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Texas Instruments TPS60243DGKT
- Part No.:
- TPS60243DGKT
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS60243DGKT.pdf
- Description:
- IC REG CHARG PUMP 3V 25MA 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:773
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Product details
Overview
TPS60243DGKT 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-V output with ±2.5% accuracy, supports 1.8 V to 5.5 V input, provides up to 25 mA output current, achieves 170 µVrms output noise (20 Hz–10 MHz), and operates in an 8-pin VSSOP package for space-constrained RF modules.
For engineers reviewing the TPS60243DGKT datasheet, TPS60243DGKT pinout, TPS60243DGKT application, or TPS60243DGKT equivalent, this device is selected for ultra-low-ripple biasing of sensitive RF timing circuits where inductor-free operation, tight output regulation, and sub-200 µVrms noise are mandatory design requirements.
Technical Context
The TPS60243DGKT implements a proprietary dual-phase charge pump architecture with operational amplifier feedback control to eliminate switching ripple during capacitor discharge cycles. Its fixed 160 kHz internal oscillator drives two flying capacitors (C1, C2) in interleaved phases to sustain continuous output current while maintaining zero-ripple behavior across load and input variations.
This topology avoids magnetic components entirely and relies on four external 1-µF ceramic capacitors-two flying (C1/C2), one input (CIN), and one output (COUT). Thermal shutdown (160°C trip, 140°C release) and current limiting ensure robust operation under fault conditions without external protection circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±2.5% - tightly regulated for VCO/PLL reference stability across temperature and load |
| 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 biasing multiple VCO cores or low-power PLL ICs |
| Output Noise | 170 µVrms (20 Hz–10 MHz) - enables clean RF signal generation without spurious sidebands |
| Quiescent Current | 250 µA - minimizes standby power in battery-operated handheld devices |
| Shutdown Current | 0.1 µA - extends battery life during sleep modes in portable RF systems |
| Switching Frequency | 160 kHz typical - allows use of small 0805 ceramic capacitors and avoids EMI in sensitive IF bands |
| Package | VSSOP-8 (DGK), 1.1 mm height - compact footprint compatible with high-density RF module layouts |
Pinout & Package
TPS60243DGKT is housed in an 8-pin VSSOP (DGK) package with 0.65 mm pitch and 1.1 mm maximum height, designed for automated assembly and thermal performance in thin-profile RF modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 1.8–5.5 V supply; requires 1-µF bypass capacitor to GND for stability |
| VOUT | Regulated output | Delivers 3.0 V ±2.5%; must be bypassed with 1-µF ceramic capacitor to GND |
| EN | Enable control | Active-high logic input; 1.3 V threshold ensures compatibility with 1.8-V and 3.3-V GPIOs |
| GND | Ground reference | Common return path for input, output, and flying capacitors; critical for noise integrity |
| C1+, C1− | Flying capacitor 1 terminals | Interleaved charge/discharge nodes for first phase of dual-pump operation |
| C2+, C2− | Flying capacitor 2 terminals | Interleaved charge/discharge nodes for second phase; enables ripple cancellation |
Key Features
| Feature | Design Value |
|---|---|
| Zero-ripple output | 170 µVrms over 20 Hz–10 MHz bandwidth eliminates VCO phase noise degradation |
| No-inductor design | Uses only four 1-µF ceramic capacitors - reduces BOM cost, board area, and EMI risk |
| Wide input range | 1.8 V minimum start-up supports aging batteries and low-voltage chemistries |
| Ultra-low shutdown current | 0.1 µA enables multi-year battery life in always-on RF sensor nodes |
| Thermal & current protection | Auto-recovering shutdown at 160°C and foldback current limit prevent field failures |
| Fast enable response | 0.5 ms start-up time to 90% VOUT ensures rapid RF subsystem activation |
Applications
| VCO Power Supply | PLL Reference Bias |
|---|---|
Use Scenario: Providing clean, stable bias to voltage-controlled oscillators in cellular front-end modules. IC Role / Device Role / Timing Role: Primary regulated 3-V supply for VCO core, replacing inefficient LDOs in RF transceivers. Use Value: 170 µVrms noise prevents phase jitter increase and adjacent-channel interference in LTE/5G bands. |
Use Scenario: Delivering low-noise reference voltage to PLL charge pumps in wireless baseband ICs. IC Role / Device Role / Timing Role: Precision 3-V rail for PLL loop filter and VCO tuning port. Use Value: ±2.5% output accuracy maintains loop lock range and frequency resolution under varying load. |
| Smartphone RF Front-End | PCMCIA Modem Power |
Use Scenario: Powering multi-band VCOs in compact smartphone antenna tuning systems. IC Role / Device Role / Timing Role: Compact, inductorless 3-V source integrated into RF module PCB. Use Value: VSSOP-8 package (1.1 mm height) fits beneath stacked RF die and preserves Z-height budget. |
Use Scenario: Generating stable 3-V bias for PLL-based clock recovery in legacy PCMCIA modems. IC Role / Device Role / Timing Role: Low-quiescent-current converter enabling modem sleep mode compliance. Use Value: 0.1 µA shutdown current meets PC Card power management specifications for suspend states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switched-capacitor regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS60240DGKT | 3.3-V fixed output; identical pinout, package, and noise performance | Suitable where system requires 3.3-V VCO bias instead of 3-V | Select when output voltage tolerance and noise specs match but 3.3-V regulation is needed |
| TPS60242DGKT | 2.7-V fixed output; same architecture, efficiency, and thermal specs | Used in legacy 2.7-V PLL designs or low-voltage RF ICs with tighter headroom | Choose for compatibility with existing 2.7-V reference designs requiring identical layout |
Compared with TPS60240DGKT and TPS60242DGKT, the TPS60243DGKT provides optimal voltage alignment for modern 3-V nominal RF ICs-avoiding overvoltage stress seen with 3.3-V variants while delivering higher margin than 2.7-V versions under load-induced droop.
Availability
TPS60243DGKT is available at Aetrix Electronics and suitable for RF front-end modules, cellular transceivers, and portable wireless infrastructure requiring stable component supply, low-noise DC-DC conversion, and long-lifecycle availability.
Supply support for TPS60243DGKT 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 technologies with over 50 years of innovation in precision analog ICs.
The TPS6024x family was engineered specifically for ultra-low-noise RF power delivery-targeting VCO and PLL biasing in mobile, wireless, and instrumentation systems where traditional inductor-based converters introduce unacceptable phase noise.
FAQ
What is the output voltage accuracy of the TPS60243DGKT over temperature and load?
The TPS60243DGKT delivers 3.0 V with ±2.5% accuracy across –40°C to +85°C and full load range (0–25 mA). This specification is guaranteed per TI's SLVS372C datasheet Section 6.5, ensuring stable VCO tuning voltage despite battery sag or ambient shifts. The TPS60243DGKT uses an internal precision reference and op-amp feedback to maintain regulation without external trimming.
Can the TPS60243DGKT operate from a single 1.8-V alkaline cell?
Yes, the TPS60243DGKT supports input voltages as low as 1.8 V and guarantees start-up at that level with ≤10 mA load (per Section 6.5). Its dual-phase charge pump efficiently boosts 1.8 V to 3.0 V, making it ideal for battery-powered handheld meters and remote sensors using standard AA/AAA cells. The TPS60243DGKT maintains regulation down to 1.8 V without brownout or dropout.
How does the TPS60243DGKT achieve 170 µVrms output noise?
The TPS60243DGKT achieves 170 µVrms noise via its dual-phase charge pump topology combined with linear op-amp feedback. Unlike single-phase pumps, it alternates C1 and C2 to sustain continuous current while the op-amp actively corrects ripple during COUT discharge. This eliminates switching artifacts in the 20 Hz–10 MHz band critical for VCO phase noise-verified in Figure 22 of the TPS60243DGKT datasheet.
What external components are required for basic operation of the TPS60243DGKT?
The TPS60243DGKT requires exactly four 1-µF ceramic capacitors: one input (CIN), one output (COUT), and two flying capacitors (C1, C2). No inductors, diodes, or resistors are needed. All capacitors should be X7R/X5R dielectric with ≤0.1 Ω ESR (e.g., Taiyo Yuden LMK212BJ105KG-T) to meet the 170 µVrms noise spec. Layout guidelines emphasize short traces to these caps-detailed in Section 10 of the TPS60243DGKT datasheet.
Is the TPS60243DGKT pin-compatible with other members of the TPS6024x family?
Yes, all TPS6024x variants-including TPS60240DGKT, TPS60241DGKT, TPS60242DGKT, and TPS60243DGKT-share identical VSSOP-8 (DGK) pinout, package dimensions, and terminal functions. This allows drop-in replacement across 2.7-V, 3.0-V, 3.3-V, and 5.0-V output versions without PCB redesign. The TPS60243DGKT differs only in internal feedback resistor ratio and output voltage setting.
TPS60243DGKT 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):
- 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
TPS60243DGKT FAQ
1.How can I place an order for TPS60243DGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60243DGKT 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 TPS60243DGKT reliable?
The price and inventory of TPS60243DGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60243DGKT is usually 5 days.
3.What payment methods are accepted for TPS60243DGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60243DGKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60243DGKT?
TPS60243DGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60243DGKT 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 TPS60243DGKT?
For technical support, including TPS60243DGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60243DGKT requirements.
6.How does Aetrix verify that TPS60243DGKT is sourced from the original manufacturer or authorized distributors?
All TPS60243DGKT 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 TPS60243DGKT meets industry standards.
7.What is the process for return or replacement of TPS60243DGKT?
All TPS60243DGKT units undergo pre-shipment inspection (PSI). If there is an issue with TPS60243DGKT, 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 TPS60243DGKT part is unused and in its original packaging.
Return procedure for TPS60243DGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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