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Analog Devices Inc. LTC3410ESC6-1.8
- Part No.:
- LTC3410ESC6-1.8
- Manufacturer:
- Analog Devices Inc.
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
LTC3410ESC6-1.8.pdf
- Description:
- IC REG BUCK 1.8V 300MA SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,778
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Product details
Overview
LTC3410ESC6-1.8 from Analog Devices (formerly Linear Technology) is a high-efficiency, monolithic synchronous step-down DC/DC regulator in SC70-6 package, delivering up to 300mA output current with fixed 1.8V output, 2.25MHz switching frequency, and ±2% output voltage accuracy over –40°C to 85°C. It operates from 2.5V to 5.5V input and supports 100% duty cycle for low-dropout operation in Li-ion battery-powered portable systems.
For engineers reviewing the LTC3410ESC6-1.8 datasheet, LTC3410ESC6-1.8 pinout, LTC3410ESC6-1.8 application, or LTC3410ESC6-1.8 equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternatives, and supply-chain support details - all specific to the fixed-output 1.8V variant in SC70-6.
Technical Context
The LTC3410ESC6-1.8 implements constant-frequency, current-mode control with internal P-channel main switch (RDS(ON) = 0.75Ω typ) and N-channel synchronous rectifier (RDS(ON) = 0.55Ω typ), enabling up to 96% peak efficiency and eliminating external Schottky diodes. Its 2.25MHz oscillator allows compact 2.2–4.7µH inductors and ceramic capacitors.
Burst Mode® operation delivers 26µA quiescent current at light loads while maintaining low output ripple (20mVP-P), and undervoltage lockout (UVLO) activates at 2.3V (rising) with thermal shutdown protection. The fixed 1.8V output is internally regulated via a precision 0.8V reference and resistive divider network tied to VOUT pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±2% at 100mA load - ensures stable core logic supply for low-voltage microcontrollers and sensors. |
| Input Voltage Range | 2.5V to 5.5V - compatible with single-cell Li-ion (2.7–4.2V) and USB-powered systems without external LDO pre-regulation. |
| Switching Frequency | 2.25MHz (typ) - enables use of sub-5mm surface-mount inductors and reduces output capacitor size vs lower-frequency regulators. |
| Max Output Current | 300mA continuous - sufficient for powering RF transceivers, display drivers, or sensor signal chains in portable devices. |
| Quiescent Current | 26µA in Burst Mode - extends battery runtime in standby modes (e.g., wireless modems in sleep state). |
| Shutdown Current | <1µA - enables full system power gating during deep-sleep or off-state with negligible leakage drain. |
| Efficiency Peak | 96% at VIN=3.6V, VOUT=1.8V, IOUT=100mA - minimizes thermal rise and PCB area in space-constrained handheld designs. |
Pinout & Package
Package: SC70-6 (6-lead plastic SC70), 2.0mm × 1.25mm × 0.9mm profile - suitable for ultra-compact portable PCBs with tight height constraints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RUN (Pin 1) | Enable control input | Logic-high (>1.5V) enables regulation; logic-low (<0.3V) forces shutdown with <1µA draw - used for system-level power sequencing. |
| GND (Pins 2, 5) | Power ground reference | Dual GND pins reduce ground impedance and improve EMI performance - must be connected to low-impedance PCB ground plane. |
| SW (Pin 3) | Switch node | Connects to inductor and internal P/N MOSFET drains - high dv/dt node requiring short, wide trace routing away from sensitive analog signals. |
| VIN (Pin 4) | Main input supply | Accepts 2.5–5.5V input; requires local 4.7µF ceramic decoupling - high-current path demanding low-ESR capacitor placement adjacent to pin. |
| VOUT (Pin 6) | Fixed-output feedback | Internally connected to 0.8V reference and precision divider - no external resistor needed; enables remote sensing when routed to load point. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Eliminates external Schottky diode - reduces BOM count, improves efficiency by ~5–8% vs asynchronous designs at medium loads. |
| Ceramic capacitor stability | No ESR dependency for loop stability - allows use of low-ESR X5R/X7R ceramics for <20mVP-P ripple and minimal footprint. |
| 100% duty cycle operation | Maintains regulation down to VIN ≈ VOUT - extends usable battery life in Li-ion discharge tail (e.g., 2.7V → 1.8V at end-of-life). |
| Burst Mode® low-IQ | 26µA operating IQ - achieves >85% efficiency at 1mA load, critical for always-on sensor nodes and IoT edge devices. |
| Overtemperature protection | Thermal shutdown at ~150°C junction - prevents catastrophic failure during sustained overload or poor heatsinking in sealed enclosures. |
Applications
| Cellular Telephones | Wireless Modems |
|---|---|
Use Scenario: Powering baseband processor core voltage in GSM/UMTS handsets with dynamic load ranging from 0.1mA (idle) to 300mA (transmit burst). IC Role / Device Role / Timing Role: Primary synchronous buck regulator supplying 1.8V core rail with fast transient response to handle RF PA switching events. Use Value: 96% peak efficiency and 26µA Burst Mode current extend talk time by >12% vs legacy 1.5MHz regulators under mixed-load profiles. |
Use Scenario: Regulating 1.8V supply for Wi-Fi/BT SoC in battery-powered home gateways with intermittent data transmission. IC Role / Device Role / Timing Role: Fixed-output step-down converter enabling rapid wake-from-sleep transitions with <10µs start-up time. Use Value: SC70-6 footprint and 2.25MHz operation allow integration into <100mm² PCB area alongside RF front-end components. |
| Digital Cameras | Portable Instruments |
Use Scenario: Supplying image sensor interface logic and ADC bias in compact action cameras during video capture (200–300mA pulses). IC Role / Device Role / Timing Role: High-transient-response buck regulator handling 300mA load steps with <1.5% output deviation and no external compensation. Use Value: Current-mode architecture and 2.25MHz switching minimize output voltage droop during autofocus motor activation. |
Use Scenario: Providing stable 1.8V rail for precision analog front-ends and low-power MCUs in handheld multimeters and gas detectors. IC Role / Device Role / Timing Role: Low-noise, low-ripple power source meeting EN 61326-1 EMC requirements for test equipment. Use Value: 20mVP-P ripple and ±2% accuracy ensure 16-bit ADC linearity without additional post-regulation filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRVR | Fixed 1.8V, 300mA, 3MHz switching, 17µA IQ, WSON-6 (2.0×2.0mm) | Higher frequency enables smaller inductors but tighter layout tolerances; lower IQ benefits ultra-low-power sleep modes. | Prefer for new designs targeting lowest possible quiescent current and where 3MHz EMI profile fits system filtering. |
| MAX17222ELT+T | Fixed 1.8V, 500mA, 2.5MHz, 2.5µA IQ, 6-bump WLP (1.22×0.83mm) | Higher current rating and smaller WLP package; significantly lower IQ but reduced thermal margin at full load. | Prefer when board space is extreme constraint and peak load exceeds 300mA intermittently. |
Compared with LTC3410ESC6-1.8, TPS62231DRVR offers lower IQ and higher frequency but requires more careful EMI mitigation, while MAX17222ELT+T provides superior miniaturization and ultra-low IQ at the cost of derated thermal performance above 350mA.
Availability
LTC3410ESC6-1.8 is available at Aetrix Electronics and suitable for cellular telephones, wireless modems, and digital cameras requiring stable component supply across extended production lifecycles and temperature ranges.
Supply support for LTC3410ESC6-1.8 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
Analog Devices (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and power management ICs, serving aerospace, industrial, automotive, and communications markets.
The LTC3410 product line was designed specifically for space-constrained, battery-powered portable electronics requiring high efficiency at both light and heavy loads - emphasizing low quiescent current, small footprint, and ceramic-capacitor compatibility.
FAQ
What is the maximum continuous output current of the LTC3410ESC6-1.8?
The LTC3410ESC6-1.8 delivers up to 300mA continuous output current at VIN = 3V and ambient temperatures ≤85°C, as validated in the datasheet's Electrical Characteristics table under "300mA Output Current at VIN = 3V". Derating is required above 70°C ambient or below 2.7V input due to RDS(ON) increase and thermal limits.
Does the LTC3410ESC6-1.8 require external feedback resistors?
No - the LTC3410ESC6-1.8 is a fixed-output variant with internal resistive divider connected to the VOUT pin (Pin 6), eliminating external resistors. This simplifies layout and improves accuracy versus adjustable versions like the LTC3410ESC6, which require external R1/R2.
What package type and dimensions does the LTC3410ESC6-1.8 use?
The LTC3410ESC6-1.8 uses the SC70-6 package: 6-lead plastic SC70 with 2.0mm × 1.25mm body size and 0.9mm max height. Pin pitch is 0.65mm, and the package marking code for this variant is LCNC, per the manufacturer's ordering information table.
How does Burst Mode® operation affect efficiency at light loads for the LTC3410ESC6-1.8?
In Burst Mode®, the LTC3410ESC6-1.8 reduces quiescent current to 26µA and operates intermittently, achieving >85% efficiency at 1mA load (VIN = 3.6V). This avoids the efficiency collapse seen in forced-continuous-mode regulators, making it ideal for standby power in always-on portable devices.
Is the LTC3410ESC6-1.8 RoHS-compliant and lead-free?
Yes - the LTC3410ESC6-1.8 is offered in lead-free versions with #PBF or #TRPBF suffixes, compliant with RoHS Directive 2011/65/EU. Lead-free part marking follows Analog Devices' standard scheme and is documented in the official package marking guide.
LTC3410ESC6-1.8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 300mA
- Frequency - Switching:
- 2.25MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-6
LTC3410ESC6-1.8 FAQ
1.How can I place an order for LTC3410ESC6-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3410ESC6-1.8 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 LTC3410ESC6-1.8 reliable?
The price and inventory of LTC3410ESC6-1.8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3410ESC6-1.8 is usually 5 days.
3.What payment methods are accepted for LTC3410ESC6-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3410ESC6-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3410ESC6-1.8?
LTC3410ESC6-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3410ESC6-1.8 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 LTC3410ESC6-1.8?
For technical support, including LTC3410ESC6-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3410ESC6-1.8 requirements.
6.How does Aetrix verify that LTC3410ESC6-1.8 is sourced from the original manufacturer or authorized distributors?
All LTC3410ESC6-1.8 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 LTC3410ESC6-1.8 meets industry standards.
7.What is the process for return or replacement of LTC3410ESC6-1.8?
All LTC3410ESC6-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with LTC3410ESC6-1.8, 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 LTC3410ESC6-1.8 part is unused and in its original packaging.
Return procedure for LTC3410ESC6-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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