ULN2803ADWR
♠ Product Description
| Product Attribute | Attribute Value |
| Manufacturer: | Texas Instruments |
| Product Category: | Switching Voltage Regulators |
| RoHS: | Details |
| Mounting Style: | SMD/SMT |
| Package / Case: | VQFN-40 |
| Topology: | Buck |
| Output Voltage: | 800 mV to 17 V |
| Output Current: | 3 A |
| Number of Outputs: | 3 Output |
| Input Voltage, Min: | 4.5 V |
| Input Voltage, Max: | 18 V |
| Quiescent Current: | 1 mA |
| Switching Frequency: | 300 kHz to 2.2 MHz |
| Minimum Operating Temperature: | - 40 C |
| Maximum Operating Temperature: | + 125 C |
| Series: | TPS65251 |
| Packaging: | Reel |
| Packaging: | Cut Tape |
| Packaging: | MouseReel |
| Brand: | Texas Instruments |
| Development Kit: | TPS65251EVM |
| Input Voltage: | 4.5 V to 18 V |
| Moisture Sensitive: | Yes |
| Operating Supply Current: | 20 mA |
| Product Type: | Switching Voltage Regulators |
| Factory Pack Quantity: | 2500 |
| Subcategory: | PMIC - Power Management ICs |
| Unit Weight: | 0.003527 oz |
♠ TPS65251 4.5-V to 18-V Input, High-Current, Synchronous Step-Down Three Buck Switcher With Integrated FET
The TPS65251 features three synchronous wide input range high efficiency buck converters. The converters are designed to simplify its application while giving the designer the option to optimize their usage according to the target application.
The converters can operate in 5-, 9-, 12- or 15-V systems and have integrated power transistors. The output voltage can be set externally using a resistor divider to any value between 0.8 V and close to the input supply. Each converter features enable pin that allows a delayed start-up for sequencing purposes, soft-start pin that allows adjustable soft-start time by choosing the soft-start capacitor, and a current limit (RLIMx) pin that enables designer to adjust current limit by selecting an external resistor and optimize the choice of inductor. The current mode control allows a simple RC compensation.
The switching frequency of the converters can either be set with an external resistor connected to ROSC pin or can be synchronized to an external clock connected to SYNC pin if needed. The switching regulators are designed to operate from 300 kHz to 2.2 MHz. 180° out of phase operation between Buck 1 and Buck 2, 3 (Buck 2 and 3 run in phase) minimizes the input filter requirements.
• Provides system-level ESD protection for lowvoltage I/O interface
• IEC 61000-4-2 level 4 ESD protection
– ±30 kV contact discharge
– ±30 kV air-gap discharge
• IEC 61000-4-5 surge: 6 A (8/20 µs)
• I/O capacitance 12 pF (typical)
• RDYN 0.4 Ω (typical)
• DC breakdown voltage ±6 V (minimum)
• Ultralow leakage current 100 nA (maximum)
• 10-V clamping voltage (maximum at IPP = 1 A)
• Industrial temperature range: –40°C to 125°C
• Small 0402 footprint (1 mm × 0.6 mm × 0.5 mm)
• Industry standard SOD-523 package (0.8 mm × 1.2 mm)
• End equipment:
– Portable devices
– Wearables
– Set-top boxes
– Electronic point of sale (EPOS)
– Appliances
– Building automation
• Interfaces:
– Audio lines
– Push-buttons
– General-purpose input or output (GPIO)
