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Texas Instruments TPS62302YZDR
- Part No.:
- TPS62302YZDR
- Manufacturer:
- Texas Instruments
- Package:
- 8-UFBGA, DSBGA
- Datasheet:
-
TPS62302YZDR.pdf
- Description:
- IC REG BUCK 1.6V 500MA 8DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,226
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Product details
Overview
TPS62302YZDR from Texas Instruments is a 500-mA, 3-MHz synchronous step-down DC-DC converter in an 8-pin CSP package, delivering fixed 1.6 V output from 2.7–6 V input. It features 86-µA quiescent current, 35-ns minimum on-time, and power-save mode operation for high efficiency across light-to-heavy loads. Designed for space-constrained portable electronics, it powers core logic in smart-phones and PDAs using tiny 1-µH inductors and 4.7-µF ceramic capacitors.
For engineers reviewing the TPS62302YZDR datasheet, TPS62302YZDR pinout, TPS62302YZDR application, or TPS62302YZDR equivalent, key selection criteria include its 1.6-V fixed output, NanoFree™ CSP-8 packaging, 3-MHz switching frequency with on-the-fly synchronization capability, PFM/PWM auto-mode transition, and integrated active power-down sequencing support (shared with TPS6232x family).
Technical Context
The TPS62302YZDR employs voltage-mode control with input voltage feed-forward to achieve best-in-class load and line transient response. Its dual MOSFET current-limit architecture-780 mA P-channel and 720 mA N-channel-ensures stable operation during low-duty-cycle conditions and startup.
It operates in fixed-frequency 3-MHz PWM mode under moderate/heavy loads and automatically transitions to pulse-frequency modulation (PFM) at light loads via a -1.5% VOUT(NOMINAL) threshold comparator. The MODE/SYNC pin supports three states: GND (auto PFM/PWM), VI (forced PWM), or external 2.65–3.35 MHz clock input for synchronized multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.6 V ±1.3% over –40°C to 85°C - enables direct powering of 1.6-V I/O or core rails without external feedback resistors. |
| Input Voltage Range | 2.7 V to 6 V - supports single-cell Li-ion (2.7–4.2 V), 3-cell NiMH/NiCd (3.6 V nominal), and USB-powered systems. |
| Switching Frequency | 3 MHz (±0.35 MHz) - allows use of sub-1-mm-height 1-µH inductors and reduces EMI fundamental frequency above sensitive bands. |
| Max Output Current | 500 mA continuous - sufficient for ARM Cortex-A/M cores, baseband processors, and RF transceivers in handheld devices. |
| Quiescent Current | 86 µA in PFM mode - extends battery runtime in standby/sleep states without sacrificing wake-up responsiveness. |
| Efficiency Peak | 93% at 3.6 VIN/1.6 VOUT, 100 mA - achieved via low RDS(on) (420 mΩ P-MOS, 330 mΩ N-MOS) and optimized gate drive. |
| Shutdown Current | <1 µA - meets ultra-low-power system-level shutdown requirements for mobile applications. |
Pinout & Package
TPS62302YZDR is packaged in an 8-pin Chip Scale Package (CSP-8), measuring 1.5 mm × 1.5 mm with 0.5-mm pitch, featuring bottom-side solder bumps for minimal PCB footprint and thermal resistance (θJA = 250°C/W). This NanoFree™ package eliminates wire bonds and reduces parasitic inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Connects directly to input bypass capacitor; supplies power stage; rated for 2.7–6 V, up to 7 V absolute max. |
| EN | Enable control | Active-high logic input; must be terminated (not floating); pulls device into shutdown when grounded. |
| ADJ | Adjust reference input | Not connected on fixed-output TPS62302YZDR; internal connection disabled per datasheet guidance. |
| FB | Feedback sense | Not connected on fixed-output version; internal divider sets 1.6 V; external resistor network omitted. |
| VOUT | Output sense | Connected to converter output node; provides feedback path for regulation loop; requires local ceramic decoupling. |
| MODE/SYNC | Mode control / sync input | Configures PFM/PWM auto-switching (GND), forced PWM (VI), or external clock sync (2.65–3.35 MHz square wave). |
| PGND | Power ground | Primary return path for high-current switch node; must be low-inductance connection to PCB ground plane. |
| SW | Switch node | Drain connection of internal P/N-MOSFETs; connects to inductor; requires tight layout to minimize ringing and EMI. |
Key Features
| Feature | Design Value |
|---|---|
| 3-MHz fixed-frequency operation | Enables use of miniature 1-µH chip inductors and 4.7-µF X5R/X7R ceramics, reducing solution size to <10 mm². |
| Power-save mode with PFM | Maintains >85% efficiency down to 1 mA load by skipping pulses, critical for always-on sensor and RTC subsystems. |
| On-the-fly frequency synchronization | Allows multiple TPS623xx converters to share one master clock, eliminating beat frequencies and simplifying EMI filtering. |
| 100% duty cycle capability | Supports ultra-low dropout operation (e.g., 1.6 VOUT from 1.8 VIN), extending usable battery range in Li-ion discharge tail. |
| Integrated active power-down sequencing | Provides controlled output discharge via 30–50 Ω internal resistor (shared with TPS6232x), preventing backfeed in multi-rail systems. |
Applications
| Smartphone Application Processor Core Rail | Bluetooth® Baseband Power Supply |
|---|---|
Use Scenario: Powers ARM Cortex-A8/A9 core voltage domain in compact smartphone designs with strict height constraints. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering stable 1.6 V at up to 500 mA with fast load transient response. Use Value: 35-ns minimum on-time and voltage-mode feed-forward enable sub-10-µs recovery from 100→400 mA load steps, preventing core brownouts. |
Use Scenario: Supplies regulated 1.6 V to Bluetooth baseband ICs in wearables and headset modules. IC Role / Device Role / Timing Role: Low-noise, low-quiescent power supply supporting sleep/wake cycling and burst data transmission. Use Value: 86-µA quiescent current and automatic PFM mode extend battery life in intermittent-traffic applications without compromising RF performance. |
| PDA Memory Interface Voltage | USB-Powered DSL Modem PHY |
Use Scenario: Generates 1.6 V for low-voltage DDR/SDRAM interfaces in legacy PDA and industrial handheld terminals. IC Role / Device Role / Timing Role: High-efficiency point-of-load regulator with tight DC accuracy (±1.3%) across temperature. Use Value: –0.5% to +1.3% DC voltage accuracy ensures memory timing margins remain within spec across –40°C to 85°C ambient. |
Use Scenario: Provides clean 1.6 V rail for Ethernet PHY and ADSL line driver ICs in USB-powered DSL modems. IC Role / Device Role / Timing Role: Input-capable buck converter accepting 4.75–5.25 V USB input and rejecting ripple/noise. Use Value: 3-MHz switching moves noise spectrum away from USB 480 Mbps signaling band and DSL upstream frequencies. |
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 |
|---|---|---|---|
| TPS62303YZDR | Fixed 1.8 V output; identical CSP-8 package, pinout, and electrical specs except FB voltage and UVLO threshold (2.4 V vs 2.4 V). | Targets 1.8-V I/O domains (e.g., SDIO, camera interface) rather than 1.6-V core logic; same thermal and layout compatibility. | Select when system requires 1.8 V instead of 1.6 V; no PCB changes needed due to identical footprint and pin function mapping. |
| TPS62321DRCR | QFN-10 package (3×3 mm); fixed 1.5 V output; shares 3-MHz operation, PFM/PWM mode, and 500-mA rating but differs in thermal resistance (49°C/W vs 250°C/W). | Better suited for higher-power or thermally demanding applications where board area permits larger QFN; not CSP-compatible. | Choose for improved thermal performance in industrial or extended-temperature environments; requires layout revision for QFN-10 footprint. |
Compared with TPS62302YZDR, TPS62303YZDR offers identical form-factor and functionality at 1.8 V for I/O rails, while TPS62321DRCR trades nano-package size for superior thermal dissipation in QFN-10-making the former ideal for space-constrained mobile designs and the latter better for sustained 500-mA loads in non-mobile applications.
Availability
TPS62302YZDR is available at Aetrix Electronics and suitable for smartphone processor core rails, Bluetooth® baseband supplies, PDA memory interfaces, and USB-powered DSL modem PHYs requiring stable component supply, consistent NanoFree™ CSP-8 sourcing, and long-term production continuity.
Supply support for TPS62302YZDR 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, with decades of expertise in power management ICs for portable and industrial systems.
The TPS623xx family was engineered specifically for battery-powered portable electronics, emphasizing ultra-small solution size, high efficiency across wide load ranges, and seamless integration with low-voltage processors and RF subsystems.
FAQ
What is the output voltage tolerance of the TPS62302YZDR over temperature?
The TPS62302YZDR delivers a fixed 1.6 V output with DC voltage accuracy of –0.5% to +1.3% across the full operating temperature range of –40°C to 85°C. This specification applies under typical conditions (VI = 3.6 V, IO = 100 mA, MODE/SYNC = GND) and ensures reliable operation for core logic rails without external trimming components.
Does the TPS62302YZDR require external feedback resistors?
No, the TPS62302YZDR does not require external feedback resistors because it is a fixed-output variant. Its internal feedback divider is factory-trimmed to regulate precisely at 1.6 V. The ADJ and FB pins are internally disconnected per datasheet guidance for this part number, eliminating resistor placement and associated tolerance errors.
Can the TPS62302YZDR be synchronized to an external clock?
Yes, the TPS62302YZDR supports on-the-fly synchronization to an external clock signal applied to the MODE/SYNC pin. It accepts square-wave inputs in the 2.65–3.35 MHz range with 20–80% duty cycle, enabling precise frequency alignment across multiple converters in multi-rail systems to suppress beat frequencies and simplify EMI mitigation.
What is the maximum continuous output current capability of the TPS62302YZDR?
The TPS62302YZDR supports up to 500 mA of continuous output current under recommended operating conditions (VI ≥ 2.7 V, TA ≤ 85°C, proper PCB thermal design). This rating is validated with 1-µH inductor and 4.7-µF output capacitance, and remains stable across input voltages from 2.7 V to 6 V.
How does the TPS62302YZDR manage efficiency at light loads?
The TPS62302YZDR automatically enters power-save mode (pulse-frequency modulation) at light loads, reducing switching frequency and quiescent current to 86 µA. This maintains >85% efficiency down to 1 mA load, unlike forced-PWM converters that suffer steep efficiency drop-offs below 10 mA, making it ideal for always-on subsystems.
TPS62302YZDR 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
TPS62302YZDR FAQ
1.How can I place an order for TPS62302YZDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62302YZDR 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 TPS62302YZDR reliable?
The price and inventory of TPS62302YZDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62302YZDR is usually 5 days.
3.What payment methods are accepted for TPS62302YZDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62302YZDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62302YZDR?
TPS62302YZDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62302YZDR 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 TPS62302YZDR?
For technical support, including TPS62302YZDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62302YZDR requirements.
6.How does Aetrix verify that TPS62302YZDR is sourced from the original manufacturer or authorized distributors?
All TPS62302YZDR 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 TPS62302YZDR meets industry standards.
7.What is the process for return or replacement of TPS62302YZDR?
All TPS62302YZDR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62302YZDR, 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 TPS62302YZDR part is unused and in its original packaging.
Return procedure for TPS62302YZDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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