TPS51385RJNR
Power Management
Technical Specifications
| Type | Description |
|---|---|
| Output Type | Adjustable |
| Output Current | 7 A |
| Function | Step-down type |
| Switching Freq Hz | 1 MHz |
| Channels | 1 |
| Quiescent Current | 84 µA |
| Switch Tube (built-in/external) | Built-in |
| Type | Description |
|---|---|
| Operating Temperature | -40°C~+125°C@(TJ) |
| Features | Adjustable soft-start;Light load efficient mode;Operating status indication;Protection latch;Cycle-by-cycle current limiting;Output discharge;Built-in LDO regulator |
| Topology | Buck |
| Supply Voltage | 4.5V~24V |
| Output Voltage | 600mV~5.5V |
| Package / Case | VQFN-HR-12(3x2) |
Product Introduction
The TPS51385 is a monolithic, 7-A, synchronous buck converter with adaptive on-time D-CAP3 control mode. Integrated low RDS(on) power MOSFETs enable high efficiency and offer ease-of-use with minimum external component count for space-constrained power systems. Features include an accurate reference voltage, fast load transient response, autoskip mode operation for light load efficiency, OOA light load operation with >25-kHz switching frequency, DCAP3 control mode with good line, load regulation, and does not require external compensation.
The TPS51385 provides complete protection OVP, UVP, OCP, OTP and UVLO. The device is combined power-good signal and output discharge function.
The TPS51385 supports both internal and external soft-start time options. The device has the internal fixed soft-start time 1 ms. If the application needs longer soft-start time, the external SS pin can be used to achieve longer soft-start time by connecting the external capacitor.
The TPS51385 are available in a thermally enhanced 12-pin QFN package and are designed to operate from -40°C to 125°C junction temperature.
Features
- 4.5-V to 24-V input voltage range
- 0.6-V to 5.5-V output voltage range
- Integrated 22-mΩ and 11-mΩ MOSFETs
- Support 7-A continuous IOUT
- 84-μA low quiescent current
- ±1% reference voltage (0.6 V) at 25°C
- ±1.5% reference voltage (0.6 V) at -40°C to 125°C
- 1-MHz switching frequency
- D-CAP3 control mode for fast transient response
- Supports POSCAP and all MLCC output capacitor
- Adjustable soft start and internal 1-ms soft start
- Selectable PSM and Out-of-Audio (OOA) mode under light load and supports on-the-fly change
- Large duty operation support
- Power-good indicator to monitor output voltage
- Latched output OV and UV protection
- Non-latched UVLO and OT protection
- Cycle-by-cycle overcurrent protection
- Built-in output discharge feature
- Small 2.00 mm × 3.00 mm HotRod QFN package
- Pin-to-pin compatible with TPS51386 (24 V, 8 A)
Applications
- Notebook and PC computers
- Ultrabook, tablet computers
- TV and STB, point-of-load (POL)
- Distributed power systems
Datasheet
Alternative Parts
Common TPS51385RJNR alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| 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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