TPS5450DDAR
Voltage Regulators - DC DC Switching Regulators
Technical Specifications
| Type | Description |
|---|---|
| Output Type | Adjustable |
| Output Voltage | 16.27 V |
| Output Current | 5 A |
| Function | Step-down type |
| Working Voltage V | 20.75 V |
| Switching Freq Hz | 500 kHz |
| Channels | 1 |
| Type | Description |
|---|---|
| Iq A | 0.003 A |
| Switch tube (built-in/external) | Built-in |
| Operating Temp | -40°C ~ +125°C @(TJ) |
| Features | Cycle-by-cycle current limiting;Hiccup current limiting;Overcurrent Protection |
| Topology | Buck |
| Package / Case | SOP-8-EP-150mil |
Product Introduction
The TPS5450 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 TPS5450 feedback loop is internally compensated.
The TPS5450 device is available in a thermallyenhanced, 8-pin SOIC PowerPAD package.
Features
- Wide Input Voltage Range: 5.5 V to 36 V
- Up to 5-A Continuous (6-A Peak) Output Current
- High Efficiency Greater Than 90% 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 Part Count
- Fixed 500-kHz Switching Frequency for Small Filter Size
- 18–μA Shutdown Supply Current
- Improved Line Regulation and Transient Response by Input Voltage Feed Forward
- 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 SOIC PowerPAD Package
Applications
- - High Density Point-of-Load Regulators - LCD Displays, Plasma Displays - Battery Chargers - 12-V and 24-V Distributed Power Systems
Datasheet
Alternative Parts
Common TPS5450DDAR alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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