My Inquiry
My Account
Texas Instruments TPS62420DRCR
- Part No.:
- TPS62420DRCR
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS62420DRCR.pdf
- Description:
- IC REG BCK ADJ 0.6A/1A DL 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:3,522
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS62420DRCR from Texas Instruments is a synchronous dual step-down DC–DC converter IC with two independent output rails (1.5 V @ 600 mA and 1.8 V @ 1000 mA), operating from 2.5 V to 6 V input, featuring 2.25-MHz fixed-frequency PWM, power-save mode for light loads, and EasyScale™ one-pin serial interface for dynamic voltage scaling - used in OMAP™/DSP core and I/O supply sequencing in portable media players and smartphones.
For engineers reviewing the TPS62420DRCR datasheet, TPS62420DRCR pinout, TPS62420DRCR application, or TPS62420DRCR equivalent, key selection criteria include dual-output current capability (600 mA / 1000 mA), 10-pin VSON (3 mm × 3 mm) package footprint, ±1% output voltage accuracy in PWM mode, 180° out-of-phase operation for reduced input ripple, and support for dynamic voltage adjustment via MODE/DATA pin without external I²C or SPI controllers.
Technical Context
The TPS62420DRCR integrates two independent synchronous buck converters sharing a single 2.25-MHz oscillator with 180° phase shift between SW1 and SW2 to minimize input RMS current. Each channel uses internal P-channel and N-channel MOSFETs with RDS(on) of 280 mΩ (P) and 200 mΩ (N) at 3.6 V, enabling high-efficiency regulation across 0.6 V to VIN output range.
It supports three operational modes: automatic power-save (PFM at light load, PWM at heavy load), forced PWM (via MODE/DATA = HIGH), and shutdown (ISD = 1.2 μA). Output voltage is set either by external resistor dividers on DEF_1 and ADJ2 (adjustable version), or dynamically via EasyScale™ serial protocol on MODE/DATA - with acknowledge timing tACKN = 400–520 μs and bit timing resolution down to 2 μs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 6 V - supports single-cell Li-ion (3.0–4.2 V) and standard 3.3 V/5 V rails without pre-regulation |
| Output 1 Current | 600 mA - sufficient for low-power DSP cores or ARM® application processor I/O domains |
| Output 2 Current | 1000 mA - powers baseband processors or RF transceivers requiring higher sustained current |
| Switching Frequency | 2.25 MHz (±12.5%) - enables use of small 2.2 μH inductors and 22 μF ceramic output capacitors |
| Quiescent Current | 32–48 μA (both converters idle, PFM enabled) - extends battery life in standby states |
| Output Voltage Accuracy | ±1% in PWM mode - ensures stable logic-level compliance for 1.5 V/1.8 V digital supplies |
| Thermal Shutdown | 150°C with 20°C hysteresis - protects against sustained overload or poor PCB thermal design |
Pinout & Package
TPS62420DRCR is housed in a thermally enhanced 10-pin VSON package (3.00 mm × 3.00 mm, 0.5 mm pitch) with exposed PowerPAD™ for low-thermal-resistance GND connection (RθJB = 20.4°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ADJ2 | Converter 2 feedback adjust | Analog input for external resistor divider to set VOUT2 from 0.6 V to VIN; must connect directly to VOUT2 if using EasyScale™ |
| MODE/DATA | Mode control & serial interface | Open-drain bidirectional pin: LOW = auto PFM/PWM, HIGH = forced PWM; also carries EasyScale™ commands with 500 μA sink capability |
| VIN | Main power input | Supplies both converters; accepts 2.5–6 V; requires local 10 μF ceramic decoupling |
| FB1 | Converter 1 feedback sense | Direct connection to VOUT1; internal feed-forward capacitor improves transient response |
| DEF_1 | Converter 1 default voltage select | Analog input in TPS62420: sets VOUT1 via external resistor network (e.g., 270kΩ/180kΩ → 1.5 V) |
| SW1, SW2 | Power switch nodes | Connect to respective 2.2 μH inductors; require low-ESR ceramic output caps (22 μF typical) |
| EN1, EN2 | Independent enable inputs | Active-high logic; each controls startup/shutdown of its converter with soft-start ramp (750 μs VOUT rise) |
| GND | Signal & power ground | Must be tied to PowerPAD™; forms return path for both converters and internal bias circuits |
Key Features
| Feature | Design Value |
|---|---|
| 180° out-of-phase switching | Reduces input ripple current by ~30%, allowing smaller input capacitors and lower EMI filtering cost |
| Dynamic voltage positioning | Maintains +1% VOUT offset in PFM mode to minimize undershoot during load transients (e.g., CPU wake-up) |
| 100% duty cycle operation | Enables dropout as low as VOUT + 0.3 V (e.g., 1.8 V out from 2.1 V input), critical for end-of-battery-life operation |
| Integrated short-circuit protection | Uses dual current limits (P-MOS and N-MOS) to limit peak output current to 1.19–1.61 A without external sensing |
| EasyScale™ one-pin interface | Eliminates need for dedicated I²C/SPI bus; enables real-time VOUT adjustment during system operation |
Applications
| Smartphone Application Processor Core Supply | Portable Media Player Audio Codec Supply |
|---|---|
Use Scenario: Powers ARM® Cortex-A8 core at 1.5 V while managing dynamic frequency scaling. IC Role / Device Role / Timing Role: Dual-output buck regulator delivering tightly regulated core and I/O voltages with synchronized switching to reduce noise coupling. Use Value: Enables >95% efficiency at 300 mA load and <48 μA quiescent current in sleep mode, extending playback time by 12% over discrete solutions. |
Use Scenario: Supplies 1.8 V to stereo audio DAC/ADC and 1.5 V to headphone amplifier in MP3 player. IC Role / Device Role / Timing Role: Provides low-noise, fast-transient dual rail with 180° phase shift to suppress supply-induced crosstalk between analog and digital sections. Use Value: Achieves <10 mVpp output ripple at 1 kHz load steps, meeting THD+N < -95 dB requirements without additional LDO post-regulation. |
| OMAP™ Platform Baseband Power | Digital Camera Image Sensor Interface Supply |
Use Scenario: Generates 1.5 V for OMAP™ DSP subsystem and 1.8 V for memory/bus interface in handheld devices. IC Role / Device Role / Timing Role: Synchronous dual converter with independent EN1/EN2 enables staggered power-up sequencing per TI OMAP™ boot requirements. Use Value: Soft-start ramp (750 μs) prevents inrush current exceeding 1.2 A, avoiding brownout on shared 3.3 V battery rail. |
Use Scenario: Powers CIS analog front-end (1.5 V) and digital interface (1.8 V) in compact digital camera modules. IC Role / Device Role / Timing Role: Compact 3 mm × 3 mm VSON package fits tight board space; 2.25 MHz switching avoids interference with image sensor pixel clock harmonics. Use Value: 2.25 MHz operation allows use of 1.0 mm height inductors, reducing total solution height to <1.6 mm - critical for ultra-thin camera designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62421DRCR | Fixed 1.2 V / 1.8 V outputs (DEF_1 selects 1.2 V or 1.8 V); same pinout, no external resistors needed | Suitable where output voltages are static and known at design stage; eliminates resistor placement and tolerance errors | Select TPS62421DRCR when fixed outputs simplify BOM and layout; choose TPS62420DRCR when adjustable outputs or dynamic scaling via EasyScale™ are required |
| TPS62290DRVR | Single 600 mA buck (not dual); 2.25 MHz, 2.5–6 V input, 0.6–5.5 V adjustable output; 6-pin WSON | Requires two separate ICs to replicate dual-rail functionality; lacks 180° phase shift and inter-converter coordination | Use TPS62290DRVR only if dual-rail synchronization is unnecessary and board area permits two discrete regulators |
Compared with TPS62421DRCR, the TPS62420DRCR offers full output adjustability and runtime voltage tuning but requires external resistors and careful layout for ADJ2 feed-forward. Versus TPS62290DRVR, it delivers integrated dual-rail coordination and 30% smaller footprint, though at higher complexity for non-dynamic applications.
Availability
TPS62420DRCR is available at Aetrix Electronics and suitable for smartphone power management, portable media player subsystems, and OMAP™ platform development requiring stable component supply, long-term production continuity, and automotive-grade reliability screening.
Supply support for TPS62420DRCR 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 and industrial systems.
The TPS6242x product line was designed specifically for battery-powered portable electronics requiring compact, high-efficiency dual-rail power with dynamic voltage scaling - targeting smart phones, PDAs, and multimedia devices operating from single-cell Li-ion sources.
FAQ
What is the maximum output current capability of each channel in TPS62420DRCR?
The TPS62420DRCR provides up to 600 mA on Output 1 (VOUT1) and up to 1000 mA on Output 2 (VOUT2) under recommended operating conditions (VIN = 2.5–6 V, TA ≤ 85°C, proper thermal layout). These values reflect continuous DC current capability with typical efficiency >90% at full load and are validated per TI's SLVS676D datasheet Section 7.5.
How does the MODE/DATA pin function in TPS62420DRCR?
In TPS62420DRCR, the MODE/DATA pin serves dual roles: when pulled LOW, it enables automatic power-save mode (PFM at light load, PWM at heavy load); when pulled HIGH, it forces fixed-frequency PWM operation across all loads. It also functions as an open-drain serial interface for EasyScale™ voltage programming, with acknowledge pulses lasting 400–520 μs and timing resolution down to 2 μs.
Can TPS62420DRCR operate with only one output enabled?
Yes, TPS62420DRCR supports independent operation: EN1 controls Converter 1 and EN2 controls Converter 2. Either can be held LOW to disable its output while the other remains active. Shutdown current drops to 1.2 μA when both EN1 and EN2 are LOW, and soft-start (750 μs VOUT ramp) applies individually per enabled converter.
What package type and thermal characteristics does TPS62420DRCR use?
TPS62420DRCR uses a 10-pin VSON package (3.00 mm × 3.00 mm, 0.5 mm pitch) with exposed PowerPAD™. Its thermal metrics include RθJA = 45.9°C/W and RθJB = 20.4°C/W, enabling 2050 mW power dissipation at TA ≤ 25°C with 21 mW/°C derating above that temperature - verified per JEDEC JESD51 standards in the official datasheet.
Does TPS62420DRCR support 100% duty cycle operation, and why does it matter?
Yes, TPS62420DRCR supports 100% duty cycle operation, allowing VOUT to reach as close as VOUT + 0.3 V to VIN (e.g., 1.8 V output from 2.1 V input). This is essential for maintaining regulation near end-of-battery-life in single-cell Li-ion systems (2.8–3.0 V), preventing premature system shutdown and maximizing usable battery capacity.
TPS62420DRCR 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:
- 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:
- 600mA, 1A
- 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)
TPS62420DRCR FAQ
1.How can I place an order for TPS62420DRCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62420DRCR 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 TPS62420DRCR reliable?
The price and inventory of TPS62420DRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62420DRCR is usually 5 days.
3.What payment methods are accepted for TPS62420DRCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62420DRCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62420DRCR?
TPS62420DRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62420DRCR 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 TPS62420DRCR?
For technical support, including TPS62420DRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62420DRCR requirements.
6.How does Aetrix verify that TPS62420DRCR is sourced from the original manufacturer or authorized distributors?
All TPS62420DRCR 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 TPS62420DRCR meets industry standards.
7.What is the process for return or replacement of TPS62420DRCR?
All TPS62420DRCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62420DRCR, 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 TPS62420DRCR part is unused and in its original packaging.
Return procedure for TPS62420DRCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS62420DRCR 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…
