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Texas Instruments TPS60241DGKT
- Part No.:
- TPS60241DGKT
- Manufacturer:
- Texas Instruments
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS60241DGKT.pdf
- Description:
- IC REG CHARG PUMP 5V 25MA 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:385
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Product details
Overview
TPS60241DGKT from Texas Instruments is a 5-V, ±2.5% accurate switched-capacitor buck-boost converter optimized for low-noise voltage-controlled oscillator (VCO) and phase-locked loop (PLL) power supplies. It delivers up to 25 mA output current with 170 µVrms output noise (20 Hz–10 MHz), operates from 2.7 V to 5.5 V input, and achieves up to 90.8% efficiency at 10 mA load - enabling clean, stable bias in RF timing circuits.
For engineers reviewing the TPS60241DGKT datasheet, TPS60241DGKT pinout, TPS60241DGKT application, or TPS60241DGKT equivalent, this page provides verified specifications, validated pin functions, confirmed VCO/PLL use cases, thermal shutdown behavior, and real-world efficiency vs. load curves - all extracted from TI's official SLVS372C datasheet (October 2015 revision).
Technical Context
The TPS60241DGKT implements a proprietary dual-phase charge pump architecture with an operational amplifier in the feedback loop to eliminate ripple during COUT discharge. Unlike standard single-phase charge pumps, it alternates flying capacitor C1 and C2 between charging and discharging phases while maintaining regulation via precision reference tracking.
It features active thermal shutdown (trip at ~160°C, resume at ~140°C), cycle-by-cycle current limiting, and logic-controlled enable (EN) with 0.5 ms typical start-up time to 90% of 5 V. No inductors are required - only four 1-µF ceramic capacitors (CIN, COUT, C1, C2) achieve full functionality in minimal board space.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5 V ±2.5% (±125 mV tolerance over load and temperature - ensures stable VCO tuning voltage) |
| Input Voltage Range | 2.7 V to 5.5 V (supports direct operation from Li-ion, 3.3-V rails, or USB-powered systems) |
| Max Output Current | 25 mA continuous (sufficient for most VCO/PLL core biasing without thermal derating at 25°C) |
| Output Noise | 170 µVrms (20 Hz–10 MHz bandwidth - critical for minimizing phase noise in RF synthesizers) |
| Efficiency | 90.8% at 10 mA, VIN = 2.7 V (high conversion efficiency preserves battery life in portable RF modules) |
| Quiescent Current | 250 µA typical (enables always-on PLL biasing with minimal standby power draw) |
| Shutdown Current | 0.1 µA typical (allows deep-sleep mode in battery-critical applications like SIM modules) |
Pinout & Package
TPS60241DGKT is housed in an 8-pin VSSOP (DGK) package with 0.65-mm pitch and 1.1-mm max height - suitable for space-constrained RF front-end layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Supplies 2.7–5.5 V; requires 1-µF bypass capacitor to GND for stability and noise suppression |
| VOUT | Regulated output | Delivers 5-V ±2.5% output; must be bypassed with 1-µF ceramic capacitor to GND for low-noise performance |
| EN | Enable control | Active-high logic input; rising edge initiates 0.5-ms start-up; drives <0.1 µA in shutdown |
| GND | Ground reference | Common return path for input, output, and flying capacitors; requires low-impedance PCB connection |
| C1+, C1− | Flying capacitor terminals | Interface with external 1-µF ceramic capacitor C1; polarity-sensitive - C1+ connects to VIN/C2−, C1− to GND/VOUT |
| C2+, C2− | Flying capacitor terminals | Interface with external 1-µF ceramic capacitor C2; polarity-sensitive - C2+ connects to VIN/VOUT, C2− to GND |
Key Features
| Feature | Design Value |
|---|---|
| Zero-ripple output | 170 µVrms noise over 20 Hz–10 MHz enables direct VCO powering without additional LDO filtering |
| Dual-phase charge pump | Alternating C1/C2 switching reduces output ripple by >50% vs. single-phase topologies - critical for phase noise-sensitive PLLs |
| No-inductor design | Eliminates EMI-prone magnetics and simplifies layout - ideal for compact handheld RF modules |
| Thermal protection | Auto-shutdown at ~160°C junction temperature prevents damage during sustained overload or poor heatsinking |
| Low quiescent current | 250 µA operating current allows integration into always-on timing subsystems without compromising system battery life |
Applications
| VCO Power Supply | PLL Reference Bias |
|---|---|
|
Use Scenario: Providing ultra-low-noise 5-V supply to voltage-controlled oscillators in cellular transceivers. IC Role / Device Role / Timing Role: Primary regulated bias source for VCO core - directly sets tuning line voltage and impacts phase noise floor. Use Value: 170 µVrms output noise minimizes VCO phase jitter, supporting 5G NR and LTE-A carrier aggregation requirements. |
Use Scenario: Delivering stable 5-V reference voltage to PLL charge pump and VCO control inputs in mobile phone baseband ICs. IC Role / Device Role / Timing Role: Precision low-noise regulator for PLL loop filter and VCO tuning port - maintains loop stability and lock time. Use Value: ±2.5% output accuracy and <0.5 ms start-up ensure fast, repeatable PLL lock across temperature and battery voltage variation. |
| Smartcard Reader Power | PCMCIA Modem Bias |
|
Use Scenario: Generating clean 5-V rail for ISO/IEC 7816 smartcard interface circuitry in point-of-sale terminals. IC Role / Device Role / Timing Role: Dedicated low-noise DC-DC converter for card reader analog front-end - isolates sensitive I/O from noisy system rails. Use Value: Shutdown current of 0.1 µA enables zero-power card-detect standby mode, extending terminal battery life. |
Use Scenario: Supplying regulated 5-V power to PCMCIA modem RF sections in legacy laptop expansion cards. IC Role / Device Role / Timing Role: Compact, inductorless boost converter replacing inefficient linear regulators - reduces heat and board area. Use Value: 8-pin VSSOP footprint and 1.1-mm height allow integration into tight PCMCIA Type II form factor constraints. |
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 (vs. 5-V); identical pinout, package, and noise performance (170 µVrms) | Designed for 3.3-V VCO/PLL systems - not interchangeable without redesigning feedback or load interface | Select when system requires 3.3-V regulated output and shares same layout; no PCB changes needed |
| MAX862ESA+ | 5-V output but higher 250 µVrms noise; uses different charge-pump topology and requires 3 external caps (not 4) | Lacks integrated thermal shutdown and has lower 15-mA output current limit - unsuitable for sustained 25-mA VCO loads | Consider only for cost-sensitive, non-critical RF bias where 80 µVrms noise margin is acceptable |
Compared with TPS60241DGKT, TPS60240DGKT offers identical form-factor and noise performance but targets 3.3-V systems, while MAX862ESA+ trades noise and current capability for reduced component count - making TPS60241DGKT the optimal choice for 5-V, low-phase-noise VCO applications demanding reliability and headroom.
Availability
TPS60241DGKT is available at Aetrix Electronics and suitable for VCO power supplies, PLL reference biasing, and smartcard reader designs requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for TPS60241DGKT 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 high-reliability power management solutions for industrial, automotive, and communications markets.
The TPS6024x family was designed specifically to replace inefficient LDOs in RF timing circuits - delivering ultra-low-noise, inductorless DC-DC conversion for VCOs, PLLs, and other phase-sensitive analog blocks.
FAQ
What is the maximum output current capability of the TPS60241DGKT under continuous operation?
The TPS60241DGKT delivers up to 25 mA of continuous output current at 25°C ambient temperature with proper thermal layout. At 85°C, maximum output current drops to approximately 15 mA due to thermal limiting - confirmed in Figure 24 of the SLVS372C datasheet. Derating must be applied above 25°C to maintain regulation and avoid thermal shutdown.
Does the TPS60241DGKT require external inductors for operation?
No, the TPS60241DGKT is a switched-capacitor (charge pump) converter and requires no inductors. It operates using four external ceramic capacitors: CIN, COUT, C1, and C2 - all specified as 1 µF in the datasheet. This eliminates magnetic EMI and simplifies PCB layout for RF-sensitive applications.
How does the TPS60241DGKT achieve its 170 µVrms output noise specification?
The TPS60241DGKT achieves 170 µVrms noise through a dual-phase charge pump topology combined with an op-amp-based feedback loop that actively regulates during COUT discharge - eliminating ripple inherent in conventional charge pumps. This is measured over 20 Hz–10 MHz bandwidth with 4.7-µF COUT, per Section 6.5 of SLVS372C.
What is the recommended startup sequence for the TPS60241DGKT in a system with multiple power domains?
The TPS60241DGKT starts within 0.5 ms after EN rises to >1.3 V (VIH threshold). For sequencing, assert EN only after VIN reaches ≥2.7 V and stabilizes. No external reset or delay circuitry is required - the device self-regulates and enters full operation autonomously once enabled and within input voltage range.
Can the TPS60241DGKT be used with input voltages below 2.7 V?
No - the TPS60241DGKT has a minimum input voltage of 2.7 V, as defined in Section 6.3 (Recommended Operating Conditions) of SLVS372C. Attempting operation below 2.7 V may result in failure to start or loss of regulation. For sub-2.7-V inputs, consider TPS60240DGKT (1.8–5.5 V, 3.3-V output) instead.
TPS60241DGKT 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):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 5V
- 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
TPS60241DGKT FAQ
1.How can I place an order for TPS60241DGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60241DGKT 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 TPS60241DGKT reliable?
The price and inventory of TPS60241DGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60241DGKT is usually 5 days.
3.What payment methods are accepted for TPS60241DGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60241DGKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60241DGKT?
TPS60241DGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60241DGKT 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 TPS60241DGKT?
For technical support, including TPS60241DGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60241DGKT requirements.
6.How does Aetrix verify that TPS60241DGKT is sourced from the original manufacturer or authorized distributors?
All TPS60241DGKT 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 TPS60241DGKT meets industry standards.
7.What is the process for return or replacement of TPS60241DGKT?
All TPS60241DGKT units undergo pre-shipment inspection (PSI). If there is an issue with TPS60241DGKT, 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 TPS60241DGKT part is unused and in its original packaging.
Return procedure for TPS60241DGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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