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STMicroelectronics PM6652TR
- Part No.:
- PM6652TR
- Manufacturer:
- STMicroelectronics
- Category:
- Special Purpose Regulators
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
PM6652TR.pdf
- Description:
- IC REG CTRLR VR11 1OUT 32VFQFPN
- Quantity:
- Payment:
- Shipping:
Inventory:1,404
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Product details
Overview
PM6652TR from STMicroelectronics is a single-phase, constant-on-time (COT) step-down SMPS controller designed for Intel® IMVP6.5 GPU/CPU and VR11 Atom® CPU voltage regulation. It features a 7-bit VID DAC, lossless DCR current sensing, programmable droop, and remote voltage sensing - delivering precise core voltage control in mobile notebooks and netbooks with input range 4.5–36 V, output range 0.3–1.5 V, and thermal throttling support.
For engineers reviewing the PM6652TR datasheet, PM6652TR pinout, PM6652TR application, or PM6652TR equivalent, key selection criteria include IMVP6.5/VR11 mode compatibility, COT transient response performance, integrated high-/low-side gate drivers, differential remote sensing capability, and thermal throttling implementation using the THERM/VRTT# interface.
Technical Context
The PM6652TR implements a constant-on-time PWM architecture with embedded integrator-based ripple compensation to correct DC voltage error caused by output ripple. Its dual-mode operation supports both IMVP6.5 render/core states and VR11 Atom® CPU configurations via VID bit mapping and DPRSLPVR/CLKEN# pin control.
It integrates high- and low-side MOSFET gate drivers (HGATE/LGATE), supports lossless inductor DCR sensing and precision RSENSE current monitoring, and delivers pulse-skipping at light load while maintaining tight ±0.5% VCORE accuracy across temperature and line/load variations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 36 V - supports wide-input battery and adapter supplies in mobile platforms. |
| Output Voltage Range | 0.3 V to 1.5 V - matches Intel IMVP6.5 and VR11 CPU/GPU core voltage requirements. |
| VID Resolution | 7-bit dynamic voltage identification - enables fine-grained voltage scaling for power-state transitions. |
| Control Architecture | Constant-on-time (COT) with ripple compensation - ensures fast load transient response without external loop compensation. |
| Current Sensing | Lossless DCR + optional RSENSE - eliminates sense resistor power loss while enabling accurate IMON reporting and droop control. |
| Thermal Protection | Latched overtemperature shutdown + open-drain VRTT# indicator - provides fail-safe thermal throttling coordination with system firmware. |
| Gate Drivers | Integrated high-/low-side drivers (HGATE/LGATE) - drives external N-channel MOSFETs without external driver ICs. |
Pinout & Package
PM6652TR is housed in a VFQFPN-32 5 × 5 mm package with exposed pad (EP), optimized for thermal dissipation in space-constrained mobile applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VRTT# | Thermal throttling indicator | Open-drain output asserted during thermal throttling; interfaces directly with CPU throttle input. |
| 2 THERM | Thermal monitoring input | Connects to NTC thermistor divider midpoint to enable real-time junction temperature feedback. |
| 3 GSNS / 4 VSNS | Remote voltage sense inputs | Differential pair for Kelvin sensing at CPU/GPU VDD pins - eliminates PCB IR drop errors. |
| 5 CSNS / 6 VOUT | Current sense & feedback node | CSNS is positive input of current comparator; VOUT is negative input - enables droop and IMON functions. |
| 19 LGATE / 23 HGATE | Power MOSFET gate drivers | Drive external low- and high-side N-MOSFETs; HGATE uses BOOT capacitor for level-shifting. |
| 26–32 VID0–VID6 | Voltage identification inputs | 7-bit parallel bus setting DAC output voltage; logic thresholds defined at 0.33 V ('0') and 0.77 V ('1'). |
| 33 EP | Exposed thermal pad | Must be soldered to SGND plane - primary thermal path for junction-to-PCB heat transfer (RthJA = 35 °C/W). |
Key Features
| Feature | Design Value |
|---|---|
| IMVP6.5 & VR11 Mode Selection | Hardware-configurable via CLKEN# and DPRSLPVR pins - enables single controller reuse across Intel GPU, CPU, and Atom® platforms. |
| Programmable Droop Function | Adjustable via ILIM resistor - implements load-line regulation to maintain stable voltage under dynamic current steps (e.g., 5 A → 15 A). |
| Pulse-Skipping in Suspend | Enabled by DPRSLPVR assertion - reduces quiescent current to <1 mA and improves light-load efficiency in mobile standby states. |
| Accurate Current Monitoring | IMON output with ±5% accuracy over –40°C to +125°C - supports system-level power budgeting and OCP diagnostics. |
| Soft-Start & Soft-End Control | Configurable via SSTART pin capacitor - prevents inrush current and enables controlled power-down sequencing with PGOOD coordination. |
Applications
| Intel Mobile GPU Render Core Supply | Intel Mobile CPU Core Supply |
|---|---|
|
Use Scenario: Power delivery to Intel HD Graphics render engine in ultrabooks and thin-and-light notebooks. IC Role / Device Role / Timing Role: Primary voltage regulator controller managing dynamic VDD GFX scaling per IMVP6.5 spec, including fast VID transitions and suspend/resume timing. Use Value: Achieves <10 µs load transient recovery with <±15 mV deviation using COT control and ripple-compensated integrator loop. |
Use Scenario: Core voltage regulation for Intel Core i3/i5 ULV/LV CPUs in mobile platforms requiring IMVP6.5 compliance. IC Role / Device Role / Timing Role: Single-phase buck controller executing dynamic voltage/frequency scaling (DVFS) with synchronized PGOOD and thermal throttling signals. Use Value: Enables >90% peak efficiency at 10 A load and <100 µA shutdown current - extending battery runtime in active/idle states. |
| Intel Atom® VR11 CPU Supply | Notebook System Power Management |
|
Use Scenario: Powering Intel Atom® Z-series processors in netbooks, tablets, and embedded client devices. IC Role / Device Role / Timing Role: VR11-compliant controller implementing 7-bit VID decoding, valley current limiting, and SVCC undervoltage protection. Use Value: Supports VR11-specific startup sequence (e.g., VID step variation ≤10 mV/step) and meets ±0.5% VCORE accuracy over full temperature range. |
Use Scenario: Centralized power management unit coordinating CPU/GPU rail sequencing, thermal events, and system-level power good signaling. IC Role / Device Role / Timing Role: Integrates IMON current monitor, PWRGD status, VRTT# thermal alert, and COREON enable into unified power subsystem. Use Value: Reduces BOM count by eliminating discrete current sense amps, thermal comparators, and sequencing logic ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-phase CPU/GPU voltage regulator controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL6268CRZ-T | Fixed-frequency PWM (not COT); requires external loop compensation; no integrated thermal throttling indicator. | Targets legacy IMVP6 platforms only; lacks VR11 mode support and pulse-skip light-load optimization. | Prefer PM6652TR when IMVP6.5/VR11 dual-mode operation, faster transient response, or thermal coordination is required. |
| RT8802AGQW | Supports IMVP6.5 but not VR11; uses external current sense resistor only (no DCR option); no VRTT# output. | Designed for cost-sensitive notebook GPU rails; missing Atom® CPU support and integrated thermal interface. | Choose PM6652TR for designs needing VR11 compatibility, lower BOM cost via DCR sensing, or hardware thermal throttling handshake. |
Compared with ISL6268CRZ-T and RT8802AGQW, the PM6652TR uniquely combines IMVP6.5 and VR11 mode support in one device, delivers superior transient response via COT+ripple compensation, and integrates thermal throttling signaling - reducing system-level firmware complexity and component count.
Availability
PM6652TR is available at Aetrix Electronics and suitable for Intel mobile GPU render core supplies, Intel mobile CPU core supplies, and Intel Atom® VR11-based devices requiring stable component supply across long-lifecycle notebook and embedded client programs.
Supply support for PM6652TR 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
STMicroelectronics is a global semiconductor leader specializing in power management, microcontrollers, and analog ICs for automotive, industrial, and consumer applications.
The PM6652TR belongs to ST's dedicated CPU/GPU voltage regulator controller product line, engineered specifically to meet Intel's IMVP6.5 and VR11 specifications for mobile computing platforms.
FAQ
What Intel voltage regulation standards does the PM6652TR support?
The PM6652TR natively supports Intel IMVP6.5 for mobile GPU and CPU cores, plus VR11 for Intel Atom® processors. Mode selection is configured via CLKEN# and DPRSLPVR pins, and VID mapping follows Tables 6 and 7 in the datasheet. It implements all required timing, accuracy, and protection features for both standards - including VID step resolution, droop behavior, and suspend-state pulse-skipping.
How is current sensing implemented on the PM6652TR?
The PM6652TR supports two current sensing methods: lossless inductor DCR sensing (using CSNS and VOUT pins) and precision external resistor sensing (RSENSE). DCR sensing eliminates power loss and board area; RSENSE offers higher accuracy at the cost of added component and heat. Both feed the same internal current comparator and enable IMON reporting, droop function, and valley current limiting.
Does the PM6652TR require external compensation components?
No external loop compensation is required. The PM6652TR uses a constant-on-time architecture with an embedded integrator that automatically compensates for output ripple-induced DC voltage error. This eliminates the need for traditional Type II/III compensation networks, simplifying design and improving transient response predictability across operating conditions.
What thermal management features does the PM6652TR provide?
The PM6652TR provides dual thermal interfaces: THERM pin accepts analog voltage from an NTC thermistor divider for real-time temperature monitoring, and VRTT# is an open-drain output asserted during thermal throttling. It also includes latched overtemperature shutdown and thermal throttling coordination with CPU firmware - all implemented without external comparators or logic.
PM6652TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Controller, Intel IMVP-6.5™, VR11
- Voltage - Input:
- 4.5V ~ 36V
- Number of Outputs:
- 1
- Voltage - Output:
- 0.3V ~ 1.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-VFQFPN-EP (5x5)
PM6652TR FAQ
1.How can I place an order for PM6652TR through Aetrix?
Please submit a Request for Quotation (RFQ) for PM6652TR 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 PM6652TR reliable?
The price and inventory of PM6652TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PM6652TR is usually 5 days.
3.What payment methods are accepted for PM6652TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PM6652TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PM6652TR?
PM6652TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PM6652TR 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 PM6652TR?
For technical support, including PM6652TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PM6652TR requirements.
6.How does Aetrix verify that PM6652TR is sourced from the original manufacturer or authorized distributors?
All PM6652TR 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 PM6652TR meets industry standards.
7.What is the process for return or replacement of PM6652TR?
All PM6652TR units undergo pre-shipment inspection (PSI). If there is an issue with PM6652TR, 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 PM6652TR part is unused and in its original packaging.
Return procedure for PM6652TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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