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Texas Instruments TPS62352YZGR
- Part No.:
- TPS62352YZGR
- Manufacturer:
- Texas Instruments
- Package:
- 12-UFBGA, DSBGA
- Datasheet:
-
TPS62352YZGR.pdf
- Description:
- IC REG BUCK ADJ 800MA 12DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,335
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Product details
Overview
TPS62352YZGR from Texas Instruments is a 3-MHz synchronous step-down DC-DC converter with I²C-compatible interface, delivering up to 800 mA output current from 2.7 V–5.5 V input, featuring ±2% PWM DC voltage accuracy, 35-ns minimum on-time, and 28-µA quiescent current in Light PFM mode-designed for core power in smartphones and low-voltage DSPs.
For engineers reviewing the TPS62352YZGR datasheet, TPS62352YZGR pinout, TPS62352YZGR application, or TPS62352YZGR equivalent, key selection considerations include its 10-pin QFN (3×3 mm) package, I²C programmable output (0.75 V–1.4375 V), 3-MHz fixed-frequency operation, efficiency-optimized power-save modes, and SmartReflex™ compliance for dynamic voltage scaling in battery-powered portable systems.
Technical Context
The TPS62352YZGR integrates a 3-MHz oscillator with PLL-based timing control and supports three operating modes-Light PFM (efficiency-optimized), Fast PFM (transient-optimized), and Forced PWM-selected via I²C or pin configuration. Its dual MOSFET power stage uses internal P-channel and N-channel switches with typical rDS(on) of 250 mΩ and 150 mΩ respectively at 3.6 V.
Feedback is sensed through the FB pin referenced to a 0.4-V internal bandgap, enabling precise regulation across load (0–800 mA) and line (2.7–5.5 V) variations. The 6-bit DAC provides 12.5-mV voltage steps, and the SYNC pin allows on-the-fly synchronization to external clocks within 2.65–3.35 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7 V to 5.5 V - supports single-cell Li-ion battery operation with UVLO at 2.3 V. |
| Output Voltage Range | 0.75 V to 1.4375 V - programmable in 12.5-mV steps via 6-bit I²C DAC for core rail scaling. |
| Max Output Current | 800 mA - sustained at VI ≥ 2.7 V, enabling direct supply to ARM Cortex-A8 or OMAP processors. |
| Switching Frequency | 3 MHz (±10%) - enables use of 1-µH inductors and 10-µF ceramic capacitors for ultra-thin PCB profiles. |
| Quiescent Current | 28 µA (typ.) in Light PFM - extends battery runtime during idle/sleep states in mobile devices. |
| DC Voltage Accuracy | ±2% in PWM mode - ensures stable core voltage under full load, critical for processor clock stability. |
| Min On-Time | 35 ns - supports high VIN-to-VOUT conversion ratios (e.g., 5.5 V → 0.75 V) without pulse skipping. |
Pinout & Package
TPS62352YZGR is packaged in a 10-pin QFN (3 mm × 3 mm, 0.5-mm pitch) with exposed PowerPAD™ thermally connected to PGND. Pin 1 is PVIN; Pin 10 is SW; Pin 9 is shared PGND; Pin 8 is AGND; no thermal pad connection outside PGND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVIN | Power input for high-side switch | Connects directly to input bulk capacitor; handles peak switching currents up to 1.3 A. |
| AVIN | Analog input supply | Provides bias for control circuitry; must be decoupled separately from PVIN to reduce noise coupling. |
| EN | Enable control input | Active-high logic; rising edge resets I²C registers to defaults and initiates soft-start sequence. |
| VSEL | Mode select / voltage scale input | Hardware-selects between active/sleep modes; also used with I²C to set output voltage range. |
| SDA | I²C bidirectional data line | Supports Fast/Standard/High-Speed modes up to 3.4 Mbps; requires external pull-up resistor. |
| SCL | I²C clock input | Drives serial interface timing; compatible with TI's SmartReflex™ host controllers for DVFS coordination. |
| FB | Feedback sense input | Monitors regulated output via resistive divider; internal reference is 0.4 V, enabling wide VOUT range. |
| AGND | Analog ground reference | Separate from PGND to isolate sensitive analog circuitry from high di/dt power return paths. |
| PGND | Power ground return | Common return for both MOSFETs and SW node; must be tied to AGND under IC for EMI control. |
| SW | Switch node | Connects to external inductor; carries high-frequency square wave (0 to VIN); requires tight layout. |
Key Features
| Feature | Design Value |
|---|---|
| I²C interface up to 3.4 Mbps | Enables real-time dynamic voltage scaling (DVS) for OMAP/ARM processors without MCU intervention. |
| Efficiency-optimized Light PFM mode | Maintains >80% efficiency at 1-mA loads, extending standby time in always-on smartphone subsystems. |
| Transient-optimized Fast PFM mode | Reduces output voltage deviation to <30 mVPP during 100-mA load steps, preserving DSP core stability. |
| SmartReflex™ compliance | Integrates seamlessly with TI application processors for closed-loop adaptive voltage/frequency management. |
| 1-mm component profile solution | QFN-10 + 1-µH inductor + dual 10-µF ceramics fits ≤1.0-mm board thickness constraints in slim handsets. |
Applications
| Mobile Application Processor Core Supply | Low-Power DSP Voltage Rail |
|---|---|
Use Scenario: Powering ARM Cortex-A8 or OMAP3 core in smartphone SoC during active and idle states. IC Role / Device Role / Timing Role: Primary buck regulator providing dynamically scaled core voltage (0.75–1.4375 V) synchronized to processor DVFS requests. Use Value: Achieves 88% efficiency at 3 MHz and 500-mA load, reducing thermal load while enabling sub-1-mm Z-height designs. | Use Scenario: Supplying voltage to TI C55x or ADI SHARC DSP cores requiring precise, low-noise 1.05–1.2 V rails. IC Role / Device Role / Timing Role: High-transient-response buck converter with Fast PFM mode activated during compute bursts. Use Value: Limits output ripple to 12 mVPP under 1-mA Light PFM load, ensuring clean analog subsystem operation. |
| Smartphone Baseband PMIC Subsystem | Portable Media Player ASIC Core |
Use Scenario: Delivering regulated voltage to Qualcomm or MediaTek baseband processors with rapid load transients. IC Role / Device Role / Timing Role: Secondary buck stage controlled via I²C by main PMIC, supporting multi-rail sequencing. Use Value: 35-ns minimum on-time enables stable 1.05-V output from 4.2-V battery, eliminating need for intermediate LDOs. | Use Scenario: Powering video decode ASIC in handheld media players requiring 0.9–1.15 V at up to 800 mA. IC Role / Device Role / Timing Role: Standalone I²C-programmable buck converter with hardware VSEL override for boot-time voltage lock. Use Value: 28-µA quiescent current in Light PFM extends playback time by >12% versus conventional 1-MHz converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62351YZG | Wider output range (0.9–1.6875 V); default 1.10 V/1.50 V; same QFN-10/CSP-12 packaging. | Targeted at higher-core-voltage DSPs (e.g., XSCALE); lacks 0.75-V floor needed for advanced ARM cores. | Select when system requires >1.4375 V nominal output or tighter 1.50-V default setting. |
| TPS62353YZG | Output range 0.75–1.5375 V; default 1.00 V/1.20 V; identical electrical specs and pinout. | Optimized for dual-voltage SoCs needing 1.0-V core + 1.2-V I/O; shares same footprint and control interface. | Choose for designs requiring 1.0-V default core rail with identical transient performance and layout reuse. |
Compared with TPS62351YZG and TPS62353YZG, the TPS62352YZGR offers the narrowest upper output limit (1.4375 V) ideal for low-voltage ARM cores, retains identical 3-MHz operation and I²C timing, and enables drop-in replacement where 1.05 V/1.20 V factory defaults match system requirements.
Availability
TPS62352YZGR is available at Aetrix Electronics and suitable for smartphone power management, portable media player ASIC supplies, and OMAP/ARM processor core rails requiring stable component supply with full I²C configurability and SmartReflex™ interoperability.
Supply support for TPS62352YZGR 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 leader specializing in analog, embedded processing, and digital signal technologies for industrial, automotive, and consumer applications.
The TPS6235x product line delivers high-frequency, I²C-programmable buck converters optimized for battery-powered portable electronics-specifically targeting dynamic voltage scaling in smartphones, PDAs, and handheld computing platforms.
FAQ
What is the default output voltage of the TPS62352YZGR?
The TPS62352YZGR has a factory-default output voltage of 1.05 V (roof) and 1.20 V (floor), set by internal VSEL0/VSEL1 register bits. These values are fixed per ordering option and cannot be altered without I²C reprogramming. The device supports full 0.75 V–1.4375 V range via 6-bit DAC, with 12.5-mV resolution.
Does the TPS62352YZGR support synchronization to an external clock?
Yes, the TPS62352YZGR supports external clock synchronization via the SYNC pin, accepting input frequencies from 2.65 MHz to 3.35 MHz with 20%–80% duty cycle. This enables phase alignment with system clocks or noise-sensitive RF sections, reducing beat frequencies without requiring changes to the TPS62352YZGR's internal oscillator.
What package type is used for the TPS62352YZGR?
The TPS62352YZGR uses a 10-pin QFN package (3 mm × 3 mm, 0.5-mm pitch) with an exposed PowerPAD™ thermally connected to PGND. It is distinct from the CSP-12 variant (e.g., TPS62352YZG) and requires specific land pattern and solder stencil design per TI's SLVS540E datasheet.
How does the TPS62352YZGR manage efficiency across light and heavy loads?
The TPS62352YZGR employs three automatic operating modes: Light PFM (28-µA IQ, >80% efficiency at 1 mA), Fast PFM (optimized for load transients), and Forced PWM (fixed 3-MHz switching). Mode selection occurs dynamically based on load current or can be locked via I²C CONTROL1 register, ensuring optimal efficiency from microamps to 800 mA.
Is the TPS62352YZGR compatible with SmartReflex™ technology?
Yes, the TPS62352YZGR is explicitly designed as a SmartReflex™-compliant power supply. It interfaces directly with TI OMAP and other SmartReflex™-enabled processors via its I²C bus, supporting dynamic voltage and frequency scaling commands, status reporting, and coordinated power-state transitions without external glue logic.
TPS62352YZGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-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):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.75V (1.05V, 1.2V)
- Voltage - Output (Max):
- 1.44V
- Current - Output:
- 800mA
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-DSBGA
TPS62352YZGR FAQ
1.How can I place an order for TPS62352YZGR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62352YZGR 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 TPS62352YZGR reliable?
The price and inventory of TPS62352YZGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62352YZGR is usually 5 days.
3.What payment methods are accepted for TPS62352YZGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62352YZGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62352YZGR?
TPS62352YZGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62352YZGR 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 TPS62352YZGR?
For technical support, including TPS62352YZGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62352YZGR requirements.
6.How does Aetrix verify that TPS62352YZGR is sourced from the original manufacturer or authorized distributors?
All TPS62352YZGR 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 TPS62352YZGR meets industry standards.
7.What is the process for return or replacement of TPS62352YZGR?
All TPS62352YZGR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62352YZGR, 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 TPS62352YZGR part is unused and in its original packaging.
Return procedure for TPS62352YZGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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