My Inquiry
My Account
Texas Instruments TPS56300PWPG4
- Part No.:
- TPS56300PWPG4
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 28-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS56300PWPG4.pdf
- Description:
- IC REG DL BUCK/LNR SYNC 28HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,096
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS56300PWPG4 from Texas Instruments is a dual-output synchronous-buck controller IC designed for DSP and microcontroller power delivery, integrating a fast hysteretic ripple regulator for core voltage (1.3–3.3 V) and an external-NMOS LDO controller for I/O voltage (1.3–3.3 V), with ±1.5% reference tolerance, 90%+ efficiency, and programmable slow-start for simultaneous power-up.
For engineers reviewing the TPS56300PWPG4 datasheet, TPS56300PWPG4 pinout, TPS56300PWPG4 application, or TPS56300PWPG4 equivalent, this page delivers verified technical context, validated pin functions, confirmed dual-rail sequencing behavior, real-world protection thresholds (OVP/UVP/OCP), and authoritative alternative selection guidance for C6000-family and similar high-performance digital processor power designs.
Technical Context
The TPS56300PWPG4 implements a dual-loop architecture: a hysteretic ripple regulator (RR) with adaptive deadtime and droop compensation for fast transient response on the core rail, and a separate error-amplifier-based LDO controller driving an external N-channel MOSFET for the I/O rail. Both rails share a tri-level VID network enabling nine preset voltage pairs.
It features integrated high- and low-side gate drivers (2-A peak sink/source), lossless high-side current sensing via VDS detection, open-drain PWRGD monitoring both outputs at 93% VREF, and coordinated shutdown/discharge during inhibit or undervoltage events - all operating across −40°C to 125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8 V – 5.5 V - supports single-supply operation from common system rails including 3.3 V and 5 V. |
| Core Output Regulation | Hysteretic ripple regulator - enables <1 µs transient response and reduces bulk capacitance requirements. |
| LDO Output Control | External-NMOS LDO controller - allows scalable I/O rail design with user-selected pass device and thermal management. |
| Reference Accuracy | ±1.5% over −40°C to 125°C - ensures stable core/I/O voltage setpoints across industrial temperature range. |
| Power Good Threshold | 93% of VREF for both outputs - guarantees reliable system enable only when both rails are within specification. |
| Overcurrent Protection | Adjustable via resistor divider on IOUT pin - provides precise, load-dependent short-circuit protection for the ripple regulator. |
| Thermal Shutdown | 145°C trip with 10°C hysteresis - prevents permanent damage during sustained overload or poor heatsinking. |
Pinout & Package
Packaged in a 28-pin TSSOP (PWP) with exposed thermal pad (PowerPAD™), the TPS56300PWPG4 requires careful PCB layout for thermal performance and noise immunity - especially for analog sense pins (VSEN−RR, VSEN−LDO, HISENSE) and bootstrap nodes (BOOT, BOOTLO).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VID0, VID1 | Tri-level voltage identification inputs | Select one of nine core/I/O voltage pairs (e.g., 1.3 V/1.5 V, 1.8 V/3.3 V); floating = mid-level (Vbias/2). |
| SLOWST | Slow-start timing capacitor node | Controls ramp rate for both outputs; ensures simultaneous, controlled power-up without rail skew. |
| VSEN−RR, VSEN−LDO | Output voltage feedback inputs | Direct connection to respective output nodes; RC filtering recommended to reject switching noise. |
| HIGHDR, LOWDR | High-side and low-side gate drivers | Drive external N-channel MOSFETs; 2-A peak current capability supports >30-A system loads. |
| PWRGD | Open-drain power-good status output | Pulled low if either output falls below 93% VREF - used for system enable/disable sequencing. |
| OCP | Overcurrent protection threshold adjust | Resistor divider between IOUT and ANAGND sets RR current limit; enables lossless sensing. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent regulation loops | Simultaneous core (hysteretic) and I/O (LDO) control with shared VID and slow-start - eliminates need for discrete sequencing ICs. |
| Programmable droop compensation | Resistor-adjustable output voltage droop proportional to load current - maintains stability under dynamic loads without external compensation. |
| Integrated high-current gate drivers | 2-A peak sink/source per driver with adaptive deadtime - enables use of low-Rds(on) logic-level MOSFETs and minimizes shoot-through risk. |
| Lossless high-side current sensing | VDS-based sensing via HISENSE/LOSENSE - avoids shunt resistor losses and improves efficiency in high-current applications. |
| Coordinated protection suite | Per-rail OVP (115% VREF), UVP (75% VREF), and thermal shutdown - ensures robust fault handling without external supervision circuitry. |
Applications
| DSP Core + I/O Power Supply | Multi-Rail Microcontroller System |
|---|---|
Use Scenario: Powering TI C6000-series DSPs requiring tightly sequenced 1.4 V core and 3.3 V I/O rails. IC Role / Device Role / Timing Role: Dual-output controller managing simultaneous startup, independent regulation, and coordinated fault response. Use Value: Eliminates discrete sequencing components and reduces BOM count while meeting TI's strict DSP power specifications. |
Use Scenario: Supplying heterogeneous voltage domains in industrial microcontrollers with mixed 1.8 V peripherals and 3.3 V interfaces. IC Role / Device Role / Timing Role: Programmable VID-based dual-rail generator with adjustable droop and soft-start for flexible rail configuration. Use Value: Enables single-chip support for multiple MCU variants without hardware redesign or firmware changes. |
| FPGA Configuration & I/O Bank Supply | Embedded Vision Processor Power |
Use Scenario: Delivering stable 1.2 V configuration voltage and 2.5 V I/O bank voltage for Xilinx Spartan-6 FPGAs. IC Role / Device Role / Timing Role: Hysteretic core regulator + LDO I/O controller with precise PWRGD assertion for FPGA INIT_B coordination. Use Value: Fast transient response prevents configuration errors during high-dV/dt I/O switching events. |
Use Scenario: Powering vision processors like TI DM365 with 1.3 V core and 1.8 V memory interface rails. IC Role / Device Role / Timing Role: Dual-output controller with thermal shutdown and overcurrent protection for fanless edge devices. Use Value: Maintains safe operating area under sustained image-processing workloads without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS51220ARUKR | Single-chip dual-phase buck controller with integrated MOSFET drivers; no external LDO controller function. | Designed for notebook CPU VRMs; lacks dedicated LDO path for independent I/O rail regulation. | Choose when full integration and phase interleaving are prioritized over flexible I/O rail topology. |
| LM26420XMH/NOPB | Two independent synchronous buck controllers in one package; no VID interface or droop compensation. | Requires external sequencing and voltage-setting resistors; no built-in PWRGD monitoring of both rails. | Prefer when fixed-voltage rails and discrete control loop tuning are acceptable for cost-sensitive designs. |
Compared with TPS56300PWPG4, TPS51220ARUKR integrates power stages but sacrifices LDO flexibility, while LM26420XMH/NOPB offers independent control but adds complexity in sequencing and protection implementation - making TPS56300PWPG4 optimal for VID-programmable, thermally robust DSP/microcontroller dual-rail systems.
Availability
TPS56300PWPG4 is available at Aetrix Electronics and suitable for DSP power supplies, industrial microcontroller systems, FPGA configuration circuits, and embedded vision processor designs requiring stable component supply and long-term lifecycle support.
Supply support for TPS56300PWPG4 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-reliability power conversion solutions.
The TPS56300PWPG4 belongs to TI's DSP-specific power controller product line, engineered to meet stringent voltage accuracy, sequencing, and transient response requirements of C6000-family and compatible high-performance digital processors.
FAQ
What is the primary function of the TPS56300PWPG4 in a power system?
The TPS56300PWPG4 serves as a dual-output programmable controller IC that independently regulates a DSP or microcontroller core voltage using a fast hysteretic ripple regulator and an I/O voltage using an external-NMOS LDO controller. It coordinates both rails' startup, protection, and monitoring - eliminating the need for separate controllers or sequencing ICs in designs such as TI C6000-family systems.
How does the TPS56300PWPG4 achieve simultaneous power-up of core and I/O rails?
The TPS56300PWPG4 achieves simultaneous power-up through its shared SLOWST pin and internal slow-start circuitry, which ramps a common reference voltage applied to both regulation loops. This ensures the core (ripple regulator) and I/O (LDO controller) outputs track each other during startup, preventing voltage skew that could cause latch-up or initialization failure in sensitive digital processors.
Can the TPS56300PWPG4 support non-standard output voltages outside the VID table?
Yes, the TPS56300PWPG4 supports non-standard output voltages by replacing the VID network with external resistor dividers from VOUT to VSEN−RR or VSEN−LDO and ground. The datasheet confirms this method enables arbitrary core and I/O voltages beyond the nine preset VID pairs (e.g., 1.25 V, 2.85 V), provided the reference accuracy and loop stability are verified per application.
What protection features are integrated into the TPS56300PWPG4?
The TPS56300PWPG4 integrates per-rail overvoltage (115% VREF), undervoltage (75% VREF), and overcurrent protection, plus thermal shutdown at 145°C with 10°C hysteresis. Its open-drain PWRGD pin monitors both outputs continuously, asserting low if either rail deviates - providing comprehensive fault coverage without external supervision circuitry.
Is the TPS56300PWPG4 pin-compatible with other members of the TPS56300 family?
Yes, the TPS56300PWPG4 shares the same PWP package and pinout as TPS56300PWP and TPS56300PWPR - differing only in tape-and-reel packaging (G4 suffix denotes green/lead-free, RoHS-compliant version). All electrical and functional characteristics, including VID mapping, driver performance, and protection thresholds, are identical across these variants.
TPS56300PWPG4 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
- Topology:
- Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
- Number of Outputs:
- 2
- Frequency - Switching:
- 300kHz
- Voltage/Current - Output 1:
- Controller
- Voltage/Current - Output 2:
- Programmable, 2A
- Voltage/Current - Output 3:
- -
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- Yes
- Voltage - Supply:
- 2.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-HTSSOP
TPS56300PWPG4 FAQ
1.How can I place an order for TPS56300PWPG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS56300PWPG4 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 TPS56300PWPG4 reliable?
The price and inventory of TPS56300PWPG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS56300PWPG4 is usually 5 days.
3.What payment methods are accepted for TPS56300PWPG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS56300PWPG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS56300PWPG4?
TPS56300PWPG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS56300PWPG4 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 TPS56300PWPG4?
For technical support, including TPS56300PWPG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS56300PWPG4 requirements.
6.How does Aetrix verify that TPS56300PWPG4 is sourced from the original manufacturer or authorized distributors?
All TPS56300PWPG4 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 TPS56300PWPG4 meets industry standards.
7.What is the process for return or replacement of TPS56300PWPG4?
All TPS56300PWPG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS56300PWPG4, 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 TPS56300PWPG4 part is unused and in its original packaging.
Return procedure for TPS56300PWPG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS56300PWPG4 Tags
-
TPS6521905RHBR
Texas Instruments
-
MIC3385YHL-TR
Microchip Technology
-
A4402ELPTR-T
Allegro MicroSystems
-
LM26480SQ-AA/NOPB
Texas Instruments
-
A4402KLPTR-T
Allegro MicroSystems
-
BD71847AMWV-E2
ROHM Semiconductor
-
ADP5040ACPZ-1-R7
Analog Devices Inc.
-
LT3048IDC#TRPBF
Analog Devices Inc.
-
ADP5037ACPZ-R7
Analog Devices Inc.
-
XRP7714ILB-F
MaxLinear, Inc.
-
LTC3260EDE#TRPBF
Analog Devices Inc.
-
LTC3260EMSE#PBF
Analog Devices Inc.
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
