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Texas Instruments TPS62400DRCTG4
- Part No.:
- TPS62400DRCTG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS62400DRCTG4.pdf
- Description:
- IC REG BUCK ADJ DL 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,332
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Product details
Overview
TPS62400DRCTG4 from Texas Instruments is an adjustable dual synchronous step-down DC-DC converter optimized for battery-powered portable applications. It delivers 400 mA from Converter 1 and 600 mA from Converter 2, operates from 2.5 V to 6 V input, features 2.25-MHz fixed-frequency PWM operation, and supports dynamic voltage scaling via EasyScale™ interface - used in OMAP™ processor core and I/O rail power delivery.
For engineers reviewing the TPS62400DRCTG4 datasheet, TPS62400DRCTG4 pinout, TPS62400DRCTG4 application, or TPS62400DRCTG4 equivalent, key selection criteria include dual-rail adjustability (0.6 V to VIN), 180° out-of-phase switching for reduced input ripple, ±1% output accuracy in PWM mode, 32-μA typical quiescent current for both converters, and VSON-10 (3 mm × 3 mm) package compatibility with space-constrained mobile designs.
Technical Context
The TPS62400DRCTG4 integrates two independent synchronous buck regulators sharing a 2.25-MHz oscillator with 180° phase offset. Each converter uses voltage-mode control with input-voltage feed-forward, enabling fast transient response and stable regulation with small ceramic capacitors. Converter 1 is fully adjustable (0.6 V–VIN) via external resistor network on DEF_1; Converter 2 is adjustable via ADJ2 with 33-pF feed-forward capacitor.
Operation modes are controlled by MODE/DATA: pulled low enables automatic PFM/PWM transition at light/heavy loads; pulled high forces fixed-frequency PWM across full load range. Soft-start, undervoltage lockout (1.5 V typ), thermal shutdown (150 °C), and short-circuit protection (P/N-MOS current limiting) are fully integrated without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2.5 V to 6 V - supports single-cell Li-ion (2.7–4.2 V) and regulated 3.3 V/5 V rails without pre-regulation. |
| Output Current | 400 mA (Converter 1), 600 mA (Converter 2) - sufficient for dual-core processor core + I/O supply in handheld devices. |
| Switching Frequency | 2.25 MHz (±12.5%) - enables use of 2.2 μH inductors and compact 10–20 μF ceramic output capacitors. |
| Output Voltage Range | 0.6 V to VIN - allows precise core voltage tuning (e.g., 0.9 V, 1.1 V, 1.2 V) for dynamic voltage and frequency scaling (DVFS). |
| Quiescent Current | 32 μA (both converters, PFM mode) - extends battery life in standby/sleep states of portable electronics. |
| Accuracy (PWM) | ±1% over line/load/temperature - ensures reliable logic-level compliance for low-voltage ASICs and DSPs. |
| Shutdown Current | 1.2 μA - minimizes battery drain when system is fully powered down. |
Pinout & Package
TPS62400DRCTG4 is housed in a thermally enhanced 10-pin VSON package (3.0 mm × 3.0 mm, 0.5 mm pitch) with exposed PowerPAD™ for improved thermal dissipation (RθJA = 45.9 °C/W). The package is RoHS-compliant and moisture-sensitive level 2 (MSL-2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DEF_1 (Pin 5) | Analog voltage programming input | Connects to external resistor divider to set Converter 1 output from 0.6 V to VIN; no internal default voltage. |
| FB1 (Pin 4) | Feedback sense node | Direct connection to VOUT1 required; closes regulation loop for Converter 1 output voltage control. |
| ADJ2 (Pin 1) | Converter 2 voltage programming input | Requires external resistor divider + 33-pF feed-forward capacitor to set VOUT2; not tied internally. |
| MODE/DATA (Pin 2) | Multi-function control terminal | Configures PFM/PWM mode or serves as one-wire EasyScale™ interface for real-time output voltage updates. |
| EN1 / EN2 (Pins 7, 9) | Independent enable inputs | Active-high enables allow staggered startup, independent rail control, and zero-quiescent shutdown per converter. |
| SW1 / SW2 (Pins 6, 10) | Power switch nodes | Connect directly to external 2.2 μH inductors; integrate P/N-MOSFETs with RDS(ON) ≤ 620 mΩ / 450 mΩ. |
| VIN (Pin 3) | Main power input | Accepts 2.5–6 V; requires local 10-μF ceramic decoupling adjacent to pin for EMI suppression and stability. |
| GND (Pin 8) | Common ground reference | Must be connected to PowerPAD™ and low-impedance PCB ground plane to ensure thermal performance and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| 180° out-of-phase operation | Reduces RMS input current by ~30%, allowing smaller input capacitors and lower EMI filter component stress. |
| Integrated soft-start | Controls VOUT ramp-up time (750 μs typical) to prevent inrush current and system brownout during power-on. |
| EasyScale™ one-pin interface | Enables runtime adjustment of both outputs without additional GPIOs or I²C lines - ideal for DVFS in OMAP™ platforms. |
| 100% duty-cycle capability | Maintains regulation down to VOUT ≈ VIN − 0.3 V, supporting ultra-low dropout operation near battery end-of-life. |
| Thermal shutdown with hysteresis | Shuts down at 150 °C junction temperature and re-enables only after cooling to 130 °C - prevents thermal cycling damage. |
Applications
| Smartphone Application Processor Core Supply | Portable Media Player Audio Codec Rail |
|---|---|
Use Scenario: Powers ARM Cortex-A8 core in OMAP3-based smartphones requiring adaptive voltage scaling between 0.95 V and 1.3 V based on workload. IC Role / Device Role / Timing Role: Dual-rail regulator delivering independently controlled core (VDD_MPU) and memory I/O (VDD_IVA) voltages with synchronized 2.25-MHz switching. Use Value: Enables >20% battery life extension via dynamic voltage/frequency scaling while maintaining <1% output tolerance under 0–400 mA load transients. |
Use Scenario: Supplies clean, low-noise 1.8 V and 3.3 V rails to stereo audio DAC/ADC and SD card interface in flash-based media players. IC Role / Device Role / Timing Role: Dual-output buck converter with 180° phase shift minimizing input ripple feeding shared battery source. Use Value: Reduces input capacitor count by 50% versus discrete solutions while meeting <10 mVpp ripple requirement for 24-bit audio fidelity. |
| Handheld Medical Imaging Sensor Module | Industrial Handheld Scanner Logic Supply |
Use Scenario: Powers CMOS image sensor (1.2 V) and FPGA configuration rail (2.5 V) in battery-operated ultrasound probe with strict EMI limits. IC Role / Device Role / Timing Role: Synchronous dual buck with forced-PWM mode (MODE/DATA = high) to fix switching frequency for predictable EMI filtering. Use Value: Achieves CISPR-22 Class B radiated emissions compliance using simple π-filter due to deterministic 2.25-MHz fundamental. |
Use Scenario: Delivers 1.2 V FPGA core and 3.3 V interface voltage in ruggedized barcode scanner operating from 3.6 V Li-ion pack. IC Role / Device Role / Timing Role: Adjustable dual converter with independent EN1/EN2 enables sequenced power-up of logic and peripherals. Use Value: Eliminates need for external sequencing IC; supports cold-junction startup and graceful shutdown during battery swap. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual adjustable step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62401DRCT | Fixed outputs: 1.575 V (OUT1), 1.8 V (OUT2); DEF_1 selects between 1.1 V / 1.575 V for OUT1 only. | Not adjustable across full 0.6–VIN range; suited for systems with static voltage requirements and no DVFS. | Select TPS62401DRCT if fixed dual-rail generation suffices and board space permits same VSON-10 footprint. |
| TPS62740DSSR | Single-output, 300-mA buck with 360-nA IQ; no dual rail, no EasyScale™, no 180° phasing. | Lacks second channel and dynamic voltage control; targets ultra-low-power always-on sensors, not processors. | Choose TPS62740DSSR only for single-rail, sub-μA quiescent applications where dual conversion is unnecessary. |
Compared with TPS62401DRCT and TPS62740DSSR, the TPS62400DRCTG4 uniquely supports full-range analog adjustment of both outputs, real-time reprogramming via EasyScale™, and 180° interleaving - making it the only option for OMAP™-class DVFS systems requiring dual independent rails in minimal area.
Availability
TPS62400DRCTG4 is available at Aetrix Electronics and suitable for smartphone application processor supplies, portable medical imaging modules, industrial handheld scanners, and OMAP™-based embedded systems requiring stable component supply with long-term manufacturability.
Supply support for TPS62400DRCTG4 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 designing analog ICs, embedded processors, and connectivity solutions for industrial, automotive, and consumer markets since 1930.
The TPS6240x product line was engineered specifically for high-efficiency, space-constrained dual-rail power in battery-powered portable electronics - emphasizing integration, low IQ, and programmability for OMAP™, DSP, and application processor platforms.
FAQ
What output voltage range does the TPS62400DRCTG4 support for each channel?
The TPS62400DRCTG4 supports 0.6 V to VIN for both Converter 1 and Converter 2. Converter 1 is programmed via external resistor network on DEF_1; Converter 2 uses ADJ2 with 33-pF feed-forward capacitor. This full-range adjustability enables precise core voltage tuning for DVFS in OMAP™ and similar processors - unlike fixed-output variants such as TPS62401DRCT.
How does the MODE/DATA pin function on the TPS62400DRCTG4?
The MODE/DATA pin on the TPS62400DRCTG4 serves two roles: (1) mode selection - pulled low enables automatic PFM/PWM transition; pulled high forces fixed-frequency PWM across all loads; (2) serial interface - implements EasyScale™ one-wire protocol to dynamically update both output voltages during operation. No pull-up/pull-down is required for interface use, and acknowledge pulses are generated on the same line.
Can the TPS62400DRCTG4 operate with only one converter enabled?
Yes, the TPS62400DRCTG4 supports independent operation of each converter. EN1 (Pin 7) controls Converter 1; EN2 (Pin 9) controls Converter 2. Either can be held low to disable its respective rail while the other remains active - enabling power sequencing, partial system wake-up, and fault isolation. Quiescent current drops to ~19 μA when only one converter is enabled and idle.
What thermal performance can be expected from the TPS62400DRCTG4 in a standard 2-layer PCB layout?
In a standard 2-layer PCB with 1-in² copper pour connected to the PowerPAD™, the TPS62400DRCTG4 achieves RθJB = 20.4 °C/W. At 400 mA/600 mA full load and 25 °C ambient, junction temperature rise is ~12°C above ambient - well below the 125 °C max operating limit. Thermal shutdown activates only under sustained overload or inadequate heatsinking.
Is the TPS62400DRCTG4 pin-compatible with other devices in the TPS6240x family?
Yes, all TPS6240x devices (TPS62400, TPS62401, TPS62402, TPS62403, TPS62404) share identical VSON-10 (DRC) packaging and pinout. The TPS62400DRCTG4 is functionally compatible with TPS62401DRCT at the board level - differing only in default output behavior (adjustable vs. fixed) and internal resistor network configuration, requiring no PCB changes for drop-in replacement in adjustable-rail designs.
TPS62400DRCTG4 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:
- Adjustable
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 400mA, 600mA
- Frequency - Switching:
- 2.25MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS62400DRCTG4 FAQ
1.How can I place an order for TPS62400DRCTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62400DRCTG4 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 TPS62400DRCTG4 reliable?
The price and inventory of TPS62400DRCTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62400DRCTG4 is usually 5 days.
3.What payment methods are accepted for TPS62400DRCTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62400DRCTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62400DRCTG4?
TPS62400DRCTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62400DRCTG4 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 TPS62400DRCTG4?
For technical support, including TPS62400DRCTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62400DRCTG4 requirements.
6.How does Aetrix verify that TPS62400DRCTG4 is sourced from the original manufacturer or authorized distributors?
All TPS62400DRCTG4 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 TPS62400DRCTG4 meets industry standards.
7.What is the process for return or replacement of TPS62400DRCTG4?
All TPS62400DRCTG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62400DRCTG4, 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 TPS62400DRCTG4 part is unused and in its original packaging.
Return procedure for TPS62400DRCTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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