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Texas Instruments TPS62320YEDR
- Part No.:
- TPS62320YEDR
- Manufacturer:
- Texas Instruments
- Package:
- 8-UFBGA, DSBGA
- Datasheet:
-
TPS62320YEDR.pdf
- Description:
- IC REG BUCK ADJ 500MA 8DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,144
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Product details
Overview
TPS62320YEDR from Texas Instruments is an adjustable-output, 3-MHz synchronous step-down DC-DC converter in a 8-pin CSP package, supporting 2.7–6 V input, 0.6–5.4 V output, up to 500 mA load current, and delivering up to 93% efficiency - optimized for space-constrained portable applications such as smart-phones and WLAN modules.
For engineers reviewing the TPS62320YEDR datasheet, TPS62320YEDR pinout, TPS62320YEDR application, or TPS62320YEDR equivalent, key selection criteria include its 35-ns minimum on-time, 86-µA quiescent current in power-save mode, integrated active power-down sequencing, ±0.5%/+1.3% DC voltage accuracy over temperature, and support for external clock synchronization at 3 MHz.
Technical Context
The TPS62320YEDR employs a voltage-mode PWM controller with input voltage feed-forward for fast transient response, enabling use of small 0.9–2.2 µH inductors and ceramic capacitors. It integrates dual MOSFETs (P-channel rDS(on) = 420–750 mΩ, N-channel rDS(on) = 330–750 mΩ) and features automatic PFM/PWM mode transition based on load current.
Its MODE/SYNC pin enables three operational states: auto PFM/PWM (pin grounded), forced PWM (pin high), or external 3-MHz clock synchronization (pin driven by external signal). The device includes undervoltage lockout (2.4 V threshold), thermal shutdown (150°C), and integrated discharge resistor (30–50 Ω) for controlled power-down sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7 V to 6 V - supports single-cell Li-ion or 3-cell NiMH/NiCd battery inputs without pre-regulation. |
| Output Voltage Range | 0.6 V to 5.4 V (adjustable via external resistor divider on ADJ/FB pins) - covers core voltages for DSPs, microprocessors, and RF ICs. |
| Max Output Current | 500 mA - sufficient for powering baseband processors, memory subsystems, or RF front-end bias rails in portable devices. |
| Switching Frequency | 3 MHz (±0.35 MHz) - enables ultra-small passive components and minimizes EMI in noise-sensitive RF sections. |
| Quiescent Current | 86 µA (PFM mode, no load) - extends battery life in always-on low-power states like Bluetooth standby or sensor monitoring. |
| DC Voltage Accuracy | ±0.5% / +1.3% over –40°C to +85°C - ensures stable core voltage under thermal stress without external calibration. |
| Min On-Time | 35 ns - supports high VIN-to-VOUT conversion ratios (e.g., 5 V → 1.2 V) with stable PWM operation at light loads. |
Pinout & Package
TPS62320YEDR is packaged in an 8-pin NanoFree™ Chip Scale Package (CSP), measuring 1.5 mm × 1.5 mm with 0.5-mm pitch, offering minimal PCB footprint and thermal resistance (θJA = 250°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input for switching stage | Connects directly to input bypass capacitor; supplies energy to internal P/N-MOSFETs. |
| EN | Enable control input | Pull high to enable regulation; pull low to enter <1 µA shutdown mode - critical for system-level power gating. |
| ADJ | Adjustable reference input | Accepts external voltage (0.4 V typical) to set output; also supports dynamic voltage scaling when driven externally. |
| FB | Feedback sense input | Monitors output via resistor divider; internal 0.4 V reference enables precise closed-loop regulation. |
| VOUT | Output voltage sense | Direct connection to regulated output node - improves load regulation and compensates for PCB trace IR drop. |
| MODE/SYNC | Mode selection & sync input | GND = auto PFM/PWM; VI = forced PWM; external 3-MHz clock = synchronized operation - enables multi-rail timing coherence. |
| SW | Switch node | Drain connection of internal P/N-MOSFETs - requires careful layout to minimize EMI and ringing. |
| PGND | Power ground | Low-impedance return path for high di/dt switching current - must be connected to thermal pad for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| 3-MHz fixed-frequency operation | Enables use of sub-1-µH inductors and 4.7-µF ceramic capacitors - reduces solution size to <10 mm² total area. |
| Integrated active power-down sequencing | On-chip 30–50 Ω discharge resistor safely collapses output during shutdown - eliminates need for external bleed circuitry. |
| 100% duty cycle capability | Supports ultra-low dropout operation (e.g., 2.8 V → 2.7 V) - maintains regulation during brownout conditions. |
| Power-save mode at light load | Reduces quiescent current to 86 µA while maintaining regulation - extends battery runtime in idle/sleep states. |
| Synchronizable to external 3-MHz clock | Allows phase-aligned switching across multiple rails - reduces beat frequencies and simplifies EMI filtering in multi-converter systems. |
Applications
| Smartphone Baseband Power | WLAN/Bluetooth Coexistence |
|---|---|
|
Use Scenario: Supplying 1.2–1.8 V core voltage to application processors and modems in compact smartphone PCBs. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering tightly regulated, low-noise DC power with fast transient response. Use Value: 93% peak efficiency and 35-ns min on-time enable efficient high-ratio conversion from single Li-ion cell (3.0–4.2 V) to sub-1.5 V cores. |
Use Scenario: Powering 3.3 V RF transceivers and baseband ICs in dual-band WLAN/Bluetooth modules where spectral purity is critical. IC Role / Device Role / Timing Role: Low-EMI, synchronizable DC-DC converter operating in forced PWM mode to avoid frequency beating with RF carriers. Use Value: External clock synchronization eliminates switching frequency jitter and enables deterministic EMI suppression in RF-sensitive zones. |
| Digital Camera Image Sensor Bias | USB-Powered DSL Modem |
|
Use Scenario: Generating clean, low-noise 2.8 V bias for CMOS image sensors requiring stable analog supply under variable illumination loads. IC Role / Device Role / Timing Role: Adjustable-output buck converter with tight DC accuracy (±0.5%) and low ripple in PFM mode. Use Value: ±0.5%/+1.3% DC voltage accuracy over temperature prevents image sensor gain drift; 86-µA quiescent current extends standby time. |
Use Scenario: Providing 1.5 V and 3.3 V rails from USB 5 V input in compact DSL modem adapters with strict thermal limits. IC Role / Device Role / Timing Role: High-efficiency, thermally robust buck converter in CSP package enabling dense, fanless modem designs. Use Value: 250°C/W θJA and integrated thermal shutdown prevent overheating in sealed enclosures; 500 mA output supports full-speed USB 2.0 operation. |
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 |
|---|---|---|---|
| TPS62321YEDR | Fixed 1.5 V output; identical CSP-8 package, pinout, and electrical specs except output voltage. | Eliminates external feedback resistors but lacks adjustability - suitable only for fixed-voltage rails. | Select when board space is constrained and output voltage is fixed; no layout change required. |
| TPS62303YZD | Fixed 1.8 V output in same CSP-8 package; shares 3-MHz operation and 500 mA rating but lacks ADJ/FB pins. | Designed for simpler point-of-load applications where dynamic voltage scaling is unnecessary. | Choose for cost-sensitive, non-adjustable 1.8 V rails - requires different feedback network design than TPS62320YEDR. |
Compared with TPS62321YEDR and TPS62303YZD, the TPS62320YEDR uniquely supports adjustable output via ADJ/FB pins while retaining identical thermal performance, package, and efficiency - making it the only option for systems requiring programmable or dynamically scaled core voltages.
Availability
TPS62320YEDR is available at Aetrix Electronics and suitable for smartphone baseband power, WLAN/Bluetooth coexistence, digital camera image sensor bias, and USB-powered DSL modem applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance.
Supply support for TPS62320YEDR 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 power management technologies, with decades of expertise in high-efficiency DC-DC conversion for portable electronics.
The TPS623xx family was designed specifically for battery-powered portable devices requiring ultra-small footprint, high efficiency across wide load ranges, and advanced power management features like dynamic voltage scaling and synchronized multi-rail operation.
FAQ
What is the recommended inductor value for TPS62320YEDR in a typical 3.6 V to 1.6 V application?
The TPS62320YEDR is optimized for 0.9 µH to 2.2 µH inductors. For a 3.6 V input to 1.6 V output at 500 mA, TI recommends a 0.9 µH shielded inductor (e.g., FDK MIPW3226 series) to maximize efficiency and minimize solution size while maintaining stability under transient loads.
Does TPS62320YEDR support dynamic voltage scaling (DVS) through the ADJ pin?
Yes, the TPS62320YEDR supports dynamic voltage scaling: the ADJ pin accepts an external voltage (0.4 V nominal), and the output voltage equals 1.5× that applied voltage. This allows real-time adjustment of VOUT during operation - for example, stepping from 1.3 V to 1.1 V when processor load decreases.
What is the thermal performance difference between TPS62320YEDR (CSP-8) and TPS62320DRC (QFN-10)?
The TPS62320YEDR in CSP-8 has θJA = 250°C/W, while the QFN-10 variant (TPS62320DRC) achieves 49°C/W due to its larger thermal pad and copper-exposed PowerPAD™. Thus, the QFN version handles higher continuous power dissipation (2050 mW vs. 400 mW), but the CSP offers superior board-area efficiency for ultra-compact designs.
Can TPS62320YEDR be synchronized to a 2.8 MHz or 3.2 MHz external clock?
No - the TPS62320YEDR's MODE/SYNC pin accepts only 2.65–3.35 MHz external clocks per datasheet specifications. Clocks outside this range (e.g., 2.8 MHz or 3.2 MHz) fall within the valid window and will synchronize reliably; however, 2.5 MHz or 3.5 MHz signals will not lock and may cause erratic switching behavior.
Is the TPS62320YEDR pin-compatible with other members of the TPS623xx family in CSP-8 packaging?
Yes - all TPS623xx devices in CSP-8 (e.g., TPS62320YEDR, TPS62321YEDR, TPS62303YZD) share identical 8-pin pinout and footprint. However, functional differences exist: TPS62320YEDR exposes ADJ/FB for adjustability, while fixed-output variants leave those pins unconnected or repurposed - requiring schematic review before substitution.
TPS62320YEDR 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:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.4V
- 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
TPS62320YEDR FAQ
1.How can I place an order for TPS62320YEDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62320YEDR 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 TPS62320YEDR reliable?
The price and inventory of TPS62320YEDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62320YEDR is usually 5 days.
3.What payment methods are accepted for TPS62320YEDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62320YEDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62320YEDR?
TPS62320YEDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62320YEDR 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 TPS62320YEDR?
For technical support, including TPS62320YEDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62320YEDR requirements.
6.How does Aetrix verify that TPS62320YEDR is sourced from the original manufacturer or authorized distributors?
All TPS62320YEDR 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 TPS62320YEDR meets industry standards.
7.What is the process for return or replacement of TPS62320YEDR?
All TPS62320YEDR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62320YEDR, 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 TPS62320YEDR part is unused and in its original packaging.
Return procedure for TPS62320YEDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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