TPS563900DAP
Active18V INPUT, 3.5A/3.5A DUAL SYNCHRONOUS STEP-DOWN REGULATOR WITH VOLTAGE SCALING
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TPS563900DAP
Active18V INPUT, 3.5A/3.5A DUAL SYNCHRONOUS STEP-DOWN REGULATOR WITH VOLTAGE SCALING
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS563900DAP |
|---|---|
| Current - Output | 3.5 A |
| Frequency - Switching [Max] | 1.6 MHz |
| Frequency - Switching [Min] | 200 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 85 C |
| Operating Temperature [Min] | -40 ¯C |
| Output Configuration | Positive |
| Output Type | Adjustable (Programmable) |
| Package / Case | 32-PowerTSSOP |
| Package / Case [x] | 0.24 in |
| Package / Case [y] | 6.1 mm |
| Supplier Device Package | 32-HTSSOP |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 18 V |
| Voltage - Input (Min) [Min] | 4.5 V |
| Voltage - Output (Max) [Max] | 1.95 V |
| Voltage - Output (Min/Fixed) | 0.68 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 0 | $ 3.33 | |
| Tube | 276 | $ 3.69 | ||
| Texas Instruments | TUBE | 1 | $ 3.63 | |
| 100 | $ 2.96 | |||
| 250 | $ 2.33 | |||
| 1000 | $ 1.98 | |||
Description
General part information
TPS563900 Series
The TPS563900 device is a monolithic dual-synchronous buck converter with a wide 4.5-V to 18-V operating input-voltage range that can operate in5-, 9-, 12-, or 15-V bus voltages and battery chemistries. Constant-frequency peak-current mode control simplifies the loop compensation and provides fast transient response.
External feedback resistors can be used to set the initial start-up voltage for each buck converter in the TPS563900 device. The feedback voltage reference for this start-up option is 0.6 V. When the voltage-identification (VID) DAC is updated through the I2C, the buck converter switches the feedback resistors from external to internal feedback resistors. The output voltage in each buck is programmable from 0.68 V to 1.95 V with 10-mV steps by I2C-controlled 7-bit VID.
Each buck converter in the TPS563900 device can also be I2C controlled for enabling and disabling the output voltage, reading the output voltage, setting the pulse skipping mode, and reading the power good status and the warning of die temperature.
Documents
Technical documentation and resources