49100PURY | | | distributors 无法联系到经销商，请联系我们的销售办事处 | DFN6 3x3 | Tape and Reel | THAILAND | EAR99 | NEC | Automotive | - | 2 | -40 | 125 | 1 | 汽车应用 | - | 2 | -40 | 1 | |||
LD49100PU33RY 批量生产
LD49100PU12RY 批量生产
LD49100PU10RY 批量生产
LD49100PU25RY 批量生产
LD49100PU18RY 批量生产
LD49100PU15RY 批量生产
LD49100PURY 批量生产