TPS40195RGYT Texas Instruments Integrated Circuit (Other) In Stock
TPS40195RGYT is a voltage-mode PWM synchronous buck controller from Texas Instruments supporting 4.5 V to 20 V input and adjustable output from 1 V to 5 V in a 16-pin QFN package. It drives external MOSFETs for high-efficiency DC-DC conversion in telecom, industrial, and computing point-of-load designs. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- TPS40195RGYT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.6600(MOQ 10)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide 4.5 V to 20 V input range with adjustable output from 1 V to 5 V suits diverse point-of-load power supplies in 12 V bus architectures
- Voltage-mode PWM control with adjustable switching frequency enables optimization of inductor size and EMI for the target application
- Drives external N-channel synchronous MOSFETs, allowing designers to select FETs optimized for efficiency at their specific load current
- Compact 16-pin QFN package minimizes PCB footprint for high-power-density board designs in telecom and networking equipment
Applications
TPS40195RGYT is used in point-of-load power supplies for telecom line cards, networking equipment, and server boards that require regulated 1 V to 5 V rails from a 12 V intermediate bus at high efficiency. Its voltage-mode PWM control and adjustable frequency are well matched to FPGA core-voltage rails and DDR memory power supplies where tight output regulation and fast transient response are essential. Industrial automation controllers and motor drive control boards also use it to generate logic supply rails from 24 V bus inputs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | ALSO OPERATES IN ADJUSTABLE MODE FROM 1 TO 5V |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PQCC-N16 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 20A |
| Output Voltage-Max | 17V |
| Output Voltage-Min | 0.591V |
| Output Voltage-Nom | 5.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 600kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| 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 | 8542.39.00.90 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input and output voltage range does TPS40195RGYT support for point-of-load designs?
TPS40195RGYT accepts input voltages from 4.5 V to 20 V, with a nominal design point of 12 V, and produces an adjustable output from 1 V to 5 V set by external resistor-divider feedback. This range is ideal for 12 V bus point-of-load converters stepping down to 1.0 V, 1.2 V, 1.8 V, 2.5 V, or 3.3 V rails commonly required by FPGAs, processors, and DDR memory in industrial and telecom applications.
Why does TPS40195RGYT use external MOSFETs instead of integrating them, and what are the benefits?
By using external N-channel synchronous MOSFETs, TPS40195RGYT allows engineers to select FETs optimized for the specific output current, switching frequency, and thermal environment of their design. A controller driving a pair of 30 V / 30 A rated MOSFETs can deliver far more output current than an integrated solution, while the flexibility to choose FETs with lower Rds(on) at 5 V gate drive improves efficiency at loads above 5 A, which integrated converters typically cannot match.
How does voltage-mode PWM control in TPS40195RGYT compare to current-mode control for FPGA power supplies?
Voltage-mode PWM control in TPS40195RGYT compares the output voltage directly to a reference and adjusts duty cycle accordingly, providing excellent DC regulation and noise immunity without the current-sense resistor or transformer required by current-mode designs. For FPGA core supplies needing tight ±2% regulation over fast load transients from 0 A to 20 A, a well-compensated voltage-mode loop with the TPS40195RGYT's wide bandwidth error amplifier achieves comparable transient performance while simplifying the feedback network.
What switching frequency range does TPS40195RGYT support and how does it affect inductor selection?
TPS40195RGYT supports an adjustable switching frequency typically set by a single resistor from approximately 100 kHz to 600 kHz. Selecting 300 kHz for a 12 V to 1.8 V, 10 A converter allows use of a 1 µH to 2.2 µH inductor with manageable peak currents, while 600 kHz operation reduces inductor size to under 1 µH at the cost of slightly higher switching losses in the external MOSFETs. This flexibility allows designers to optimize the efficiency-versus-size tradeoff for their specific PCB space and thermal budget.
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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+ | $3.0840 | $30.84 |
| 25+ | $2.8348 | $70.87 |
| 100+ | $2.5609 | $256.09 |
| 500+ | $1.8700 | $935.00 |
| 1000+ | $1.7700 | $1770.00 |
| 10000+ | $1.6600 | $16600.00 |
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