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Texas Instruments TPS60240DGKT
- Part No.:
- TPS60240DGKT
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS60240DGKT.pdf
- Description:
- IC REG CHG PUMP 3.3V 25MA 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:722
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Product details
Overview
TPS60240DGKT 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 3.3 V ±2.5% output from 1.8 V to 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 - all in an 8-pin VSSOP package without inductors.
For engineers reviewing the TPS60240DGKT datasheet, TPS60240DGKT pinout, TPS60240DGKT application, or TPS60240DGKT equivalent, key selection criteria include ultra-low ripple for RF biasing, input voltage flexibility across single/dual-cell battery systems, shutdown current below 1 µA, thermal protection at 160°C, and compatibility with only four 1-µF ceramic capacitors.
Technical Context
The TPS60240DGKT implements a proprietary dual-phase charge pump architecture with an operational amplifier in the feedback loop to actively suppress ripple during capacitor discharge. Its fixed 160 kHz switching frequency enables use of small surface-mount ceramics while eliminating magnetic components.
This topology separates flying capacitor charging and discharging phases across two independent charge pumps (C1 and C2), with the op-amp dynamically adjusting the intermediate node to maintain precise 3.3 V regulation - enabling zero-ripple performance critical for VCO supply stability and phase noise reduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3 V ±2.5% over load and temperature - ensures stable VCO tuning voltage within PLL lock range |
| Max Output Current | 25 mA continuous - sufficient for typical VCO/PLL core bias and control circuitry |
| Output Noise | 170 µVrms (20 Hz–10 MHz bandwidth) - minimizes phase jitter in RF synthesizers |
| Efficiency | Up to 90% at 10 mA, VIN = 1.8 V - extends battery life in portable RF modules |
| Quiescent Current | 250 µA typical operating, 0.1 µA in shutdown - enables low-power sleep modes |
| Input Voltage Range | 1.8 V to 5.5 V - supports alkaline/nickel-based 2-cell and Li-ion/Li-poly single-cell sources |
| Switching Frequency | 100–300 kHz (typ. 160 kHz) - balances capacitor size, EMI, and ripple suppression |
Pinout & Package
TPS60240DGKT uses an 8-pin VSSOP (DGK) package with 1.1 mm profile, optimized for space-constrained RF modules and handheld devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT | Regulated output | 3.3 V supply rail for VCO/PLL core; requires 1-µF ceramic bypass to GND |
| VIN | Power input | 1.8–5.5 V source; bypassed with 1-µF ceramic capacitor to GND |
| GND | Ground reference | Common return for input, output, and flying capacitors; must be low-impedance |
| EN | Enable control | Active-high logic input; <0.4 V disables device, >1.3 V enables with 0.5 ms start-up |
| C1+, C1− | Flying capacitor 1 terminals | Charge/discharge path for first phase; connect 1-µF ceramic between them |
| C2+, C2− | Flying capacitor 2 terminals | Charge/discharge path for second phase; connect 1-µF ceramic between them |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase charge pump | Eliminates output ripple via interleaved capacitor switching and op-amp feedback - no post-regulation LDO needed |
| No-inductor design | Reduces EMI, board area, and BOM cost versus inductive DC-DC; only four 1-µF ceramics required |
| Thermal shutdown | Auto-recovers at 140°C after trip at 160°C - protects against sustained overload in sealed enclosures |
| Current limiting | Prevents damage during short-circuit or excessive load; maintains safe operation under fault conditions |
| Ultra-low shutdown current | 0.1 µA max - preserves battery charge during system standby in always-on RF receivers |
Applications
| Smartphone VCO Power | PCMCIA Modem PLL Supply |
|---|---|
Use Scenario: Powers the VCO in a 4G LTE transceiver front-end where phase noise directly impacts EVM and adjacent channel leakage. IC Role / Device Role / Timing Role: Provides ultra-low-noise 3.3 V bias to VCO core, replacing inefficient LDOs that degrade close-in phase noise. Use Value: 170 µVrms noise enables <–110 dBc/Hz @ 10 kHz offset, meeting 3GPP spectral mask requirements. | Use Scenario: Supplies clean 3.3 V to the PLL in a PCMCIA wireless modem card operating from a 3.3 V host bus with tight thermal constraints. IC Role / Device Role / Timing Role: Regulates VCO voltage while rejecting digital noise coupling from shared PCB traces and connectors. Use Value: Dual-phase topology rejects supply ripple better than single-stage charge pumps, reducing PLL lock time by 35%. |
| Digital Camera RF Module | Handheld Meter Bias Supply |
Use Scenario: Powers the VCO in a Wi-Fi/BT combo module embedded in a compact digital camera, where board space limits inductor use. IC Role / Device Role / Timing Role: Delivers regulated 3.3 V from a 3.6 V Li-ion cell with minimal footprint and zero magnetic field emission. Use Value: 8-pin VSSOP + four 0805 capacitors occupies <12 mm² - 40% smaller than equivalent inductive solution. | Use Scenario: Supplies precision 3.3 V to analog front-end circuitry and RF sensor interface in a battery-powered handheld multimeter. IC Role / Device Role / Timing Role: Acts as low-noise auxiliary supply for ADC reference and RF signal conditioning stages. Use Value: 250 µA quiescent current extends 2xAA alkaline battery life to >18 months in typical usage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switched-capacitor regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS60241DGKT | Fixed 5 V output; requires 2.7–5.5 V input; same pinout and package | Used where VCO/PLL requires 5 V bias (e.g., legacy GSM PA drivers) | Select when system-level voltage rails mandate 5 V instead of 3.3 V - no layout change needed |
| MAX17222ELT+T | Inductor-based boost converter; 3.3 V output; 1.8–5.5 V input; 150 mA output; higher IQ (1.5 µA) | Suitable for higher-current or wider-input-range applications where inductors are acceptable | Choose if >25 mA load or tighter line regulation is required - trades board area for current capability |
Compared with TPS60241DGKT, the TPS60240DGKT provides lower output voltage for modern low-voltage VCOs and broader input compatibility down to 1.8 V; compared with MAX17222ELT+T, it eliminates EMI-sensitive inductors and achieves lower noise but at reduced output current capacity.
Availability
TPS60240DGKT is available at Aetrix Electronics and suitable for smartphone RF modules, PCMCIA modems, digital camera transceivers, and handheld meter designs requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TPS60240DGKT 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 connectivity technologies with decades of power management innovation.
The TPS6024x product line was designed specifically for low-noise, inductorless power delivery to voltage-controlled oscillators and PLL circuits in portable wireless equipment - prioritizing ripple suppression, battery efficiency, and minimal external components.
FAQ
What is the minimum input voltage required for reliable startup of the TPS60240DGKT?
The TPS60240DGKT guarantees startup at 1.8 V input with ≤5 mA load and 600 Ω effective load resistance. Below 1.8 V, operation is not specified. This 1.8 V threshold allows direct use with discharged 2-cell alkaline or NiMH batteries, making the TPS60240DGKT suitable for long-life portable RF applications where deep discharge tolerance is essential.
How does the TPS60240DGKT achieve 170 µVrms output noise without an LDO?
The TPS60240DGKT achieves 170 µVrms noise through its dual-phase charge pump architecture combined with an integrated op-amp in the feedback loop. Unlike conventional charge pumps, this design actively regulates during capacitor discharge, eliminating ripple at the source rather than filtering it downstream - a key differentiator confirmed in the SLVS372C datasheet Figure 29 and Section 7.1.
Can the TPS60240DGKT operate with input voltages above 3.3 V, and what is the impact on efficiency?
Yes, the TPS60240DGKT supports input voltages up to 5.5 V. Efficiency remains above 85% at 10 mA load for VIN = 3.3 V to 5.5 V (per Figure 10), dropping only marginally due to increased switching losses. This wide input range allows flexible integration across multiple battery chemistries and system rails without redesign - a verified capability per Section 6.3 Recommended Operating Conditions.
What external components are mandatory for basic operation of the TPS60240DGKT?
Four mandatory external components are required: one 1-µF input capacitor (CIN) from VIN to GND, one 1-µF output capacitor (COUT) from VOUT to GND, and two 1-µF flying capacitors (C1 and C2) connected between C1+/C1− and C2+/C2− respectively. No inductors, diodes, or resistors are needed - confirmed in Section 1 Features and Figure 32 of the TPS60240DGKT datasheet.
Is the TPS60240DGKT pin-compatible with other members of the TPS6024x family?
Yes, all TPS6024x variants - including TPS60240DGKT, TPS60241DGKT, TPS60242DGKT, and TPS60243DGKT - share identical 8-pin VSSOP (DGK) packaging and pinout. Only the output voltage differs (3.3 V, 5 V, 2.7 V, 3 V), allowing hardware reuse across designs with different bias requirements - explicitly stated in the Device Information table on page 2 of SLVS372C.
TPS60240DGKT 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):
- 3.3V
- 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
TPS60240DGKT FAQ
1.How can I place an order for TPS60240DGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60240DGKT 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 TPS60240DGKT reliable?
The price and inventory of TPS60240DGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60240DGKT is usually 5 days.
3.What payment methods are accepted for TPS60240DGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60240DGKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60240DGKT?
TPS60240DGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60240DGKT 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 TPS60240DGKT?
For technical support, including TPS60240DGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60240DGKT requirements.
6.How does Aetrix verify that TPS60240DGKT is sourced from the original manufacturer or authorized distributors?
All TPS60240DGKT 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 TPS60240DGKT meets industry standards.
7.What is the process for return or replacement of TPS60240DGKT?
All TPS60240DGKT units undergo pre-shipment inspection (PSI). If there is an issue with TPS60240DGKT, 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 TPS60240DGKT part is unused and in its original packaging.
Return procedure for TPS60240DGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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