TPS55165QPWPTQ1 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TPS55165QPWPTQ1 is an automotive-grade PWM current-mode buck-boost switching regulator with 2 V to 36 V input range by Texas Instruments. Key specs: 12 V regulated output, 2.2 MHz switching frequency, HTSSOP-20 package. From $3.90, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 21
- Lifecycle
- ACTIVE
- Datasheet
- TPS55165QPWPTQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.8336(MOQ 10)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 2 V to 36 V wide input range covers 12 V and 24 V automotive battery rails including cold-crank (down to 2 V) and load-dump (up to 36 V) transients
- Fixed 12 V output regulated via current-mode PWM control at 2.2 MHz, allowing small 4.7 µH inductors and ceramic output capacitors
- AEC-Q100 automotive qualification and -40°C to +125°C operation for under-hood and infotainment power supply applications
Applications
TPS55165QPWPTQ1 provides a regulated 12 V output in automotive systems powered from a 12 V lead-acid or 24 V truck battery, maintaining regulation through engine start-stop events where the rail drops below 6 V. It suits infotainment head units, ADAS domain controllers, and telematics modules needing a stable 12 V rail from a wide-range vehicle bus. The 2.2 MHz switching frequency pushes switching noise above the AM radio band, simplifying EMI filter design.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 2017-11-29 |
| YTEOL | 15 |
| Additional Feature | ALSO VOUT=12 VOLT |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 36V |
| Input Voltage-Min | 2V |
| Input Voltage-Nom | 14V |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Output Voltage-Max | 12V |
| Output Voltage-Min | 5V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Screening Level | AEC-Q100 |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 2000kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| 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 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Taiwan |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS55165QPWPTQ1:
Switching Regulator, Current-mode, 1A, 2000kHz Switching Freq-Max, BICMOS, PDSO20
Frequently Asked Questions
How does TPS55165QPWPTQ1 maintain 12 V output during an automotive cold-crank event where the battery drops to 2 V?
TPS55165QPWPTQ1 operates as a boost converter when input voltage falls below 12 V, seamlessly transitioning between buck and boost modes. It continues regulating the 12 V output down to a 2 V input, covering the full cold-crank dip seen on 12 V lead-acid batteries during engine start in temperatures as low as -40°C.
What switching frequency does TPS55165QPWPTQ1 use and how does it affect inductor selection?
TPS55165QPWPTQ1 switches at 2.2 MHz, enabling the use of a compact 4.7 µH inductor versus the 22 µH to 47 µH inductors required at 400 kHz. Smaller inductors reduce both PCB footprint and bill-of-materials cost in the power stage, while the high frequency pushes EMI above the 1710 kHz AM radio band upper limit.
What is the maximum input voltage TPS55165QPWPTQ1 can withstand, and does it cover automotive load-dump transients?
TPS55165QPWPTQ1 accepts input voltages up to 36 V continuous, directly covering the ISO 7637-2 load-dump pulses up to 35 V that occur when a battery cable is disconnected on a running engine. No external transient voltage suppressor is required for standard 12 V automotive environments, simplifying the input protection circuit.
In which automotive module is TPS55165QPWPTQ1 most cost-effective compared to a discrete buck-boost design?
TPS55165QPWPTQ1 is most cost-effective in ADAS domain controllers and telematics units where the 12 V output powers 6 to 8 peripherals simultaneously, because its integrated current-mode PWM controller eliminates 4 to 6 discrete compensation components. At a 2 A to 3 A output current level, the single-IC solution saves approximately 15 mm² of board area versus a discrete design using a separate controller IC and external MOSFET.
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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 |
|---|---|---|
| 10+ | $6.9310 | $69.31 |
| 25+ | $6.4316 | $160.79 |
| 36+ | $5.5772 | $200.78 |
| 47+ | $5.3913 | $253.39 |
| 63+ | $4.8336 | $304.52 |
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