TPS77701DRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TPS77701DRG4 is an adjustable low-dropout (LDO) linear regulator from Texas Instruments capable of supplying 0.75 A output current with a typical dropout voltage of only 0.26 V in an 8-pin SOIC package. It covers an output voltage range of 1.5 V to 5.5 V, featuring 0.2% load regulation and a 125°C junction temperature rating for use in portable and industrial power designs.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TPS77701DRG4 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS77701DRG4?
- 0.26 V typical dropout voltage enables regulation close to input supply
- 0.75 A output current capacity for moderate-power embedded system loads
- Adjustable output from 1.5 V to 5.5 V set by external resistor divider
- 0.2% max load regulation ensures stable output under varying current demands
- 8-pin SOIC package with up to 125°C junction temperature for industrial use
What is TPS77701DRG4 used for?
The TPS77701DRG4 is used as a post-regulator in battery-powered portable devices, embedded processors, and DSP power rails where minimising dropout voltage is critical for extending battery life. Its 0.75 A output and adjustable voltage range make it suitable for supplying 1.8 V, 2.5 V, or 3.3 V core and I/O rails from a single 3.3 V or 5 V input bus in embedded controller designs. It is also applied in industrial instrumentation and communication cards where tight load regulation and a compact 8-pin SOIC footprint are required alongside operation up to 125°C junction temperature.
What are the specifications of TPS77701DRG4?
| YTEOL | 0 |
| Adjustability | ADJUSTABLE |
| Dropout Voltage1-Nom | 0.26V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Line Regulation-Max (%/V) | 0.01 |
| Load Regulation-Max(%) | 0.2% |
| 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 | 5.5V |
| Output Voltage1-Min | 1.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | PMOS |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the TPS77701DRG4 datasheet?
TPS77701DRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS77701DRG4?
Compatible alternatives and drop-in replacements for TPS77701DRG4:
Regulator, 1.5V Min, 5.5V Max, 0.427V Dropout, PMOS, PDSO8
Frequently Asked Questions
What is the dropout voltage of TPS77701DRG4, and how does it affect battery-powered applications?
The TPS77701DRG4 has a typical dropout voltage of 0.26 V, meaning the input supply needs to be only 0.26 V above the set output to maintain regulation. In a lithium-ion powered system delivering a 3.3 V rail, this allows the battery to discharge down to approximately 3.56 V before the regulator drops out, extending usable battery runtime compared to regulators requiring 0.5 V to 1.5 V dropout headroom.
How adjustable is the TPS77701DRG4 output voltage, and what sets the output in a real circuit?
The TPS77701DRG4 output voltage is adjustable from 1.5 V to 5.5 V using an external resistor divider connected to the ADJ pin, following the standard LDO feedback equation V_OUT = V_REF × (1 + R1/R2). This flexibility lets the same device supply 1.8 V for DDR memory, 2.5 V for FPGAs, or 3.3 V for mixed-signal circuitry by simply changing two resistors, reducing the number of distinct LDO SKUs needed across a product family.
How does TPS77701DRG4 load regulation compare to competing fixed-voltage LDOs for noise-sensitive analog circuits?
The TPS77701DRG4 specifies a maximum load regulation of 0.2%, meaning the output voltage changes by no more than 0.2% across the full 0 A to 0.75 A load range. For a 3.3 V rail that translates to at most 6.6 mV variation, which is acceptable for most ADC reference supply and analog front-end requirements. Its 0.01%/V maximum line regulation also ensures the output stays stable even when the input bus voltage fluctuates, making it suitable for powering precision measurement circuits.
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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.
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