TPS53128RGET
Active4.5-V TO 24-V, SYNCHRONOUS DUAL-D-CAP2 BUCK CONTROLLER
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TPS53128RGET
Active4.5-V TO 24-V, SYNCHRONOUS DUAL-D-CAP2 BUCK CONTROLLER
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS53128RGET |
|---|---|
| Clock Sync | False |
| Control Features | Current Limit, Soft Start, Enable |
| Frequency - Switching | 350 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 Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 24-VFQFN Exposed Pad |
| Supplier Device Package | 24-VQFN (4x4) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 24 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 4.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 6.09 | |
| 10 | $ 5.50 | |||
| 25 | $ 5.25 | |||
| 100 | $ 4.56 | |||
| Digi-Reel® | 1 | $ 6.09 | ||
| 10 | $ 5.50 | |||
| 25 | $ 5.25 | |||
| 100 | $ 4.56 | |||
| Tape & Reel (TR) | 250 | $ 3.17 | ||
| Texas Instruments | SMALL T&R | 1 | $ 5.28 | |
| 100 | $ 4.30 | |||
| 250 | $ 3.38 | |||
| 1000 | $ 2.87 | |||
Description
General part information
TPS53128 Series
The TPS53128 is a dual, adaptive on-time D-CAP2 mode synchronous buck controller. The part enables system designers to cost effectively complete the suite of various end equipment's power bus regulators with a low external component count and low standby consumption. The main control loop for the TPS53128 uses the D-CAP2 Mode topology which provides a very fast transient response with no external component.
The TPS53128 also has a proprietary circuit that enables the device to adapt not only low equivalent series resistance (ESR) output capacitors such as POSCAP/SP-CAP, but also ceramic capacitor. The fixed frequency emulated adaptive on-time control supports seamless operation between PWM mode at heavy load condition and reduced frequency operation at light load for high efficiency down to milliampere range. The part provides a convenient and efficient operation with conversion voltages from 4.5 V to 24 V and output voltage from 0.76 V to 5.5 V.
The TPS53128 is available in 4-mm x 4-mm 24 pin QFN (RGE) or 24 pin TSSOP (PW) packages, and is specified from –40°C to 85°C ambient temperature range.
Documents
Technical documentation and resources
