My Inquiry
My Account
Texas Instruments TPS62301DRCRG4
- Part No.:
- TPS62301DRCRG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS62301DRCRG4.pdf
- Description:
- IC REG BUCK 1.5V 500MA 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,162
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS62301DRCRG4 from Texas Instruments is a 500-mA, 3-MHz synchronous step-down DC-DC converter in a 10-pin QFN (3 × 3 mm) package, delivering fixed 1.5 V output from 2.7–6 V input. It features 93% peak efficiency, 86 µA quiescent current in power-save mode, and 35 ns minimum on-time for ultra-low dropout operation. Designed for space-constrained portable electronics, it powers core logic in smartphones and USB-based DSL modems.
For engineers reviewing the TPS62301DRCRG4 datasheet, TPS62301DRCRG4 pinout, TPS62301DRCRG4 application, or TPS62301DRCRG4 equivalent, key selection criteria include its fixed 1.5 V output, QFN-10 thermal performance (RθJA = 49°C/W), PFM/PWM auto-mode transition, and compatibility with 1 µH inductors and 4.7 µF ceramic output capacitors.
Technical Context
The TPS62301DRCRG4 employs voltage-mode control with input-voltage feed-forward for fast transient response, integrating dual MOSFETs (P-channel rDS(on) = 420–750 mΩ, N-channel = 330–750 mΩ) and independent current limiting (670–890 mA P-MOS, 550–890 mA N-MOS). Its 3-MHz oscillator supports on-the-fly synchronization via MODE/SYNC pin to external clocks in 2.65–3.35 MHz range.
It operates in PWM mode under medium/heavy loads and automatically transitions to pulse-frequency modulation (PFM) at light loads to maintain >85% efficiency down to 1 mA. The device includes undervoltage lockout (2.4 V), thermal shutdown (150°C), and integrated soft-start-enabling stable startup into full-capacitance loads without external circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±2% over –40°C to 85°C; enables direct powering of 1.5 V I/O or core rails without feedback resistors. |
| Max Output Current | 500 mA continuous; supports single-core processors or RF front-end ICs in portable devices. |
| Switching Frequency | 3 MHz (2.65–3.35 MHz typical); allows use of sub-1 mm height 1 µH inductors and reduces EMI filtering burden. |
| Quiescent Current | 86 µA in PFM mode; extends battery life in standby states of handheld instruments and wearables. |
| Input Voltage Range | 2.7 V to 6 V; compatible with single-cell Li-ion (2.7–4.2 V), 3-cell NiMH (3.6 V nominal), or USB-powered systems. |
| Efficiency Peak | Up to 93% at 3.6 VIN/1.5 VOUT; minimizes thermal dissipation in sealed enclosures like medical sensors. |
| Min On-Time | 35 ns; supports high duty-cycle operation down to 0.5 VOUT at 6 VIN, enabling low-VOUT applications. |
Pinout & Package
TPS62301DRCRG4 is housed in a thermally enhanced 10-pin QFN package (3 mm × 3 mm, 0.5 mm pitch) with exposed PowerPAD™ connected to PGND for optimal heat dissipation (RθJA = 49°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Supplies power stage; requires local 4.7 µF ceramic bypass capacitor to minimize input ripple and EMI. |
| AVIN | Analog supply input | Dedicated analog rail for internal reference and control circuitry; must be tied directly to VIN with short trace. |
| EN | Enable control | Active-high logic input; pulling to GND disables converter and reduces shutdown current to <1 µA. |
| MODE/SYNC | Mode selection & sync | GND = auto PFM/PWM; VIN = forced PWM; external 3-MHz clock synchronizes switching edge to falling edge. |
| VOUT | Output sense | Feedback node for fixed-output version; connects directly to output capacitor for accurate regulation. |
| AGND | Analog ground | Reference for internal comparators; must be connected to PGND via low-inductance path under PowerPAD™. |
| PGND | Power ground | Return path for high-current switch node; ties internally to PowerPAD™ for thermal conduction. |
| SW | Switch node | Drain connection of internal P/N-MOSFETs; routes to external inductor and requires tight layout to reduce ringing. |
| FB / ADJ | Feedback / adjust | Not connected on TPS62301DRCRG4 (fixed 1.5 V); leaving unconnected prevents regulation errors. |
Key Features
| Feature | Design Value |
|---|---|
| 3-MHz fixed-frequency operation | Enables compact filter design with 1 µH inductors and 4.7 µF X5R/X7R ceramics, reducing solution footprint by >40% vs. 500-kHz converters. |
| Auto PFM/PWM mode transition | Maintains >85% efficiency from 1 mA to 500 mA load, eliminating need for manual mode control in dynamic-power systems. |
| Integrated active power-down sequencing | Discharges output via internal 30–50 Ω discharge resistor during shutdown, preventing backfeed into powered rails. |
| 100% duty cycle capability | Supports ultra-low dropout operation (e.g., 1.5 VOUT from 1.8 VIN), critical for battery brownout recovery in portable devices. |
| Thermal shutdown with hysteresis | Shuts down at 150°C and restarts at 130°C, protecting PCB and adjacent components during sustained overload or poor airflow. |
Applications
| Smartphone Baseband Power | USB DSL Modem Core Supply |
|---|---|
Use Scenario: Powers ARM-based baseband processor core requiring stable 1.5 V at up to 400 mA during data transmission bursts. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering regulated core voltage with fast load transient response (<250 µs start-up, <20 mV undershoot at 400 mA step). Use Value: 93% peak efficiency extends talk time; 35 ns min on-time ensures regulation during Li-ion battery sag to 2.8 V. | Use Scenario: Supplies 1.5 V to ADSL2+ PHY and microcontroller in compact USB-powered DSL modems. IC Role / Device Role / Timing Role: Fixed-output DC-DC converter replacing linear regulators to eliminate thermal throttling in plastic enclosures. Use Value: QFN-10 package (3 × 3 mm) fits tight board space; 86 µA quiescent current meets Energy Star standby requirements. |
| Bluetooth Audio Module Rail | Digital Camera Image Sensor Bias |
Use Scenario: Provides clean 1.5 V bias to Bluetooth 5.0 audio SoC in wireless earbuds with aggressive size constraints. IC Role / Device Role / Timing Role: High-frequency buck converter operating in forced PWM mode (MODE/SYNC = VIN) to suppress switching noise near RF receivers. Use Value: 3-MHz fixed frequency enables simple LC filtering; <1 µA shutdown current preserves battery during multi-week storage. | Use Scenario: Generates 1.5 V analog supply for CMOS image sensor pixel array in compact digital cameras. IC Role / Device Role / Timing Role: Low-noise, high-PSRR DC-DC source with minimal output ripple (<25 mVP-P in PFM mode) to prevent image banding. Use Value: Integrated soft-start prevents sensor reset glitches; 0.5% DC accuracy ensures consistent ADC reference scaling. |
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 |
|---|---|---|---|
| TPS62302DRC | Fixed 1.6 V output; identical QFN-10 package, pinout, and electrical specs except VOUT. | Suitable where system requires 1.6 V core voltage (e.g., certain TI OMAP variants) instead of 1.5 V. | Select when exact 1.6 V regulation is required; no layout change needed but verify downstream voltage tolerance margins. |
| TPS62321DRC | Fixed 1.5 V output with enhanced UVLO (2.4 V), same package, but higher quiescent current (105 µA typ) and lower max efficiency (91%). | Better suited for cost-sensitive industrial controls where 2% efficiency loss is acceptable for extended qualification. | Choose for legacy designs already qualified with TPS62321; not recommended for battery-critical applications due to higher IQ. |
Compared with TPS62301DRCRG4, TPS62302DRC offers identical performance at 1.6 V for margin-sensitive processors, while TPS62321DRC trades 2% efficiency and +19 µA IQ for broader industrial temperature validation-making TPS62301DRCRG4 optimal for portable, battery-limited designs demanding peak efficiency and lowest quiescent draw.
Availability
TPS62301DRCRG4 is available at Aetrix Electronics and suitable for smartphone baseband power, USB DSL modem core supply, and Bluetooth audio module rail applications requiring stable component supply across production lifecycles.
Supply support for TPS62301DRCRG4 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.
The TPS623xx family was engineered for ultra-compact, high-frequency power delivery in battery-powered portable electronics-prioritizing minimal solution size, best-in-class light-load efficiency, and seamless integration with modern low-voltage processors.
FAQ
What is the output voltage tolerance of the TPS62301DRCRG4 over temperature and load?
The TPS62301DRCRG4 delivers fixed 1.5 V output with ±2% DC accuracy across –40°C to 85°C ambient temperature and 0–500 mA load range. This specification includes line regulation (±0.2%/V) and load regulation (–0.002%/mA), ensuring stable core voltage for sensitive digital logic without external trimming.
Does the TPS62301DRCRG4 require external feedback resistors?
No, the TPS62301DRCRG4 is a fixed-output variant with internal feedback network set to 1.5 V. The FB and ADJ pins are not connected internally and must remain unpopulated or floating-connecting external resistors will disrupt regulation and may damage the device.
How does the MODE/SYNC pin affect efficiency and noise performance in the TPS62301DRCRG4?
When MODE/SYNC is grounded, the TPS62301DRCRG4 operates in auto PFM/PWM mode, achieving >85% efficiency from 1 mA to 500 mA. Pulling MODE/SYNC high forces fixed-frequency PWM, increasing light-load IQ to ~3.6 mA but enabling predictable EMI filtering-ideal for noise-sensitive RF sections.
What thermal derating applies to the TPS62301DRCRG4 in a standard 2-layer PCB layout?
In a standard 2-layer JEDEC-compliant board, the TPS62301DRCRG4 has RθJA = 49°C/W. At 25°C ambient, maximum continuous power dissipation is 2050 mW; above 25°C, it derates linearly at 21 mW/°C. For 500 mA at 1.5 V output and 3.6 V input, power loss is ~1.05 W, allowing safe operation up to ~75°C ambient with adequate copper area.
Can the TPS62301DRCRG4 be synchronized to an external clock, and what are the timing requirements?
Yes, the TPS62301DRCRG4 supports external synchronization via the MODE/SYNC pin across 2.65–3.35 MHz. The external clock must have 20–80% duty cycle and synchronize the P-channel turn-on to its falling edge. No additional glue logic is required-direct connection suffices for master-slave multi-rail coordination.
TPS62301DRCRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 1.5V
- 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:
- 10-VSON (3x3)
TPS62301DRCRG4 FAQ
1.How can I place an order for TPS62301DRCRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62301DRCRG4 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 TPS62301DRCRG4 reliable?
The price and inventory of TPS62301DRCRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62301DRCRG4 is usually 5 days.
3.What payment methods are accepted for TPS62301DRCRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62301DRCRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62301DRCRG4?
TPS62301DRCRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62301DRCRG4 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 TPS62301DRCRG4?
For technical support, including TPS62301DRCRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62301DRCRG4 requirements.
6.How does Aetrix verify that TPS62301DRCRG4 is sourced from the original manufacturer or authorized distributors?
All TPS62301DRCRG4 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 TPS62301DRCRG4 meets industry standards.
7.What is the process for return or replacement of TPS62301DRCRG4?
All TPS62301DRCRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62301DRCRG4, 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 TPS62301DRCRG4 part is unused and in its original packaging.
Return procedure for TPS62301DRCRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS62301DRCRG4 Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
