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Texas Instruments TPS60242DGKR
- Part No.:
- TPS60242DGKR
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS60242DGKR.pdf
- Description:
- IC REG CHG PUMP 2.7V 25MA 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,649
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Product details
Overview
TPS60242DGKR from Texas Instruments is a 2.7-V fixed-output, zero-ripple switched-capacitor buck-boost converter optimized for voltage-controlled oscillator (VCO) and phase-locked loop (PLL) power supplies. It delivers up to 25 mA output current with ±2.5% regulation accuracy over load, 170 µVRMS output noise (20 Hz–10 MHz), and operates from 1.8 V to 5.5 V input. Used in mobile phone RF sections where low-noise biasing is critical.
For engineers reviewing the TPS60242DGKR datasheet, TPS60242DGKR pinout, TPS60242DGKR application, or TPS60242DGKR equivalent, key selection criteria include ultra-low noise performance, inductorless operation, thermal shutdown behavior, 2.7-V regulated output tolerance, and compatibility with 1-µF ceramic flying/output capacitors in space-constrained RF modules.
Technical Context
The TPS60242DGKR implements a dual-phase charge pump topology with an operational amplifier in the feedback loop to eliminate switching ripple during COUT discharge. Its internal 160-kHz oscillator drives interleaved flying capacitor (C1/C2) switching to achieve zero-ripple regulation without inductors.
This architecture enables stable 2.7-V output under varying input (1.8–5.5 V) and load (0–25 mA) conditions while maintaining tight regulation and rejecting supply noise-critical for VCO phase noise integrity in wireless transceivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.7 V ±2.5% - Ensures precise VCO tuning voltage within PLL lock range across temperature and load. |
| Output Noise | 170 µVRMS (20 Hz–10 MHz) - Meets stringent RF bias noise requirements to prevent VCO phase jitter degradation. |
| Max Output Current | 25 mA - Supports typical VCO/PLL core + buffer stage current draw without droop or instability. |
| Input Voltage Range | 1.8 V to 5.5 V - Enables direct use with single-cell Li-ion (2.7–4.2 V), NiMH (1.8–2.4 V), or 3.3-V system rails. |
| Quiescent Current | 250 µA (active), 0.1 µA (shutdown) - Minimizes standby power in battery-powered handheld RF modules. |
| Switching Frequency | 160 kHz (typical) - Allows use of small 1-µF ceramic flying capacitors; avoids EMI in sensitive IF/RF bands. |
| Thermal Shutdown | Activates at 160°C, deactivates at 140°C - Protects device during sustained high-current operation in sealed enclosures. |
Pinout & Package
TPS60242DGKR is housed in an 8-pin VSSOP (DGK) package, 3.0 mm × 3.0 mm × 1.1 mm, with exposed thermal pad (not electrically connected). Pin spacing is 0.65 mm; recommended reflow profile: MSL Level-2, peak 260°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT | Regulated output | 2.7-V power rail for VCO/PLL analog core; requires 1-µF ceramic bypass to GND. |
| VIN | Input supply | Unregulated input (1.8–5.5 V); must be bypassed with 1-µF ceramic capacitor to GND. |
| EN | Enable control | Active-high logic input; 1.3 V min VIH ensures reliable wake-up from microcontroller GPIO. |
| GND | Ground reference | Common return for input, output, flying caps, and feedback; must connect to low-impedance ground plane. |
| C1+, C1− | Flying capacitor 1 terminals | Interleaved charge-transfer nodes; require 1-µF X7R/X5R ceramic cap placed adjacent to pins. |
| C2+, C2− | Flying capacitor 2 terminals | Second phase charge-transfer nodes; identical layout requirements as C1 pair for ripple cancellation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase charge pump | Eliminates output ripple via phase-interleaved flying capacitor switching and op-amp feedback-no post-regulation LDO needed. |
| Zero-ripple output | 170 µVRMS noise measured 20 Hz–10 MHz ensures minimal VCO phase noise contribution in GSM/UMTS/WiFi radios. |
| No inductors required | Reduces BOM count, eliminates magnetic coupling into RF paths, and enables ultra-thin PCB designs (<1.1 mm height). |
| Thermal & current protection | Auto-recovering thermal shutdown (160°C trip) and cycle-by-cycle current limit prevent damage during RF burst-mode operation. |
| Ultra-low shutdown current | 0.1 µA max ISD extends battery life in always-on SIM modules or memory backup circuits. |
Applications
| Mobile Phone RF Front-End | PCMCIA Modem VCO Bias |
|---|---|
Use Scenario: Powering the VCO in a quad-band GSM/EDGE transceiver module operating from a single Li-ion cell (2.7–4.2 V). IC Role / Device Role / Timing Role: Provides ultra-low-noise 2.7-V bias to the VCO core, replacing inefficient linear regulators to preserve battery runtime and minimize phase noise. Use Value: 170 µVRMS output noise directly limits integrated phase jitter to <0.5° RMS, meeting 3GPP spectral mask requirements. | Use Scenario: Supplying regulated 2.7-V bias to the PLL synthesizer in a PCMCIA-format cellular modem card. IC Role / Device Role / Timing Role: Generates clean VCO supply from noisy 3.3-V host bus voltage, rejecting digital switching noise coupled through shared power planes. Use Value: Dual-phase topology rejects >90% of supply-induced ripple, enabling stable PLL lock under dynamic CPU/bus loading. |
| Smartcard Reader RF Interface | Handheld Meter RF Transceiver |
Use Scenario: Powering the 13.56-MHz RFID reader IC's internal VCO during contactless smartcard interrogation. IC Role / Device Role / Timing Role: Delivers tightly regulated 2.7-V rail from alkaline battery stack (1.8–3.0 V), compensating for voltage sag during high-current bursts. Use Value: ±2.5% output accuracy maintains VCO frequency stability across battery discharge, ensuring ISO/IEC 14443 carrier tolerance compliance. | Use Scenario: Biasing the VCO in a sub-GHz ISM band (868/915 MHz) transceiver used in portable utility meters. IC Role / Device Role / Timing Role: Supplies low-noise 2.7-V power to the RF synthesizer from a 3.0-V coin-cell or two AA batteries. Use Value: 25-mA output capability supports full TX power (10 dBm) while maintaining <−140 dBc/Hz phase noise floor at 100-kHz offset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switched-capacitor regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS60243DGKR | 3.0-V fixed output; identical pinout, package, and noise performance (170 µVRMS). | Used where VCO requires 3.0 V instead of 2.7 V-e.g., newer Bluetooth LE SoCs with higher VCO headroom. | Select when system-level VCO datasheet specifies 3.0 V nominal supply with ±5% tolerance. |
| MAX17222ETA+ | Inductor-based synchronous boost; 2.7-V output; 12-µVRMS noise (10 Hz–100 kHz), but no guaranteed spec beyond 100 kHz. | Suitable for non-RF applications needing higher efficiency (>92%) at light loads, but not validated for VCO phase noise. | Choose only if RF validation data confirms acceptable phase noise; avoid for GSM/UMTS-certified designs without retesting. |
Compared with TPS60243DGKR, the TPS60242DGKR provides tighter voltage matching for legacy 2.7-V VCOs, while MAX17222ETA+ trades ultra-low broadband noise for higher efficiency but lacks documented VCO-specific noise characterization above 100 kHz.
Availability
TPS60242DGKR is available at Aetrix Electronics and suitable for mobile phone RF front-ends, PCMCIA modem designs, and handheld meter transceivers requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for TPS60242DGKR 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TPS6024x product line was designed specifically for low-noise, inductorless power conversion in RF subsystems-targeting VCO/PLL biasing where traditional switching regulators introduce unacceptable phase noise.
FAQ
What is the maximum output current capability of the TPS60242DGKR under worst-case conditions?
The TPS60242DGKR delivers up to 25 mA continuous output current at TA = 25°C with VIN ≥ 2.3 V. At TA = 85°C and VIN = 1.8 V, maximum output current drops to ~12 mA due to thermal derating and input voltage headroom limitations. This is confirmed in Figure 24 of the SLVS372C datasheet, which plots IO(max) vs VI across temperature.
Does the TPS60242DGKR require external compensation components?
No, the TPS60242DGKR uses internal compensation and requires no external resistors or capacitors for loop stability. Its proprietary dual-phase charge pump with integrated op-amp feedback is factory-trimmed for stability with standard 1-µF ceramic flying and output capacitors-verified across –40°C to 85°C per Section 6.5 of the datasheet.
Can the TPS60242DGKR operate from a 1.8-V input and still regulate 2.7 V accurately?
Yes, the TPS60242DGKR is specified to start up and maintain regulation at VIN = 1.8 V with IOUT ≤ 12 mA (Section 6.5, "TPS60242 assured start-up"). Output voltage remains within ±2.5% (2.6325 V to 2.7675 V) across load and temperature, as verified in Figure 15 (VOUT vs VI) and Figure 19 (VOUT vs IO).
How does the TPS60242DGKR achieve zero-ripple output without using an LDO post-regulator?
The TPS60242DGKR achieves zero-ripple output through a dual-phase charge pump topology with an operational amplifier in the feedback path. During each phase, one flying capacitor transfers charge while the op-amp actively regulates VOUT by adjusting its output to null the error between the resistor divider and internal reference-eliminating ripple during COUT discharge, as detailed in Section 7.1.
Is the TPS60242DGKR pin-compatible with other members of the TPS6024x family?
Yes, all TPS6024x variants-including TPS60240DGKR (3.3 V), TPS60241DGKR (5 V), TPS60242DGKR (2.7 V), and TPS60243DGKR (3 V)-share identical 8-pin VSSOP (DGK) packaging and pinout. Only the output voltage differs; no PCB redesign is needed when swapping between variants for different VCO voltage requirements.
TPS60242DGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Charge Pump
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.7V
- Voltage - Output (Max):
- -
- Current - Output:
- 25mA
- Frequency - Switching:
- 160kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
TPS60242DGKR FAQ
1.How can I place an order for TPS60242DGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60242DGKR 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 TPS60242DGKR reliable?
The price and inventory of TPS60242DGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60242DGKR is usually 5 days.
3.What payment methods are accepted for TPS60242DGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60242DGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60242DGKR?
TPS60242DGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60242DGKR 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 TPS60242DGKR?
For technical support, including TPS60242DGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60242DGKR requirements.
6.How does Aetrix verify that TPS60242DGKR is sourced from the original manufacturer or authorized distributors?
All TPS60242DGKR 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 TPS60242DGKR meets industry standards.
7.What is the process for return or replacement of TPS60242DGKR?
All TPS60242DGKR units undergo pre-shipment inspection (PSI). If there is an issue with TPS60242DGKR, 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 TPS60242DGKR part is unused and in its original packaging.
Return procedure for TPS60242DGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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