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Texas Instruments TPS62590DRVR
- Part No.:
- TPS62590DRVR
- Manufacturer:
- Texas Instruments
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS62590DRVR.pdf
- Description:
- IC REG BUCK ADJ 1A 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,097
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Product details
Overview
TPS62590DRVR from Texas Instruments is a synchronous step-down DC-DC converter delivering up to 1000 mA output current, operating from 2.5 V to 5.5 V input, with adjustable output voltage (0.75 V to VIN), 2.25-MHz fixed switching frequency, and power-save mode for high light-load efficiency - used in mobile phone core logic and low-power DSP supply rails.
For engineers reviewing the TPS62590DRVR datasheet, TPS62590DRVR pinout, TPS62590DRVR application, or TPS62590DRVR equivalent, key selection considerations include its 2-mm × 2-mm WSON package, 15-μA quiescent current in PFM mode, ±2.5% output voltage accuracy in PWM mode, 100% duty cycle capability for ultra-low dropout, and MODE pin-controlled transition between PWM and power-save operation.
Technical Context
The TPS62590DRVR implements a voltage-mode control architecture with input voltage feed-forward, enabling fast line/load transient response and stable operation with small ceramic capacitors. Its dual-mode operation - fixed-frequency 2.25-MHz PWM at moderate-to-heavy loads and pulse-frequency modulation (PFM) at light loads - is managed by the MODE pin and internal comparators monitoring output voltage and inductor current zero-crossing.
It integrates high-side (250 mΩ typical) and low-side (190 mΩ typical) MOSFETs, features dynamic voltage positioning (+1% nominal output in PFM mode), undervoltage lockout (1.85 V falling threshold), thermal shutdown (140°C), and soft-start (250 μs ramp-up time). The FB pin accepts an external resistor divider for output voltage programming, with 600-mV internal reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Up to 1000 mA - supports single-core ARM processors and low-power DSPs without external current boosting. |
| Input Voltage Range | 2.5 V to 5.5 V - compatible with single Li-ion (2.7–4.2 V), 3×AAA (3.6–4.5 V), or USB-powered systems. |
| Switching Frequency | 2.25 MHz fixed - enables use of compact 2.2-μH inductors and 10-μF ceramic capacitors for minimal PCB footprint. |
| Quiescent Current | 15 μA typical in PFM mode - extends battery runtime in standby/sleep states of portable devices. |
| Output Voltage Accuracy | ±2.5% in PWM mode - ensures reliable operation of 1.8-V I/O or 1.2-V core rails under varying load/temperature conditions. |
| Duty Cycle Max | 100% - maintains regulation down to VIN ≈ VOUT + IOUT × RDS(on), maximizing usable battery voltage range. |
| Thermal Shutdown | 140°C with 20°C hysteresis - protects against sustained overload or poor PCB thermal design without latch-off. |
Pinout & Package
The TPS62590DRVR is housed in a thermally enhanced 6-pin WSON package (2.00 mm × 2.00 mm × 0.8 mm) with an exposed thermal pad soldered to PCB ground for efficient heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW | Switch node | Connects internal high-side/low-side MOSFETs to external inductor; carries high di/dt - requires short, low-inductance layout. |
| VIN | Power input | Supplies input voltage (2.5–5.5 V); requires local 10-μF ceramic decoupling capacitor placed near pin. |
| GND | Ground reference | System power ground; must be connected to exposed thermal pad for thermal and electrical performance. |
| FB | Feedback input | Senses output voltage via external resistor divider; 600-mV internal reference sets VOUT = 0.6 × (1 + R1/R2). |
| EN | Enable control | Active-high logic input; pulling low disables converter and reduces current draw to <0.5 μA (shutdown mode). |
| MODE | Operating mode select | Low = automatic PFM/PWM transition; high = forced fixed-frequency PWM - critical for EMI-sensitive RF sections. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Voltage Positioning | Regulates output +1% above nominal in PFM mode to minimize undershoot during sudden load steps (e.g., CPU wake-up). |
| 100% Duty Cycle Operation | Enables dropout as low as IOUT × RDS(on) - extends runtime by utilizing full battery voltage down to ~2.7 V for 1.8-V output. |
| Integrated Power MOSFETs | 250 mΩ high-side + 190 mΩ low-side RDS(on) - eliminates external FETs and gate drivers, reducing BOM count and layout complexity. |
| Soft-Start Ramp Time | 250 μs (5% to 95% VOUT) - limits inrush current into output capacitance, preventing input rail collapse from weak sources like coin cells. |
| Short-Circuit Protection | Current-limited switching with ILIMF = 1.19–1.68 A - prevents damage during output faults while allowing safe auto-recovery. |
Applications
| Mobile Phone Core Supply | Tablet PC I/O Rail |
|---|---|
Use Scenario: Powers application processor core (e.g., ARM Cortex-A series) requiring tightly regulated 1.2 V at up to 800 mA with rapid load transients during burst processing. IC Role / Device Role / Timing Role: Primary buck regulator providing dynamically scaled core voltage; MODE pin tied to system PMIC to force PWM during active mode and enable PFM in idle. Use Value: 15-μA quiescent current in PFM mode extends standby battery life; 2.25-MHz switching avoids AM radio band interference. | Use Scenario: Supplies 3.3-V I/O interface for touch controller, camera sensor, and SD card in 7-inch tablet with Li-poly battery input. IC Role / Device Role / Timing Role: Point-of-load converter located near load; FB pin configured for fixed 3.3 V using 360-kΩ/180-kΩ divider; EN controlled by system power sequencer. Use Value: 2-mm × 2-mm WSON package saves space on dense tablet PCB; 100% duty cycle sustains 3.3-V output until battery drops to 3.45 V. |
| WLAN Baseband Power | Low-Power DSP Supply |
Use Scenario: Delivers clean 1.8-V supply to WLAN baseband IC (e.g., TI WL1837MOD) with stringent noise requirements in smartphone RF module. IC Role / Device Role / Timing Role: Noise-sensitive POL regulator; MODE pin pulled high to enforce fixed 2.25-MHz PWM for predictable EMI filtering with ferrite beads. Use Value: ±2.5% output accuracy ensures stable PLL reference; low 15-μA IQ minimizes impact on overall RF subsystem current budget. | Use Scenario: Powers voice-processing DSP in Bluetooth headset, operating intermittently at 100–500 mA with long idle periods between voice activity. IC Role / Device Role / Timing Role: Efficiency-optimized buck converter; GND-connected MODE pin enables automatic PFM entry during silence; EN synchronized with audio codec wake signal. Use Value: 15-μA PFM IQ doubles battery life vs. forced-PWM alternatives; thermal pad ensures junction temperature stays below 85°C during talk bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62290DRVR | Higher 3-MHz switching frequency; lower 12-μA IQ; same 1-A rating and WSON-6 package. | Better suited for ultra-thin devices needing smallest possible inductor (1-μH); less optimal for high-current transient loads due to reduced current limit. | Select TPS62290DRVR when board space is constrained and peak load ≤700 mA; retain TPS62590DRVR for higher robustness and wider input range stability. |
| MP2158GQZ-P | Monolithic 1-A buck with 2-MHz switching; 25-μA IQ; no MODE pin - fixed PFM/PWM auto-transition only. | Lacks MODE pin override, limiting EMI control flexibility; slightly larger 2.5-mm × 3-mm QFN package. | Choose MP2158GQZ-P for cost-sensitive designs where fixed auto-mode suffices and thermal pad layout allows larger footprint. |
Compared with TPS62290DRVR and MP2158GQZ-P, the TPS62590DRVR offers superior design flexibility via the MODE pin for deterministic EMI management, broader 2.5–5.5 V input compatibility, and proven thermal performance in 2-mm × 2-mm WSON - making it preferred for battery-powered systems demanding both efficiency and controllability.
Availability
TPS62590DRVR is available at Aetrix Electronics and suitable for mobile phones, tablet PCs, WLAN modules, and low-power DSP supply applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62590DRVR 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 headquartered in Dallas, Texas, designing and manufacturing analog and embedded processing chips for industrial, automotive, and personal electronics markets.
The TPS62590DRVR belongs to TI's high-efficiency, small-footprint DC-DC converter product line, engineered specifically for battery-powered portable equipment where size, efficiency across load range, and ease of integration are critical.
FAQ
What is the recommended inductor value for TPS62590DRVR in a typical 1.8-V output design?
The TPS62590DRVR is optimized for a 2.2-μH inductor with 10-μF output capacitance. This combination delivers balanced ripple current, PFM-mode voltage ripple, and transient response. Inductor values from 1.5 μH to 4.7 μH are supported, but 2.2 μH ensures compliance with the device's internal compensation and achieves the specified 250-μs soft-start time and ±2.5% output accuracy. Coilcraft LPS3015 and Murata LQH3NPN2R2NM0 are validated options.
How does the MODE pin affect efficiency and noise performance of TPS62590DRVR?
When MODE = GND, TPS62590DRVR enters power-save mode, automatically switching between PFM (light load) and PWM (heavy load) to maintain >85% efficiency down to 100 μA output current. When MODE = VIN, it forces fixed 2.25-MHz PWM operation, improving noise predictability for EMI filtering but reducing light-load efficiency to ~65%. This trade-off makes MODE pin configuration essential for balancing battery life versus RF coexistence in systems like smartphones.
Can TPS62590DRVR regulate output when input voltage drops close to the output voltage?
Yes. The TPS62590DRVR supports 100% duty cycle operation, allowing it to maintain regulation as VIN approaches VOUT. For example, with a 1.8-V output and 1-A load, regulation holds down to VIN ≈ 1.8 V + (1 A × 0.25 Ω) = 2.05 V - well within its 2.5–5.5 V specified input range. This feature maximizes usable battery capacity in single-cell Li-ion applications, extending operational time before system brownout.
What is the purpose of the exposed thermal pad on the TPS62590DRVR WSON package?
The exposed thermal pad on the TPS62590DRVR serves two critical functions: it provides a low-thermal-resistance path (RθJB = 37.2°C/W) from the silicon die to the PCB ground plane, preventing junction temperature exceedance under 1-A load, and it establishes a solid electrical connection to system ground, reducing noise coupling into the FB and SW nodes. TI requires this pad to be soldered to a minimum 100-mm² copper pour connected to GND for both thermal reliability and functional stability.
Does TPS62590DRVR require an external feedforward capacitor on the FB pin?
Yes. An external 22-pF to 33-pF COG/NPO ceramic capacitor (e.g., Murata GCM1555C1H220J) must be placed directly between FB and GND to optimize load transient response and ensure stability with the recommended 2.2-μH inductor and 10-μF output capacitor. Omitting C1 degrades voltage positioning accuracy and increases output overshoot during 100-mA to 1-A load steps - a requirement explicitly called out in Section 8.2.2.1 of the TPS62590DRVR datasheet.
TPS62590DRVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.75V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 1A
- Frequency - Switching:
- 2.25MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (2x2)
TPS62590DRVR FAQ
1.How can I place an order for TPS62590DRVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62590DRVR 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 TPS62590DRVR reliable?
The price and inventory of TPS62590DRVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62590DRVR is usually 5 days.
3.What payment methods are accepted for TPS62590DRVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62590DRVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62590DRVR?
TPS62590DRVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62590DRVR 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 TPS62590DRVR?
For technical support, including TPS62590DRVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62590DRVR requirements.
6.How does Aetrix verify that TPS62590DRVR is sourced from the original manufacturer or authorized distributors?
All TPS62590DRVR 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 TPS62590DRVR meets industry standards.
7.What is the process for return or replacement of TPS62590DRVR?
All TPS62590DRVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62590DRVR, 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 TPS62590DRVR part is unused and in its original packaging.
Return procedure for TPS62590DRVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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