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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Special Purpose Regulators

Texas Instruments TPS56100PWP

Name: TPS56100PWP
Brand: Texas Instruments
SKU: TPS56100PWP
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPS56100PWP

Manufacturer:: Texas Instruments

Category:: Special Purpose Regulators

Package:: 28-PowerTSSOP (0.173", 4.40mm Width)

Datasheet:: TPS56100PWP.pdf

Description:: IC REG CTRLR 1OUT 28HTSSOP

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Product details

Overview

TPS56100PWP from Texas Instruments is a synchronous-buck regulator controller for DSP power supplies, delivering programmable 1.3 V–2.6 V output with ±1.5% reference accuracy, 300 ns max propagation delay, and 2 A peak MOSFET drive capability. It supports 3 A–30 A load ranges and integrates hysteretic control for fast transient response in TI 'C6000 and 'C5000 DSP systems.

For engineers reviewing the TPS56100PWP datasheet, TPS56100PWP pinout, TPS56100PWP application, or TPS56100PWP equivalent, key selection factors include VID-programmable voltage setting (VP0–VP4), dual 2-A high/low-side drivers, integrated overvoltage/overcurrent protection, Power Good signaling, and thermal shutdown at 160°C - all in a thermally enhanced 28-pin TSSOP PowerPAD package.

Technical Context

The TPS56100PWP implements a fast hysteretic control architecture with comparator propagation delay <300 ns and adjustable hysteresis window (±15 mV to ±30 mV) centered on VREF. Its 5-bit VP network conforms to Intel VRM 8.3 for 1.3 V–2.6 V settings in 50-mV steps, with buffered VREFB output enabling proportional slow-start timing.

It features dual independent 2-A MOSFET drivers: high-side driver supports bootstrap or ground-referenced configuration with internal Schottky diode; low-side driver provides crowbar-mode protection via LODRV. Deadtime control prevents shoot-through by enforcing 50–200 ns crossover delay and phase-junction voltage monitoring.

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 VRM 8.3 code table; ±1.5% cumulative accuracy over 0°C–125°C.
Control Method	Hysteretic regulation with <300 ns propagation delay; hysteresis window adjustable from ±15 mV to ±30 mV using external resistors on VREFB/VHYST.
Driver Output Current	2 A peak sink/source per driver (high- and low-side); supports parallel MOSFETs for up to 30 A total load current.
Protection Features	Overvoltage trip at 115% VREF (±3%), undervoltage lockout at 4.08 V (0.5 V hysteresis), OCP at 100 mV threshold, thermal shutdown at 160°C (10°C hysteresis).
Power Good Signal	Open-drain PWRGD asserts low when output falls below 93% VREF; enables system sequencing and fault detection.
Supply Current	3 mA typical operating current; 90 µA standby current during inhibit or UVLO conditions.
Package	28-pin TSSOP PowerPAD (PWP) with exposed thermal pad; 1150 mW power dissipation at 25°C, derated 11.5 mW/°C above.

Pinout & Package

TPS56100PWP is housed in a 28-pin TSSOP PowerPAD® package (PWP), featuring an exposed thermal pad for enhanced heat dissipation and elimination of external heatsinks. The PowerPAD improves thermal resistance and supports high-current operation up to 30 A.

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.
OCP	Overcurrent protection input	Accepts resistor-divider voltage from IOUT to ANAGND; trips at 100 mV to disable drivers and latch fault.
VHYST	Hysteresis setting input	Sets comparator hysteresis window = 2×(VREFB − VHYST); enables precise ripple control without loop compensation.
VREFB	Buffered reference output	Stable ±2% replica of VREF; sources up to 500 µA and sets slow-start charging current (I_SS = I_VREFB/5).
VSENSE	Output voltage feedback	Connects directly to converter output bus; RC filter recommended to reject switching noise and ensure stable regulation.
ANAGND	Analog ground reference	Separate ground for analog circuitry (reference, comparators, sensing); must be tied to DRVGND within ±0.2 V.
BIAS / DRV / VCC	Supply rails	BIAS and DRV require 5 V with 1-µF ceramic decoupling to ANAGND; VCC has 4.08 V UVLO with 0.5 V hysteresis.
BOOT / BOOTLO	High-side gate drive bias	BOOT–BOOTLO supplies floating gate drive; BOOTLO connects to phase node (for bootstrap) or DRVGND (for ground-referenced mode).
HIGHDR / LOWDR	Gate drive outputs	2-A peak drivers for n-channel high- and low-side MOSFETs; rise/fall times <120 ns (CL = 6 nF, TJ = 125°C).
PWRGD	Power good indicator	Open-drain output pulled low when VO < 93% VREF; requires external pull-up for logic-level interface with DSP or FPGA.
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; "11111" = 1.30 V, "00000" = 2.05 V.
INHIBIT	Enable/disable control	TTL-compatible input; low disables drivers and discharges slow-start capacitor; start threshold = 2.1 V (±0.1 V hysteresis).

Key Features

Feature	Design Value
Programmable output voltage	1.3 V–2.6 V in 50-mV steps via 5-pin VID interface (VP0–VP4), compliant with Intel VRM 8.3 for DSP core supply compatibility.
Hysteretic control architecture	Eliminates need for external compensation; delivers sub-300 ns response to load transients - critical for 'C6000 DSP burst-mode operation.
Dual 2-A MOSFET drivers	Independent high- and low-side drivers support both bootstrap and ground-referenced topologies; enable scalable 3–30 A designs with parallel FETs.
Integrated protection suite	Combines OVP (115% VREF), OCP (100 mV threshold), thermal shutdown (160°C), UVLO (4.08 V), and crowbar-mode LODRV for processor safety.
Proportional slow-start	Charging current = I_VREFB/5 ensures consistent ramp time across all output voltages - no capacitor value changes needed for different VP codes.
PowerPAD thermal package	28-pin TSSOP with exposed copper pad reduces θ_JA; enables 1150 mW dissipation at 25°C and eliminates bulky heatsinks in space-constrained DSP modules.

Applications

DSP Core Power Supply	Multi-Core DSP Platform
Use Scenario: Providing tightly regulated 1.5 V or 1.8 V core voltage to TI TMS320C67xx DSPs in telecom baseband processing. IC Role / Device Role / Timing Role: Synchronous-buck controller managing high-efficiency conversion from 5 V input, with fast transient response to handle C6000 instruction bursts. Use Value: Hysteretic control ensures <300 ns recovery from 50% load steps, maintaining voltage within ±3% window and preventing DSP reset or data corruption.	Use Scenario: Powering dual 'C54x DSPs sharing a single 1.3 V rail in voice-over-IP gateway hardware. IC Role / Device Role / Timing Role: Single-controller solution driving paralleled MOSFETs to deliver 20 A with matched voltage tracking across both processors. Use Value: VP-coded digital interface allows identical firmware control across both DSPs; PowerPAD package sustains continuous 20 A without thermal throttling.
Industrial Motor Control DSP	Test Equipment Signal Processing
Use Scenario: Generating 2.5 V I/O supply for C6000-based motor control cards operating in 85°C ambient industrial enclosures. IC Role / Device Role / Timing Role: Regulator controller with thermal shutdown (160°C) and robust OVP/OCP protecting against inverter-induced bus transients. Use Value: 160°C trip point + 10°C hysteresis prevents nuisance shutdowns while ensuring safe operation under sustained overload or cooling failure.	Use Scenario: Supplying 1.65 V core voltage to high-speed C5000 DSPs in automated test equipment requiring rapid power cycling. IC Role / Device Role / Timing Role: Controller with TTL-compatible INHIBIT and PWRGD signals enabling precise power sequencing and system-level fault reporting. Use Value: INHIBIT start threshold (2.1 V) and PWRGD undervoltage detection (93% VREF) allow deterministic boot timing and fail-safe shutdown before DSP initialization.

DSP Core Power Supply

Multi-Core DSP Platform

Use Scenario: Providing tightly regulated 1.5 V or 1.8 V core voltage to TI TMS320C67xx DSPs in telecom baseband processing.

IC Role / Device Role / Timing Role: Synchronous-buck controller managing high-efficiency conversion from 5 V input, with fast transient response to handle C6000 instruction bursts.

Use Value: Hysteretic control ensures <300 ns recovery from 50% load steps, maintaining voltage within ±3% window and preventing DSP reset or data corruption.

Use Scenario: Powering dual 'C54x DSPs sharing a single 1.3 V rail in voice-over-IP gateway hardware.

IC Role / Device Role / Timing Role: Single-controller solution driving paralleled MOSFETs to deliver 20 A with matched voltage tracking across both processors.

Use Value: VP-coded digital interface allows identical firmware control across both DSPs; PowerPAD package sustains continuous 20 A without thermal throttling.

Industrial Motor Control DSP

Test Equipment Signal Processing

Use Scenario: Generating 2.5 V I/O supply for C6000-based motor control cards operating in 85°C ambient industrial enclosures.

IC Role / Device Role / Timing Role: Regulator controller with thermal shutdown (160°C) and robust OVP/OCP protecting against inverter-induced bus transients.

Use Value: 160°C trip point + 10°C hysteresis prevents nuisance shutdowns while ensuring safe operation under sustained overload or cooling failure.

Use Scenario: Supplying 1.65 V core voltage to high-speed C5000 DSPs in automated test equipment requiring rapid power cycling.

IC Role / Device Role / Timing Role: Controller with TTL-compatible INHIBIT and PWRGD signals enabling precise power sequencing and system-level fault reporting.

Use Value: INHIBIT start threshold (2.1 V) and PWRGD undervoltage detection (93% VREF) allow deterministic boot timing and fail-safe shutdown before DSP initialization.

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous-buck controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS56200PWP	Higher current capability (up to 40 A), same 28-pin PWP package and VP interface; adds adaptive dead-time control and improved OCP accuracy (±5% vs ±25%).	Targeted at higher-power C6000 systems or multi-rail boards where margin and precision outweigh cost sensitivity.	Select TPS56200PWP when >30 A load or tighter OCP tolerance is required; pinout and VID coding are identical, enabling drop-in upgrade.
UCC28220D	Fixed-frequency current-mode controller (300 kHz), not hysteretic; lacks VID interface - output set by external resistor divider; no PowerPAD package.	Suitable for cost-sensitive, lower-transient applications where DSP burst behavior is less demanding and thermal constraints are relaxed.	Choose UCC28220D only if fixed-frequency operation and non-VID design are acceptable; requires PCB redesign due to different pinout, package (SOIC-16), and feedback topology.

Compared with TPS56100PWP, TPS56200PWP offers higher current headroom and tighter protection tolerances in identical packaging, while UCC28220D trades hysteretic speed and digital programmability for simpler BOM and lower cost - making it suitable only for non-DSP or legacy DSP platforms with static voltage requirements.

Availability

TPS56100PWP is available at Aetrix Electronics and suitable for DSP core power, industrial motor control, telecom baseband processing, and automated test equipment requiring stable component supply and long-term lifecycle support.

Supply support for TPS56100PWP 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 DSP infrastructure and high-efficiency power conversion.

The TPS56100PWP belongs to TI's DSP power controller product line, engineered specifically to meet the fast transient, programmable voltage, and thermal demands of TI's C5000 and C6000 digital signal processors.

FAQ

What is the output voltage range supported by the TPS56100PWP?

The TPS56100PWP supports a digitally programmable output voltage range from 1.3 V to 2.6 V in 50-mV increments, set via the five VP input pins (VP0–VP4) according to the Intel VRM 8.3 code table. The reference accuracy is ±1.5% over temperature (0°C to 125°C), and voltages above 2.6 V can be implemented using an external resistive divider on the VSENSE node. This makes the TPS56100PWP ideal for powering TI's C5000 and C6000 DSP families with precise, software-configurable core voltages.

How does the TPS56100PWP achieve fast transient response?

The TPS56100PWP achieves fast transient response through its hysteretic control architecture, which eliminates the need for loop compensation and delivers a maximum propagation delay of 300 ns from VSENSE to HIGHDR/LOWDR outputs. This enables immediate correction of output deviations caused by sudden load steps - critical for burst-mode operation in 'C6000 DSPs. The TPS56100PWP also features a dedicated slow-start circuit with current proportional to VREFB, ensuring consistent ramp time regardless of programmed output voltage.

What protection features are integrated into the TPS56100PWP?

The TPS56100PWP integrates overvoltage protection (OVP) triggering at 115% VREF, overcurrent protection (OCP) with 100 mV threshold adjustable via external resistor, thermal shutdown at 160°C (10°C hysteresis), undervoltage lockout on VCC (4.08 V start), and crowbar-mode protection via LODRV for shorted high-side FETs. All protections include 3–5 µs deglitching for noise immunity. These features collectively safeguard both the controller and downstream DSPs from electrical faults without requiring external supervision circuitry.

Can the TPS56100PWP drive multiple MOSFETs in parallel?

Yes, the TPS56100PWP is explicitly designed to drive multiple MOSFETs in parallel: its 2-A peak source/sink capability per driver (HIGHDR and LOWDR) supports configurations delivering up to 30 A total load current. The datasheet confirms suitability for "applications with current ranges from 3 A to 30 A", and the high-side driver supports both bootstrap and ground-referenced modes - enabling flexible layout for paralleled high-side FETs. Thermal performance is enhanced by the PowerPAD package, which dissipates up to 1150 mW at 25°C ambient.

What is the function of the VREFB pin on the TPS56100PWP?

The VREFB pin on the TPS56100PWP provides a buffered, low-impedance replica of the internal reference voltage (VREF), accurate to within ±2%. Its primary design functions are: (1) setting hysteresis via external resistor divider to VHYST, and (2) sourcing the slow-start charging current (I_SS = I_VREFB/5). The TPS56100PWP datasheet specifies that VREFB should not be loaded beyond 500 µA - connecting additional circuitry risks degrading slow-start timing accuracy and reference stability.

TPS56100PWP Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 28-PowerTSSOP (0.173", 4.40mm Width)

Packaging:: Bulk

Product Status:: Active

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

TPS56100PWP FAQ

1.How can I place an order for TPS56100PWP through Aetrix?

Please submit a Request for Quotation (RFQ) for TPS56100PWP 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 TPS56100PWP reliable?

The price and inventory of TPS56100PWP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS56100PWP is usually 5 days.

3.What payment methods are accepted for TPS56100PWP?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS56100PWP transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPS56100PWP?

TPS56100PWP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPS56100PWP 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 TPS56100PWP?

For technical support, including TPS56100PWP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS56100PWP requirements.

6.How does Aetrix verify that TPS56100PWP is sourced from the original manufacturer or authorized distributors?

All TPS56100PWP 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 TPS56100PWP meets industry standards.

7.What is the process for return or replacement of TPS56100PWP?

All TPS56100PWP units undergo pre-shipment inspection (PSI). If there is an issue with TPS56100PWP, 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 TPS56100PWP part is unused and in its original packaging.

Return procedure for TPS56100PWP:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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