产品概述
描述
The LDF is a fast, very low drop linear regulator which operates from an input supply voltage in the range of 2.6 V to 16 V. It is available in fixed and adjustable output voltage versions, from 0.8 V to 12 V.The LDF features are: high output precision, very low-dropout voltage, low noise, and low quiescent current, therefore suitable for low voltage microprocessors and memory applications.
Enable logic control pin and power-good output are featured on PPAK/DFN packages.
Current and thermal protection are provided.
-
所有功能
- Input voltage from 2.6 to 16 V
- Very low-dropout voltage (500 mV max. at 1 A load)
- Low quiescent current (200 μA typ. @ 1 A load)
- Available in 1% precision in PPAK and DFN6 packages, 2% in DPAK
- 1 A guaranteed output current
- Wide range of output voltages available on request: adjustable from 0.8 V, fixed up to 12 V in 100 mV steps
- Logic-controlled electronic shutdown
- Power Good (PPAK and DFN packages)
- Fast dynamic response to line and load changes
- Internal current and thermal protections
- Temperature range: -40 °C to 125 °C
精选 视频
全部资源
| Resource title | 版本 | Latest update |
|---|
产品规格 (1)
| Resource title | 版本 | Latest update | ||
|---|---|---|---|---|
| 2.0 | 03 May 2017 | 03 May 2017 |
手册 (2)
| Resource title | 版本 | Latest update | ||
|---|---|---|---|---|
| 2.0 | 02 Jul 2021 | 02 Jul 2021 | ||
| 2.0 | 19 Mar 2021 | 19 Mar 2021 |
EDA符号、封装和3D模型
STMicroelectronics - LDF
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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** |
|---|---|---|---|---|---|
| LDF18PT-TR | NRND | PPACK 5 | 工业 | Ecopack2 | |
| LDF25PT-TR | NRND | PPACK 5 | 工业 | Ecopack2 | |
| LDF33DT-TR | NRND | DPAK | 工业 | Ecopack2 | |
| LDF33PT-TR | NRND | PPACK 5 | 工业 | Ecopack2 | |
| LDFPT-TR | NRND | PPACK 5 | 工业 | Ecopack2 | |
| LDFPUR | 批量生产 | DFN6 3x3 | 工业 | Ecopack2 | |
| LDFPVR | 批量生产 | DFN6 2x2 | 工业 | Ecopack2 |
LDF18PT-TR
Package:
PPACK 5Material Declaration**:
LDF25PT-TR
Package:
PPACK 5Material Declaration**:
LDF33PT-TR
Package:
PPACK 5Material 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 | 从分销商订购 | 从ST订购 | 供货状态 | ECCN (US) | ECCN (EU) | 包装类型 | 封装 | 温度（ºC） | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | Country of Origin | Budgetary Price (US$)*/Qty | 更多信息 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||||
| LDFPT-TR | 3 distributors | Buy Direct | NRND | EAR99 | NEC | Tape And Reel | PPACK 5 | -40 | 125 | - | 1 | 1 | CHINA | 0.476 / 1k | ||
| LDFPVR | 3 distributors | 批量生产 | EAR99 | NEC | Tape And Reel | DFN6 2x2 | -40 | 125 | - | 1 | 1 | CHINA | 0.5236 / 1k | |||
| LDFPUR | 无法联系到经销商，请联系我们的销售办事处 | 批量生产 | EAR99 | NEC | Tape And Reel | DFN6 3x3 | -40 | 125 | - | 1 | 1 | CHINA | 0.5236 / 1k | |||
| LDF33PT-TR | 3 distributors | NRND | EAR99 | NEC | Tape And Reel | PPACK 5 | -40 | 125 | 3.3 | 1 | 1 | CHINA | 0.6039 / 1k | |||
| LDF25PT-TR | 1 distributors | NRND | EAR99 | NEC | Tape And Reel | PPACK 5 | -40 | 125 | 2.5 | 1 | 1 | CHINA | 0.6039 / 1k | |||
| LDF18PT-TR | 1 distributors | NRND | EAR99 | NEC | Tape And Reel | PPACK 5 | -40 | 125 | 1.8 | 1 | 1 | CHINA | 0.6039 / 1k | |||
| LDF33DT-TR | 2 distributors | Buy Direct | NRND | EAR99 | NEC | Tape And Reel | DPAK | -40 | 125 | 3.3 | 2 | 1 | CHINA | 0.6039 / 1k | ||
供货状态
批量生产ECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.5236 / 1k供货状态
批量生产ECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.5236 / 1k供货状态
NRNDECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.6039 / 1k供货状态
NRNDECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.6039 / 1k供货状态
NRNDECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.6039 / 1k