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, 2.85 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.
-
All features
- Low dropout voltage (1 V typ.)
- 2.85 V device performances are suitable for SCSI-2 active termination
- 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.)
You might also like...
Recommended for you
EDA Symbols, Footprints and 3D Models
STMicroelectronics - LD1117
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Please select one model supplier :
Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| LD1117D33CTR | Active | SO-8 | Industrial | Ecopack2 | |
| LD1117D33TR | Active | SO-8 | Industrial | Ecopack2 | |
| LD1117DT12CTR | Active | DPAK | Industrial | Ecopack2 | |
| LD1117DT12TR | Active | DPAK | Industrial | Ecopack2 | |
| LD1117DT18CTR | Active | DPAK | Industrial | Ecopack2 | |
| LD1117DT18TR | Active | DPAK | Industrial | Ecopack2 | |
| LD1117DT25CTR | Active | DPAK | Industrial | Ecopack2 | |
| LD1117DT25TR | Active | DPAK | Industrial | Ecopack2 | |
| LD1117DT33CTR | Active | DPAK | Industrial | Ecopack2 | |
| LD1117DT33TR | Active | DPAK | Industrial | Ecopack2 | |
| LD1117DT50CTR | Active | DPAK | Industrial | Ecopack2 | |
| LD1117DT50TR | Active | DPAK | Industrial | Ecopack2 | |
| LD1117DTC-R | Active | DPAK | Industrial | Ecopack2 | |
| LD1117DTTR | Active | DPAK | Industrial | Ecopack2 | |
| LD1117S12CTR | Active | SOT-223 | Industrial | Ecopack2 | |
| LD1117S12TR | Active | SOT-223 | Industrial | Ecopack2 | |
| LD1117S18CTR | Active | SOT-223 | Industrial | Ecopack2 | |
| LD1117S18TR | Active | SOT-223 | Industrial | Ecopack2 | |
| LD1117S25CTR | Active | SOT-223 | Industrial | Ecopack2 | |
| LD1117S25TR | Active | SOT-223 | Industrial | Ecopack2 | |
| LD1117S33CTR | Active | SOT-223 | Industrial | Ecopack2 | |
| LD1117S33TR | Active | SOT-223 | Industrial | Ecopack2 | |
| LD1117S50CTR | Active | SOT-223 | Industrial | Ecopack2 | |
| LD1117S50TR | Active | SOT-223 | Industrial | Ecopack2 | |
| LD1117SC-R | Active | SOT-223 | Industrial | Ecopack2 | |
| LD1117STR | Active | SOT-223 | Industrial | Ecopack2 | |
| LD1117V33 | Active | TO-220 | Industrial | Ecopack2 | |
| LD1117V33C | Active | 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**:
LD1117S18CTR
Package:
SOT-223Material Declaration**:
LD1117S18TR
Package:
SOT-223Material 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.
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 | |||||||||||
| 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
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
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors