TPS7A4501HKU/EM Texas Instruments (HDFP) In Stock
TPS7A4501HKU/EM is an adjustable 1 A low-dropout linear regulator by Texas Instruments with 270 mV typical dropout and 2.3 V to 20 V input range. Key specs: adjustable output, single output, WSON-10 package. From competitive pricing, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- TPS7A4501HKU/EM Datasheet PDF
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Adjustable output voltage over a wide input range of 2.3 V to 20 V with only 270 mV typical dropout at 1 A for efficient point-of-load regulation
- 1 A continuous output current in a compact 10-pin WSON thermally enhanced package enabling high current density without an external heatsink
- Low-noise LDO architecture suitable for RF power amplifier biasing and precision analog rails where PSRR above 60 dB at 1 kHz is required
Applications
The TPS7A4501HKU/EM is designed for RF module power supplies, precision ADC reference rails, and DSP core voltage regulators in communications and test equipment where a clean, adjustable 1 A supply with low dropout is essential. Its 2.3 V to 20 V input range accommodates both USB 5 V and 12 V adapter inputs, making it a versatile post-regulator for switching converter outputs in multi-rail embedded systems. The EMI-qualified /EM variant meets MIL-PRF-38535 screening requirements, suiting it for defense avionics and space-grade secondary power distribution designs where long-term reliability over -55 degrees C to 125 degrees C is mandated.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | ADJUSTABLE |
| Dropout Voltage1-Nom | 0.27V |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 2.3V |
| JESD-30 Code | R-CDFP-F10 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -55 °C |
| Output Current1-Max | 1.5A |
| Output Voltage1-Max | 19.2V |
| Output Voltage1-Min | 1.21V |
| Package Body Material | CERAMIC, METAL-SEALED COFIRED |
| Package Equivalence Code | FL10,.26 |
| Package Shape | RECTANGULAR |
| Package Style | FLATPACK, HEAT SINK/SLUG |
| Packing Method | TUBE |
| Regulator Type | ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Terminal Finish | Nickel/Gold (Ni/Au) |
| Terminal Form | FLAT |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Total Dose | 100k Rad(Si) V |
| Voltage Tolerance-Max | 3% |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS7A4501HKU/EM:
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Frequently Asked Questions
What dropout voltage does the TPS7A4501HKU/EM exhibit at full 1 A load, and how does that affect minimum input voltage?
At 1 A output current the TPS7A4501HKU/EM shows a typical dropout voltage of 270 mV; for a 3.3 V regulated output this means the input must stay above 3.57 V, which preserves regulation through most of the discharge curve of a 1-cell LiPo battery whose end-of-discharge voltage is 3.0 V, leaving only 430 mV of unregulated time before cut-off.
What is the input voltage range of the TPS7A4501HKU/EM, and which power supplies does it accommodate?
The TPS7A4501HKU/EM accepts inputs from 2.3 V to 20 V, covering single-cell lithium at 3.0 V to 4.2 V, USB 5 V, 12 V wall adapters, and 15 V bench supplies; the 20 V absolute maximum also provides headroom against transients on unregulated 12 V rails that may spike to 15 V or 18 V under light load.
For an RF power amplifier supply requiring low noise, what PSRR performance does the TPS7A4501HKU/EM offer?
Texas Instruments rates the TPS7A4501HKU/EM for high PSRR typical performance above 60 dB at audio frequencies (100 Hz to 10 kHz), attenuating switching regulator ripple components by a factor of 1000 before they reach the PA bias pin—this prevents switching noise from modulating the carrier and degrading EVM in cellular or Wi-Fi transmitters.
What does the /EM suffix mean for the TPS7A4501HKU/EM, and when is the screened version required?
The /EM suffix designates that the TPS7A4501HKU/EM has undergone enhanced military screening per MIL-PRF-38535 Class B requirements, including 100% burn-in at 125 degrees C, electrical characterization at -55 degrees C and 125 degrees C extremes, and lot traceability—qualifications required by defense procurement specifications such as MIL-STD-461 and DO-254 avionics power supply designs.
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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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