TPS77628PWPG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TPS77628PWPG4 is a fixed 2.8 V low-dropout linear voltage regulator capable of delivering 500 mA output current with a maximum dropout voltage of 410 mV and input range of 2.7 V to 10 V. Housed in a 20-pin HTSSOP package, it provides ±2% output accuracy for powering RF modules, DSPs, and portable electronics requiring a stable 2.8 V rail.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- TPS77628PWPG4 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS77628PWPG4?
- Fixed 2.8 V output with ±2% accuracy for precision power rails
- 500 mA maximum output current with 410 mV maximum dropout voltage
- Wide 2.7 V to 10 V input voltage range for multi-source compatibility
- 20-pin HTSSOP package enabling compact PCB footprint with thermal pad
- Low quiescent current for extended battery life in portable designs
- Enable pin for controlled power sequencing in multi-rail systems
What is TPS77628PWPG4 used for?
TPS77628PWPG4 is used to power RF transceivers, GPS modules, and baseband processors in portable consumer electronics and IoT devices where a stable 2.8 V supply is required from a lithium-ion battery or 5 V regulated bus. It is also employed in industrial handheld instruments and medical sensor nodes that demand tight output voltage accuracy within ±2% to meet ADC reference and sensor bias requirements. The wide input voltage range and low dropout make it suitable for post-regulator stages following switching converters in multirail power architectures.
What are the specifications of TPS77628PWPG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.41V |
| Dropout Voltage1-Nom | 0.285V |
| 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 | 0.002044% |
| 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 | 0.5A |
| Output Voltage1-Max | 2.856V |
| Output Voltage1-Min | 2.744V |
| Output Voltage1-Nom | 2.8V |
| 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 | TUBE |
| 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 |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 2% |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the TPS77628PWPG4 datasheet?
TPS77628PWPG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS77628PWPG4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How much headroom does TPS77628PWPG4 need above its 2.8 V output to stay in regulation?
TPS77628PWPG4 requires a minimum 285 mV of dropout at nominal conditions, rising to 410 mV under worst-case load and temperature. This means the input voltage must be at least 3.21 V to maintain the 2.8 V output at full 500 mA load. On a 3.3 V rail, this leaves just 90 mV margin above the nominal dropout, so designers should verify input voltage under transient conditions.
Can TPS77628PWPG4 power an RF front-end module that draws up to 450 mA during transmission bursts?
Yes, TPS77628PWPG4 is rated for 500 mA continuous output, providing 50 mA headroom above a 450 mA transmit burst. The ±2% output accuracy ensures the 2.8 V rail stays within 56 mV of nominal during peak current events, which is within the typical supply tolerance of most RF front-end modules requiring a 2.8 V ± 100 mV bias. Adequate input bypass capacitance of at least 1 µF is recommended to handle transient load steps.
What input voltage sources are compatible with TPS77628PWPG4 in a portable design?
TPS77628PWPG4 accepts input voltages from 2.7 V to 10 V, making it compatible with single-cell lithium-ion batteries (2.7 V to 4.2 V), dual-cell NiMH packs (around 2.4 V to 3.0 V boosted), 5 V USB power, and regulated 9 V adapter outputs. This range covers most portable and bench-powered scenarios, eliminating the need for a separate pre-regulator in systems with variable DC input sources.
How does the HTSSOP-20 package of TPS77628PWPG4 help with thermal management at full load?
The 20-pin HTSSOP package includes an exposed thermal pad on the bottom that reduces junction-to-board thermal resistance to approximately 30°C/W, compared to over 50°C/W for a standard SOIC without a pad. At 500 mA output with a 2 V input-output differential (1 W dissipation), the junction temperature rise is about 30°C above the board temperature, keeping the device well within its 125°C maximum junction rating at a 75°C ambient.
In a multi-rail power sequence design, how can TPS77628PWPG4's enable pin control the 2.8 V turn-on order?
TPS77628PWPG4 provides a dedicated enable pin that goes active high at approximately 1.5 V logic threshold, allowing a microcontroller or sequencing IC to control when the 2.8 V output powers up relative to other rails. Connecting this enable signal to the power-good output of a prior-sequenced 1.8 V regulator ensures the 2.8 V rail rises only after the core supply is stable, preventing latch-up in FPGAs and SoCs that require strict 100 ms ramp sequencing between power domains.
Related Guides
STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply
Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.
Aug 1, 2026
STM32H725IGT3 High-Performance MCU Design Guide
Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.
Jul 31, 2026
150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing
Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.
Jul 31, 2026
STEF05SGR 5 V eFuse Protection Design Guide
Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.
Jul 30, 2026
Why Buy from FindMyChip
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.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit