TC1017-1.8VLTTR Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
TC1017-1.8VLTTR is a fixed 1.8 V LDO linear voltage regulator from Microchip delivering 150 mA output current, a maximum 0.5 V dropout voltage, and 2.8 V to 6 V input range in a tiny 5-pin SC70 tape-and-reel package for portable and IoT power supplies. From $0.45 in stock worldwide shipping.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- TC1017-1.8VLTTR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4593(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 1.8 V output with tight line regulation of 0.012% ensuring stable supply voltage for sensitive RF and CMOS logic loads
- 150 mA output current capacity in a compact 5-pin SC70 package, providing higher current density than comparable SOT-23-3 regulators
- Low 0.5 V maximum dropout voltage enabling efficient 1.8 V regulation from a 2.3 V minimum input, ideal for Li-ion battery end-of-life operation
- 2.8 V to 6 V wide input range accommodating single-cell Li-ion (3.7 V nominal), USB 5 V, and dual-AA battery (3 V) input sources
- Tape-and-reel (TTR) packaging supporting automated high-volume SMT assembly for IoT, wearable, and consumer device production lines
Applications
TC1017-1.8VLTTR is used in Bluetooth LE and Wi-Fi IoT modules where the radio front end and CMOS logic both require a clean, stable 1.8 V rail derived from a 3.3 V system supply or a single-cell Li-ion battery. It is well suited for wearable health monitors and portable handheld instruments where the SC70 package's tiny 2 mm x 2 mm footprint minimizes board area and the low 0.5 V dropout voltage extends battery life near end-of-discharge. The device also serves as a point-of-load regulator on FPGA and microcontroller boards providing a dedicated 1.8 V I/O supply from a 3.3 V bus.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SC70-5 |
| YTEOL | 8 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.5V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 2.8V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.01152% |
| Load Regulation-Max | 0.027% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage1-Max | 1.845V |
| Output Voltage1-Min | 1.755V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP5/6,.08 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | TS 16949 |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the dropout voltage of TC1017-1.8VLTTR, and why does it matter for Li-ion battery applications?
TC1017-1.8VLTTR has a maximum dropout voltage of 0.5 V, meaning it can regulate 1.8 V output as long as the input remains above 2.3 V. For a single-cell Li-ion battery that discharges from 4.2 V to a 3.0 V cutoff, the regulator maintains regulation throughout the entire usable capacity, extracting roughly 15% more energy compared to a standard LDO with a 1.0 V dropout that would stop regulating at 2.8 V.
How much output current can TC1017-1.8VLTTR supply, and is it sufficient for a Bluetooth LE SoC?
TC1017-1.8VLTTR supplies up to 150 mA of continuous output current. Most Bluetooth LE SoCs (for example Nordic nRF52 series) draw a peak of 15 mA during 0 dBm transmission and under 5 mA in active scan mode, so TC1017-1.8VLTTR provides more than 10 times the required headroom, making it fully adequate for single-SoC BLE designs including external crystal, flash memory, and I/O current at 1.8 V.
What input voltage range does TC1017-1.8VLTTR accept, and which power sources are compatible?
TC1017-1.8VLTTR accepts input voltages from 2.8 V to 6 V, making it compatible with single-cell Li-ion batteries (3.0 V–4.2 V), USB 5 V bus power, two AA alkaline cells in series (nominally 3 V), and regulated 3.3 V system rails. The 6 V maximum input also accommodates a 4-AA pack (6 V fresh) without over-voltage risk, covering a wide range of portable and industrial power source configurations.
In a compact wearable design, how does the SC70-5 package of TC1017-1.8VLTTR compare to a SOT-23-5 alternative?
The SC70-5 package used by TC1017-1.8VLTTR measures approximately 2.0 mm x 2.1 mm, roughly 35% smaller in footprint than the standard SOT-23-5 (2.9 mm x 1.6 mm body). For wearable devices where PCB area is constrained to under 15 mm x 20 mm, this size reduction is significant. Both packages use the same 0.65 mm pin pitch and are compatible with standard SMT reflow processes.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.5800 | $0.58 |
| 25+ | $0.4900 | $12.25 |
| 100+ | $0.4625 | $46.25 |
| 3000+ | $0.4593 | $1377.90 |
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