TPS5211PWPR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TPS5211PWPR is a hysteretic current-mode switching controller from Texas Instruments designed for a 12 V nominal input (11.4 V to 13 V) and housed in a 28-pin TSSOP package. It provides single-output DC-DC regulation with fast transient response and targets telecom and server point-of-load power supplies.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- OBSOLETE
- Datasheet
- TPS5211PWPR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS5211PWPR?
- Hysteretic current-mode control for fast transient response
- Input voltage range: 11.4 V to 13 V (12 V nominal bus)
- Single-output switching controller architecture
- 28-pin TSSOP package (R-PDSO-G28) for compact PCB layout
- RoHS-compliant e4 lead-free construction
- Current-mode control simplifies compensation loop design
- Suitable for high-frequency synchronous buck regulator designs
- Optimized for 12 V telecom and server intermediate bus applications
What is TPS5211PWPR used for?
TPS5211PWPR is designed for point-of-load DC-DC conversion on 12 V telecom bus systems, server motherboards, and networking equipment where fast load transient response is critical. Its hysteretic current-mode architecture reduces output filter size while maintaining tight regulation on 12 V inputs, making it a practical choice for server memory power rails, FPGA core supply regulators, and base station power distribution boards. The 28-pin TSSOP footprint enables integration into space-limited rack-mount and blade-server power stages.
What are the specifications of TPS5211PWPR?
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | HYSTERETIC CURRENT MODE |
| Input Voltage-Max | 13V |
| Input Voltage-Min | 11.4V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 2A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP28,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | PUSH-PULL |
| Switching Frequency-Max | 700kHz |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the TPS5211PWPR datasheet?
TPS5211PWPR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS5211PWPR?
Compatible alternatives and drop-in replacements for TPS5211PWPR:
Switching Controller, Current-mode, 2A, 1000kHz Switching Freq-Max, PDSO28
Frequently Asked Questions
Why does TPS5211PWPR use hysteretic current-mode control rather than conventional voltage-mode PWM for 12 V bus regulation?
Hysteretic current-mode control on TPS5211PWPR eliminates the need for a type-III compensation network required in voltage-mode PWM designs, simplifying external component selection. The control loop inherently responds to inductor current changes on a cycle-by-cycle basis, achieving faster load transient response than voltage-mode architectures. For a 12 V nominal input, this means the output rail recovers within microseconds during sudden load steps common in server or telecom switching events.
What input voltage tolerance does TPS5211PWPR support, and how does this affect 12 V telecom system design?
TPS5211PWPR operates from 11.4 V to 13 V, covering the ±5% variation typical of 12 V ATCA and AdvancedTCA telecom bus standards. This narrow range is intentional for point-of-load controllers optimized around a single intermediate bus voltage, where tight line regulation over a 1.6 V window ensures predictable switching frequency and duty cycle. Designers should verify that the input bus stays within this 11.4 V to 13 V band under all load and temperature conditions.
How does the 28-pin TSSOP package of TPS5211PWPR compare to larger power module packages for server board integration?
The 28-pin TSSOP (R-PDSO-G28) package keeps the controller footprint under 10 mm x 5 mm on the PCB, significantly smaller than discrete power module packages that often exceed 15 mm x 12 mm. This size advantage allows TPS5211PWPR to be placed close to the load on a server motherboard, reducing parasitic inductance on the 12 V input power path and improving high-frequency switching noise immunity. External MOSFETs and passives add area but remain controllable within a compact layout.
Can TPS5211PWPR be used in multi-phase configurations to supply higher output currents to FPGA core rails?
TPS5211PWPR is a single-channel switching controller, so multi-phase operation requires multiple TPS5211PWPR devices with interleaved clock phasing. For FPGA core supplies demanding more than 20 A to 30 A from a 12 V input, a 2-phase or 4-phase arrangement with separate controllers reduces input ripple current by the number of phases and spreads thermal load across multiple power stage MOSFETs. Texas Instruments recommends verifying clock synchronization across phases to keep switching noise within the 11.4 V to 13 V input tolerance band.
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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.
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