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.
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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.)
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STMicroelectronics - LD1117
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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 | |
| LD1117V | NRND | TO-220 | Industrial | Ecopack2 | |
| LD1117V18 | NRND | TO-220 | Industrial | Ecopack2 | |
| LD1117V33 | Active | TO-220 | Industrial | Ecopack2 | |
| LD1117V33-DG | NRND | TO-220 | Industrial | Ecopack2 | |
| LD1117V33C | Active | TO-220 | Industrial | Ecopack2 | |
| LD1117V50 | NRND | TO-220 | Industrial | Ecopack2 | |
| LD1117V50C | NRND | TO-220 | Industrial | Ecopack2 | |
LD1117D33CTR
Package:
SO-8Material Declaration**:
LD1117DT25CTR
Package:
DPAKMaterial Declaration**:
PDFLD1117DT25TR
Package:
DPAKMaterial Declaration**:
PDFLD1117S12CTR
Package:
SOT-223Material Declaration**:
LD1117S12TR
Package:
SOT-223Material Declaration**:
LD1117S18CTR
Package:
SOT-223Material Declaration**:
LD1117S18TR
Package:
SOT-223Material Declaration**:
LD1117S33CTR
Package:
SOT-223Material Declaration**:
LD1117SC-R
Package:
SOT-223Material Declaration**:
LD1117STR
Package:
SOT-223Material Declaration**:
LD1117V
Package:
TO-220Material Declaration**:
LD1117V18
Package:
TO-220Material Declaration**:
LD1117V33-DG
Package:
TO-220Material Declaration**:
LD1117V50
Package:
TO-220Material 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.
Sample & Buy
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| Part Number | Order from distributors | Order from ST | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| LD1117DT50TR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | DPAK | 0 | 125 | CHINA | | ||
| LD1117D33TR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | SO-8 | 0 | 125 | CHINA | | ||
| LD1117D33CTR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | SO-8 | 0 | 125 | CHINA | | ||
| LD1117DT18TR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | DPAK | 0 | 125 | CHINA | | ||
| LD1117DT33TR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | DPAK | 0 | 125 | CHINA | | ||
| LD1117S50TR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | SOT-223 | 0 | 125 | CHINA | | ||
| LD1117S18CTR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | SOT-223 | 0 | 125 | CHINA | | ||
| LD1117S12CTR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | SOT-223 | 0 | 125 | CHINA | | ||
| LD1117STR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | SOT-223 | 0 | 125 | CHINA | | ||
| LD1117S25CTR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | SOT-223 | 0 | 125 | CHINA | | ||
| LD1117DT33CTR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | DPAK | 0 | 125 | CHINA | | ||
| LD1117DT50CTR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | DPAK | 0 | 125 | CHINA | | ||
| LD1117DT12CTR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | DPAK | 0 | 125 | CHINA | | ||
| LD1117S25TR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | SOT-223 | 0 | 125 | CHINA | | ||
| LD1117V33-DG | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tube | TO-220 | 0 | 125 | CHINA | | ||
| LD1117S33CTR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | SOT-223 | 0 | 125 | CHINA | | ||
| LD1117V33 | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | TO-220 | 0 | 125 | CHINA | | ||
| LD1117S18TR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | SOT-223 | 0 | 125 | CHINA | | ||
| LD1117DT25CTR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | DPAK | 0 | 125 | CHINA | | ||
| LD1117DTTR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | DPAK | 0 | 125 | CHINA | | ||
| LD1117DT18CTR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | DPAK | 0 | 125 | CHINA | | ||
| LD1117S33TR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | SOT-223 | 0 | 125 | CHINA | | ||
| LD1117S50CTR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | SOT-223 | 0 | 125 | CHINA | | ||
| LD1117V50C | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tube | TO-220 | 0 | 125 | CHINA | | ||
| LD1117DT25TR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | DPAK | 0 | 125 | CHINA | | ||
| LD1117V33C | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | TO-220 | 0 | 125 | CHINA | | ||
| LD1117SC-R | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | SOT-223 | 0 | 125 | CHINA | | ||
| LD1117DT12TR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | DPAK | 0 | 125 | CHINA | | ||
| LD1117V | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tube | TO-220 | 0 | 125 | CHINA | | ||
| LD1117V50 | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tube | TO-220 | 0 | 125 | CHINA | | ||
| LD1117V18 | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tube | TO-220 | 0 | 125 | CHINA | | ||
| LD1117DTC-R | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | DPAK | 0 | 125 | CHINA | | ||
| LD1117S12TR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | SOT-223 | 0 | 125 | CHINA | | ||
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(*) 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