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TPS54327DDAR Switching Regulator IC 3A Reg Buck Adjustable Step Down Converter
Applications
• Consumer: set-top box, DVD, LCD displays
• Industrial and car audio power supplies
• Battery chargers, high-power LED supply
• 12-V and 24-V distributed power systems
Specifications
Product Attribute | Attribute Value |
---|---|
Texas Instruments | |
Product Category: | Switching Voltage Regulators |
SMD/SMT | |
SO-PowerPad-8 | |
Buck | |
760 mV to 7 V | |
3 A | |
1 Output | |
4.5 V | |
18 V | |
1.8 uA | |
700 kHz | |
- 40 C | |
+ 85 C | |
Reel | |
Input Voltage: | 4.5 V to 18 V |
Operating Supply Current: | 800 uA |
Product: | Voltage Regulators |
Product Type: | Switching Voltage Regulators |
Subcategory: | PMIC - Power Management ICs |
Type: | Step Down Converter |
Description
TThe TPS543x is a high-output-current PWM converter that integrates a low-resistance, high-side N-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions; an undervoltagelockout circuit to prevent start-up until the input voltage reaches 5.5 V; an internally set slow-start circuit to limit inrush currents; and a voltage feedforward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18 μA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS543x feedback loop is internally compensated. The TPS5431 is intended to operate from power rails up to 23 V. The TPS5430 regulates a wide variety of power sources including 24 V bus.
The TPS543x device is available in a thermally enhanced, easy to use 8-pin SOIC PowerPAD™ package. TI provides evaluation modules and the Designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.
Features
• Wide input voltage range: – TPS5430: 5.5 V to 36 V – TPS5431: 5.5 V to 23 V
• Up to 3-A continuous (4-A peak) output current
• High efficiency up to 95% enabled by 110-mΩ integrated MOSFET switch
• Wide output voltage range: adjustable down to 1.22 V with 1.5% initial accuracy
• Internal compensation minimizes external parts count
• Fixed 500-kHz switching frequency for small filter size
• Improved line regulation and transient response by input voltage feedforward
• System protected by overcurrent limiting, overvoltage protection, and thermal shutdown
• –40°C to 125°C operating junction temperature range
• Available in small thermally enhanced 8-pin SO PowerPAD package
Trading Guides
Shipping | Delivery period |
For in-stock parts, orders are estimated to ship out in 3 days.
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Shipping rates |
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Shipping option |
We provide DHL, FedEx, EMS, SF Express, and Registered Air Mail international shipping.
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Shipping tracking |
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Returning warranty | Returning |
Returns are normally accepted when completed within 30 days from date of shipment.Parts should be unused and in original packaging.Customer has to take charge for the shipping.
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Warranty |
All Retechip purchases come with a 30-day money-back return policy, This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation
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