TPS77718PWPR Texas Instruments (TSSOP) In Stock
TPS77718PWPR is a fixed-output 1.8 V low-dropout (LDO) linear regulator by Texas Instruments, supporting input voltages from 2.7 V to 10 V with a nominal dropout voltage of 0.26 V. Key specs: 10 V max input, 13.5 V absolute max, 20-pin TSSOP package. From competitive pricing, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- TPS77718PWPR Datasheet PDF
- Price
- From $0.4641(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 1.8 V output with only 0.26 V nominal dropout voltage enables operation with input rails as low as 2.7 V for tight power budgets
- Wide input voltage range of 2.7 V to 10 V (absolute max 13.5 V) accommodates diverse battery and rail supply inputs
- 20-pin TSSOP (R-PDSO-G20) package with Pb-free construction (JESD-609 e4) for RoHS-compliant designs
- Low quiescent current design minimizes power dissipation in always-on and battery-operated systems
Applications
TPS77718PWPR is ideal for powering 1.8 V digital logic, microcontrollers, FPGAs, and memory devices in battery-operated portable electronics where low dropout voltage is critical for maximizing runtime. Its wide input voltage range of 2.7 V to 10 V makes it suitable for systems powered by single-cell Li-ion batteries or regulated 5 V rails in embedded computing, handheld instruments, and wireless sensor nodes. The compact 20-pin TSSOP package supports dense PCB layouts in space-constrained industrial and consumer applications.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 1.836V |
| Dropout Voltage1-Nom | 0.26V |
| Input Voltage Absolute-Max | 13.5V |
| Input Voltage-Max | 10V |
| Input Voltage-Min | 2.7V |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Line Regulation-Max | 0.001314% |
| Load Regulation-Max | 0.003% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.75A |
| Output Voltage1-Max | 1.836V |
| Output Voltage1-Min | 1.764V |
| Output Voltage1-Nom | 1.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | PMOS |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 2% |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mainland China, Philippines, Taiwan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How low can the input voltage drop before TPS77718PWPR loses regulation at its 1.8 V output?
TPS77718PWPR has a nominal dropout voltage of 0.26 V, meaning the input must stay above approximately 2.06 V for a regulated 1.8 V output. The device accepts input voltages from 2.7 V to 10 V in normal operation and an absolute maximum of 13.5 V, giving designers flexibility when working with variable battery supplies that droop under load.
Which single-cell Li-ion battery applications benefit most from TPS77718PWPR's dropout characteristics?
Single-cell Li-ion batteries discharge from about 4.2 V to 3.0 V, well within the 2.7 V to 10 V input range of TPS77718PWPR. The 0.26 V nominal dropout allows the regulated 1.8 V output to remain stable throughout most of the discharge cycle, making this regulator suitable for IoT modules, wearables, and portable sensor nodes where maximizing usable battery capacity across 8-10 hours of runtime matters.
What load current can TPS77718PWPR deliver and how does that constrain thermal design in a TSSOP package?
The TPS77718PWPR is rated for moderate load currents typical of LDO regulators in the 150 mA to 500 mA class (verify datasheet for exact figure). Power dissipation equals (Vin – 1.8 V) × Iload; at 5 V input and 300 mA load that is approximately 0.96 W. The 20-pin TSSOP package relies on PCB copper pours and thermal vias for heat spreading, so ground plane sizing should target junction-to-ambient below 125°C.
Is TPS77718PWPR a suitable lower-cost alternative to adjustable LDOs in fixed-rail power trees?
Yes. When the design requires a fixed 1.8 V rail, TPS77718PWPR eliminates the external feedback resistor divider needed by adjustable LDOs, reducing BOM count by at least 2 components and shrinking solution footprint. The fixed-output version also avoids resistor tolerance errors that can shift output by ±2-3%, improving output accuracy in designs powering DDR memory or low-voltage logic that requires tight ±2% rail tolerance.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $7.6900 | $7.69 |
| 100+ | $0.4798 | $47.98 |
| 250+ | $0.4720 | $118.00 |
| 500+ | $0.4641 | $232.05 |
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