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Texas Instruments TPS62361BYZHT
- Part No.:
- TPS62361BYZHT
- Manufacturer:
- Texas Instruments
- Package:
- 16-UFBGA, DSBGA
- Datasheet:
-
TPS62361BYZHT.pdf
- Description:
- IC REG BUCK ADJ 2.5A 16DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:469
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Product details
Overview
TPS62361BYZHT from Texas Instruments is a 3A synchronous step-down DC-DC converter with I²C interface, optimized for battery-powered processors. It delivers programmable output voltage from 0.5V to 1.77V in 10mV steps, operates at 2.5MHz switching frequency, supports differential remote sensing, and targets smartphone application processors requiring dynamic voltage scaling.
For engineers reviewing the TPS62361BYZHT datasheet, TPS62361BYZHT pinout, TPS62361BYZHT application, or TPS62361BYZHT equivalent, key selection criteria include its 0.5–1.77V I²C-programmable VOUT range, ±0.5% output accuracy over temperature, DCS-Control™ transient response, and NanoFree™ 2mm × 2mm CSP-16 package with integrated PGND/AGND separation.
Technical Context
The TPS62361BYZHT implements a DCS-Control™ architecture combining voltage-mode control with fast transient compensation via an error amplifier and ramp generator. Its dual-MOSFET synchronous rectification uses low-RDS(on) P-channel high-side (25–75 mΩ) and N-channel low-side (25–50 mΩ) switches to minimize conduction loss across load range.
It integrates dedicated hardware pins (VSEL0/VSEL1) for preset voltage transitions and supports three I²C modes (Standard/Fast/High-Speed up to 3.4 MHz), enabling real-time DVFS coordination with host processors. Differential SENSE+ and SENSE− inputs provide precise load-point regulation independent of PCB trace resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current | 3A peak, 2.5A continuous - supports burst-mode CPU loads without thermal derating in compact layouts. |
| Input voltage range | 2.5V to 5.5V - compatible with single-cell Li-ion, Li-polymer, and USB-powered systems. |
| Output voltage range | 0.5V to 1.77V in 10mV steps - enables fine-grained dynamic voltage scaling for submicron processors. |
| Switching frequency | 2.5MHz typical - allows use of small 0.47µH or 1µH inductors and <25mm² total solution size. |
| Output voltage accuracy | ±0.5% (TPS62361B variant) - ensures core voltage compliance under load, line, and temperature variation. |
| Quiescent current | 56µA in PFM mode - extends battery life during processor retention/idle states. |
| Thermal shutdown | 150°C with 20°C hysteresis - protects silicon integrity during sustained overload or poor PCB thermal design. |
Pinout & Package
The TPS62361BYZHT is housed in a 16-bump, 2mm × 2mm NanoFree™ CSP package with exposed PGND pad for thermal dissipation. Pin layout follows a 4×4 grid with dedicated analog/digital ground separation and differential sense routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AVIN | Analog supply input | Provides clean bias for internal analog circuitry; decoupling required near pin to suppress noise coupling into feedback path. |
| SENSE+ | Positive remote sense | Connects directly to load's VDD rail to compensate for IR drop in power delivery network. |
| SENSE− | Negative remote sense | Connects directly to load's GND reference point to close high-accuracy feedback loop at point-of-load. |
| SCL/SDA | I²C interface | Supports high-speed (3.4 MHz) bidirectional communication for real-time VOUT reprogramming and status monitoring. |
| VSEL0/VSEL1 | Hardware voltage select | Enable four factory-preset output voltages without I²C traffic-critical for fast performance/retention mode transitions. |
| PGND | Power ground | Three dedicated pins (A4, C4, D4) minimize ground bounce and improve EMI performance under high di/dt switching. |
Key Features
| Feature | Design Value |
|---|---|
| Differential remote sensing | Compensates for up to 100mΩ PCB trace resistance between converter and load, maintaining ±0.5% regulation at point-of-load. |
| DCS-Control™ architecture | Delivers <10µs transient response to 1A load steps while maintaining <15mV undershoot/overshoot at 1.2V output. |
| I²C programmable slew rate | RAMP[2:0] register controls voltage transition speed from 0.25 to 32 mV/µs - prevents logic glitches during DVFS transitions. |
| Integrated soft-start | Internal 1ms startup time with monotonic VOUT ramp - eliminates inrush current and avoids brownout on system power-up. |
| Multi-level protection | Includes over-temperature shutdown (150°C), input UVLO (2.45V AVIN trip), and cycle-by-cycle current limiting (3.6A typical). |
Applications
| Smartphone Application Processor Core | Tablet SoC DVFS Supply |
|---|---|
Use Scenario: Powering ARM Cortex-A series cores in LTE smartphones during burst-mode operation with rapid frequency/voltage scaling. IC Role / Device Role / Timing Role: Primary core voltage regulator with I²C-controlled VOUT updates synchronized to CPU P-state transitions. Use Value: Enables >20% reduction in active power consumption via precise 10mV-step voltage scaling while maintaining <15mV transient deviation. | Use Scenario: Supplying dual-core application processors in Android tablets with simultaneous multi-threaded workloads. IC Role / Device Role / Timing Role: High-efficiency point-of-load regulator using differential sensing to maintain 1.0V ±10mV at SoC VDD pins under 0–3A dynamic load. Use Value: Achieves >90% efficiency at 1A load and 3.6V input, extending usable battery runtime by 45 minutes per charge cycle. |
| SmartReflex™-Compliant Power System | Low-Power DSP Voltage Rail |
Use Scenario: Implementing TI SmartReflex™ dynamic power management in handheld computers with voltage/frequency adaptive logic. IC Role / Device Role / Timing Role: Programmable supply responding to host controller commands to shift between performance (1.36V), nominal (1.16V), and retention (0.96V) voltage points. Use Value: Hardware VSEL pins enable <500ns voltage transitions - faster than I²C-only alternatives, meeting SmartReflex™ timing requirements. | Use Scenario: Powering TI C6000-series DSPs in portable medical imaging devices requiring ultra-stable 1.2V core voltage. IC Role / Device Role / Timing Role: Precision-regulated supply with ±0.5% DC accuracy and <5mV AC ripple to prevent bit errors in high-speed ADC/DAC interfaces. Use Value: Differential sensing and DCS-Control™ reduce output voltage drift to <3mV over full temperature range (–40°C to 85°C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62363YZHT | Same package and pinout; wider 0.5–1.77V VOUT range but different factory presets (1.20V/1.36V/1.50V/1.00V vs. TPS62361B's 0.96V/1.40V/1.16V/1.16V). | Optimized for higher nominal operating points; less suitable for ultra-low-voltage retention modes below 1.0V. | Select TPS62363YZHT when target system requires 1.50V performance mode and tighter factory-set granularity above 1.2V. |
| TPS62865ARQYR | Higher 6A rating, 4MHz switching, smaller 1.45mm × 1.45mm QFN; no VSEL pins; I²C only for programming. | Targets next-gen high-performance SoCs with larger current demands; lacks hardware-triggered voltage transitions. | Choose TPS62865ARQYR for future-proof designs needing >3A headroom and minimal footprint, accepting software-only DVFS control. |
Compared with TPS62363YZHT and TPS62865ARQYR, the TPS62361BYZHT uniquely balances 3A capability, hardware-accelerated voltage transitions via VSEL pins, and ultra-compact 2mm × 2mm packaging-making it optimal for space-constrained smartphone platforms requiring sub-1V retention modes.
Availability
TPS62361BYZHT is available at Aetrix Electronics and suitable for smartphone application processors, tablet SoC power rails, and SmartReflex™-compliant systems requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TPS62361BYZHT 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, embedded processing, and digital signal technologies for industrial, automotive, and consumer markets.
The TPS6236x family was designed specifically for battery-powered mobile processors requiring dynamic voltage scaling, remote sensing, and ultra-small footprint - addressing the power delivery challenges of sub-28nm application processors.
FAQ
What is the maximum continuous output current supported by the TPS62361BYZHT?
The TPS62361BYZHT supports 2.5A continuous output current per recommended operating conditions. While it delivers up to 3A peak current for short durations aligned with processor burst loads, sustained operation above 2.5A may impact device lifetime due to thermal stress. The datasheet specifies 2.5A as the continuous rating to ensure reliable operation within the 125°C junction temperature limit under typical PCB thermal conditions.
Does the TPS62361BYZHT require external components for basic operation?
Yes, the TPS62361BYZHT requires an external inductor (0.47µH or 1µH), input capacitor (≥10µF), output capacitor (≥10µF), and 0.1µF high-frequency bypass capacitors on AVIN and VDD. It also needs pull-up resistors on SCL/SDA lines for I²C communication and proper termination of VSEL0/VSEL1 pins if hardware preset selection is used. No external compensation network is needed due to its internally compensated DCS-Control™ architecture.
How does the differential remote sensing function in the TPS62361BYZHT improve regulation accuracy?
The TPS62361BYZHT uses dedicated SENSE+ and SENSE− pins to measure voltage directly at the load terminals, closing the feedback loop at the point-of-load rather than at the IC's output pins. This compensates for voltage drop across PCB traces and package inductance, enabling ±0.5% output accuracy even with up to 100mΩ total path resistance. The internal 2.2MΩ input impedance minimizes loading error on the sense lines.
Can the TPS62361BYZHT operate without I²C communication enabled?
Yes, the TPS62361BYZHT can operate without I²C. Its default output voltage is set by the VSEL0 and VSEL1 pin states at power-up, selecting one of four factory-programmed values (0.96V, 1.40V, 1.16V, or 1.16V). I²C is optional for dynamic reprogramming during operation; all protection features, regulation, and startup behavior remain fully functional without I²C initialization.
What thermal performance can be expected from the TPS62361BYZHT in a standard 2-layer PCB layout?
In a JEDEC-standard high-K board layout, the TPS62361BYZHT exhibits a junction-to-ambient thermal resistance (θJA) of 94.8°C/W. At 2.5A output with 3.6V input and 1.2V output, typical power dissipation is ~350mW, resulting in ~33°C junction-to-ambient rise. With proper copper pour and thermal vias under the PGND pad, junction temperature remains well below the 125°C maximum under continuous load at 25°C ambient.
TPS62361BYZHT 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, 1.16V, 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)
TPS62361BYZHT FAQ
1.How can I place an order for TPS62361BYZHT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62361BYZHT 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 TPS62361BYZHT reliable?
The price and inventory of TPS62361BYZHT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62361BYZHT is usually 5 days.
3.What payment methods are accepted for TPS62361BYZHT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62361BYZHT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62361BYZHT?
TPS62361BYZHT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62361BYZHT 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 TPS62361BYZHT?
For technical support, including TPS62361BYZHT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62361BYZHT requirements.
6.How does Aetrix verify that TPS62361BYZHT is sourced from the original manufacturer or authorized distributors?
All TPS62361BYZHT 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 TPS62361BYZHT meets industry standards.
7.What is the process for return or replacement of TPS62361BYZHT?
All TPS62361BYZHT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62361BYZHT, 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 TPS62361BYZHT part is unused and in its original packaging.
Return procedure for TPS62361BYZHT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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