UCC2803QDRSV Texas Instruments In Stock
UCC2803QDRSV is a high-speed PWM controller IC by Texas Instruments designed for current-mode power supply designs with an oscillator up to 1 MHz and 1 A peak gate drive. Key specs: 8-pin VSON package, 1 MHz maximum switching frequency, 1 A output gate drive current. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode PWM control architecture with up to 1 MHz switching frequency, enabling compact magnetics and faster transient response in DC-DC converters
- 1 A peak totem-pole gate drive output for direct driving of power MOSFETs without external buffer transistors in flyback, boost, and forward converter topologies
- AEC-Q100 qualified (Q-grade) for automotive power supply applications with an 8-pin VSON package for compact, high-density power module designs
Applications
The UCC2803QDRSV is used in automotive DC-DC power modules, point-of-load converters, and isolated flyback supplies where a high-frequency current-mode PWM controller with strong gate drive capability is required. Its 1 MHz oscillator frequency reduces inductance and capacitance values, shrinking the magnetics footprint in space-constrained automotive ECU power stages. It is also suitable for industrial switching regulators and telecom power supplies needing fast transient response and reliable AEC-Q100 qualified operation.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UCC2803QDRSV:
Switching Controller, Current-mode, 1A, 1000kHz Switching Freq-Max, BICMOS, PDSO8
Frequently Asked Questions
What is the maximum switching frequency of the UCC2803QDRSV, and how does this affect power supply magnetics size?
The UCC2803QDRSV supports oscillator frequencies up to 1 MHz, which allows the power transformer and output inductors to be reduced in size by roughly an order of magnitude compared to a 100 kHz design. At 500 kHz, for example, a 10 µH output choke can replace a 100 µH choke in an equivalent topology, significantly reducing PCB area and total converter height in automotive ECU power stages.
How much gate drive current can the UCC2803QDRSV deliver, and is an external MOSFET driver needed for high-power designs?
The UCC2803QDRSV provides a 1 A peak totem-pole output gate drive, sufficient to directly drive most logic-level and standard gate-charge MOSFETs without an additional buffer. For MOSFETs with gate charge above approximately 100 nC at 500 kHz, an external 2 A or 4 A gate driver such as the UCC27524 may still be needed to maintain acceptable switching rise and fall times below 50 ns.
Is the UCC2803QDRSV AEC-Q100 qualified, and what automotive power supply topologies does it support?
Yes, the UCC2803QDRSV is AEC-Q100 qualified, meeting automotive reliability and qualification requirements for use in vehicles. It supports current-mode control in flyback, forward, boost, and buck-boost topologies commonly used in 12 V to 48 V automotive battery management systems, ADAS sensor power rails, and infotainment unit DC-DC converters where robustness across -40°C to +125°C is mandatory.
What package does the UCC2803QDRSV use, and how does its VSON footprint compare to a standard SOIC-8 for high-density boards?
The UCC2803QDRSV comes in an 8-pin VSON package, which occupies approximately 2 mm × 2 mm of PCB area — roughly 80% less than a standard SOIC-8 that measures about 5 mm × 4 mm. The VSON's exposed thermal pad also reduces package thermal resistance, helping dissipate the internal bias supply and gate drive losses in compact automotive power modules where thermal management space is limited.
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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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