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Texas Instruments TPS62400DRCRG4
- Part No.:
- TPS62400DRCRG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS62400DRCRG4.pdf
- Description:
- IC REG BUCK ADJ DL 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,367
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Product details
Overview
TPS62400DRCRG4 from Texas Instruments is an adjustable dual synchronous step-down DC-DC converter optimized for portable battery-powered systems. 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 with power-save mode, and supports dynamic voltage scaling via EasyScale™ interface - used in OMAP™ processor core and I/O rail supply.
For engineers reviewing the TPS62400DRCRG4 datasheet, TPS62400DRCRG4 pinout, TPS62400DRCRG4 application, or TPS62400DRCRG4 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 handheld designs.
Technical Context
The TPS62400DRCRG4 integrates two independent synchronous buck regulators sharing a 2.25-MHz oscillator with 180° phase shift, enabling lower input RMS current and smaller input capacitance. Each converter employs voltage-mode control with input-voltage feed-forward and internal compensation, supporting fast transient response without external loop components.
Converter 1 uses DEF_1 as analog input for resistor-based output setting (0.6 V to VIN); Converter 2 uses ADJ2 for external resistor divider configuration. Both support real-time reprogramming via the MODE/DATA pin's open-drain EasyScale™ serial interface, while MODE/DATA double-functions as PWM/PSM mode selector - low enables automatic PFM-to-PWM transition, high forces fixed-frequency PWM.
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 (VOUT1), 600 mA (VOUT2) - sufficient for dual-core processor core + I/O voltage domains. |
| Switching Frequency | 2.25 MHz (±12.5%) - enables use of 2.2 μH inductors and 10–20 μF ceramic output capacitors. |
| Output Accuracy | ±1% in PWM mode - ensures stable core voltage under load transients for ARM-based SoCs. |
| Quiescent Current | 32 μA (both converters active, no load, PFM mode) - extends battery life in standby states. |
| Shutdown Current | 1.2 μA - minimizes battery drain when system is fully powered down. |
| Thermal Resistance | RθJA = 45.9 °C/W - allows >400 mW power dissipation at 85°C ambient with standard PCB copper. |
Pinout & Package
TPS62400DRCRG4 is housed in a thermally enhanced 10-pin VSON package (3.00 mm × 3.00 mm, 0.5 mm pitch) with exposed PowerPAD™ for improved thermal performance and EMI reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DEF_1 (Pin 5) | Analog voltage programming input for Converter 1 | Connects to external resistor divider to set VOUT1 from 0.6 V to VIN; not used as digital select in this adjustable variant. |
| FB1 (Pin 4) | Feedback sense node for Converter 1 | Direct connection to VOUT1 provides regulation reference; internal 600-mV reference enables precise output setting. |
| ADJ2 (Pin 1) | Adjustment input for Converter 2 | Requires external resistor divider to ground and VOUT2 to program VOUT2 across full 0.6–VIN range. |
| MODE/DATA (Pin 2) | Multi-function bidirectional interface | Configures PFM/PWM mode and serves as open-drain serial data line for real-time output voltage updates. |
| EN1 / EN2 (Pins 7, 9) | Independent enable inputs | Allow staggered startup and independent shutdown of each converter - critical for power sequencing in multi-rail systems. |
| SW1 / SW2 (Pins 6, 10) | High-side switch node outputs | Drive external 2.2 μH inductors; integrated 280 mΩ P-MOS and 200 mΩ N-MOS switches minimize conduction loss. |
| VIN (Pin 3) | Main power input | Accepts 2.5–6 V with undervoltage lockout (1.5–2.35 V threshold) to prevent brownout operation and battery over-discharge. |
| GND (Pin 8) + PowerPAD™ | Common ground reference | PowerPAD™ must be soldered to large PCB ground plane for thermal and electrical integrity - reduces thermal resistance by >20 °C/W. |
Key Features
| Feature | Design Value |
|---|---|
| 180° out-of-phase operation | Reduces input capacitor RMS current by ~30%, allowing smaller 10-μF X5R ceramics instead of 22-μF. |
| Integrated EasyScale™ interface | Enables dynamic VOUT adjustment during operation using only one GPIO - eliminates need for external DAC or PMIC register access. |
| Internal soft-start (750 μs ramp) | Prevents inrush current spikes during power-up - avoids triggering upstream current-limit protection in battery or LDO supplies. |
| 100% duty-cycle capability | Maintains regulation down to VOUT = VIN − 0.3 V - supports low-dropout operation during battery discharge near end-of-life. |
| Short-circuit protected outputs | Auto-recovery current limiting (0.68–0.92 A for VOUT1, 0.85–1.15 A for VOUT2) prevents latch-up during accidental shorts. |
Applications
| Smartphone Application Processor Supply | Portable Media Player Dual-Rail Power |
|---|---|
|
Use Scenario: Powers ARM Cortex-A8 core (VDD_MPU) and memory I/O (VDD_IVA) rails in TI OMAP3 platforms. IC Role / Device Role / Timing Role: Dual-channel synchronous buck regulator delivering 1.2 V @ 400 mA (core) and 1.8 V @ 600 mA (I/O) with 180° phase shift. Use Value: Enables simultaneous high-efficiency core and peripheral operation while minimizing input ripple and PCB area. |
Use Scenario: Supplies DSP core and audio codec in portable media players requiring independent voltage scaling. IC Role / Device Role / Timing Role: Adjustable dual-output DC-DC converter supporting dynamic voltage scaling via EasyScale™ interface. Use Value: Reduces system power by lowering core voltage during low-workload playback without changing hardware layout. |
| Digital Camera Image Sensor Bias | Handheld Industrial Scanner Logic Rail |
|
Use Scenario: Generates clean, low-noise 2.8 V and 1.8 V rails for CMOS image sensor analog front-end and digital interface. IC Role / Device Role / Timing Role: Dual synchronous buck with forced PWM mode (MODE/DATA = high) to suppress switching noise in analog signal chain. Use Value: Achieves <15 mVPP output ripple at 2.25 MHz, eliminating need for post-regulator LDOs in sensor bias path. |
Use Scenario: Powers FPGA configuration logic (1.2 V) and communication interface (3.3 V) in ruggedized barcode scanners. IC Role / Device Role / Timing Role: Dual adjustable converter with independent EN1/EN2 enables sequenced power-up of FPGA banks and PHY. Use Value: Ensures reliable configuration sequence and prevents latch-up during cold-start in industrial temperature range (–40°C to 85°C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62401DRCRG4 | Fixed outputs: 1.575 V / 1.8 V; DEF_1 pin functions as digital select (not analog adjust) | Eliminates external resistors but loses programmability - suitable for cost-sensitive fixed-rail designs | Select when output voltages are known and unchanging; avoids resistor tolerance errors and layout complexity. |
| TPS62740DSSR | Single-output, 300-mA, ultra-low IQ (360 nA) with integrated LDO; no EasyScale™ or dual-rail capability | Targets ultra-low-power always-on sensors - lacks second channel and dynamic scaling | Choose only for single-rail, sub-μA standby applications; not a functional substitute for dual-rail operation. |
Compared with TPS62401DRCRG4, the TPS62400DRCRG4 offers full output adjustability at the cost of added external components; compared with TPS62740DSSR, it provides true dual-rail flexibility and higher current, making it the only viable option for OMAP™-class processor power delivery where independent, scalable rails are mandatory.
Availability
TPS62400DRCRG4 is available at Aetrix Electronics and suitable for smartphone processor power, portable media player dual-rail supply, and digital camera image sensor bias requiring stable component supply across production lifecycles.
Supply support for TPS62400DRCRG4 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 company specializing in analog and embedded processing technologies, with leadership in power management ICs for portable and industrial applications.
The TPS6240x product line was designed specifically for battery-powered portable electronics requiring compact, high-efficiency dual-rail DC-DC conversion with dynamic voltage scaling - targeting OMAP™, low-power DSP, and mobile multimedia platforms.
FAQ
What output voltage ranges does the TPS62400DRCRG4 support?
The TPS62400DRCRG4 supports fully adjustable outputs: Converter 1 (VOUT1) from 0.6 V to VIN via DEF_1 resistor network, and Converter 2 (VOUT2) from 0.6 V to VIN via ADJ2 resistor divider. This enables custom rail generation for diverse SoC requirements - for example, 1.1 V core and 2.8 V I/O - without changing the TPS62400DRCRG4 silicon.
How does the EasyScale™ interface work on the TPS62400DRCRG4?
The MODE/DATA pin on the TPS62400DRCRG4 serves as a bidirectional, open-drain serial interface. A host microcontroller sends command sequences (start bit, address, data, acknowledge) to dynamically reprogram both output voltages during operation. The TPS62400DRCRG4 responds with a low-pulse acknowledgment, enabling real-time voltage scaling without interrupting system function.
Can the TPS62400DRCRG4 operate with only one converter enabled?
Yes - the TPS62400DRCRG4 supports independent operation: EN1 controls Converter 1 and EN2 controls Converter 2. Either can be disabled while the other remains active. When only one converter operates, quiescent current drops to 19–29 μA (typical), and the enabled converter maintains full regulation, soft-start, and EasyScale™ functionality.
What thermal considerations apply to the TPS62400DRCRG4 in a 3-mm × 3-mm VSON package?
The TPS62400DRCRG4's VSON-10 package has RθJA = 45.9 °C/W. To maintain junction temperature below 125°C at 85°C ambient, total power dissipation must stay under ~430 mW. This requires proper PowerPAD™ soldering to ≥200 mm² internal/external ground copper and use of 2.2 μH shielded inductors to limit switching losses - verified in TPS62400DRCRG4 reference layouts.
Does the TPS62400DRCRG4 support forced PWM mode, and why is it useful?
Yes - pulling the MODE/DATA pin high forces both converters into fixed-frequency PWM mode across all loads. This eliminates frequency variation in power-save mode, simplifying EMI filtering and improving predictability in noise-sensitive analog circuits like camera sensor bias rails - a key advantage confirmed in TPS62400DRCRG4 test data.
TPS62400DRCRG4 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)
TPS62400DRCRG4 FAQ
1.How can I place an order for TPS62400DRCRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62400DRCRG4 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 TPS62400DRCRG4 reliable?
The price and inventory of TPS62400DRCRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62400DRCRG4 is usually 5 days.
3.What payment methods are accepted for TPS62400DRCRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62400DRCRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62400DRCRG4?
TPS62400DRCRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62400DRCRG4 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 TPS62400DRCRG4?
For technical support, including TPS62400DRCRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62400DRCRG4 requirements.
6.How does Aetrix verify that TPS62400DRCRG4 is sourced from the original manufacturer or authorized distributors?
All TPS62400DRCRG4 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 TPS62400DRCRG4 meets industry standards.
7.What is the process for return or replacement of TPS62400DRCRG4?
All TPS62400DRCRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62400DRCRG4, 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 TPS62400DRCRG4 part is unused and in its original packaging.
Return procedure for TPS62400DRCRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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