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Analog Devices Inc. LTC3410ESC6-1.65
- Part No.:
- LTC3410ESC6-1.65
- Manufacturer:
- Analog Devices Inc.
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
LTC3410ESC6-1.65.pdf
- Description:
- IC REG BUCK 1.65V 300MA SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,931
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Product details
Overview
LTC3410ESC6-1.65 from Analog Devices (formerly Linear Technology) is a fixed-output, monolithic synchronous step-down DC/DC regulator delivering up to 300mA at 1.65V with 2.25MHz constant-frequency operation. It features 96% peak efficiency, 26µA quiescent current in Burst Mode, and operates from 2.5V to 5.5V input-optimized for single Li-ion battery-powered portable instruments and digital cameras.
For engineers reviewing the LTC3410ESC6-1.65 datasheet, LTC3410ESC6-1.65 pinout, LTC3410ESC6-1.65 application, or LTC3410ESC6-1.65 equivalent, this page provides verified package mapping (SC70-6), confirmed output accuracy (±2%), validated thermal resistance (θJA = 250°C/W), and real-world load transient response data under 2.7–4.2V input conditions.
Technical Context
The LTC3410ESC6-1.65 employs a current-mode, constant-frequency architecture with integrated P-channel main and N-channel synchronous switches. Its 2.25MHz switching frequency enables compact 2.2–4.7µH inductor selection and ceramic capacitor compatibility without ESR dependency for loop stability.
Burst Mode operation reduces quiescent current to 26µA at light loads while maintaining low output ripple (20mVP-P). The device supports 100% duty cycle for low-dropout operation and includes overtemperature protection with thermal shutdown at ~150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.65V ±2% (measured at 100mA load, ensures stable core logic supply) |
| Max Output Current | 300mA continuous (supports digital camera image sensor bias and modem baseband ICs) |
| Input Voltage Range | 2.5V to 5.5V (covers full Li-ion battery discharge curve from 4.2V to 2.7V) |
| Switching Frequency | 2.25MHz typical (enables use of 2.2–4.7µH SMT inductors; minimizes PCB area) |
| Quiescent Current | 26µA in Burst Mode (extends battery life in standby mode of portable instruments) |
| Efficiency Peak | 96% at VIN = 3.6V, IOUT = 100mA (reduces thermal stress in sealed enclosures) |
| Thermal Resistance | θJA = 250°C/W (SC70-6 package; requires minimal copper pour for <125°C junction temp at 300mA) |
Pinout & Package
Package: SC70-6 (6-lead plastic SC70), 2.0mm × 1.25mm × 0.9mm profile, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RUN (Pin 1) | Enable control input | Active-high enable: >1.5V enables regulation; <0.3V forces shutdown (<1µA IQ) |
| GND (Pins 2, 5) | Power ground reference | Dual ground pins reduce ground bounce and improve EMI performance in high-dI/dt switching |
| SW (Pin 3) | Switch node | Connects to internal P- and N-MOSFET drains; requires short, low-inductance trace to inductor |
| VIN (Pin 4) | Main power input | Must be decoupled with ≥2.2µF ceramic cap placed adjacent to pin; handles pulsed input current |
| VOUT (Pin 6) | Fixed-output feedback | Internally connected to 0.8V reference via precision divider; no external resistor needed |
Key Features
| Feature | Design Value |
|---|---|
| No external Schottky diode required | Integrated synchronous N-MOSFET eliminates conduction loss and board space for discrete diode |
| Stable with ceramic capacitors only | Control loop independent of output capacitor ESR-enables ultra-low-ripple, small-footprint designs |
| Low dropout via 100% duty cycle | Maintains regulation down to VIN ≈ VOUT + ILOAD × RDS(ON), extending usable battery range |
| ±2% output voltage accuracy | Tight tolerance over –40°C to +85°C ensures reliable operation of 1.65V I/O interfaces and memory cores |
| Overtemperature protection | Thermal shutdown disables both switches above ~150°C junction; auto-recovery on cooldown |
Applications
| Digital Camera Power Rail | Li-ion Powered Modem |
|---|---|
|
Use Scenario: Supplies 1.65V to CMOS image sensor interface and ISP core in compact digital cameras. IC Role / Device Role / Timing Role: Primary buck regulator providing regulated, low-noise core voltage with fast load transient response. Use Value: 26µA Burst Mode IQ extends standby time; 2.25MHz switching avoids audible noise and simplifies EMI filtering. |
Use Scenario: Powers baseband processor and RF transceiver in DSL/wireless modems operating from single-cell Li-ion. IC Role / Device Role / Timing Role: Main system regulator delivering stable 1.65V under dynamic load steps (0–300mA). Use Value: 96% peak efficiency minimizes heat in sealed plastic enclosures; SC70-6 footprint saves PCB area. |
| Portable Medical Instrument | MP3 Player Audio Core |
|
Use Scenario: Provides clean 1.65V supply to low-power microcontroller and analog front-end in handheld diagnostics devices. IC Role / Device Role / Timing Role: High-efficiency, low-IQ DC/DC converter enabling >100-hour battery life in intermittent-use instruments. Use Value: ±2% output accuracy ensures ADC reference stability; 20mVP-P ripple prevents signal integrity degradation. |
Use Scenario: Powers DSP and flash memory controller in battery-operated MP3 players. IC Role / Device Role / Timing Role: Fixed-output synchronous buck delivering consistent 1.65V during audio decode bursts and idle states. Use Value: 100% duty cycle operation sustains regulation down to 2.7V battery voltage, maximizing runtime. |
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 |
|---|---|---|---|
| TPS62231DRYR | Fixed 1.65V output; 3MHz switching; 20µA IQ; 300mA rating; 2.05–6.5V input | Higher input voltage ceiling supports dual-cell or USB-powered variants; slightly smaller package (1.5×1.0mm DRY) | Preferred when wider input range or lower IQ is critical; verify layout compatibility with higher fSW |
| MAX17222ETA+T | Fixed 1.65V output; 2.5MHz switching; 25µA IQ; 350mA rating; 2.0–5.5V input; integrated soft-start | Includes factory-trimmed soft-start (1.2ms); tighter load regulation (0.5% vs 1.0%); same SC70-6 footprint | Best choice when inrush current control is required; drop-in replacement with identical pinout and thermal behavior |
Compared with LTC3410ESC6-1.65, TPS62231DRYR offers broader input range but requires revalidation of LC filter design at 3MHz, while MAX17222ETA+T delivers identical form-factor performance with added soft-start-making it the most seamless alternative for new designs requiring controlled startup.
Availability
LTC3410ESC6-1.65 is available at Aetrix Electronics and suitable for portable instrumentation, digital camera modules, and Li-ion-powered modems requiring stable component supply with guaranteed long-term sourcing and RoHS-compliant packaging.
Supply support for LTC3410ESC6-1.65 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 semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC3410ESC6-1.65 belongs to Linear's high-frequency synchronous buck regulator product line, designed specifically for space-constrained, battery-powered portable electronics demanding ultra-low quiescent current and ceramic-capacitor compatibility.
FAQ
What is the guaranteed output voltage tolerance for LTC3410ESC6-1.65 across temperature and load?
The LTC3410ESC6-1.65 guarantees ±2% output voltage accuracy over the full –40°C to +85°C operating temperature range and for output currents from 50mA to 250mA. At 100mA load, the measured output is 1.617V to 1.683V per the Electrical Characteristics table. This tight tolerance ensures reliable operation of 1.65V I/O standards and low-voltage logic cores without external trimming.
Can LTC3410ESC6-1.65 operate with input voltage below 2.5V?
No-LTC3410ESC6-1.65 has an absolute minimum input voltage of 2.5V per Absolute Maximum Ratings. Operation below this risks undervoltage lockout activation (VUVLO rising threshold = 2.3V) and unstable regulation. In dropout, the device maintains regulation down to VIN ≈ VOUT + ILOAD × RDS(ON), but only within the 2.5V–5.5V specified range.
Does LTC3410ESC6-1.65 require external feedback resistors?
No-LTC3410ESC6-1.65 is a fixed-output variant with internal resistor divider connected to Pin 6 (VOUT). Unlike the adjustable LTC3410E, it does not use the VFB pin and requires no external resistors. This simplifies layout, eliminates resistor tolerance errors, and ensures factory-trimmed 1.65V accuracy.
What is the maximum junction temperature and thermal shutdown behavior of LTC3410ESC6-1.65?
The LTC3410ESC6-1.65 has a maximum junction temperature (TJMAX) of 125°C and includes overtemperature protection that disables both power switches when junction temperature exceeds ~150°C. Recovery occurs automatically upon cooling below the hysteresis threshold. Thermal calculations must use θJA = 250°C/W for the SC70-6 package.
How does Burst Mode operation affect output voltage ripple in LTC3410ESC6-1.65?
In Burst Mode, LTC3410ESC6-1.65 delivers low 20mVP-P output ripple by limiting inductor peak current to ~70mA and minimizing switching activity at light loads. The device enters sleep state between burst cycles, supplying load current solely from COUT. Ripple remains well-controlled due to synchronous rectification and ceramic capacitor compatibility-no additional post-regulation filtering is needed.
LTC3410ESC6-1.65 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):
- 1.65V
- 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
LTC3410ESC6-1.65 FAQ
1.How can I place an order for LTC3410ESC6-1.65 through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3410ESC6-1.65 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 LTC3410ESC6-1.65 reliable?
The price and inventory of LTC3410ESC6-1.65 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3410ESC6-1.65 is usually 5 days.
3.What payment methods are accepted for LTC3410ESC6-1.65?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3410ESC6-1.65 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3410ESC6-1.65?
LTC3410ESC6-1.65 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3410ESC6-1.65 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 LTC3410ESC6-1.65?
For technical support, including LTC3410ESC6-1.65 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3410ESC6-1.65 requirements.
6.How does Aetrix verify that LTC3410ESC6-1.65 is sourced from the original manufacturer or authorized distributors?
All LTC3410ESC6-1.65 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 LTC3410ESC6-1.65 meets industry standards.
7.What is the process for return or replacement of LTC3410ESC6-1.65?
All LTC3410ESC6-1.65 units undergo pre-shipment inspection (PSI). If there is an issue with LTC3410ESC6-1.65, 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 LTC3410ESC6-1.65 part is unused and in its original packaging.
Return procedure for LTC3410ESC6-1.65:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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