TPS53128PW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TPS53128PW is a dual synchronous step-down switching controller from Texas Instruments in a 24-pin TSSOP package, supporting 4.5 V to 24 V input range and adjustable output from 0.76 V to 5.5 V via voltage-mode PWM control. It integrates two independent controllers for powering dual processor or FPGA core rails in telecom, server, and industrial applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Datasheet
- TPS53128PW Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.6900(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS53128PW?
- Dual voltage-mode PWM switching controller
- Input voltage range: 4.5 V to 24 V
- Adjustable output: 0.76 V to 5.5 V
- 24-pin TSSOP package for compact layout
- Independent operation of each controller channel
- Supports synchronous rectification for high efficiency
What is TPS53128PW used for?
The TPS53128PW is used in server motherboards and FPGA evaluation boards to power two independent processor or memory core rails from a single 12 V or 5 V bus, reducing component count compared to discrete solutions. It is also suited for telecom line cards and industrial motor control boards where regulated dual-rail power delivery from a wide input bus is required.
What are the specifications of TPS53128PW?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | ALSO OPERATES IN ADJUSTABLE MODE FROM 0.76 TO 5.5 V |
| Analog IC - Other Type | DUAL SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 24V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 5.5V |
| JESD-30 Code | R-PDSO-G24 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 2 |
| Output Current-Max | 15A |
| Output Voltage-Max | 5.5V |
| Output Voltage-Min | 0.76V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.8mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 350kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Where can I find the TPS53128PW datasheet?
TPS53128PW Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS53128PW?
Compatible alternatives and drop-in replacements for TPS53128PW:
Dual Switching Controller, Voltage-mode, 15A, 350kHz Switching Freq-Max, BICMOS, PDSO24
Dual Switching Controller, Voltage-mode, 15A, 350kHz Switching Freq-Max, BICMOS, PDSO24
Dual Switching Controller, Voltage-mode, 15A, 350kHz Switching Freq-Max, BICMOS, PDSO24
Frequently Asked Questions
What input voltage range does the TPS53128PW support?
The TPS53128PW accepts an input voltage from 4.5 V to 24 V, covering standard 5 V and 12 V power bus rails commonly found in servers, telecom line cards, and industrial equipment. This wide range allows the same controller to be used across different platform power architectures without hardware redesign.
How is the output voltage of the TPS53128PW set and what range is achievable?
The TPS53128PW output voltage is set by an external resistor divider connected to the feedback pin, enabling adjustment from 0.76 V to 5.5 V per channel. This range covers both core voltages for modern FPGAs typically at 0.9 V to 1.0 V and peripheral rails at 3.3 V or 5 V on the same board using a single dual-controller IC.
For a dual-FPGA power design, how does the TPS53128PW simplify the BOM?
By integrating 2 independent voltage-mode PWM controllers in a single 24-pin TSSOP package, the TPS53128PW replaces two separate single-phase controllers, cutting the regulator IC count in half. Each channel drives its own synchronous buck stage, and the shared gate-drive and reference circuitry reduce supporting passive components by approximately 30% compared to discrete implementations.
What control method does the TPS53128PW use and how does it affect transient response?
The TPS53128PW uses voltage-mode PWM control with a type-III compensation network, providing a fixed switching frequency that simplifies EMI filter design. Voltage-mode control delivers stable transient response when properly compensated for a given output capacitance, typically recovering to within 1% of the set voltage within 10 µs to 20 µs for a 10 A load step.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $7.6900 | $7.69 |
| 10+ | $5.9450 | $59.45 |
| 55+ | $5.4300 | $298.65 |
| 60+ | $5.1855 | $311.13 |
| 500+ | $3.9100 | $1955.00 |
| 1000+ | $3.6900 | $3690.00 |
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