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Texas Instruments TPS60242DGKT
- Part No.:
- TPS60242DGKT
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS60242DGKT.pdf
- Description:
- IC REG CHG PUMP 2.7V 25MA 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:998
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Product details
Overview
TPS60242DGKT from Texas Instruments is a switched-capacitor buck-boost DC-DC converter optimized for low-noise voltage-controlled oscillator (VCO) and phase-locked loop (PLL) power supplies. It delivers a regulated 2.7 V ±2.5% output from 1.8 V–5.5 V input, supports up to 25 mA load current, achieves 170 µVrms output noise (20 Hz–10 MHz), and operates with 90% peak efficiency - used in mobile phone RF sections requiring ultra-low ripple.
For engineers reviewing the TPS60242DGKT datasheet, TPS60242DGKT pinout, TPS60242DGKT application, or TPS60242DGKT equivalent, key selection criteria include its zero-ripple architecture, 8-pin VSSOP package, shutdown current of 0.1 µA, thermal protection at 160°C, and compatibility with only ceramic capacitors - no inductors required.
Technical Context
The TPS60242DGKT employs a proprietary dual-phase charge pump topology with an operational amplifier in the feedback loop to eliminate switching ripple during COUT discharge. Its fixed 160 kHz internal oscillator drives interleaved flying capacitor (C1/C2) switching, enabling ripple cancellation without external compensation.
It integrates thermal shutdown (trip at 160°C, reset at 140°C) and current limiting, supports logic-level enable control (VIH = 1.3 V), and maintains regulation across –40°C to +85°C ambient. Input bypassing requires only a 1 µF ceramic capacitor, and output stability is ensured with a 1 µF ceramic COUT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.7 V ±2.5% - tightly regulated for VCO bias stability across load and temperature |
| Input Voltage Range | 1.8 V to 5.5 V - supports single-cell Li-ion, NiMH, alkaline, and 3.3 V system rails |
| Max Output Current | 25 mA - sufficient for RF VCO/PLL core bias under full modulation conditions |
| Output Noise | 170 µVrms (20 Hz–10 MHz) - enables clean local oscillator performance without added LDO post-regulation |
| Efficiency | 90% peak - achieved at 10 mA load and 2.7 V input, minimizing thermal impact in compact RF modules |
| Quiescent Current | 250 µA typical - ensures minimal battery drain in always-on RF subsystems |
| Shutdown Current | 0.1 µA typical - enables deep-sleep mode for extended standby time in portable devices |
| Switching Frequency | 160 kHz typical - allows use of small 1 µF ceramic flying/output capacitors; avoids EMI-sensitive bands |
Pinout & Package
TPS60242DGKT is housed in an 8-pin VSSOP (DGK) package, 3.0 mm × 3.0 mm × 1.1 mm profile, thermally enhanced with exposed pad (not electrically connected). Pin spacing is 0.65 mm; recommended reflow per JEDEC Level-2-260°C-1 year.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Supplies converter; bypassed to GND with 1 µF ceramic capacitor to suppress input ripple |
| VOUT | Regulated output | Delivers 2.7 V to VCO/PLL; requires 1 µF ceramic capacitor to GND for stability and noise filtering |
| EN | Enable control | Active-high logic input; 1.3 V threshold allows direct interface with 1.8 V/3.3 V GPIOs |
| GND | Ground reference | Common return for input, output, and flying capacitors; must be low-impedance plane for noise control |
| C1+, C1− | Flying capacitor terminals | Interleaved charge-transfer nodes for first phase of dual-pump operation; require 1 µF ceramic caps |
| C2+, C2− | Flying capacitor terminals | Interleaved charge-transfer nodes for second phase; synchronized with C1 to cancel ripple |
Key Features
| Feature | Design Value |
|---|---|
| Zero-ripple output | 170 µVrms over 20 Hz–10 MHz enables direct VCO powering without post-LDO filtering |
| Dual-phase charge pump | Eliminates need for magnetic components - reduces BOM count, board area, and EMI vs inductor-based solutions |
| Ultra-low shutdown current | 0.1 µA allows integration into battery-powered systems with multi-week standby capability |
| Integrated protection | Thermal shutdown (160°C trip) and current limit ensure robust operation under fault or overload |
| Small-footprint packaging | 8-pin VSSOP (3.0 × 3.0 mm) supports high-density RF module layouts with minimal PCB real estate |
Applications
| VCO Power Supply | PLL Reference Bias |
|---|---|
Use Scenario: Powers the tuning voltage input of a GSM/UMTS VCO in a mobile handset transceiver. IC Role / Device Role / Timing Role: Provides ultra-low-noise 2.7 V bias to maintain oscillator phase noise < –140 dBc/Hz at 1 MHz offset. Use Value: Eliminates need for secondary LDO, reducing component count and power loss while meeting 3GPP spectral mask requirements. |
Use Scenario: Supplies clean reference voltage to the charge pump and loop filter of a Bluetooth LE PLL. IC Role / Device Role / Timing Role: Delivers stable 2.7 V with <170 µVrms noise to minimize jitter accumulation in frequency synthesis. Use Value: Enables sub-10 ps integrated jitter performance without additional filtering, supporting BLE 5.0 timing accuracy. |
| Smartcard Reader RF Front-End | Handheld Meter RF Module |
Use Scenario: Powers the 13.56 MHz RFID reader IC's VCO in ISO/IEC 14443-compliant smartcard readers. IC Role / Device Role / Timing Role: Generates low-noise 2.7 V supply to sustain carrier stability during card polling and data exchange. Use Value: Prevents carrier drift and read errors caused by supply-induced frequency modulation, improving field reliability. |
Use Scenario: Supplies the VCO in a narrowband IoT meter's sub-GHz RF transceiver operating on coin-cell batteries. IC Role / Device Role / Timing Role: Delivers regulated 2.7 V with 0.1 µA shutdown current to extend battery life beyond 5 years. Use Value: Enables long-term deployment without maintenance while maintaining FCC Part 15 spectral compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switched-capacitor voltage converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS60240DGKT | 3.3 V fixed output; identical pinout, package, and noise performance (170 µVrms) | Used where system requires 3.3 V VCO bias instead of 2.7 V; not interchangeable without circuit redesign | Select when target VCO nominal supply is 3.3 V and input range remains 1.8–5.5 V |
| TPS60243DGKT | 3.0 V fixed output; same thermal/current limits, efficiency, and shutdown behavior | Suitable for 3.0 V PLL cores (e.g., certain GPS/GNSS front-ends); output voltage mismatch prevents drop-in replacement | Choose for 3.0 V bias rails - verify VCO absolute max rating and regulation tolerance before substitution |
Compared with TPS60240DGKT and TPS60243DGKT, the TPS60242DGKT provides the only 2.7 V option in the family - critical for legacy VCOs designed for 2.7 V nominal operation and tighter headroom margins in low-voltage battery systems.
Availability
TPS60242DGKT is available at Aetrix Electronics and suitable for mobile phone RF modules, Bluetooth LE transceivers, smartcard readers, and handheld utility meters requiring stable component supply, guaranteed traceability, and long-lifecycle support.
Supply support for TPS60242DGKT 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, embedded processing, and power management technologies, with leadership in precision analog and low-noise power solutions.
The TPS6024x product line was engineered specifically for RF system designers needing ultra-low-noise, inductorless DC-DC conversion for VCO and PLL bias - addressing phase noise, size, and battery-life constraints in portable wireless devices.
FAQ
What is the output voltage accuracy of the TPS60242DGKT over temperature and load?
The TPS60242DGKT maintains output voltage within ±2.5% of 2.7 V across –40°C to +85°C ambient temperature and 0–25 mA load current. This specification is guaranteed per TI's SLVS372C datasheet, with typical deviation ≤±0.3% at 25°C and 10 mA. The tight tolerance ensures consistent VCO tuning sensitivity and minimizes frequency drift in RF systems.
Can the TPS60242DGKT operate from a 1.8 V input and still deliver 25 mA at 2.7 V?
Yes - the TPS60242DGKT supports 1.8 V minimum input and delivers up to 25 mA at 2.7 V output, as confirmed in Section 6.3 (Recommended Operating Conditions) and Figure 24 (Maximum Output Current vs Input Voltage) of the datasheet. At VIN = 1.8 V, maximum continuous output current is 12 mA; full 25 mA is achievable at VIN ≥ 2.3 V.
Does the TPS60242DGKT require external compensation components?
No - the TPS60242DGKT uses an internal op-amp-based feedback loop with proprietary dual-phase control, eliminating the need for external compensation. Only four 1 µF ceramic capacitors (CIN, COUT, C1, C2) are required. This simplifies layout, reduces cost, and ensures stability across all operating conditions without tuning.
How does the TPS60242DGKT achieve 170 µVrms output noise?
The TPS60242DGKT achieves 170 µVrms noise via its dual-phase charge pump architecture: interleaved flying capacitor switching cancels ripple, while the op-amp feedback actively regulates during COUT discharge. Measured over 20 Hz–10 MHz bandwidth with 4.7 µF COUT, this performance meets stringent RF VCO requirements without post-filtering.
Is the TPS60242DGKT pin-compatible with other devices in the TPS6024x family?
Yes - all TPS6024x variants (TPS60240/41/42/43) share identical 8-pin VSSOP (DGK) pinout and footprint. However, output voltage is factory-fixed per part number: TPS60242DGKT is 2.7 V only. Swapping with TPS60240DGKT (3.3 V) or TPS60243DGKT (3.0 V) requires verifying downstream device voltage ratings and regulation margin.
TPS60242DGKT 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:
- Active
- 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
TPS60242DGKT FAQ
1.How can I place an order for TPS60242DGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60242DGKT 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 TPS60242DGKT reliable?
The price and inventory of TPS60242DGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60242DGKT is usually 5 days.
3.What payment methods are accepted for TPS60242DGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60242DGKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60242DGKT?
TPS60242DGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60242DGKT 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 TPS60242DGKT?
For technical support, including TPS60242DGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60242DGKT requirements.
6.How does Aetrix verify that TPS60242DGKT is sourced from the original manufacturer or authorized distributors?
All TPS60242DGKT 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 TPS60242DGKT meets industry standards.
7.What is the process for return or replacement of TPS60242DGKT?
All TPS60242DGKT units undergo pre-shipment inspection (PSI). If there is an issue with TPS60242DGKT, 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 TPS60242DGKT part is unused and in its original packaging.
Return procedure for TPS60242DGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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