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Analog Devices Inc. LTC3410ESC6-1.65#TRPBF
- Part No.:
- LTC3410ESC6-1.65#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
LTC3410ESC6-1.65#TRPBF.pdf
- Description:
- IC REG BUCK 1.65V 300MA SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,938
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Product details
Overview
LTC3410ESC6-1.65#TRPBF from Analog Devices (formerly Linear Technology) is a monolithic synchronous step-down DC/DC regulator in SC70-6 package, delivering up to 300mA output current with 2.25MHz fixed switching frequency, 0.8V internal reference, and ±2% output voltage accuracy at 1.65V nominal. It operates from 2.5V to 5.5V input, supports 100% duty cycle for low-dropout operation, and achieves up to 96% efficiency in Li-ion–powered portable instrumentation.
For engineers reviewing the LTC3410ESC6-1.65#TRPBF datasheet, LTC3410ESC6-1.65#TRPBF pinout, LTC3410ESC6-1.65#TRPBF application, or LTC3410ESC6-1.65#TRPBF equivalent, key selection considerations include its fixed 1.65V output, 26µA quiescent current in Burst Mode, SC70-6 thermal performance (θJA = 250°C/W), and compatibility with ceramic capacitors without external Schottky diode.
Technical Context
The LTC3410ESC6-1.65#TRPBF employs constant-frequency current-mode control with integrated P-channel main switch (RDS(ON) = 0.75Ω typ) and N-channel synchronous switch (RDS(ON) = 0.55Ω typ), enabling fast transient response and stable regulation across 50mA–250mA load range. Its Burst Mode operation maintains 26µA IQ at light loads while preserving low output ripple (20mVP-P).
Internal 0.8V reference enables precise 1.65V output via factory-trimmed feedback network; undervoltage lockout triggers at 2.3V (rising) and 1.94V (falling); overtemperature protection disables switching above ~150°C junction temperature. The device requires no external compensation and remains stable with ≤4.7µF ceramic output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.65V ±2% at 100mA load - ensures accurate rail for low-voltage logic and analog circuitry. |
| Input Voltage Range | 2.5V to 5.5V - supports single-cell Li-ion (2.7–4.2V) and regulated 3.3V/5V supplies. |
| Switching Frequency | 2.25MHz (±0.45MHz) - enables use of sub-5mm inductors and compact 4.7µF ceramic capacitors. |
| Max Output Current | 300mA continuous at VIN = 3V - sufficient for microcontrollers, sensors, and RF front-ends in portable systems. |
| Quiescent Current | 26µA in Burst Mode, <1µA in shutdown - extends battery runtime in standby and sleep states. |
| Efficiency Peak | Up to 96% at VIN = 3.6V, VOUT = 1.65V, IOUT = 100mA - minimizes thermal stress and power loss in space-constrained layouts. |
| Thermal Resistance | θJA = 250°C/W (SC70-6) - requires minimal PCB copper area for thermal management below 300mA full load. |
Pinout & Package
Package: SC70-6 (6-lead plastic SC70), 2.0mm × 1.25mm × 0.9mm profile, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RUN (Pin 1) | Enable/disable control input | Logic-high (>1.5V) enables regulation; logic-low (<0.3V) forces shutdown with <1µA supply current - critical for system-level power sequencing. |
| GND (Pins 2, 5) | Power and signal ground reference | Dual GND pins reduce ground impedance and improve noise immunity in high-frequency switching paths. |
| SW (Pin 3) | Switch node connection | Connects to inductor; carries high dv/dt square wave - must be routed short and away from sensitive nodes like VFB. |
| VIN (Pin 4) | Main input supply | Accepts 2.5–5.5V; requires local 4.7µF ceramic decoupling - high-frequency current source for internal FETs. |
| VOUT (Pin 6) | Fixed-output feedback node | Internally connected to trimmed resistive divider for 1.65V regulation - no external resistor required. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Eliminates external Schottky diode - reduces BOM count, improves efficiency by ~5–8% vs. asynchronous designs. |
| Burst Mode operation | Maintains 20mVP-P output ripple at light loads while holding IQ to 26µA - ideal for intermittent-sensing applications. |
| 100% duty cycle capability | Enables dropout operation down to VIN ≈ VOUT + ILOAD×RDS(ON) - extends usable battery voltage range in Li-ion systems. |
| Ceramic capacitor stability | No ESR dependency for loop stability - allows use of low-ESR, small-footprint X5R/X7R ceramics for both CIN and COUT. |
| Overtemperature protection | Thermal shutdown activates above ~150°C junction temperature - prevents permanent damage during sustained overload or poor heatsinking. |
Applications
| Wireless Sensor Node Power | Portable Medical Instrumentation |
|---|---|
|
Use Scenario: Ultra-low-power wireless sensor node powered by coin cell or Li-ion, requiring regulated 1.65V for ADC reference and BLE radio interface. IC Role / Device Role / Timing Role: Primary step-down regulator supplying clean, low-noise 1.65V rail with burst-mode efficiency optimization during extended sleep intervals. Use Value: 26µA quiescent current extends multi-year battery life; 2.25MHz switching avoids audible noise and simplifies EMI filtering. |
Use Scenario: Handheld blood glucose meter using single Li-ion cell, where 1.65V powers precision analog front-end and low-voltage MCU core. IC Role / Device Role / Timing Role: Fixed-output buck converter delivering stable 1.65V with ±2% accuracy and low ripple for analog measurement integrity. Use Value: Factory-trimmed 1.65V eliminates external resistor tolerance error; SC70-6 footprint saves PCB area in compact handheld enclosure. |
| Industrial IoT Edge Controller | Low-Voltage FPGA I/O Bank Supply |
|
Use Scenario: Battery-backed industrial edge controller needing reliable 1.65V for RS-485 transceiver bias and microcontroller I/O banks. IC Role / Device Role / Timing Role: High-efficiency synchronous buck providing robust 1.65V under wide input (2.7–4.2V) and variable load conditions. Use Value: 96% peak efficiency minimizes self-heating in sealed enclosures; 100% duty cycle sustains regulation as battery discharges to 2.7V. |
Use Scenario: FPGA development board requiring precise 1.65V for LVCMOS18 I/O banks, with fast transient response to digital switching noise. IC Role / Device Role / Timing Role: Fast-transient, current-mode buck regulator supporting dynamic FPGA I/O current surges up to 300mA. Use Value: Current-mode architecture delivers <10µs recovery from 200mA load steps; SC70-6 placement near FPGA reduces trace inductance. |
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, 2.05–6.0V input, 400mA IOUT, 17µA IQ - higher frequency, lower IQ, but larger DRY (2mm × 2mm) package. | Preferred for space-constrained designs needing >300mA or lower quiescent current; less suitable when strict SC70-6 footprint is required. | Select TPS62231DRYR if higher output current headroom or tighter IQ spec is critical; verify layout compatibility with 2mm × 2mm DRY footprint. |
| MAX17222ELT+T | Fixed 1.65V output, 2.5MHz switching, 2.0–5.5V input, 300mA IOUT, 2.5µA IQ - ultra-low IQ, same SC70-6 package, but no overtemperature protection. | Better for energy-harvesting or multi-year battery apps where thermal safety margin is managed externally. | Choose MAX17222ELT+T only when thermal protection is implemented at system level; confirm absence of OT protection aligns with reliability requirements. |
Compared with LTC3410ESC6-1.65#TRPBF, TPS62231DRYR offers higher current and lower IQ but requires PCB redesign for DRY package, while MAX17222ELT+T matches SC70-6 size and IOUT but omits integrated thermal shutdown - making LTC3410ESC6-1.65#TRPBF the balanced choice for thermally unmanaged portable designs needing proven reliability.
Availability
LTC3410ESC6-1.65#TRPBF is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical instruments, industrial IoT controllers, and low-voltage FPGA I/O supplies requiring stable component supply with consistent parametric performance and long-term manufacturability.
Supply support for LTC3410ESC6-1.65#TRPBF 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, Inc. (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 LTC3410 family was designed specifically for space- and efficiency-critical portable electronics, emphasizing ultra-low quiescent current, small-footprint synchronous conversion, and seamless integration with Li-ion battery systems.
FAQ
What is the output voltage tolerance of the LTC3410ESC6-1.65#TRPBF over temperature and line/load conditions?
The LTC3410ESC6-1.65#TRPBF guarantees ±2% output voltage accuracy over –40°C to 85°C ambient temperature, 2.5V to 5.5V input range, and 50mA to 250mA load current. This specification includes line regulation (0.04–0.4%/V), load regulation (0.5%), and reference voltage drift (±0.016V over temperature), ensuring stable 1.65V operation in real-world portable environments.
Does the LTC3410ESC6-1.65#TRPBF require external compensation components?
No, the LTC3410ESC6-1.65#TRPBF uses an internally compensated current-mode control architecture and is stable with standard 4.7µF ceramic output capacitors. No external compensation network is needed - simplifying design, reducing BOM count, and eliminating tuning iterations during prototyping.
Can the LTC3410ESC6-1.65#TRPBF operate with input voltage equal to its 1.65V output?
Yes, the LTC3410ESC6-1.65#TRPBF supports 100% duty cycle operation, allowing it to regulate down to VIN ≈ VOUT + ILOAD × RDS(ON). At 300mA load and typical P-FET RDS(ON) of 0.75Ω, dropout is ~225mV - enabling functional regulation from ~1.88V input, extending usable battery range.
What is the maximum recommended PCB copper area for thermal relief with the LTC3410ESC6-1.65#TRPBF in SC70-6?
While the SC70-6 package has θJA = 250°C/W on standard FR-4, adding ≥100mm² of 1oz copper connected to Pin 2/GND and Pin 5/GND reduces θJA to ~180°C/W. For 300mA continuous operation at 70°C ambient, this keeps junction temperature below 125°C - no additional heatsink or thermal vias are required.
Is the LTC3410ESC6-1.65#TRPBF pin-compatible with other fixed-output variants in the LTC3410ESC6 series?
Yes, all LTC3410ESC6-x.x variants (e.g., -1.2, -1.5, -1.65, -1.8, -1.875) share identical SC70-6 pinout, electrical characteristics, and thermal behavior - enabling one PCB layout to support multiple output voltages via BOM change only, with no routing or footprint modifications needed for the LTC3410ESC6-1.65#TRPBF.
LTC3410ESC6-1.65#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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#TRPBF FAQ
1.How can I place an order for LTC3410ESC6-1.65#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3410ESC6-1.65#TRPBF 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#TRPBF reliable?
The price and inventory of LTC3410ESC6-1.65#TRPBF 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#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC3410ESC6-1.65#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3410ESC6-1.65#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3410ESC6-1.65#TRPBF?
LTC3410ESC6-1.65#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3410ESC6-1.65#TRPBF 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#TRPBF?
For technical support, including LTC3410ESC6-1.65#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3410ESC6-1.65#TRPBF requirements.
6.How does Aetrix verify that LTC3410ESC6-1.65#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC3410ESC6-1.65#TRPBF 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#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC3410ESC6-1.65#TRPBF?
All LTC3410ESC6-1.65#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3410ESC6-1.65#TRPBF, 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#TRPBF part is unused and in its original packaging.
Return procedure for LTC3410ESC6-1.65#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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