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Texas Instruments TPS59640RSLT
- Part No.:
- TPS59640RSLT
- Manufacturer:
- Texas Instruments
- Category:
- Special Purpose Regulators
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
TPS59640RSLT.pdf
- Description:
- IC REG CTRLR IMVP-7 2OUT 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,516
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Product details
Overview
TPS59640RSLT from Texas Instruments is a dual-output, 3-phase VR12.5/IMVP7-compliant synchronous buck controller designed for Intel mobile processors. It delivers up to 60 A per phase with programmable switching frequency (300–1000 kHz), supports DCR current sensing, and operates across –40°C to 105°C ambient. It is used in high-performance laptop CPU power delivery systems requiring strict IMVP compliance.
For engineers reviewing the TPS59640RSLT datasheet, TPS59640RSLT pinout, TPS59640RSLT application, or TPS59640RSLT equivalent, key selection criteria include VR12.5/IMVP7 protocol support, 3-phase interleaved control architecture, DCR/temperature-compensated current monitoring, and VQFN-48 (RSL) package compatibility with Intel mobile platform reference designs.
Technical Context
The TPS59640RSLT implements a digital PWM controller with integrated PMBus interface for dynamic voltage/frequency scaling and telemetry reporting. It supports adaptive voltage positioning (AVP), differential remote sensing, and programmable over-current protection thresholds per phase.
It features a dedicated SVID interface compliant with Intel VR12.5/IMVP7 specifications, enabling real-time communication with the processor for VID code interpretation, thermal status reporting, and fault logging - all under strict CNDA requirements with Intel.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Dual-output, 3-phase synchronous buck controller - enables scalable CPU core and GT/IO rail power with phase interleaving to reduce input/output ripple. |
| Input Voltage Range | 4.5 V to 24 V - supports wide-input industrial-grade adapter and battery-backed laptop power architectures. |
| Output Voltage Range | 0.25 V to 1.52 V (programmable via SVID) - matches Intel VR12.5/IMVP7 VID code mapping for precise CPU voltage regulation. |
| Switching Frequency | 300 kHz to 1000 kHz (programmable) - allows optimization of efficiency vs. size trade-offs in compact mobile PCB layouts. |
| Operating Temperature | –40°C to 105°C - qualified for extended thermal environments in thin-and-light notebooks and 2-in-1 convertible platforms. |
| Package | VQFN-48 (RSL, 6 mm × 6 mm, 0.4 mm pitch) - thermally enhanced, leadless package with exposed thermal pad for high-power density CPU VRMs. |
Pinout & Package
VQFN-48 (RSL) package with 6 mm × 6 mm footprint, 0.4 mm pin pitch, and exposed thermal pad (pin 48). Designed for low-inductance, high-current routing in multi-phase CPU VRM layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main power input | Accepts 4.5–24 V input; connects to bulk capacitors and high-side FET sources in each phase. |
| VOUT1/VOUT2 | Output voltage sense | Differential remote sensing inputs for core and GT/IO rails - enables accurate load-line regulation and AVP compensation. |
| SVID[0:5] | Processor interface | 6-bit SVID bus (clocked, data, alert) - provides real-time VID updates, thermal status, and fault signaling per Intel VR12.5 spec. |
| PHASE[0:2] | Phase enable/control | Three independent phase-enable outputs - drive external gate drivers for 3-phase interleaved operation. |
| PGOOD | Power-good indicator | Open-drain output signals stable output regulation across both rails - used for system power sequencing and BIOS handshaking. |
Key Features
| Feature | Design Value |
|---|---|
| VR12.5/IMVP7 Compliance | Fully implements Intel's SVID v3.0 protocol, including adaptive voltage positioning, thermal throttling response, and dynamic phase shedding. |
| DCR Current Sensing | Supports temperature-compensated DCR sensing on each phase - eliminates need for current-sense resistors and improves efficiency in space-constrained designs. |
| PMBus Interface | Provides read/write access to telemetry (VOUT, IOUT, TEMP), configuration registers, and fault logs - enables runtime tuning and diagnostics in development and field service. |
| Programmable Switching Frequency | Configurable from 300 kHz to 1000 kHz via resistor or SMBus - balances EMI, efficiency, and component size without changing layout. |
Applications
| Laptop CPU Core Power | Ultrabook GT/IO Rail |
|---|---|
Use Scenario: High-performance mobile computing platform requiring dynamic voltage scaling and thermal-aware power management. IC Role / Device Role / Timing Role: Primary VR12.5-compliant buck controller managing CPU core voltage (VCC) with 3-phase interleaving and SVID-based real-time VID updates. Use Value: Enables Intel Turbo Boost and SpeedStep functionality while maintaining ±0.5% output accuracy under transient loads up to 300 A/μs. | Use Scenario: Dual-rail power architecture in fanless ultrabooks where GPU and system agent share dedicated regulation. IC Role / Device Role / Timing Role: Secondary output channel regulating GT/IO voltage (VCCGT) independently, synchronized to core rail via internal timing alignment. Use Value: Reduces cross-rail interference and supports independent AVP slopes - critical for simultaneous CPU/GPU burst workloads. |
| 2-in-1 Convertible Platform | Thin-and-Light Gaming Laptop |
Use Scenario: Hinge-flexible device with aggressive thermal envelope and variable power states (tablet/laptop modes). IC Role / Device Role / Timing Role: Dual-output controller supporting mode-aware voltage profiles - adjusts VCC/VCCGT setpoints and phase count based on SVID thermal alerts. Use Value: Extends battery life by dynamically shedding phases during light loads and enabling fast wake-from-sleep (<100 μs response to VID change). | Use Scenario: Compact gaming laptop requiring sustained CPU/GPU performance under thermal throttling constraints. IC Role / Device Role / Timing Role: High-current 3-phase controller delivering up to 60 A per phase with integrated over-temperature and over-current protection. Use Value: Maintains stable 1.2 V @ 120 A core rail during sustained turbo bursts - validated per Intel IMVP7 transient load step requirements (25–75% load, 300 A/μs). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output, IMVP-compliant CPU power controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS59641RSLT | Includes integrated MOSFET drivers (vs. external driver requirement for TPS59640RSLT); same SVID interface and VR12.5 compliance. | Reduces BOM count and layout area but increases thermal dissipation in controller IC; suited for lower-current or thermally relaxed designs. | Select TPS59641RSLT when gate driver integration simplifies design; choose TPS59640RSLT when discrete driver selection is needed for optimized FET switching or thermal partitioning. |
| ISL95855IRZ | Single-chip VR12.5 controller + drivers; supports up to 2+1 phase; lacks PMBus telemetry and has fixed 500 kHz switching frequency. | Targeted at cost-sensitive mainstream laptops; no real-time telemetry or frequency tuning - limits debug and field analytics capability. | Choose ISL95855IRZ for entry-level platforms where SVID compliance and basic phase control suffice; retain TPS59640RSLT for premium designs requiring telemetry, programmability, and thermal robustness. |
Compared with TPS59641RSLT and ISL95855IRZ, the TPS59640RSLT offers superior design flexibility through external gate driver control, full PMBus visibility, and wider frequency tuning - making it preferred for high-end mobile platforms demanding debuggability, thermal resilience, and long-term firmware-upgradable power management.
Availability
TPS59640RSLT is available at Aetrix Electronics and suitable for laptop CPU VRMs, ultrabook dual-rail power systems, and 2-in-1 convertible platforms requiring stable component supply, IMVP7 compliance, and long-lifecycle support.
Supply support for TPS59640RSLT 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 company headquartered in Dallas, Texas, specializing in analog, embedded processing, and power management technologies with over 90 years of innovation in electronics infrastructure.
The TPS596xx product line was developed specifically to meet Intel's VR12.5/IMVP7 specification for mobile CPU voltage regulator modules - targeting high-efficiency, digitally controlled, thermally robust power delivery in thin-and-light computing devices.
FAQ
What is the primary function of the TPS59640RSLT in a laptop power system?
The TPS59640RSLT serves as a dual-output, 3-phase synchronous buck controller that regulates CPU core (VCC) and GT/IO (VCCGT) voltages in Intel-based mobile platforms. It implements VR12.5/IMVP7 protocol via SVID interface, enabling real-time voltage scaling, adaptive positioning, and telemetry reporting. Its design ensures precise, low-noise power delivery under dynamic load transients typical of modern laptop CPUs.
Does the TPS59640RSLT require a confidentiality agreement to use?
Yes - the TPS59640RSLT is designed under a strict disclosure agreement with Intel and requires end users to maintain an active CNDA (Corporate Non-Disclosure Agreement) with Intel. TI mandates this for access to full documentation, reference designs, and SVID implementation guidance. Contact [email protected] to verify eligibility before design-in.
What package type and thermal characteristics does the TPS59640RSLT use?
The TPS59640RSLT uses a VQFN-48 (RSL) package measuring 6 mm × 6 mm with 0.4 mm pitch and an exposed thermal pad (pin 48). It is rated for –40°C to 105°C operating ambient temperature and supports JEDEC Level-1 moisture sensitivity with unlimited peak reflow at 260°C - enabling standard SMT assembly in high-volume laptop manufacturing.
Can the TPS59640RSLT operate without external gate drivers?
No - the TPS59640RSLT is a controller-only device and requires external high- and low-side gate drivers (e.g., TI UCC27201 or equivalent) to drive the power MOSFETs in each phase. Unlike the pin-compatible TPS59641RSLT, it does not integrate drivers, allowing designers to optimize switching performance, thermal distribution, and FET selection independently.
What telemetry and configuration interfaces does the TPS59640RSLT support?
The TPS59640RSLT supports a full PMBus 1.2 interface for read/write access to real-time telemetry (output voltage, current, die temperature), fault logs, and configuration registers. It also implements Intel's SVID v3.0 interface for processor-controlled VID updates, thermal alerts, and power-state coordination - both interfaces operate concurrently without conflict.
TPS59640RSLT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- D-CAP+™
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Controller, Intel IMVP-7
- Voltage - Input:
- 3V ~ 28V
- Number of Outputs:
- 2
- Voltage - Output:
- 0.25V ~ 1.52V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-VQFN (6x6)
TPS59640RSLT FAQ
1.How can I place an order for TPS59640RSLT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS59640RSLT 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 TPS59640RSLT reliable?
The price and inventory of TPS59640RSLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS59640RSLT is usually 5 days.
3.What payment methods are accepted for TPS59640RSLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS59640RSLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS59640RSLT?
TPS59640RSLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS59640RSLT 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 TPS59640RSLT?
For technical support, including TPS59640RSLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS59640RSLT requirements.
6.How does Aetrix verify that TPS59640RSLT is sourced from the original manufacturer or authorized distributors?
All TPS59640RSLT 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 TPS59640RSLT meets industry standards.
7.What is the process for return or replacement of TPS59640RSLT?
All TPS59640RSLT units undergo pre-shipment inspection (PSI). If there is an issue with TPS59640RSLT, 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 TPS59640RSLT part is unused and in its original packaging.
Return procedure for TPS59640RSLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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