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Texas Instruments TPS56100PWPR
- Part No.:
- TPS56100PWPR
- Manufacturer:
- Texas Instruments
- Category:
- Special Purpose Regulators
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS56100PWPR.pdf
- Description:
- IC REG CTRLR 1OUT 28HTSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS56100PWPR from Texas Instruments is a synchronous-buck DC-DC controller IC designed for DSP power supply regulation, supporting output voltages from 1.3 V to 2.6 V via 5-bit VID programming (VP0–VP4), delivering up to 30 A load current with >90% efficiency, and featuring hysteretic control for <300 ns propagation delay and fast transient response in C6000/C5000 systems.
For engineers reviewing the TPS56100PWPR datasheet, TPS56100PWPR pinout, TPS56100PWPR application, or TPS56100PWPR equivalent, key selection considerations include its 28-pin TSSOP PowerPAD package, programmable hysteresis (±30 mV window), dual 2-A MOSFET drivers (high-side and low-side), integrated overvoltage (115% VREF) and overcurrent (100 mV OCP threshold) protection, and power-good monitoring with 7% undervoltage tolerance.
Technical Context
The TPS56100PWPR implements a fast hysteretic voltage-mode control architecture with comparator propagation delay under 300 ns, enabling rapid response to load transients in high-performance DSP applications. Its internal 5-bit DAC sets reference voltage (1.3–2.6 V ±1.5%), buffered at VREFB (±2% accuracy), and drives a programmable hysteresis network via external resistors on VHYST.
It integrates dual independent gate drivers: a 2-A high-side driver configurable as ground-referenced or bootstrap-driven (with internal Schottky diode), and a 2-A low-side driver with crowbar mode support via LODRV. Deadtime control prevents shoot-through by enforcing turn-on sequencing based on phase-node voltage (Vphase < 2 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | 1.3 V to 2.6 V, set digitally via VP0–VP4 pins per Intel VRM 8.3 code table; supports 50-mV steps down to 1.3 V. |
| Control Method | Hysteretic regulation with ≤300 ns VSENSE-to-driver propagation delay; hysteresis window adjustable from 0 to 60 mV via VREFB/VHYST resistor divider. |
| Driver Output Current | 2 A peak sink/source per driver (high-side and low-side); supports parallel MOSFETs for ≥30-A total load capability. |
| Protection Features | Overvoltage lockout at 115% VREF (±3% tolerance), overcurrent shutdown at 100 mV OCP input, power-good output active low below 93% VREF. |
| Supply Current | 3 mA typical operating quiescent current; 90 µA standby current when inhibited or during UVLO. |
| Package | 28-pin TSSOP PowerPAD (PWP), thermally enhanced for high-power density without external heatsink. |
| Operating Junction Temp | 0°C to +125°C; includes thermal shutdown at 160°C with 10°C hysteresis. |
Pinout & Package
TPS56100PWPR is housed in a 28-pin TSSOP PowerPAD (PWP) package with exposed thermal pad for enhanced heat dissipation. Pin numbering follows standard top-view orientation with Pin 1 at bottom-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IOUT | Current-sense output | Provides voltage proportional to high-side FET Rds(on) × IOUT (2×Rds(on)×IOUT); used for current monitoring or OCP threshold setting. |
| OCP | Overcurrent protection input | Accepts voltage divider from IOUT to ANAGND; trips at 100 mV to disable drivers and latch fault. |
| VHYST | Hysteresis set point | Defines comparator hysteresis window as 2×(VREFB − VHYST); enables precise ripple control independent of VREF. |
| VREFB | Buffered reference output | Stable ±2% replica of VREF; supplies bias current for slowstart capacitor and hysteresis divider; max 500 µA sourcing capacity. |
| SLOWST | Slow-start timing node | Capacitor-connected node charged by current proportional to VREFB; ensures consistent soft-start time across all output voltage settings. |
| PWRGD | Power-good open-drain output | Pulled low when output falls below 93% VREF; provides system-level power sequencing signal with noise-immune deglitching. |
| VP0–VP4 | Digital voltage programming inputs | TTL-compatible inputs (internally pulled up to 5 V); define 32 possible output voltages per Table 1, including "No CPU" state. |
| HIGHDR / LOWDR | Gate drive outputs | 2-A peak-current drivers for n-channel high-side and synchronous rectifier FETs; support bootstrap or ground-referenced configurations. |
| BOOT / BOOTLO | Bootstrap supply interface | BOOT connects to bootstrap capacitor; BOOTLO ties to phase node (floating drive) or DRVGND (ground-referenced drive). |
| INHIBIT | Enable/disable control | TTL-compatible input; disables drivers and discharges slowstart capacitor when low; start threshold = 2.1 V with 100 mV hysteresis. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Output Voltage | 1.3 V to 2.6 V in 50-mV increments via 5-bit VID interface (VP0–VP4), compliant with Intel VRM 8.3 for DSP core supplies. |
| Hysteretic Fast-Response Control | ≤300 ns propagation delay from VSENSE to driver outputs enables sub-microsecond transient recovery in C6000-class DSP loads. |
| Dual 2-A Gate Drivers | Independent high-side and low-side drivers each deliver 2 A peak current; support parallel MOSFETs and configurable bootstrap/ground-referenced operation. |
| Integrated Protection Suite | Includes overvoltage (115% VREF), overcurrent (100 mV OCP), thermal shutdown (160°C), and power-good (93% VREF) with deglitched comparators. |
| Accurate Current Sensing | VDS-based high-side sensing with sample/hold circuit (IOUT/IOUTLO); supports optional external sense resistor for higher accuracy. |
| Thermally Optimized Package | 28-pin TSSOP PowerPAD enhances thermal performance vs. standard TSSOP; eliminates need for bulky heatsinks in high-current designs. |
Applications
| DSP Core Power Supply | Multi-Core DSP Platform |
|---|---|
|
Use Scenario: Regulating CVDD supply for TI TMS320C6000-series DSPs requiring tight voltage tolerance and fast load-step response. IC Role / Device Role / Timing Role: Primary buck controller managing output voltage, current sensing, and gate drive for high-efficiency synchronous rectification. Use Value: Achieves >90% efficiency at 3–30 A loads while maintaining ±1.5% reference accuracy and <300 ns transient response critical for real-time signal processing. |
Use Scenario: Powering multiple C5000-family DSPs on a single board with coordinated power sequencing and shared thermal management. IC Role / Device Role / Timing Role: Centralized voltage controller with INHIBIT input for synchronized startup/shutdown and PWRGD for inter-device power-good handshaking. Use Value: Enables scalable multi-DSP designs using one TPS56100PWPR per rail, leveraging programmable VID codes and robust OVP/OCP to prevent cascading faults. |
| Industrial Motor Control DSP | Telecom Baseband Processor |
|
Use Scenario: Supplying core voltage to DSPs in servo drives where EMI resilience and thermal stability under variable load are essential. IC Role / Device Role / Timing Role: Hysteretic controller with low-noise VSENSE filtering and deglitched protection comparators for reliable operation in noisy industrial environments. Use Value: Maintains stable 1.8 V output despite 10-A load steps and ambient temperatures up to +125°C, supported by PowerPAD thermal enhancement. |
Use Scenario: Delivering tightly regulated 1.5 V core supply to baseband processors in wireless infrastructure equipment with strict power-good timing requirements. IC Role / Device Role / Timing Role: Precision voltage regulator with 7% PWRGD window and 100-ns current-sense response to meet telecom power sequencing standards. Use Value: Ensures deterministic boot-up and fault isolation in multi-rail telecom systems via open-drain PWRGD and latchable OCP/OVP events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous-buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS56200PWPR | Dual-channel version with identical 1.3–2.6 V VID range, same 28-pin PWP package, but adds second independent controller channel and shared VID bus. | Required for dual-rail DSP systems (e.g., separate CVDD and I/O supply) where space-constrained layout favors single-package integration. | Select TPS56200PWPR only when two synchronized, independently programmable rails are needed; not drop-in compatible due to doubled pin count and shared control logic. |
| UCC28220D | Voltage-mode PWM controller (not hysteretic); fixed 5-V output or adjustable via external resistor; lacks VID interface, PWRGD, and integrated current sensing. | Suitable for non-DSP general-purpose buck converters where cost sensitivity outweighs fast transient needs and digital voltage programming. | Choose UCC28220D for simpler, lower-cost 5-V or fixed-output applications; avoid for C6000/C5000 systems requiring VID coding, fast response, or accurate current monitoring. |
Compared with TPS56100PWPR, TPS56200PWPR offers dual-rail capability at the expense of single-rail simplicity and pin compatibility, while UCC28220D trades advanced DSP-specific features (VID, hysteretic control, PWRGD) for broader general-purpose use and lower BOM cost.
Availability
TPS56100PWPR is available at Aetrix Electronics and suitable for DSP power supply design, industrial motor control systems, telecom baseband processor regulation, and multi-core embedded platforms requiring stable component supply and long-term lifecycle support.
Supply support for TPS56100PWPR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in high-efficiency DC-DC conversion and DSP power solutions.
The TPS56100PWPR belongs to TI's high-performance synchronous-buck controller product line, engineered specifically for demanding DSP core voltage regulation with fast transient response, programmable output, and integrated protection.
FAQ
What is the maximum output current supported by the TPS56100PWPR?
The TPS56100PWPR itself is a controller IC and does not deliver current directly; it drives external MOSFETs to support load currents up to 30 A. This is achieved using its dual 2-A gate drivers (HIGHDR and LOWDR) to switch parallel n-channel FETs, with thermal performance enabled by the PowerPAD package.
How does the TPS56100PWPR implement voltage programming?
The TPS56100PWPR uses five TTL-compatible digital inputs (VP0–VP4) to select output voltage from 1.3 V to 2.6 V in 50-mV steps, following Intel VRM 8.3 coding. Internally, these inputs feed a 5-bit DAC and temperature-compensated bandgap reference, yielding ±1.5% cumulative accuracy across 0°C to +125°C.
Does the TPS56100PWPR support both bootstrap and ground-referenced high-side drive?
Yes - the TPS56100PWPR high-side driver (HIGHDR) supports either configuration. For bootstrap operation, connect BOOTLO to the phase node and use an external capacitor between BOOT and BOOTLO. For ground-referenced drive, tie BOOTLO to DRVGND and supply BOOT from a dedicated 5-V rail; the internal Schottky diode aids bootstrap efficiency.
What protection features are integrated into the TPS56100PWPR?
The TPS56100PWPR integrates overvoltage protection (trip at 115% VREF), overcurrent protection (100 mV OCP threshold), thermal shutdown (160°C), power-good monitoring (93% VREF undervoltage), and short-circuit protection with deglitched comparators (3-µs filter). All fault conditions latch until INHIBIT is cycled or VCC drops below UVLO.
Can the TPS56100PWPR be used with non-DSP loads?
Yes - while optimized for TI C6000/C5000 DSPs, the TPS56100PWPR is applicable to any low-voltage, high-current synchronous buck application requiring programmable output, fast transient response, and robust protection. Its 1.3–2.6 V range, hysteretic control, and 2-A drivers suit FPGA cores, ASICs, and other digital processors needing precise, efficient regulation.
TPS56100PWPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Controller, C6x, C54x DSP
- Voltage - Input:
- 4.5V ~ 6V
- Number of Outputs:
- 1
- Voltage - Output:
- 1.3V ~ 2.6V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-HTSSOP
TPS56100PWPR FAQ
1.How can I place an order for TPS56100PWPR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS56100PWPR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS56100PWPR reliable?
The price and inventory of TPS56100PWPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS56100PWPR is usually 5 days.
3.What payment methods are accepted for TPS56100PWPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS56100PWPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS56100PWPR?
TPS56100PWPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS56100PWPR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS56100PWPR?
For technical support, including TPS56100PWPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS56100PWPR requirements.
6.How does Aetrix verify that TPS56100PWPR is sourced from the original manufacturer or authorized distributors?
All TPS56100PWPR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS56100PWPR meets industry standards.
7.What is the process for return or replacement of TPS56100PWPR?
All TPS56100PWPR units undergo pre-shipment inspection (PSI). If there is an issue with TPS56100PWPR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS56100PWPR part is unused and in its original packaging.
Return procedure for TPS56100PWPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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