TPS40200SHKQ Texas Instruments Integrated Circuit (SOP) In Stock
The TPS40200SHKQ is a high-temperature, non-synchronous voltage-mode PWM buck DC/DC switching controller by Texas Instruments. Key specs: 4.5 V to 52 V input range, programmable frequency, 8-pin SOIC package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Pin Count
- 999
- Lifecycle
- ACTIVE
- Datasheet
- TPS40200SHKQ Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 210.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide 4.5 V to 52 V input voltage range enables use across 5 V, 12 V, 24 V, and 48 V power bus architectures in industrial and automotive systems
- Voltage-mode PWM control with high-temperature rating supports reliable switching regulation in harsh thermal environments up to 125 °C
- Non-synchronous buck controller topology reduces external component cost by requiring only a single N-channel MOSFET and a catch diode for step-down conversion
Applications
The TPS40200SHKQ is designed for non-synchronous step-down DC/DC conversion in industrial power supplies, 48 V telecom backplanes, and automotive power distribution modules where input voltages up to 52 V must be regulated to lower rails. Its wide input range and high-temperature tolerance make it suitable for motor drive power stages, programmable logic controller (PLC) supply rails, and rugged embedded computing systems operating in ambient temperatures up to 125 °C. It is also used in point-of-load converters for 24 V industrial sensor nodes and field instrumentation requiring programmable output voltage.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 52V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-CDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 3A |
| Output Voltage-Max | 46V |
| Output Voltage-Min | 0.7V |
| Package Body Material | CERAMIC, METAL-SEALED COFIRED |
| Package Equivalence Code | SOP8,.45 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Surface Mount | YES |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 500kHz |
| Temperature Grade | MILITARY |
| Terminal Finish | Gold (Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the TPS40200SHKQ support, and which power bus standards does this cover?
The TPS40200SHKQ accepts input voltages from 4.5 V to 52 V, making it compatible with 5 V logic buses, 12 V ATX supplies, 24 V industrial rails, and 48 V telecom or automotive bus architectures. This broad range eliminates the need for multiple controller variants in a product family targeting diverse power standards, reducing inventory and simplifying BOM management.
How does voltage-mode PWM control in the TPS40200SHKQ affect compensation design compared to current-mode controllers?
Voltage-mode PWM control in the TPS40200SHKQ senses only the output voltage for the error signal, requiring a Type III compensation network in the feedback loop to achieve adequate phase margin. Compared to current-mode controllers, voltage-mode simplifies high-voltage current sensing by eliminating a sense resistor or current transformer in the power path, reducing losses at 52 V input by up to several watts while still achieving stable regulation with less than 5% output voltage ripple when properly compensated.
For a 48 V to 12 V industrial converter, what external components does the TPS40200SHKQ require?
A typical 48 V to 12 V non-synchronous buck design using TPS40200SHKQ requires one external N-channel MOSFET rated above 52 V and the target output current, one Schottky catch diode, an output inductor typically in the range of 10 µH to 100 µH, an output capacitor of 100 µF or more for ripple filtering, and resistors for frequency setting and feedback compensation. The 8-pin SOIC footprint minimizes PCB area, and the total external component count is typically 8 to 12 parts.
What temperature rating does the TPS40200SHKQ carry, and in which harsh environments is this relevant?
The TPS40200SHKQ is rated for high-temperature operation up to 125 °C junction temperature, making it suitable for under-hood automotive modules, industrial motor drives, oil and gas field transmitters, and avionics power supplies where ambient temperatures routinely exceed 85 °C. At 125 °C junction limit with a typical 8-pin SOIC thermal resistance of around 100 °C/W, the controller can dissipate approximately 400 mW without exceeding its rated operating temperature at a 85 °C ambient.
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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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