TPS40192DRCTG4 Texas Instruments Integrated Circuit (Other) In Stock
TPS40192DRCTG4 is a voltage-mode synchronous buck DC/DC controller from Texas Instruments operating from 4.5 V to 18 V input with a fixed 700 kHz switching frequency and single output. Features PWM control and 10-pin SON package for compact high-density power supply designs. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 10
- Lifecycle
- OBSOLETE
- Datasheet
- TPS40192DRCTG4 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
Key Features
- Voltage-mode PWM control with 700 kHz fixed switching frequency enables compact magnetics design and fast transient response in synchronous buck converters
- Wide 4.5 V to 18 V input range covers 5 V, 12 V, and adjustable 5.1 V–5.5 V operating modes for versatile industrial and telecom supply rails
- 10-pin SON (S-PDSO-N10) package with exposed pad provides excellent thermal dissipation in high-density power module layouts
Applications
The TPS40192DRCTG4 is used as the control stage in synchronous buck regulators for server point-of-load converters, telecom power modules, and industrial equipment running from 12 V distribution buses. Its adjustable mode between 5.1 V and 5.5 V enables fine-tuned output voltage for DDR memory and FPGA core supply regulation. The 700 kHz switching frequency reduces inductor and capacitor size, making it suitable for space-constrained embedded computing power stages.
Specifications
| YTEOL | 0 |
| Additional Feature | ALSO OPERATES IN ADJUSTABLE MODE FROM 5.1V TO 5.5V |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 18V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PDSO-N10 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 20A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC10,.12,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | PUSH-PULL |
| Switching Frequency-Max | 700kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What switching frequency does TPS40192DRCTG4 use, and how does it affect the size of the output inductor?
The TPS40192DRCTG4 operates at a fixed 700 kHz switching frequency. At 700 kHz, the required output inductance for a typical 12 V to 3.3 V buck stage at 5 A is approximately 2–4 µH, compared to 10–15 µH at 100 kHz. This 3–7x reduction in inductance value allows use of physically smaller ferrite inductors, cutting converter footprint significantly in server and telecom power modules.
Can TPS40192DRCTG4 regulate a 3.3 V output directly from a 12 V telecom input bus?
Yes. The TPS40192DRCTG4 supports a 4.5 V to 18 V input range, making 12 V to 3.3 V conversion well within its operating window. With voltage-mode PWM control and a nominal 12 V input, it drives external N-channel MOSFETs in a synchronous buck topology, achieving conversion efficiencies above 90% at load currents up to the MOSFET's rated current, typically 10 A to 20 A in optimized designs.
How does the SON-10 package of TPS40192DRCTG4 help with thermal management in a high-density power supply board?
The SON-10 (S-PDSO-N10) package features an exposed metal pad on its underside that transfers heat directly to a PCB copper pour. At 700 kHz and 12 V input, controller quiescent power dissipation is low (typically under 100 mW), and the exposed pad keeps the junction well below the 125 °C maximum even without an external heatsink, enabling compact layouts where airflow is limited in 1U rack-mount power supplies.
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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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