HPA00328DCKR Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
Fixed-output positive LDO linear regulator delivering 50 mA from a 1.2V to 15V output range with a 415 mV typical dropout voltage and 0.06% maximum line regulation. Supplied in a compact 5-pin SC-70 package with a 24V absolute maximum input for portable and industrial power rails.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- HPA00328DCKR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of HPA00328DCKR?
- Output voltage range from 1.2V to 15V in fixed increments covers a broad array of digital and analog supply rails with a single regulator family
- 415 mV typical dropout voltage at 50 mA allows operation from input rails only 0.75V above the output, reducing dissipation in battery-powered designs
- 0.06% maximum line regulation ensures stable output across a 4.05V to 24V input swing without external compensation components
- 24V absolute maximum input rating supports direct connection to automotive 12V or 24V bus rails after the transient clamp
- 5-pin SC-70 package (2.0 mm × 2.1 mm) minimizes PCB area in space-constrained portable instruments and IoT sensor modules
What is HPA00328DCKR used for?
The HPA00328 is used as a local post-regulator on industrial sensor boards, portable test equipment, and IoT nodes where a fixed 50 mA rail must be derived from a 5V to 24V supply with low noise and tight line regulation. Its 24V input tolerance and compact SC-70 package make it suitable for always-on bias rails in automotive electronics, HVAC controllers, and wearable medical devices.
What are the specifications of HPA00328DCKR?
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.75V |
| Dropout Voltage1-Nom | 0.415V |
| Input Voltage Absolute-Max | 24V |
| Input Voltage-Max | 24V |
| Input Voltage-Min | 4.05V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Line Regulation-Max | 0.06% |
| Load Regulation-Max | 0.022% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.05A |
| Output Voltage1-Max | 3.432V |
| Output Voltage1-Min | 3.168V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | NICKEL PALLADIUM GOLD SILVER |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 4% |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the HPA00328DCKR datasheet?
HPA00328DCKR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for HPA00328DCKR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the dropout voltage of the HPA00328DCKR and how does it affect battery-powered system design?
The HPA00328DCKR has a typical dropout voltage of 415 mV and a maximum of 750 mV at 50 mA output. In a 3.3V fixed-output design powered by a Li-ion cell discharged to 3.7V, the 415 mV dropout leaves 350 mV of headroom, extending usable battery capacity by an additional 15–20% versus a regulator with a 1V dropout voltage.
What output voltage options are available for the HPA00328 family and how is the output selected?
The HPA00328 is a fixed-output LDO available in factory-programmed output voltages spanning 1.2V to 15V. The output voltage is determined at the time of order by the part number suffix, with no external resistor divider required, eliminating resistor tolerance errors and reducing BOM to just the IC plus two bypass capacitors for a complete 50 mA regulated rail.
Can the HPA00328DCKR be used directly on a 12V or 24V automotive rail?
Yes, the HPA00328DCKR accepts input voltages up to 24V absolute maximum, making it compatible with a 12V automotive battery bus after a standard 36V transient suppressor clamp. For 24V truck or industrial bus rails, the LDO can regulate a 5V or 3.3V output at 50 mA provided the input never exceeds the 24V absolute maximum during load dump transients without a clamp.
How does the HPA00328's SC-70 package size compare to an SOT-23 LDO and what PCB area is saved?
The 5-pin SC-70 package measures 2.0 mm × 2.1 mm with a 0.65 mm pitch, while a comparable 5-pin SOT-23 package is approximately 2.9 mm × 1.6 mm. The SC-70 saves roughly 30% of total component footprint area, an advantage on multi-rail IoT sensor PCBs where 4 to 8 LDO regulators must fit alongside a radio module within a 10 mm × 10 mm board section.
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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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