Description
TPS51427RHBR Texas Instruments - Yeehing Electronics
Dual-output synchronous D-CAP synchronous buck controller for notebook power
Pricing (USD)
| Quantity | Unit Price |
| 1 — 99 | 3.474 |
| 100 — 249 | 2.832 |
| 250 — 999 | 2.226 |
| 1,000 + | 0.06 |
The above prices are for reference only.
Specifications
| Manufacturer | Texas Instruments |
| Product Category | Switching Controllers |
| RoHS | Y |
| Number of Outputs | 2 Output |
| Input Voltage | 5.5 V to 28 V |
| Output Voltage | 3.3 V, 5 V, 0.7 V to 4.5 V |
| Output Current | 100 mA |
| Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature | + 85 C |
| Mounting Style | SMD/SMT |
| Package / Case | VQFN-32 |
| Packaging | Reel |
| Operating Temperature Range | - 40 C to + 85 C |
| Series | TPS51427 |
| Type | DC/DC Controller (External Switch) |
| Brand | Texas Instruments |
| Moisture Sensitive | Yes |
| Operating Supply Current | 100 uA |
| Product Type | Switching Controllers |
| Factory Pack Quantity | 3000 |
| Subcategory | PMIC - Power Management ICs |
| Unit Weight | 0.002533 oz |
For more information, please refer to datasheet
Documents
| TPS51427RHBR Datasheet |
More Information
The TPS51427 is a dual synchronous step-down controller designed for notebook and mobile communications applications. This device is part of a low-cost suite of notebook power bus regulators that enables system designs with low external component counts. The TPS51427 includes two pulse-width-modulation (PWM) controllers, SMPS1 and SMPS2. The output of SMPS1 can be adjusted from 0.7 V to 5.9 V, while the output of SMPS2 can be adjusted from 0.5 V to 2.5 V. This device also features a low-dropout (LDO) regulator that provides a 5-V/3.3-V output, or adjustable from 0.7-V to 4.5-V output via LDOREFIN. The fixed-frequency emulated adaptive on-time control supports seamless operation between PWM mode under heavy load conditions and reduced frequency operation at light loads for high-efficiency down to the milliampere range. An integrated boost switch enhances the high-side MOSFET to further improve efficiency. The main control loop is the D-CAP mode that is optimized for low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP. Advanced ramp compensation minimizes jitter without degrading line and load regulation. RDS(on) current sensing methods offers maximum cost saving.
