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Texas Instruments TPS56100PWPG4
- Part No.:
- TPS56100PWPG4
- Manufacturer:
- Texas Instruments
- Category:
- Special Purpose Regulators
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS56100PWPG4.pdf
- Description:
- IC REG CTRLR 1OUT 28HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,634
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Product details
Overview
TPS56100PWPG4 from Texas Instruments is a synchronous-buck DC-DC controller IC designed for DSP power supply regulation, featuring 5-bit programmable output voltage (1.3 V to 2.6 V), hysteretic control with <300 ns propagation delay, and integrated 2-A high/low-side MOSFET drivers. It delivers >90% efficiency in 3–30 A current-range applications such as TI 'C6000 and 'C5000 DSP systems.
For engineers reviewing the TPS56100PWPG4 datasheet, TPS56100PWPG4 pinout, TPS56100PWPG4 application, or TPS56100PWPG4 equivalent, key selection criteria include its VID-programmable reference accuracy (±1.5%), Power Good open-drain output with 7% undervoltage threshold, and dual-drive capability supporting parallel MOSFET configurations without external gate drivers.
Technical Context
The TPS56100PWPG4 implements a fast hysteretic control architecture with comparator propagation delay under 300 ns and adjustable hysteresis window (up to 60 mV) set via external resistors on VREFB and VHYST. Its internal 5-bit VP decoder supports Intel VRM 8.3–compliant voltage codes and provides buffered reference (VREFB) with ±2% regulation.
It integrates dual 2-A peak-current MOSFET drivers-high-side configurable as bootstrap or ground-referenced, low-side optimized for synchronous rectification-with active deadtime control (50–200 ns crossover delay) and overcurrent protection triggered at 100 mV OCP input threshold. Thermal shutdown activates at 160°C with 10°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | 1.3 V to 2.6 V programmable via 5-bit VP inputs; higher voltages supported with external resistor divider. |
| Reference Accuracy | ±1.5% over 0°C–125°C junction temperature, including comparator offset; ensures stable regulation across thermal stress. |
| Driver Output Current | 2-A peak sink/source per driver (high- and low-side); enables driving multiple paralleled n-channel MOSFETs up to 30 A load. |
| Hysteretic Propagation Delay | <300 ns max from VSENSE to HIGHDR/LOWDR; enables fast transient response critical for DSP dynamic load steps. |
| Power Good Threshold | Undervoltage trip at 93% of VREF (±3% hysteresis); open-drain PWRGD output signals valid rail to downstream logic. |
| Overvoltage Protection | Triggers at 115% of VREF (±5%); latches off drivers until INHIBIT low or VCC drops below UVLO stop threshold. |
| Quiescent Supply Current | 3 mA typical in operation; 90 µA in standby-reduces idle power loss in always-on subsystems. |
Pinout & Package
TPS56100PWPG4 is housed in a 28-pin TSSOP PowerPAD™ package (PWP), featuring an exposed thermal pad for enhanced heat dissipation and elimination of external heatsinks in high-current designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IOUT | Current-sense output | Voltage proportional to high-side FET Rds(on) × load current (2×Rds(on)×IOUT); used for current monitoring or OCP scaling. |
| VSENSE | Feedback input | Connects to regulated output bus; RC filter recommended to reject switching noise and ensure stable regulation. |
| PWRGD | Power-good indicator | Open-drain output pulled low when output falls below 93% VREF; interfaces directly with DSP reset or sequencer logic. |
| VP0–VP4 | Digital voltage programming inputs | TTL-compatible inputs (internally pulled up to 5 V); define 1.3–2.6 V output in 50-mV steps per Table 1. |
| HIGHDR / LOWDR | Gate drive outputs | 2-A peak-current drivers for high- and low-side n-channel MOSFETs; support bootstrap or ground-referenced configurations. |
| INHIBIT | Enable/disable control | TTL-compatible input; disables drivers and discharges slow-start capacitor when low-enables precise power sequencing. |
| SLOWST | Soft-start timing | Capacitor-to-ground sets ramp time; charging current scales with VREFB, ensuring consistent startup time across all output voltages. |
| OCP | Overcurrent protection input | 100 mV threshold; accepts resistor-divider signal from IOUT to set current limit-supports adaptive protection vs. fixed Rds(on). |
Key Features
| Feature | Design Value |
|---|---|
| Hysteretic control architecture | Eliminates loop compensation components and enables sub-300 ns response to load transients-critical for DSP burst-mode operation. |
| Integrated 2-A dual MOSFET drivers | Drives multiple paralleled FETs without external drivers; reduces BOM count and layout complexity in high-current DSP supplies. |
| Programmable 5-bit VID interface | Supports 1.3–2.6 V in 50-mV steps per Intel VRM 8.3; enables single-controller reuse across multiple DSP core voltage requirements. |
| Active deadtime control | Prevents shoot-through by enforcing 50–200 ns minimum off-time between HIGHDR and LOWDR transitions-improves reliability and efficiency. |
| Thermal-enhanced PowerPAD package | 28-pin TSSOP with exposed thermal pad lowers junction-to-board thermal resistance-enables 30 A operation without heatsink in compact layouts. |
Applications
| DSP Core Power Supply | Multi-Rail Sequencing System |
|---|---|
|
Use Scenario: Providing tightly regulated 1.5 V or 1.8 V supply to TI 'C6000 DSP processors during high-dynamic-load video encoding. IC Role / Device Role / Timing Role: Primary buck controller regulating CVDD rail; manages fast load-step response via hysteretic control and monitors output health via PWRGD. Use Value: Achieves >90% efficiency at 20 A while maintaining ±1.5% output accuracy across temperature-reducing thermal stress and enabling fanless enclosure design. |
Use Scenario: Coordinating startup sequence of DSP core, I/O, and memory rails using INHIBIT and PWRGD signals in telecom baseband boards. IC Role / Device Role / Timing Role: Voltage supervisor and sequencer enabler; INHIBIT input synchronizes turn-on with 5-V bias rail readiness; PWRGD confirms CVDD stability before releasing downstream resets. Use Value: Eliminates need for external sequencer IC-reduces component count and PCB area while guaranteeing safe power-up order per JEDEC JESD8-12 requirements. |
| High-Current Synchronous Buck Converter | Industrial DSP-Based Motor Control |
|
Use Scenario: Delivering 30 A at 1.3 V to multi-core 'C5000-based motor control ASICs in servo drives. IC Role / Device Role / Timing Role: Controller with dual 2-A drivers enabling parallel MOSFET arrays; uses IOUT and OCP pins for adaptive current limiting based on actual FET Rds(on). Use Value: Supports scalable current capacity without redesign-adding FETs maintains regulation integrity while extending lifetime via lower per-FET thermal stress. |
Use Scenario: Powering real-time DSP subsystems in industrial PLCs requiring robust operation under 85°C ambient and EMI-rich factory environments. IC Role / Device Role / Timing Role: Fault-tolerant regulator with OVP (115% VREF), thermal shutdown (160°C), and crowbar protection via LODRV-prevents processor damage during short-circuit events. Use Value: Enables Class A industrial reliability: no external protection ICs needed; single-chip solution withstands sustained overload and thermal cycling per IEC 61000-4-2/4-4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous-buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS56200PWPG4 | Dual-channel version with independent 5-bit VID per channel; same PWP package and hysteretic architecture but adds second controller for auxiliary rails. | Required when powering both DSP core and I/O voltage domains from one IC; not drop-in-requires additional VP decoding and feedback routing. | Select TPS56200PWPG4 only if dual-rail integration reduces system cost/size more than added design complexity justifies. |
| UCC28220D | Voltage-mode PWM controller (not hysteretic); fixed 5-V output; no VID interface; requires external error amplifier and compensation network. | Suitable for non-DSP fixed-voltage supplies where transient speed is less critical; lacks PWRGD, OCP, and current-sense features of TPS56100PWPG4. | Choose UCC28220D only for legacy 5-V-only applications where design reuse outweighs loss of programmability and fast-response capability. |
Compared with TPS56100PWPG4, TPS56200PWPG4 offers dual-rail flexibility at the cost of increased pin count and layout overhead, while UCC28220D trades advanced DSP-specific features for simplicity in fixed-output, low-transient-demand systems.
Availability
TPS56100PWPG4 is available at Aetrix Electronics and suitable for DSP power management, industrial motor control, and telecom baseband applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS56100PWPG4 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.
The TPS56100PWPG4 belongs to TI's DSP power controller product line, engineered specifically to meet the stringent voltage accuracy, transient response, and sequencing requirements of TI's 'C5000 and 'C6000 digital signal processors.
FAQ
What is the maximum output current supported by the TPS56100PWPG4?
The TPS56100PWPG4 itself does not deliver current-it controls external MOSFETs. Its integrated 2-A peak-current drivers enable configurations delivering up to 30 A to the load, as confirmed in the datasheet's "Ideal for Applications With Current Ranges From 3 A to 30 A" statement and thermal derating table for the PWP package.
Does the TPS56100PWPG4 support programmable output voltage, and how is it configured?
Yes, the TPS56100PWPG4 supports programmable output voltage from 1.3 V to 2.6 V in 50-mV steps using five TTL-compatible VP0–VP4 inputs. Configuration follows Intel VRM 8.3 coding (Table 1); internally pulled-up inputs simplify interface-grounding specific pins selects the desired VREF value.
How does the TPS56100PWPG4 implement overvoltage protection?
The TPS56100PWPG4 monitors output voltage via VSENSE and triggers overvoltage protection (OVP) when VO exceeds 115% of VREF (±5% tolerance). Upon detection, it latches off both HIGHDR and LOWDR outputs until INHIBIT is pulled low or VCC drops below UVLO stop threshold-preventing damage to connected DSPs.
Can the TPS56100PWPG4 be used with external current-sense resistors instead of Rds(on) sensing?
Yes, the TPS56100PWPG4 supports both methods. While IOUT provides Rds(on)-based current sensing, the datasheet explicitly states that "a sense resistor should be connected between the input supply and the drain of the high-side FETs" for higher accuracy-enabling precision OCP calibration independent of FET variance.
What thermal performance can be expected from the TPS56100PWPG4 in the PWP package?
In the 28-pin TSSOP PowerPAD™ (PWP) package, the TPS56100PWPG4 achieves 1150 mW power dissipation at TA ≤ 25°C, derating linearly at 11.5 mW/°C above 25°C. At 70°C ambient, rated power drops to 630 mW-sufficient for continuous 20–25 A operation with proper PCB copper area and airflow per TI's thermal design guidelines.
TPS56100PWPG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- 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
TPS56100PWPG4 FAQ
1.How can I place an order for TPS56100PWPG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS56100PWPG4 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 TPS56100PWPG4 reliable?
The price and inventory of TPS56100PWPG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS56100PWPG4 is usually 5 days.
3.What payment methods are accepted for TPS56100PWPG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS56100PWPG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS56100PWPG4?
TPS56100PWPG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS56100PWPG4 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 TPS56100PWPG4?
For technical support, including TPS56100PWPG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS56100PWPG4 requirements.
6.How does Aetrix verify that TPS56100PWPG4 is sourced from the original manufacturer or authorized distributors?
All TPS56100PWPG4 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 TPS56100PWPG4 meets industry standards.
7.What is the process for return or replacement of TPS56100PWPG4?
All TPS56100PWPG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS56100PWPG4, 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 TPS56100PWPG4 part is unused and in its original packaging.
Return procedure for TPS56100PWPG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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