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Texas Instruments TPS62401DRCR
- Part No.:
- TPS62401DRCR
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS62401DRCR.pdf
- Description:
- IC REG BUCK PROG/1.8V DL 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,899
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Product details
Overview
TPS62401DRCR from Texas Instruments is a dual synchronous step-down DC-DC converter IC optimized for battery-powered portable applications, delivering 400 mA on Channel 1 (VOUT1 = 1.575 V) and 600 mA on Channel 2 (VOUT2 = 1.8 V), operating from 2.5 V to 6 V input with 2.25-MHz fixed switching frequency and ±1% output voltage accuracy in PWM mode.
For engineers reviewing the TPS62401DRCR datasheet, TPS62401DRCR pinout, TPS62401DRCR application, or TPS62401DRCR equivalent, key selection considerations include dual-rail dynamic voltage scaling support via DEF_1 pin, EasyScale™ one-wire interface capability, 180° out-of-phase operation for reduced input ripple, and 32-μA typical quiescent current across both converters in power-save mode.
Technical Context
The TPS62401DRCR integrates two independent synchronous buck regulators sharing a single 2.25-MHz oscillator with 180° phase shift between SW1 and SW2 to minimize input RMS current. Each channel employs voltage-mode control with input-voltage feed-forward for fast line/load transient response and internal compensation.
Channel 1 uses a digital DEF_1 pin to select between fixed 1.575 V (DEF_1 low) or 1.1 V (DEF_1 high); Channel 2 is fixed at 1.8 V with ADJ2 tied directly to VOUT2. MODE/DATA serves dual function: forcing PWM mode (high) or enabling automatic PFM/PWM transition (low), and acting as open-drain serial interface for runtime voltage reprogramming.
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 external LDO pre-regulation. |
| VOUT1 / IOUT1 | 1.575 V / 400 mA - factory-default rail for core logic or DSP I/O in OMAP™ platforms; fixed by internal resistor network when DEF_1 = low. |
| VOUT2 / IOUT2 | 1.8 V / 600 mA - fixed output for memory interfaces or analog subsystems; requires ADJ2 shorted to VOUT2 per datasheet. |
| Switching Frequency | 2.25 MHz (±12.5%) - enables use of compact 2.2 μH inductors and ceramic capacitors; reduces solution footprint vs lower-frequency alternatives. |
| Quiescent Current | 32 μA (both channels active, no load, PFM mode) - extends battery life in standby states for smartphones and PDAs. |
| Output Accuracy | ±1% in forced PWM mode - ensures stable voltage margins for sensitive processors under full-load conditions. |
| Shutdown Current | 1.2 μA - minimizes battery drain during system sleep; EN1/EN2 independently disable each converter. |
Pinout & Package
TPS62401DRCR 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).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DEF_1 (Pin 5) | Digital select input for VOUT1 | Low = 1.575 V default; high = 1.1 V default; enables dynamic voltage scaling without external resistors. |
| FB1 (Pin 4) | Feedback input for Channel 1 | Internally connected to precision resistor divider; must be tied directly to VOUT1 in fixed-output versions. |
| ADJ2 (Pin 1) | Adjust input for Channel 2 | Must be shorted to VOUT2 (1.8 V) - not used for voltage setting in TPS62401; required for EasyScale™ compatibility. |
| MODE/DATA (Pin 2) | Multi-function control pin | Pull low for auto PFM/PWM; pull high for forced PWM; serves as bidirectional serial interface for runtime VOUT reprogramming. |
| SW1 (Pin 6), SW2 (Pin 10) | Power switch outputs | Drive external 2.2 μH inductors; 180° phase relationship cuts input capacitor RMS current by ~30%. |
| EN1 (Pin 7), EN2 (Pin 9) | Independent enable inputs | Active-high logic; allows staggered startup, rail sequencing, and per-rail power gating in multi-domain systems. |
| VIN (Pin 3), GND (Pin 8), PowerPAD™ | Supply input, ground, thermal pad | VIN accepts 2.5–6 V; GND and PowerPAD™ must be soldered to large PCB copper area for thermal reliability. |
Key Features
| Feature | Design Value |
|---|---|
| 180° out-of-phase operation | Reduces input capacitor RMS current and EMI, enabling smaller 10-μF ceramic input caps instead of bulk electrolytics. |
| EasyScale™ one-pin serial interface | Enables real-time adjustment of both VOUT1 and VOUT2 without additional GPIOs or I²C lines - critical for DVFS in mobile SoCs. |
| Pin-selectable VOUT1 (1.575 V / 1.1 V) | Eliminates need for external resistor networks or configuration EEPROM; simplifies BOM and layout for dual-voltage processor cores. |
| 100% duty cycle capability | Supports ultra-low dropout operation down to VOUT + 0.1 V, extending usable battery range in Li-ion discharge curves. |
| Integrated short-circuit protection | Uses dual MOSFET current limits (P-MOS: 0.68–0.92 A; N-MOS: 0.85–1.15 A) to sustain fault conditions without latch-up or thermal shutdown. |
Applications
| Smartphone Application Processor Core | OMAP™ Platform Memory Interface |
|---|---|
|
Use Scenario: Powering ARM Cortex-A8/A9 CPU cores requiring dynamic voltage scaling between 1.1 V and 1.575 V based on workload. IC Role / Device Role: Dual-rail PMIC providing independent, sequenced, and dynamically adjustable supply rails for processor core (VOUT1) and I/O (VOUT2). Use Value: DEF_1 pin and EasyScale™ enable seamless voltage transitions without firmware intervention; 2.25-MHz switching avoids audible noise in handheld form factors. |
Use Scenario: Supplying 1.8 V DDR2/SDRAM interface on TI OMAP3/4 reference designs with tight ripple and transient requirements. IC Role / Device Role: Dedicated high-current (600 mA) buck regulator for memory subsystem, decoupled from core rail for noise isolation. Use Value: Fixed 1.8 V output with ±1% accuracy ensures signal integrity; 180° phase shift minimizes shared input rail noise coupling into memory timing paths. |
| Portable Media Player Audio Codec | Digital Camera Image Signal Processor |
|
Use Scenario: Delivering clean, low-noise 1.575 V supply to high-resolution audio DACs and ADCs in battery-operated players. IC Role / Device Role: Low-quiescent-current (32 μA) dual converter supplying analog front-end (VOUT1) and digital logic (VOUT2) rails. Use Value: Forced PWM mode (via MODE/DATA high) eliminates PFM frequency modulation noise that would alias into audio band; 2.25-MHz fundamental is easily filtered. |
Use Scenario: Powering 1.8 V ISP and 1.575 V sensor interface in compact digital cameras with burst-mode imaging demands. IC Role / Device Role: Fast-transient dual buck converter supporting rapid on/off cycling of image pipeline blocks to conserve battery. Use Value: 170-μs startup time and 750-μs VOUT ramp enable quick wake-from-sleep; internal soft-start prevents lens motor reset during power-on. |
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 |
|---|---|---|---|
| TPS62400DRCR | Adjustable VOUT1 (0.6–VIN) and VOUT2 (0.6–VIN) via external resistors; no fixed defaults; same pinout and package. | Requires external feedback resistors and design validation for each output; lacks factory-trimmed 1.575 V/1.8 V defaults. | Select when flexible output voltages beyond 1.575 V/1.8 V are needed; avoid if BOM simplification and guaranteed accuracy are priorities. |
| TPS62403DRCR | Fixed VOUT1 = 1.575 V / VOUT2 = 2.8 V; identical DEF_1 behavior and EasyScale™ support; same quiescent current and efficiency. | Targets higher-voltage I/O domains (e.g., SDIO, USB PHY) instead of 1.8 V memory interfaces. | Select when second rail must be 2.8 V (e.g., camera sensor bias); not suitable as drop-in replacement for 1.8 V memory loads. |
Compared with TPS62400DRCR, TPS62401DRCR eliminates external resistor networks for its default rails, reducing component count and calibration risk; versus TPS62403DRCR, it provides the exact 1.8 V required for LPDDR/DDR2 memory while maintaining identical control features and thermal performance.
Availability
TPS62401DRCR is available at Aetrix Electronics and suitable for smartphone power management, OMAP™ platform development, and portable media player design requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS62401DRCR 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 TPS6240x product line was designed specifically for battery-powered portable devices requiring dual, independently controllable, high-frequency step-down rails with minimal footprint and dynamic voltage scaling capability.
FAQ
What is the default output voltage configuration of the TPS62401DRCR?
The TPS62401DRCR has factory-configured fixed outputs: Channel 1 delivers 1.575 V (when DEF_1 is pulled low) or 1.1 V (when DEF_1 is pulled high); Channel 2 is fixed at 1.8 V. Unlike the adjustable TPS62400DRCR, no external resistors are needed - ADJ2 must be shorted to VOUT2 and FB1 tied directly to VOUT1 per datasheet requirements.
Can the TPS62401DRCR operate with only one output enabled?
Yes, the TPS62401DRCR supports independent operation: EN1 controls Channel 1 (1.575 V/1.1 V) and EN2 controls Channel 2 (1.8 V). Either converter can be disabled individually, reducing quiescent current to ~19 μA for the active channel alone. Both EN pins must be actively driven - floating pins are not permitted per datasheet.
How does the MODE/DATA pin affect efficiency and noise performance of the TPS62401DRCR?
When MODE/DATA is low, the TPS62401DRCR automatically enters power-save mode (PFM) at light loads, achieving up to 95% peak efficiency and 32-μA quiescent current. When pulled high, it forces fixed-frequency PWM operation - sacrificing light-load efficiency for predictable 2.25-MHz switching noise that is easier to filter in noise-sensitive audio or RF sections.
What thermal considerations apply to the TPS62401DRCR in a 3 mm × 3 mm VSON package?
The TPS62401DRCR's VSON package relies on the exposed PowerPAD™ for heat dissipation. To maintain junction temperature below 125°C, the PowerPAD™ must be soldered to ≥100 mm² of inner-layer copper pour with ≥4 thermal vias (0.3-mm diameter) to internal ground planes. With proper layout, RθJA is 45.9°C/W, enabling 600-mA continuous operation at 85°C ambient.
Is the TPS62401DRCR compatible with the EasyScale™ interface for runtime voltage changes?
Yes, the TPS62401DRCR fully supports the EasyScale™ one-wire serial interface via the MODE/DATA pin. It allows real-time reprogramming of both VOUT1 and VOUT2 output voltages - including overriding DEF_1-selected defaults - without requiring additional communication buses, making it ideal for dynamic voltage/frequency scaling in mobile SoCs.
TPS62401DRCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Programmable (Fixed)
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.1V, 1.575V (1.8V)
- Voltage - Output (Max):
- -
- 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)
TPS62401DRCR FAQ
1.How can I place an order for TPS62401DRCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62401DRCR 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 TPS62401DRCR reliable?
The price and inventory of TPS62401DRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62401DRCR is usually 5 days.
3.What payment methods are accepted for TPS62401DRCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62401DRCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62401DRCR?
TPS62401DRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62401DRCR 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 TPS62401DRCR?
For technical support, including TPS62401DRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62401DRCR requirements.
6.How does Aetrix verify that TPS62401DRCR is sourced from the original manufacturer or authorized distributors?
All TPS62401DRCR 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 TPS62401DRCR meets industry standards.
7.What is the process for return or replacement of TPS62401DRCR?
All TPS62401DRCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62401DRCR, 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 TPS62401DRCR part is unused and in its original packaging.
Return procedure for TPS62401DRCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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