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Texas Instruments TPS62366BYZHR
- Part No.:
- TPS62366BYZHR
- Manufacturer:
- Texas Instruments
- Package:
- 16-UFBGA, DSBGA
- Datasheet:
-
TPS62366BYZHR.pdf
- Description:
- IC REG BUCK ADJ 2.5A 16DSBGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS62366BYZHR from Texas Instruments is a 4A synchronous step-down DC-DC converter in a 2mm × 2mm NanoFree™ CSP-16 package, supporting 2.5V–5.5V input and programmable 0.5V–1.77V output (10mV steps) via I²C interface. It features DCS-Control™ architecture, differential remote sensing, and operates at 2.5MHz switching frequency for smartphone processor core power delivery.
For engineers reviewing the TPS62366BYZHR datasheet, TPS62366BYZHR pinout, TPS62366BYZHR application, or TPS62366BYZHR equivalent, key selection considerations include I²C-programmable voltage scaling, ±0.5% output accuracy over temperature, 2.5A continuous output current rating, thermal shutdown at 150°C, and compatibility with 0.47µH/1µH inductors in sub-25mm² layouts.
Technical Context
The TPS62366BYZHR implements a high-frequency synchronous buck topology with integrated high-side (25–75mΩ) and low-side (25–50mΩ) MOSFETs, enabling 2.5MHz fixed-frequency PWM or auto PFM/PWM operation. Its DCS-Control™ loop combines voltage-mode and hysteretic control for fast transient response and precise DC regulation.
Differential remote sensing (SENSE+/SENSE−) compensates for PCB IR drop, while dedicated VSEL pin enables hardware-triggered voltage transitions for processor performance states. The device supports three I²C modes (Standard/Fast/High-Speed up to 3.4MHz) and includes programmable slew-rate control for output voltage ramping during dynamic voltage scaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 5.5V - supports single-cell Li-ion, Li-polymer, and USB-powered systems without external LDO pre-regulation. |
| Output Voltage Range | 0.5V to 1.77V in 10mV steps - enables fine-grained digital voltage scaling for ARM Cortex-A/R cores and DSPs. |
| Continuous Output Current | 2.5A - validated across –40°C to +85°C ambient, sufficient for mid-tier application processors under sustained load. |
| Switching Frequency | 2.5MHz typical - allows use of compact 0.47µH or 1µH inductors and reduces output capacitor requirements. |
| Output Voltage Accuracy | ±0.5% at TJ = 25°C, –1%/+1% over –40°C to +150°C - ensures stable core voltage under thermal stress and process variation. |
| I²C Interface Speed | Up to 3.4MHz High-Speed mode - enables rapid voltage reconfiguration during DVFS transitions without bus contention. |
| Thermal Shutdown | 150°C with 20°C hysteresis - protects silicon integrity during overload or poor heatsinking in ultra-thin mobile PCBs. |
Pinout & Package
TPS62366BYZHR uses a 16-bump, 2mm × 2mm NanoFree™ chip-scale package (CSP) with bottom-side solder bumps. Thermal performance is optimized via exposed PGND pads (A3, C3, C4, D4) and AVIN/PGND power planes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AVIN (A1) | Analog supply input | Provides clean bias for internal analog circuitry; decoupling required near pin to minimize noise coupling into feedback path. |
| EN (B2) | Enable logic input | Active-HIGH enable with internal 300kΩ pulldown; asserts soft-start and disables switching when LOW. |
| VDD (D1) | I²C and register supply | Must be powered before SCL/SDA; UVLO at 0.7–1.1V enables safe register reset during power sequencing. |
| SCL/SDA (D3/D2) | I²C bidirectional interface | Supports Standard (100kHz), Fast (400kHz), and High-Speed (3.4MHz) modes; requires external pull-ups to VDD. |
| VSEL (C2) | Hardware voltage preset select | Two-state logic input selects factory-programmed output voltages (0.96V/1.40V for TPS62366B variant). |
| SENSE+ / SENSE− (B1/C1) | Differential remote sense inputs | Connect directly to load power/ground nodes to cancel PCB trace resistance effects on output regulation. |
| SW (B3/B4) | Switch node | Drives external inductor; requires low-inductance layout and ceramic output capacitor placement adjacent to SW and PGND. |
| VIN (A4/A3) | Main power input | Accepts 2.5–5.5V; shares current path with PGND pins-requires solid copper pour and multiple vias to inner ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ architecture | Combines fast transient response (<5µs settling for 1A load step) with ±0.5% DC accuracy-critical for sub-1V processor cores. |
| Differential remote sensing | Compensates for up to 50mV IR drop between regulator and load, maintaining regulation accuracy at point-of-load. |
| I²C programmable voltage scaling | Enables real-time adjustment of output voltage in 10mV increments without changing external components or firmware reboot. |
| Programmable slew rate | RAMP[2:0] bits set voltage transition speed from 0.25mV/µs to 32mV/µs-prevents overshoot during aggressive DVFS transitions. |
| Power Save Mode (PFM) | Maintains >85% efficiency at 10mA load-extends battery life during processor idle/retention states in smartphones. |
| Integrated protection suite | Includes overtemperature shutdown (150°C), input UVLO (2.3V/1.3V hysteresis), and current limiting (4.3–5.5A peak). |
Applications
| Smartphone Application Processor Core Supply | Tablet SoC DVFS Power Rail |
|---|---|
Use Scenario: Powering ARM Cortex-A73/A76 cores in LTE/5G smartphones during burst workloads and deep sleep. IC Role / Device Role / Timing Role: Primary core voltage regulator with I²C-controlled dynamic voltage scaling synchronized to CPU frequency changes. Use Value: Enables 0.5V–1.4V output transitions in <100µs while maintaining ±0.5% regulation-reducing dynamic power by up to 40% versus fixed-voltage solutions. |
Use Scenario: Supplying dual-cluster big.LITTLE SoCs in Android tablets during graphics-intensive gaming and video playback. IC Role / Device Role / Timing Role: High-current (2.5A continuous) buck converter with differential sensing to counteract PCB voltage drop across 8-layer boards. Use Value: Delivers stable 0.85V/1.1V outputs with <10mV load transient deviation-preventing CPU throttling during GPU-CPU co-scheduling. |
| SmartReflex™-Compliant DSP Power | Feature Phone Baseband Processor Supply |
Use Scenario: Regulating TI C66x DSP voltage in automotive infotainment systems requiring SmartReflex™ v2.1 compliance. IC Role / Device Role / Timing Role: I²C-configurable power stage implementing adaptive voltage scaling based on real-time DSP activity monitoring. Use Value: Achieves 92% peak efficiency at 1.2V/2A while meeting SmartReflex™ timing specs for voltage transition latency and accuracy. |
Use Scenario: Powering Qualcomm MSM7xxx baseband processors in cost-sensitive feature phones with tight BOM constraints. IC Role / Device Role / Timing Role: Compact 2mm × 2mm buck converter replacing discrete solutions to meet 25mm² solution size target. Use Value: Reduces external component count to <10 parts (including inductor/capacitors)-cutting total solution cost by 22% versus legacy 3mm × 3mm alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency, I²C-programmable buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62366AYZHR | Same package and pinout; factory-programmed output presets: 1.20V/1.16V instead of 0.96V/1.40V. | Optimized for lower-voltage SoCs (e.g., OMAP4) requiring tighter mid-range voltage points. | Select TPS62366AYZHR when system firmware expects default 1.20V startup or requires 1.16V retention mode. |
| TPS62400DRVR | 3MHz switching, 3A continuous, 1.8V–6.5V input, but no I²C interface-uses resistor-based VSET and hardware EN/VSEL only. | Suitable for simpler DVFS implementations where software-controlled voltage changes are not required. | Choose TPS62400DRVR for cost-sensitive designs needing 3A capability without I²C bus overhead or firmware integration. |
Compared with TPS62366AYZHR, the TPS62366BYZHR provides higher flexibility for asymmetric voltage scaling (0.96V/1.40V pair), while TPS62400DRVR trades programmability for reduced BOM count and wider input range-making it viable only where I²C control is unnecessary.
Availability
TPS62366BYZHR is available at Aetrix Electronics and suitable for smartphone application processor core supply, tablet SoC DVFS power rail, and SmartReflex™-compliant DSP power applications requiring stable component supply and full production traceability.
Supply support for TPS62366BYZHR 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 specializing in analog and embedded processing technologies, with leadership in power management ICs for portable electronics.
The TPS62366x product line delivers high-efficiency, small-footprint DC-DC converters for battery-powered devices requiring dynamic voltage scaling, remote sensing, and I²C configurability-targeting smartphone, tablet, and handheld computing platforms.
FAQ
What is the maximum continuous output current supported by the TPS62366BYZHR?
The TPS62366BYZHR is rated for 2.5A continuous output current across the full operating ambient temperature range (–40°C to +85°C). This rating accounts for thermal derating in the 2mm × 2mm NanoFree™ package and assumes proper PCB thermal design with ≥4 thermal vias to inner ground planes. Peak current capability reaches 4.9A in short-duration transients.
Does the TPS62366BYZHR require external compensation components?
No, the TPS62366BYZHR uses TI's proprietary DCS-Control™ architecture, which integrates all necessary compensation within the IC. No external RC networks or type-II/type-III compensators are needed-only input/output capacitors and an inductor are required for stable operation per the recommended 25mm² layout.
How does the differential remote sensing function in the TPS62366BYZHR improve regulation accuracy?
The TPS62366BYZHR monitors voltage directly at the load via SENSE+ and SENSE− pins, rejecting voltage drops across PCB traces and connectors. This maintains ±0.5% output accuracy at the point-of-load-even with 40mΩ total path resistance-whereas standard single-point feedback would incur proportional error.
Can the TPS62366BYZHR operate without an I²C host controller?
Yes. The TPS62366BYZHR supports standalone operation using the VSEL pin to select one of two factory-programmed output voltages (0.96V or 1.40V for the 'B' variant). I²C is optional for dynamic reprogramming; basic enable/disable and voltage selection work with only EN and VSEL logic signals.
What thermal metrics define the TPS62366BYZHR's junction-to-ambient performance?
The TPS62366BYZHR in YZH package has θJA = 94.8°C/W (JEDEC-standard high-K board), θJB = 60°C/W (junction-to-board), and ψJB = 57°C/W (characterization parameter for real-system estimation). These values assume 4 thermal vias under the exposed PGND pads and 1oz copper on inner layers-critical for sustaining 2.5A continuous load at 85°C ambient.
TPS62366BYZHR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- DCS-Control™
- Package/Case:
- 16-UFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable (Programmable)
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.5V (0.96V, 1.4V)
- Voltage - Output (Max):
- 1.77V
- Current - Output:
- 2.5A
- Frequency - Switching:
- 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-DSBGA (2.24x2.16)
TPS62366BYZHR FAQ
1.How can I place an order for TPS62366BYZHR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62366BYZHR 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 TPS62366BYZHR reliable?
The price and inventory of TPS62366BYZHR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62366BYZHR is usually 5 days.
3.What payment methods are accepted for TPS62366BYZHR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62366BYZHR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62366BYZHR?
TPS62366BYZHR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62366BYZHR 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 TPS62366BYZHR?
For technical support, including TPS62366BYZHR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62366BYZHR requirements.
6.How does Aetrix verify that TPS62366BYZHR is sourced from the original manufacturer or authorized distributors?
All TPS62366BYZHR 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 TPS62366BYZHR meets industry standards.
7.What is the process for return or replacement of TPS62366BYZHR?
All TPS62366BYZHR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62366BYZHR, 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 TPS62366BYZHR part is unused and in its original packaging.
Return procedure for TPS62366BYZHR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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