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Analog Devices Inc. LTC3410ESC6-1.5#TRMPBF
- Part No.:
- LTC3410ESC6-1.5#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
LTC3410ESC6-1.5#TRMPBF.pdf
- Description:
- IC REG BUCK 1.5V 300MA SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,404
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Product details
Overview
LTC3410ESC6-1.5#TRMPBF from Analog Devices (formerly Linear Technology) is a monolithic synchronous step-down DC/DC regulator optimized for single Li-Ion battery-powered systems. It delivers up to 300mA output current with ±2% output voltage accuracy at 1.5V, operates from 2.5V to 5.5V input, achieves up to 96% efficiency, and uses a fixed 2.25MHz switching frequency to enable compact 4.7µH inductor and ceramic capacitor designs.
For engineers reviewing the LTC3410ESC6-1.5#TRMPBF datasheet, LTC3410ESC6-1.5#TRMPBF pinout, LTC3410ESC6-1.5#TRMPBF application, or LTC3410ESC6-1.5#TRMPBF equivalent, key selection criteria include its SC70-6 package footprint, 1.5V fixed output, 26µA quiescent current in Burst Mode, 100% duty-cycle low-dropout capability, and compatibility with ceramic output capacitors without external Schottky diodes.
Technical Context
The LTC3410ESC6-1.5#TRMPBF implements a constant-frequency, current-mode synchronous buck architecture with integrated P-channel main and N-channel synchronous switches. Its control loop uses an internal 0.8V reference and error amplifier to regulate output via feedback from a fixed internal resistive divider - no external resistor network required for the 1.5V version.
Burst Mode operation reduces quiescent current to 26µA at light loads by intermittently enabling switching cycles, while overtemperature protection disables both switches above ~150°C. The device supports 100% duty cycle for ultra-low dropout and features slope compensation to prevent subharmonic oscillation at high duty cycles without reducing peak inductor current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±2% at 100mA load - enables direct replacement of LDOs in 1.5V rail applications without feedback resistor tuning. |
| Input Voltage Range | 2.5V to 5.5V - fully supports single-cell Li-ion (2.7–4.2V) and USB-powered systems with margin. |
| Max Output Current | 300mA continuous - sufficient for baseband processors, RF transceivers, and sensor subsystems in portable devices. |
| Switching Frequency | 2.25MHz (typ), 1.8–2.7MHz (min–max) - allows use of <5mm² total passive area with 4.7µH inductors and 4.7µF ceramic caps. |
| Quiescent Current | 26µA in Burst Mode, <1µA in shutdown - extends battery runtime in standby and sleep modes. |
| Efficiency Peak | Up to 96% at mid-load - minimizes thermal rise in sealed enclosures and preserves battery capacity. |
| Duty Cycle Limit | 100% - maintains regulation down to VIN = VOUT + ILOAD × RDS(ON), critical for end-of-battery-life operation. |
Pinout & Package
The LTC3410ESC6-1.5#TRMPBF is housed in a 6-lead plastic SC70 package (2.0mm × 1.25mm × 0.9mm height), optimized for space-constrained portable PCBs. Thermal resistance θJA is 250°C/W.
| 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 supply current - used for system-level power sequencing. |
| GND (Pins 2, 5) | Power and signal ground | Dual ground pins reduce ground impedance and improve EMI performance - must be connected to common low-impedance ground plane. |
| SW (Pin 3) | Switch node | Connects to inductor and internal P/N MOSFET drains - high di/dt node requiring short, wide trace routing away from sensitive analog nodes. |
| VIN (Pin 4) | Main input supply | Accepts 2.5–5.5V input; requires local 4.7µF ceramic decoupling capacitor placed adjacent to pin to suppress switching noise. |
| VOUT (Pin 6) | Fixed-output feedback | Internally connected to 1.5V divider - no external resistors needed; connects directly to output capacitor positive terminal for remote sensing. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Eliminates need for external Schottky diode - reduces BOM count, improves efficiency by 5–10% vs asynchronous designs. |
| Ceramic capacitor stability | Control loop independent of output capacitor ESR - enables use of low-ESR, low-profile X5R/X7R ceramics for <20mVP-P ripple. |
| Burst Mode operation | Maintains high light-load efficiency with 26µA IQ - avoids linear regulator inefficiency while preserving fast transient response. |
| Low-noise switching | 2.25MHz fixed frequency avoids AM radio band (0.53–1.71MHz) - simplifies EMI filtering and layout. |
| Thermal shutdown | Disables both switches above ~150°C junction temperature - protects IC and surrounding components during overload or poor heatsinking. |
Applications
| Cellular Telephones | Wireless Modems |
|---|---|
Use Scenario: Powering baseband processor core voltage rail in GSM/UMTS handsets operating from single Li-ion cell. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering stable 1.5V at up to 300mA with dynamic load response to burst transmission demands. Use Value: Extends talk time via 96% peak efficiency and 26µA Burst Mode IQ, while 100% duty cycle sustains regulation down to 2.7V battery voltage. | Use Scenario: Supplying 1.5V logic rail for Wi-Fi/Bluetooth combo modules in compact USB-powered modems. IC Role / Device Role / Timing Role: Fixed-output step-down converter interfacing directly with USB 5V input and ceramic output filter. Use Value: Enables full-size USB-C port integration without external feedback components or thermal derating - SC70 footprint fits <3mm² board area. |
| Digital Cameras | Portable Instruments |
Use Scenario: Generating 1.5V supply for image sensor interface ASICs during high-speed capture sequences. IC Role / Device Role / Timing Role: High-transient-response regulator handling rapid 0→300mA load steps with <100mV undershoot. Use Value: Prevents image corruption via fast line/load regulation and low-output-impedance ceramic support - no output capacitor ESR dependency. | Use Scenario: Powering microcontroller and analog front-end in handheld multimeters or gas detectors running on coin cells or Li-ion. IC Role / Device Role / Timing Role: Ultra-low-IQ buck converter supporting deep-sleep modes while maintaining regulated 1.5V for real-time clock and memory retention. Use Value: Achieves >1-year shelf life on CR2032 via <1µA shutdown current and eliminates need for separate LDO backup path. |
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 | 1.5V fixed output, 300mA, 3MHz switching, 17µA IQ - smaller 1.0mm × 1.0mm DSBGA but lower max input (5.5V same), no 100% duty cycle. | Requires tighter input regulation; less suitable for Li-ion discharge tail below 3.0V due to dropout limitation. | Prefer for ultra-small footprint where input stays >3.0V; avoid when end-of-life battery operation is required. |
| MAX1724EZT+T | 1.5V fixed output, 400mA, 1.5MHz, 22µA IQ - larger SOT23-6 package, higher RDS(ON), no thermal shutdown. | Higher conduction loss at 300mA; lacks overtemperature protection - requires external thermal monitoring. | Acceptable for cost-sensitive, non-safety-critical applications with adequate board-level heatsinking. |
Compared with TPS62231DRYR and MAX1724EZT+T, the LTC3410ESC6-1.5#TRMPBF uniquely combines 100% duty-cycle operation, integrated thermal protection, and SC70 packaging - making it the only option among the three that guarantees regulation down to 2.5V input while maintaining safety and minimal footprint.
Availability
LTC3410ESC6-1.5#TRMPBF is available at Aetrix Electronics and suitable for cellular telephones, wireless modems, digital cameras, and portable instruments requiring stable component supply across long-lifecycle consumer and industrial programs.
Supply support for LTC3410ESC6-1.5#TRMPBF 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.
The LTC3410 family was designed specifically for space- and efficiency-constrained portable electronics, emphasizing ultra-low IQ, small-footprint synchronous conversion, and seamless integration with Li-ion battery systems.
FAQ
What is the maximum continuous output current of the LTC3410ESC6-1.5#TRMPBF?
The LTC3410ESC6-1.5#TRMPBF delivers up to 300mA continuous output current at 1.5V when operating within its specified input range (2.5V–5.5V) and ambient temperature (–40°C to 85°C). This rating assumes proper thermal management using the SC70 package's exposed pad (if applicable) and recommended PCB copper area per Linear's layout guidelines.
Does the LTC3410ESC6-1.5#TRMPBF require external feedback resistors?
No. The LTC3410ESC6-1.5#TRMPBF is the fixed 1.5V output variant and contains an internal resistive divider connected to Pin 6 (VOUT). Unlike the adjustable LTC3410 versions, it requires no external resistors - simplifying design and reducing component count for dedicated 1.5V rails.
What is the purpose of the RUN pin on the LTC3410ESC6-1.5#TRMPBF?
The RUN pin (Pin 1) controls device enable/disable functionality. Driving RUN above 1.5V enables regulation; pulling it below 0.3V places the LTC3410ESC6-1.5#TRMPBF into shutdown mode, reducing supply current to <1µA. Leaving RUN floating is prohibited - it must be actively driven or pulled to GND/VIN via a resistor.
Can the LTC3410ESC6-1.5#TRMPBF operate with input voltage equal to output voltage?
Yes. The LTC3410ESC6-1.5#TRMPBF supports 100% duty cycle operation, allowing it to maintain regulation even when VIN drops to VOUT + (ILOAD × RDS(ON)). At 300mA and typical RDS(ON) of 0.75Ω, this enables functional operation down to ~1.73V input - critical for extending runtime in Li-ion battery discharge profiles.
Is the LTC3410ESC6-1.5#TRMPBF compatible with ceramic output capacitors?
Yes. The LTC3410ESC6-1.5#TRMPBF is explicitly designed for stable operation with ceramic output capacitors - including X5R and X7R dielectrics - without requiring ESR for loop compensation. This enables low-output-ripple designs (<20mVP-P) and minimal PCB area using standard 4.7µF/0805 or 0603 ceramics.
LTC3410ESC6-1.5#TRMPBF 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):
- 1.5V
- 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
LTC3410ESC6-1.5#TRMPBF FAQ
1.How can I place an order for LTC3410ESC6-1.5#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3410ESC6-1.5#TRMPBF 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 LTC3410ESC6-1.5#TRMPBF reliable?
The price and inventory of LTC3410ESC6-1.5#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3410ESC6-1.5#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC3410ESC6-1.5#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3410ESC6-1.5#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3410ESC6-1.5#TRMPBF?
LTC3410ESC6-1.5#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3410ESC6-1.5#TRMPBF 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 LTC3410ESC6-1.5#TRMPBF?
For technical support, including LTC3410ESC6-1.5#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3410ESC6-1.5#TRMPBF requirements.
6.How does Aetrix verify that LTC3410ESC6-1.5#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC3410ESC6-1.5#TRMPBF 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 LTC3410ESC6-1.5#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC3410ESC6-1.5#TRMPBF?
All LTC3410ESC6-1.5#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3410ESC6-1.5#TRMPBF, 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 LTC3410ESC6-1.5#TRMPBF part is unused and in its original packaging.
Return procedure for LTC3410ESC6-1.5#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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