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Texas Instruments TPS62361BYZHR
- Part No.:
- TPS62361BYZHR
- Manufacturer:
- Texas Instruments
- Package:
- 16-UFBGA, DSBGA
- Datasheet:
-
TPS62361BYZHR.pdf
- Description:
- IC REG BUCK ADJ 2.5A 16DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,360
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Product details
Overview
TPS62361BYZHR from Texas Instruments is a 3A synchronous step-down DC-DC converter with I²C interface and remote sensing, designed for low-voltage processor cores in smartphones and handheld computers. It operates from 2.5V–5.5V input, delivers 0.5V–1.77V output in 10mV steps, features DCS-Control™ architecture, and achieves up to 95% efficiency at 1A with 2.5MHz switching frequency.
For engineers reviewing the TPS62361BYZHR datasheet, TPS62361BYZHR pinout, TPS62361BYZHR application, or TPS62361BYZHR equivalent, key selection criteria include its programmable slew rate, differential remote sense capability, thermal shutdown (150°C), ±0.5% output voltage accuracy over temperature, and NanoFree™ 2mm × 2mm CSP-16 package with integrated power ground pads.
Technical Context
The TPS62361BYZHR implements a high-frequency synchronous buck topology with integrated high-side (44mΩ typ.) and low-side (32mΩ typ.) MOSFETs, controlled by DCS-Control™ architecture that combines voltage-mode control with fast transient response via direct output voltage feedback. Its dual-loop regulation uses differential remote sense inputs (SENSE+, SENSE−) to compensate for PCB IR drop, ensuring precise load-point regulation.
Control logic supports three operating modes-Power Save Mode (PFM) for light loads, forced PWM for noise-sensitive applications, and automatic PFM/PWM transition-managed via I²C (up to 3.4MHz high-speed mode) or hardware pins (VSEL0/VSEL1). The device integrates soft-start, programmable voltage ramp (0.25–32mV/µs), and comprehensive protection including overtemperature (150°C with 20°C hysteresis), input UVLO (2.45V rising), and current limiting (3.6A peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 3A peak, 2.5A continuous - supports modern application processor burst loads without thermal derating in compact layouts. |
| Output Voltage Range | 0.5V to 1.77V in 10mV steps - enables fine-grained dynamic voltage scaling for ARM Cortex-A series and similar low-VDD cores. |
| Switching Frequency | 2.5MHz typical - allows use of small 0.47µH–1µH inductors and <25mm² total solution size. |
| Output Voltage Accuracy | ±0.5% (no load, forced PWM, TJ = –40°C to 150°C) - ensures reliable operation of sub-1V digital logic under worst-case thermal and line conditions. |
| I²C Interface | High-speed mode up to 3.4MHz - enables rapid voltage transitions (<100µs for 1V step) required for performance state changes in SmartReflex™-compliant systems. |
| Thermal Protection | 150°C shutdown with 20°C hysteresis - prevents silicon damage during sustained overload or poor PCB thermal design. |
| Package | 16-bump NanoFree™ CSP, 2mm × 2mm - ultra-compact footprint compatible with fine-pitch mobile PCB assembly. |
Pinout & Package
The TPS62361BYZHR is housed in a 2mm × 2mm, 16-bump NanoFree™ chip-scale package (CSP-16) with exposed PGND bumps for low-inductance power return and thermal conduction to the PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AVIN | Analog supply input | Provides clean bias for internal analog circuits; must be decoupled near package with 0.1µF ceramic capacitor. |
| EN | Enable logic input | Active-high enable with internal 300kΩ pulldown; asserts shutdown when pulled low, drawing ≤5µA from AVIN. |
| VDD | I²C and register supply | Supplies 1.15V–3.6V to I²C interface and control logic; UVLO threshold is 0.92V (rising). |
| SCL/SDA | I²C serial interface | Supports standard/fast/high-speed modes; requires external pull-ups to VDD; timing compliant per TI SLVSAU9C spec. |
| VSEL0/VSEL1 | Hardware voltage preset select | Two-pin binary encoding for four factory-programmed output voltages (e.g., 0.96V, 1.40V, 1.16V, 1.16V for TPS62361B). |
| SENSE+/SENSE− | Differential remote sense inputs | Connect directly to load power/ground nodes to cancel PCB trace resistance error; input impedance 2.2MΩ. |
| VIN/PGND/AGND/SW | Main power path terminals | VIN (2.5–5.5V), SW (switch node to 0.47µH inductor), PGND (power ground, 3 pins), AGND (analog ground, isolated return). |
Key Features
| Feature | Design Value |
|---|---|
| DCS-Control™ Architecture | Combines fast transient response (<10µs settling for 1A load step) with stable regulation across input/output variations, eliminating need for external compensation. |
| Programmable Output Slew Rate | Configurable via RMP[2:0] bits (000–111) from 0.25mV/µs to 32mV/µs - prevents system-level voltage droop/surge during DVFS transitions. |
| Differential Remote Sensing | Compensates for up to 50mV IR drop between converter and load, maintaining ±0.5% regulation at point-of-load under full 3A current. |
| Ultra-Low Quiescent Current | 56µA in PFM mode at no load - extends battery runtime in retention/idle states of mobile SoCs. |
| NanoFree™ Packaging | Chip-scale construction eliminates wirebonds and mold compound, reducing thermal resistance (θJA = 94.8°C/W) and enabling 0.4mm pitch assembly. |
Applications
| Smartphone Application Processor Core Supply | Tablet SoC Dynamic Voltage Scaling |
|---|---|
Use Scenario: Powering ARM Cortex-A7/A53 cores in LTE smartphones requiring real-time voltage adjustment between performance and power-saving states. IC Role / Device Role / Timing Role: Primary buck regulator delivering 0.6V–1.4V to CPU cluster with I²C-controlled DVFS transitions synchronized to OS scheduler events. Use Value: Achieves >90% efficiency at 10mA–3A load range and maintains ±0.5% output accuracy using differential remote sense, enabling reliable sub-1V operation. | Use Scenario: Supplying dual-core application processors in 7–10 inch tablets where thermal density and board area are constrained. IC Role / Device Role / Timing Role: High-current, high-efficiency point-of-load regulator with 2.5MHz switching to minimize inductor size and EMI filtering requirements. Use Value: 2mm × 2mm CSP package and <25mm² total solution size allow integration beneath processor BGA, reducing interconnect inductance and improving transient response. |
| SmartReflex™-Compliant Power System | Low-Power DSP Core Supply |
Use Scenario: Implementing TI SmartReflex™ Level 3 power management in OMAP-based handhelds requiring autonomous voltage/frequency coordination. IC Role / Device Role / Timing Role: I²C-configurable voltage rail responding to host processor commands for adaptive voltage scaling with programmable ramp rates. Use Value: Hardware VSEL pins provide fallback voltage presets during I²C bus failure, ensuring system bootability and functional safety. | Use Scenario: Powering TI C674x or ADI SHARC DSPs in portable medical or audio devices needing precise, low-noise 1.0V–1.2V core rails. IC Role / Device Role / Timing Role: Low-ripple, high-PSRR buck converter operating in forced PWM mode to avoid beat frequencies with sensitive analog circuitry. Use Value: ±0.5% DC accuracy and <0.05%/A load regulation ensure stable clock generation and ADC reference integrity across operating conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62363YZHR | Same family, identical 0.5V–1.77V output range and I²C interface, but factory-programmed with different default VOUT presets (1.20V/1.36V/1.50V/1.00V). | Direct substitute where alternate voltage sequencing or boot-up defaults are required; same pinout and layout. | Select when specific factory-set output voltages better match target SoC initialization requirements. |
| TPS62400DRVR | 3A buck with I²C, but wider 2.5V–6V input, fixed 1.8V/1.2V dual outputs, no remote sense, and 3mm × 3mm WSON package. | Used in multi-rail systems where secondary fixed outputs simplify power tree; lacks differential sensing for precision load regulation. | Choose for cost-sensitive designs needing dual outputs without remote sense, accepting larger footprint and lower accuracy. |
Compared with TPS62361BYZHR, TPS62363YZHR offers identical performance and compatibility with only differing factory voltage presets, while TPS62400DRVR trades remote sensing and package size for dual-output convenience and broader input range-making it suitable for non-processor applications where load-point accuracy is less critical.
Availability
TPS62361BYZHR is available at Aetrix Electronics and suitable for smartphone processor core supplies, tablet SoC dynamic voltage scaling, and SmartReflex™-compliant power systems requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for TPS62361BYZHR 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 connectivity technologies for industrial, automotive, and consumer markets.
The TPS6236x product line was engineered specifically for battery-powered mobile processors, emphasizing ultra-small form factor, high efficiency across wide load ranges, and intelligent digital control to enable advanced power management in space-constrained handheld devices.
FAQ
What is the recommended input capacitor for TPS62361BYZHR?
The TPS62361BYZHR datasheet specifies a minimum 10µF X5R/X7R ceramic input capacitor placed close to VIN and PGND pins. A 0.1µF high-frequency bypass capacitor is also required between AVIN and AGND. These values ensure stable operation across 2.5V–5.5V input and suppress switching noise coupling into analog circuitry. Using lower capacitance risks increased input ripple and potential UVLO triggering during high di/dt load transients.
Does TPS62361BYZHR support true differential remote sensing?
Yes, TPS62361BYZHR implements true differential remote sensing via dedicated SENSE+ and SENSE− pins with 2.2MΩ input impedance. This configuration actively measures voltage directly at the load, rejecting PCB trace resistance errors up to ±25mΩ, and maintains ±0.5% output regulation accuracy even with 50mV IR drop - a capability confirmed in the SLVSAU9C datasheet Section 7.3 and Figure 15–17.
What is the maximum supported I²C clock frequency for TPS62361BYZHR?
The TPS62361BYZHR supports I²C high-speed mode up to 3.4MHz (with CB ≤ 100pF), as specified in Table 3 of the SLVSAU9C datasheet. Standard (100kHz) and fast (400kHz) modes are also fully compliant. Operation above 3.4MHz is not characterized or guaranteed; exceeding this limit may cause communication failures or register corruption due to timing violations in SCL/SDA rise/fall times.
How does the TPS62361BYZHR handle thermal overload?
The TPS62361BYZHR incorporates thermal shutdown at TJ = 150°C with 20°C hysteresis (TJSD,HYST). When junction temperature exceeds 150°C, the device disables switching and enters thermal shutdown. It remains latched off until temperature falls below 130°C, then automatically resumes operation. This behavior is documented in the Absolute Maximum Ratings and Electrical Characteristics tables of the SLVSAU9C datasheet and protects against permanent silicon damage during sustained overload or inadequate PCB cooling.
Can TPS62361BYZHR operate without I²C configuration?
Yes, TPS62361BYZHR can operate without I²C configuration using hardware VSEL0/VSEL1 pins to select one of four factory-programmed output voltages (0.96V, 1.40V, 1.16V, 1.16V). EN pin control enables/disables regulation independently. I²C is optional for dynamic reprogramming; all default settings, protection features, and DCS-Control™ regulation remain fully functional in standalone mode.
TPS62361BYZHR 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)
TPS62361BYZHR FAQ
1.How can I place an order for TPS62361BYZHR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62361BYZHR 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 TPS62361BYZHR reliable?
The price and inventory of TPS62361BYZHR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62361BYZHR is usually 5 days.
3.What payment methods are accepted for TPS62361BYZHR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62361BYZHR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62361BYZHR?
TPS62361BYZHR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62361BYZHR 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 TPS62361BYZHR?
For technical support, including TPS62361BYZHR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62361BYZHR requirements.
6.How does Aetrix verify that TPS62361BYZHR is sourced from the original manufacturer or authorized distributors?
All TPS62361BYZHR 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 TPS62361BYZHR meets industry standards.
7.What is the process for return or replacement of TPS62361BYZHR?
All TPS62361BYZHR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62361BYZHR, 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 TPS62361BYZHR part is unused and in its original packaging.
Return procedure for TPS62361BYZHR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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