产品概述
描述
The LD1117 is a low drop voltage regulator able to provide up to 800 mA of output current, available even in adjustable version (VREF= 1.25 V). Concerning fixed versions, are offered the following output voltages: 1.2 V, 1.8 V, 2.5 V, 3.3 V and 5.0 V. The device is supplied in: SOT-223, DPAK, SO-8 and TO-220. The SOT-223 and DPAK surface mount packages optimize the thermal characteristics even offering a relevant space saving effect. High efficiency is assured by NPN pass transistor. In fact in this case, unlike than PNP one, the quiescent current flows mostly into the load. Only a very common 10 μF minimum capacitor is needed for stability. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 1 % at 25 °C. The adjustable LD1117 is pin to pin compatible with the other standard. Adjustable voltage regulators maintaining the better performances in terms of drop and tolerance.
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All features
- Low dropout voltage (1 V typ.)
- Output current up to 800 mA
- Fixed output voltage of: 1.2 V, 1.8 V, 2.5 V, 3.3 V, 5.0 V
- Adjustable version availability (VREF= 1.25 V)
- Internal current and thermal limit
- Available in ± 1 % (at 25 °C) and 2 % in full temperature range
- Supply voltage rejection: 75 dB (typ.)
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STMicroelectronics - LD1117
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | 符合RoHS级别 | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| LD1117D33CTR | Active 产品已量产 | SO-8 | Industrial | Ecopack2 | - | - | |
| LD1117D33TR | Active 产品已量产 | SO-8 | Industrial | Ecopack2 | - | - | |
| LD1117DT12CTR | Active 产品已量产 | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT12TR | Active 产品已量产 | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT18CTR | Active 产品已量产 | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT18TR | Active 产品已量产 | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT25CTR | Active 产品已量产 | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT25TR | Active 产品已量产 | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT33CTR | Active 产品已量产 | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT33TR | Active 产品已量产 | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT50CTR | Active 产品已量产 | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT50TR | Active 产品已量产 | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DTC-R | Active 产品已量产 | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DTTR | Active 产品已量产 | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117S12CTR | Active 产品已量产 | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S12TR | Active 产品已量产 | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S18CTR | Active 产品已量产 | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S18TR | Active 产品已量产 | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S25CTR | Active 产品已量产 | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S25TR | Active 产品已量产 | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S33CTR | Active 产品已量产 | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S33TR | Active 产品已量产 | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S50CTR | Active 产品已量产 | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S50TR | Active 产品已量产 | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117SC-R | Active 产品已量产 | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117STR | Active 产品已量产 | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117V33 | Active 产品已量产 | TO-220 | Industrial | Ecopack2 | - | - | |
| LD1117V33C | Active 产品已量产 | TO-220 | Industrial | Ecopack2 | - | - |
LD1117D33TR
Package:
SO-8Material Declaration**:
LD1117DT12CTR
Package:
DPAKMaterial Declaration**:
LD1117DT12TR
Package:
DPAKMaterial Declaration**:
LD1117DT25CTR
Package:
DPAKMaterial Declaration**:
PDFLD1117DT25TR
Package:
DPAKMaterial Declaration**:
PDFLD1117DTC-R
Package:
DPAKMaterial Declaration**:
LD1117DTTR
Package:
DPAKMaterial 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。
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Sample & Buy
LD1117DT50TR Active
LD1117D33TR Active
LD1117D33CTR Active
LD1117DT18TR Active
LD1117DT33TR Active
LD1117S50TR Active
LD1117S18CTR Active
LD1117S12CTR Active
LD1117STR Active
LD1117S25CTR Active
LD1117DT33CTR Active
LD1117DT50CTR Active
LD1117DT12CTR Active
LD1117S25TR Active
LD1117S33CTR Active
LD1117V33 Active
LD1117S18TR Active
LD1117DT25CTR Active
LD1117DTTR Active
LD1117DT18CTR Active
LD1117S33TR Active
LD1117S50CTR Active
LD1117DT25TR Active
LD1117V33C Active
LD1117SC-R Active
LD1117DT12TR Active
LD1117DTC-R Active
LD1117S12TR Active