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Texas Instruments TPS62300YZDT
- Part No.:
- TPS62300YZDT
- Manufacturer:
- Texas Instruments
- Package:
- 8-UFBGA, DSBGA
- Datasheet:
-
TPS62300YZDT.pdf
- Description:
- IC REG BUCK ADJ 500MA 8DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,984
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Product details
Overview
TPS62300YZDT from Texas Instruments is an adjustable-output, 3-MHz synchronous step-down DC-DC converter in an 8-pin NanoFree™ CSP package, delivering up to 500 mA output current with 86 µA quiescent current and 93% peak efficiency. It operates from 2.7 V to 6 V input, supports power-save mode (PFM) at light loads, and features 35 ns minimum on-time for low-duty-cycle operation - ideal for Li-Ion–powered portable devices requiring compact, high-efficiency voltage regulation.
For engineers reviewing the TPS62300YZDT datasheet, TPS62300YZDT pinout, TPS62300YZDT application, or TPS62300YZDT equivalent, key selection criteria include its adjustable output range (0.6 V to 5.4 V), 0.4 V feedback reference, ±0.5%/+1.3% DC voltage accuracy over temperature, and compatibility with 1 µH inductors and 4.7 µF ceramic capacitors in space-constrained designs.
Technical Context
The TPS62300YZDT employs a voltage-mode PWM controller with input voltage feed-forward for fast load/line transient response and stable operation with small external components. Its dual MOSFET power stage integrates P-channel (typ. 420 mΩ @ 3.6 V) and N-channel (typ. 330 mΩ @ 3.6 V) switches with independent current limits (780 mA P-MOS, 720 mA N-MOS).
Operation switches automatically between fixed-frequency 3-MHz PWM (moderate/heavy load) and pulse-frequency modulation (PFM) power-save mode (light load), controlled via the MODE/SYNC pin. The device supports on-the-fly synchronization to external 3-MHz clocks and includes undervoltage lockout (2.4 V threshold) and thermal shutdown (150°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| 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 V nominal) battery inputs without pre-regulation. |
| Output Current | 500 mA continuous - sufficient for core logic rails in smartphones, PDAs, and USB DSL modems. |
| Switching Frequency | 3 MHz (±0.35 MHz) - enables use of sub-1 µH inductors and <10 µF ceramic output capacitors for ultra-compact PCB layouts. |
| Feedback Reference | 0.4 V - sets precise output via external resistor divider; enables 0.6 V to 5.4 V adjustable range with minimal error propagation. |
| Quiescent Current | 86 µA in PFM mode - extends battery life in standby/sleep states of portable electronics. |
| DC Output Accuracy | ±0.5% / +1.3% over –40°C to +85°C - ensures stable processor/core voltage under thermal stress without calibration. |
| Shutdown Current | ≤1 µA - meets stringent system-level power-down requirements for always-on subsystems. |
Pinout & Package
TPS62300YZDT 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. This ultra-small footprint enables integration into space-critical mobile applications where QFN-10 is prohibitive.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Main supply rail connection; must be decoupled locally with ≥4.7 µF ceramic capacitor to minimize input ripple and EMI. |
| EN | Enable control | Active-high logic input; pull to GND for <1 µA shutdown, tie to VIN for normal operation; floating not allowed. |
| ADJ | Adjustable output programming | Accepts external voltage divider to set VOUT = 1.5 × VADJ; internal reference disabled; not connected on fixed-output variants. |
| FB | Feedback sense | High-impedance (≥700 kΩ) input monitoring output voltage; connects to resistor divider midpoint for closed-loop regulation. |
| VOUT | Output sense | Direct connection to regulated output node; used for remote sensing to compensate PCB trace IR drop. |
| MODE/SYNC | Mode control & sync input | Pull to GND for auto PFM/PWM; pull to VIN for forced PWM; accept 3-MHz external clock for multi-rail synchronization. |
| PGND | Power ground | Low-impedance return path for switch node current; must be routed separately from AGND and tied at single point. |
| SW | Switch node | Drain connection of internal P/N-MOSFETs; requires tight layout with minimal loop area to reduce EMI and switching losses. |
Key Features
| Feature | Design Value |
|---|---|
| 3-MHz fixed-frequency operation | Enables use of 1 µH inductors and 4.7 µF X5R/X7R ceramics - reduces solution size by >50% vs. 1-MHz converters. |
| Power-save mode (PFM) | Maintains >85% efficiency down to 1 mA load - critical for battery runtime in idle/sensor-monitoring states. |
| 35 ns minimum on-time | Supports 0.6 V output from 2.7 V input (22% duty cycle) without pulse skipping - ensures regulation at ultra-low voltages. |
| Integrated active power-down sequencing | Discharges output via 30–50 Ω internal resistor during shutdown - prevents back-powering of upstream circuitry. |
| 100% duty cycle capability | Allows dropout operation down to VIN – VOUT ≈ 100 mV - extends usable battery range in deep discharge conditions. |
| Thermal shutdown with 20°C hysteresis | Protects against sustained overload or poor heatsinking; automatic recovery avoids system latch-up. |
Applications
| Smartphone Core Rail | USB DSL Modem Power |
|---|---|
Use Scenario: Regulating 1.2 V or 1.5 V core voltage for ARM-based application processors in LTE smartphones with dynamic DVFS. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering tightly regulated, low-noise power to CPU/GPU cores. Use Value: 3-MHz switching minimizes inductor size and enables fast transient response to bursty processor loads without external compensation. |
Use Scenario: Generating 3.3 V or 5 V from 5 V USB input for ADSL line drivers and PHY ICs in compact broadband modems. IC Role / Device Role / Timing Role: High-efficiency intermediate bus converter operating in forced PWM mode to suppress switching noise near sensitive analog front-ends. Use Value: 93% peak efficiency and <1 µA shutdown current extend plug-in modem uptime and reduce thermal dissipation in sealed enclosures. |
| Digital Camera Sensor Bias | Bluetooth/WLAN Module Supply |
Use Scenario: Providing 2.8 V bias to CMOS image sensors with strict ripple requirements (<20 mVPP) and rapid wake-up from sleep. IC Role / Device Role / Timing Role: Low-quiescent-current buck converter supporting sensor power sequencing and fast start-up (<250 µs). Use Value: 86 µA IQ and 250 µs start-up time enable instant-on imaging while preserving battery charge during standby intervals. |
Use Scenario: Supplying 1.8 V or 3.3 V to Bluetooth 5.0 or Wi-Fi 6 companion ICs in wearables with aggressive size constraints. IC Role / Device Role / Timing Role: Ultra-compact CSP buck regulator co-located next to RF module to minimize trace inductance and EMI coupling. Use Value: 1.5 mm × 1.5 mm NanoFree CSP footprint allows direct placement under RF shield, reducing board area by 60% vs. QFN alternatives. |
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 |
|---|---|---|---|
| TPS62320YZDT | Same CSP-8 package and pinout; fixed 1.5 V output (non-adjustable); identical 3-MHz operation and 500 mA rating. | Eliminates external feedback resistors but lacks output flexibility; suited for systems with static core voltage requirements. | Select when design uses fixed 1.5 V rail and seeks simplified BOM; not suitable for dynamically scaled voltages. |
| TPS62303YZDT | Same CSP-8 package and pinout; factory-set 1.8 V output; shares all electrical specs except FB voltage is internally trimmed. | Reduces design validation effort for 1.8 V I/O or memory rails; no ADJ/FB routing required. | Choose for 1.8 V applications needing guaranteed accuracy without external component tolerance effects. |
Compared with TPS62300YZDT, TPS62320YZDT offers plug-and-play 1.5 V regulation but sacrifices adjustability, while TPS62303YZDT provides certified 1.8 V output with tighter initial tolerance - both retain identical thermal performance, package size, and PCB footprint, enabling drop-in substitution only for fixed-voltage use cases.
Availability
TPS62300YZDT is available at Aetrix Electronics and suitable for smartphone power management, wearable sensor modules, and USB-powered communication devices requiring stable component supply across high-mix, low-volume production runs.
Supply support for TPS62300YZDT 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 ICs, with decades of expertise in high-efficiency DC-DC conversion for portable electronics.
The TPS623xx family was engineered specifically for battery-powered handheld devices demanding ultra-small footprints, high light-load efficiency, and robust transient response - targeting smartphones, PDAs, digital cameras, and wireless modules.
FAQ
What is the recommended inductor value for TPS62300YZDT in a typical 3.6 V to 1.6 V application?
The TPS62300YZDT is optimized for 1 µH inductors (e.g., FDK MIPW3226 series) with 4.7 µF ceramic output capacitors. Using 1 µH enables full 3-MHz operation while maintaining <20 mVPP output ripple at 500 mA load and ensuring stable PFM/PWM transition behavior per TI's SLVS528E datasheet Figure 1.
Does TPS62300YZDT support forced PWM mode, and how is it enabled?
Yes, TPS62300YZDT supports forced PWM mode for low-noise operation. Pull the MODE/SYNC pin to VIN (not just logic high) to disable automatic PFM entry and maintain fixed 3-MHz switching across all load currents - essential for RF-sensitive applications like Bluetooth modules where frequency spurs must be filtered predictably.
What is the absolute maximum input voltage rating for TPS62300YZDT, and what happens above this limit?
The absolute maximum input voltage for TPS62300YZDT is 7 V at VIN and SW pins. Exceeding 7 V risks permanent damage to internal P/N-MOSFETs and gate drivers. The device includes undervoltage lockout (UVLO) at 2.4 V but no overvoltage protection - external clamping (e.g., TVS diode) is required if input transients exceed 7 V.
Can TPS62300YZDT be synchronized to an external clock, and what are the timing requirements?
Yes, TPS62300YZDT can be synchronized to an external 3-MHz clock applied to the MODE/SYNC pin. The external signal must have 20%–80% duty cycle and be referenced to PGND. Synchronization aligns the P-channel MOSFET turn-on edge to the falling edge of the external clock, enabling deterministic phase relationships in multi-rail systems.
How does the TPS62300YZDT handle output short-circuit conditions?
TPS62300YZDT protects against output shorts via dual current limiting: P-MOS current limit triggers at ~780 mA, and N-MOS sinking limit activates at –600 mA. During sustained short, the device cycles into hiccup mode - shutting down for thermal recovery then attempting restart - preventing thermal runaway while limiting average fault current to ~390 mA.
TPS62300YZDT 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
TPS62300YZDT FAQ
1.How can I place an order for TPS62300YZDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62300YZDT 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 TPS62300YZDT reliable?
The price and inventory of TPS62300YZDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62300YZDT is usually 5 days.
3.What payment methods are accepted for TPS62300YZDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62300YZDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62300YZDT?
TPS62300YZDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62300YZDT 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 TPS62300YZDT?
For technical support, including TPS62300YZDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62300YZDT requirements.
6.How does Aetrix verify that TPS62300YZDT is sourced from the original manufacturer or authorized distributors?
All TPS62300YZDT 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 TPS62300YZDT meets industry standards.
7.What is the process for return or replacement of TPS62300YZDT?
All TPS62300YZDT units undergo pre-shipment inspection (PSI). If there is an issue with TPS62300YZDT, 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 TPS62300YZDT part is unused and in its original packaging.
Return procedure for TPS62300YZDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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