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Texas Instruments TPS62302YZDT
- Part No.:
- TPS62302YZDT
- Manufacturer:
- Texas Instruments
- Package:
- 8-UFBGA, DSBGA
- Datasheet:
-
TPS62302YZDT.pdf
- Description:
- IC REG BUCK 1.6V 500MA 8DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,445
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Product details
Overview
TPS62302YZDT from Texas Instruments is a 3-MHz synchronous step-down DC-DC converter in an 8-pin NanoFree™ CSP package, delivering 1.6 V at up to 500 mA output current with 2.7–6 V input range. It features power-save mode (PFM/PWM), 86 µA quiescent current, and ±0.5%/+1.3% DC voltage accuracy over temperature-optimized for Li-Ion/NiMH-powered portable devices like smartphones and PDAs.
For engineers reviewing the TPS62302YZDT datasheet, TPS62302YZDT pinout, TPS62302YZDT application, or TPS62302YZDT equivalent, key selection criteria include its fixed 1.6 V output, CSP-8 footprint, 35 ns minimum on-time, 3-MHz synchronization capability, and integrated active power-down sequencing (shared with TPS6232x family variants).
Technical Context
The TPS62302YZDT employs a voltage-mode PWM controller with input voltage feed-forward for fast transient response and supports automatic PFM/PWM mode transition based on load. Its dual MOSFET current limits (P-MOS: 670–890 mA; N-MOS: ±460–740 mA) ensure stable operation during low-duty-cycle and start-up conditions.
It integrates a 3-MHz oscillator with ±0.35 MHz tolerance, supports external synchronization via MODE/SYNC pin (2.65–3.35 MHz range), and uses a 0.4 V internal reference with direct-drive capability when ADJ is externally biased-though ADJ is unconnected in this fixed-output variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.6 V - eliminates need for external feedback resistors; matches core voltage requirements of TMS320 DSP and low-voltage microcontrollers. |
| Max Output Current | 500 mA - sufficient for baseband processors and RF transceivers in handheld applications without thermal derating on standard PCBs. |
| Input Voltage Range | 2.7 V to 6 V - supports single-cell Li-Ion (2.7–4.2 V) and 3-cell NiMH/NiCd (3.6–4.5 V) battery inputs with margin. |
| Switching Frequency | 3 MHz (±0.35 MHz) - enables use of sub-1 µH inductors and 4.7 µF ceramic capacitors, reducing solution size to <10 mm². |
| Quiescent Current | 86 µA in PFM mode - extends battery runtime in standby/sleep states of always-on mobile peripherals. |
| DC Voltage Accuracy | −0.5% / +1.3% over −40°C to +85°C - ensures reliable logic-level compliance across industrial temperature range. |
| Shutdown Current | <1 µA - meets ultra-low-power system-level shutdown requirements for battery-backed subsystems. |
Pinout & Package
TPS62302YZDT is packaged in an 8-pin NanoFree™ Chip Scale Package (CSP), measuring 1.5 mm × 1.5 mm with 0.5 mm pitch and bottom-side solder balls. The package provides minimal board area usage and enhanced thermal performance via direct die attachment to PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Main supply rail connection; must be decoupled with ≥4.7 µF ceramic capacitor near package. |
| EN | Enable control | Active-high logic input; pull to GND for shutdown (<1 µA IQ); requires no external pull-up. |
| MODE/SYNC | Mode selection & sync input | Pull to GND for auto PFM/PWM; pull to VIN for forced PWM; accept 2.65–3.35 MHz external clock for multi-rail synchronization. |
| FB | Feedback sense | Internally connected to 0.4 V reference; not accessible-fixed output eliminates external resistor divider. |
| VOUT | Regulated output | Power delivery node; connect directly to load and output capacitor; low-ESR ceramic cap required (≥4.7 µF). |
| PGND | Power ground | High-current return path for switch node; must be tied to solid ground plane under package. |
| SW | Switch node | Drain connection of internal P/N-MOSFET pair; routes to external inductor; sensitive to layout parasitics. |
| AGND | Analog ground | Reference ground for internal error amplifier and bandgap; internally tied to PGND via PowerPAD™ structure. |
Key Features
| Feature | Design Value |
|---|---|
| 3-MHz fixed-frequency operation | Enables compact filter design with 0.9–2.2 µH inductors and 4.7–10 µF X5R/X7R ceramics-reducing total BOM footprint by >40% vs. 1-MHz converters. |
| Power-save mode (PFM) | Maintains >85% efficiency down to 1 mA load, extending battery life in intermittent-activity applications like Bluetooth LE sensors. |
| 100% duty cycle capability | Supports dropout operation as low as VI − VO = 0.1 V, critical for maintaining regulation near battery end-of-discharge (e.g., 3.0 V → 1.6 V). |
| Integrated soft-start | Controls inrush current during power-up, limiting peak input current to prevent brownout in shared battery rails. |
| Synchronization-ready MODE/SYNC pin | Allows deterministic phase alignment of multiple TPS623xx converters-essential for noise-sensitive RF sections in smartphones. |
Applications
| Smartphone Baseband Power | USB-Powered DSL Modem |
|---|---|
|
Use Scenario: Powers ARM9/ARM11 application processor cores requiring stable 1.6 V at up to 400 mA during burst data transmission. IC Role / Device Role / Timing Role: Primary point-of-load regulator with fast line/load transient response (<50 µs recovery) and low-noise PWM mode for EMI-sensitive RF coexistence. Use Value: Delivers 93% peak efficiency at 3.6 V input, minimizing thermal load in sealed handset enclosures. |
Use Scenario: Supplies 1.6 V to ADSL2+ PHY ICs in compact USB dongles where space and thermal headroom are constrained. IC Role / Device Role / Timing Role: Standalone buck converter replacing discrete LDO solutions; operates from 5 V USB bus with 3-MHz switching to avoid audio-band noise. Use Value: Achieves full 500 mA output with only 1.5 mm × 1.5 mm CSP footprint-enabling single-layer PCB designs. |
| Digital Camera Image Sensor Bias | Portable Medical Glucose Meter |
|
Use Scenario: Provides clean 1.6 V bias to CMOS image sensor analog front-end during high-speed frame capture sequences. IC Role / Device Role / Timing Role: Low-noise regulated supply with forced PWM mode (MODE/SYNC = VI) to suppress switching frequency harmonics near sensor readout timing. Use Value: 35 ns minimum on-time supports high VIN/VOUT ratios (e.g., 5 V → 1.6 V), enabling direct USB input without pre-regulation. |
Use Scenario: Powers microcontroller and electrochemical sensor interface in battery-operated glucose meters requiring >5-year shelf life. IC Role / Device Role / Timing Role: Ultra-low-quiescent (86 µA) buck converter with shutdown current <1 µA-preserving CR2032 coin cell capacity during long idle periods. Use Value: Maintains ±1.3% output accuracy across −20°C to +70°C operating range, ensuring consistent ADC reference stability. |
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 |
|---|---|---|---|
| TPS62303YZD | Fixed 1.8 V output; identical CSP-8 package, pinout, and electrical specs except FB voltage setpoint. | Targets higher-core-voltage SoCs (e.g., OMAP-L1x) where 1.8 V is required instead of 1.6 V. | Select TPS62303YZD only when system architecture mandates 1.8 V; no PCB change needed but firmware voltage scaling may differ. |
| TPS62321YZD | Fixed 1.5 V output; shares same CSP-8 footprint and MODE/SYNC functionality, but optimized for lower-VDD microcontrollers. | Used in ultra-low-power MCU subsystems (e.g., MSP430FRxx) where 1.5 V improves active power efficiency. | Choose TPS62321YZD for 1.5 V rail consolidation; verify load transient response meets 100 mA/µs slew rate requirements. |
Compared with TPS62302YZDT, TPS62303YZD offers higher output voltage for legacy 1.8 V logic families, while TPS62321YZD targets newer 1.5 V domains-both retain identical thermal performance, package, and synchronization capability, enabling drop-in voltage-scaling upgrades without layout revision.
Availability
TPS62302YZDT is available at Aetrix Electronics and suitable for smartphone baseband power, USB-powered DSL modems, digital camera sensor bias, and portable medical glucose meters requiring stable component supply with guaranteed long-term sourcing.
Supply support for TPS62302YZDT 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 connectivity technologies, with decades of expertise in power management IC design.
The TPS623xx family was engineered for ultra-compact, high-efficiency DC-DC conversion in battery-constrained portable electronics-prioritizing minimal solution size, wide input range, and seamless PFM/PWM transitions.
FAQ
What is the output voltage of the TPS62302YZDT and is it adjustable?
The TPS62302YZDT provides a fixed 1.6 V output voltage. It is not adjustable-the FB pin is internally connected to the 0.4 V reference, and the ADJ pin is unconnected per datasheet specifications. External resistor dividers cannot modify the output, making it a dedicated 1.6 V solution for compatible SoCs and microcontrollers.
Does the TPS62302YZDT support external clock synchronization?
Yes, the TPS62302YZDT supports external clock synchronization via the MODE/SYNC pin, which accepts input signals from 2.65 MHz to 3.35 MHz. When driven by an external clock, the device locks its switching edge to the falling edge of that signal-enabling deterministic phase alignment across multiple rails in noise-sensitive systems like smartphones.
What package type and dimensions does the TPS62302YZDT use?
The TPS62302YZDT uses an 8-pin NanoFree™ Chip Scale Package (CSP) with bottom-terminal solder balls. Its footprint measures 1.5 mm × 1.5 mm with 0.5 mm ball pitch. This ultra-compact package minimizes PCB area and improves thermal coupling to the board, supporting high-density portable designs.
How does the TPS62302YZDT manage efficiency at light loads?
The TPS62302YZDT automatically enters power-save mode (PFM) at light loads, reducing switching frequency and quiescent current to 86 µA. This maintains >85% efficiency down to 1 mA output, significantly extending battery life in standby or intermittent-operation scenarios such as Bluetooth LE beacons or sensor nodes.
What is the minimum input-to-output voltage differential supported by the TPS62302YZDT?
The TPS62302YZDT supports 100% duty cycle operation, allowing it to regulate with a minimum input-to-output differential of approximately 0.1 V at light loads. At 1.6 V output, this enables regulation down to ~1.7 V input-critical for sustaining operation near the end-of-discharge voltage of single-cell Li-Ion batteries.
TPS62302YZDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-UFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.6V
- Voltage - Output (Max):
- -
- Current - Output:
- 500mA
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DSBGA
TPS62302YZDT FAQ
1.How can I place an order for TPS62302YZDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62302YZDT 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 TPS62302YZDT reliable?
The price and inventory of TPS62302YZDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62302YZDT is usually 5 days.
3.What payment methods are accepted for TPS62302YZDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62302YZDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62302YZDT?
TPS62302YZDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62302YZDT 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 TPS62302YZDT?
For technical support, including TPS62302YZDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62302YZDT requirements.
6.How does Aetrix verify that TPS62302YZDT is sourced from the original manufacturer or authorized distributors?
All TPS62302YZDT 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 TPS62302YZDT meets industry standards.
7.What is the process for return or replacement of TPS62302YZDT?
All TPS62302YZDT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62302YZDT, 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 TPS62302YZDT part is unused and in its original packaging.
Return procedure for TPS62302YZDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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