Product overview
Description
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 | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| LD1117D33CTR | Active Product is in volume production. | SO-8 | Industrial | Ecopack2 | - | - | |
| LD1117D33TR | Active Product is in volume production. | SO-8 | Industrial | Ecopack2 | - | - | |
| LD1117DT12CTR | Active Product is in volume production. | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT12TR | Active Product is in volume production. | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT18CTR | Active Product is in volume production. | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT18TR | Active Product is in volume production. | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT25CTR | Active Product is in volume production. | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT25TR | Active Product is in volume production. | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT33CTR | Active Product is in volume production. | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT33TR | Active Product is in volume production. | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT50CTR | Active Product is in volume production. | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DT50TR | Active Product is in volume production. | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DTC-R | Active Product is in volume production. | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117DTTR | Active Product is in volume production. | DPAK | Industrial | Ecopack2 | - | - | |
| LD1117S12CTR | Active Product is in volume production. | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S12TR | Active Product is in volume production. | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S18CTR | Active Product is in volume production. | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S18TR | Active Product is in volume production. | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S25CTR | Active Product is in volume production. | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S25TR | Active Product is in volume production. | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S33CTR | Active Product is in volume production. | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S33TR | Active Product is in volume production. | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S50CTR | Active Product is in volume production. | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117S50TR | Active Product is in volume production. | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117SC-R | Active Product is in volume production. | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117STR | Active Product is in volume production. | SOT-223 | Industrial | Ecopack2 | - | - | |
| LD1117V33 | Active Product is in volume production. | TO-220 | Industrial | Ecopack2 | - | - | |
| LD1117V33C | Active Product is in volume production. | TO-220 | Industrial | Ecopack2 | - | - | |
| LD1117V50C | NRND Not recommended for New Design. Product is in volume production only to support customers ongoing production. EN | 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**:
LD1117V50C
Package:
TO-220Material Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||||
| LD1117DT50TR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117D33TR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117D33CTR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117DT18TR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117DT33TR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117S50TR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117S18CTR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117S12CTR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117STR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117S25CTR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117DT33CTR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117DT50CTR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117DT12CTR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117S25TR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117S33CTR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117V33 | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117S18TR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117DT25CTR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117DTTR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117DT18CTR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117S33TR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117S50CTR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117V50C | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117DT25TR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117V33C | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117SC-R | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117DT12TR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117DTC-R | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| LD1117S12TR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
LD1117DT50TR Active
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LD1117D33TR Active
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LD1117DT18TR Active
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LD1117DT33TR Active
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LD1117S50TR Active
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LD1117S18CTR Active
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LD1117S12CTR Active
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LD1117STR Active
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LD1117S25CTR Active
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LD1117DT33CTR Active
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LD1117DT50CTR Active
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LD1117DT12CTR Active
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LD1117S25TR Active
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distributors
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LD1117S33CTR Active
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LD1117V33 Active
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LD1117S18TR Active
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LD1117DT25CTR Active
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No availability of distributors reported, please contact our sales office
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LD1117DTTR Active
Budgetary Price (US$)*/Qty:
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distributors
No availability of distributors reported, please contact our sales office
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LD1117DT18CTR Active
Budgetary Price (US$)*/Qty:
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distributors
No availability of distributors reported, please contact our sales office
Package:
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ECCN (EU):
LD1117S33TR Active
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distributors
No availability of distributors reported, please contact our sales office
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LD1117S50CTR Active
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distributors
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LD1117V50C NRND
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LD1117DT25TR Active
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LD1117V33C Active
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LD1117SC-R Active
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LD1117DT12TR Active
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LD1117DTC-R Active
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LD1117S12TR Active
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