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Analog Devices Inc. LTC3410BESC6#TRMPBF
- Part No.:
- LTC3410BESC6#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
LTC3410BESC6#TRMPBF.pdf
- Description:
- IC REG BUCK ADJ 300MA SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:990
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Product details
Overview
LTC3410BESC6#TRMPBF from Analog Devices (formerly Linear Technology) is a high-efficiency monolithic synchronous step-down DC/DC regulator in SC70-6 package, featuring 2.25MHz fixed switching frequency, 300mA output current capability at 3V input, and 0.8V internal reference enabling adjustable output voltages down to 0.8V. It operates across 2.5V–5.5V input range and supports 100% duty cycle for low-dropout operation in single Li-Ion battery-powered portable electronics.
For engineers reviewing the LTC3410BESC6#TRMPBF datasheet, LTC3410BESC6#TRMPBF pinout, LTC3410BESC6#TRMPBF application, or LTC3410BESC6#TRMPBF equivalent, key selection criteria include its constant-frequency current-mode control architecture, ceramic-capacitor compatibility, <1µA shutdown current, ±2% output voltage accuracy, and thermal protection - all critical for compact, battery-sensitive power designs.
Technical Context
The LTC3410BESC6#TRMPBF implements a constant-frequency (2.25MHz), current-mode synchronous buck topology with integrated P-channel main switch (RDS(ON) = 0.75Ω typ) and N-channel synchronous rectifier (RDS(ON) = 0.55Ω typ). Its error amplifier compares feedback voltage against a precise 0.8V reference, while slope compensation prevents subharmonic oscillation above 40% duty cycle.
Pulse-skipping mode maintains regulation at light loads without burst-mode operation; short-circuit protection reduces oscillator frequency to ~310kHz; and overtemperature protection disables both switches when junction temperature exceeds ~150°C. The RUN pin enables/disables the device with 0.3V/1.5V thresholds and <1µA shutdown supply current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 5.5V - supports single-cell Li-Ion (2.7V–4.2V) with margin for termination and dropout |
| Output Current | 300mA continuous - sufficient for core logic, RF transceivers, and sensor subsystems in portable devices |
| Switching Frequency | 2.25MHz (typ) - enables use of small 2.2–4.7µH inductors and 2.2µF ceramic capacitors for minimal PCB footprint |
| Feedback Reference | 0.8V ±2% - allows precise programmable outputs from 0.8V to 5.5V using external resistor divider |
| Efficiency | Up to 96% - achieved via synchronous rectification eliminating Schottky loss and low RDS(ON) FETs |
| Shutdown Current | <1µA - extends battery life during system sleep or standby modes |
| Operating Temp | –40°C to +85°C - qualified for industrial and consumer portable equipment environments |
Pinout & Package
Package: SC70-6 (SC6), 6-lead plastic surface-mount package, 2.0mm × 1.25mm × 0.9mm profile, JEDEC MO-203AA compliant.
| 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 quiescent draw |
| GND (Pins 2, 5) | Power and signal ground | Dual ground pins reduce impedance path for high-frequency return currents and improve thermal dissipation |
| SW (Pin 3) | Switch node | Connects to inductor; carries high di/dt square-wave current; requires tight layout to minimize EMI and ringing |
| VIN (Pin 4) | Main input supply | Accepts 2.5V–5.5V; must be decoupled locally with ≥2.2µF ceramic capacitor to suppress switching noise |
| VFB (Pin 6) | Feedback input | Monitors resistive divider output; regulates VOUT by comparing to 0.8V reference; supports remote sensing |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Eliminates external Schottky diode, improving efficiency by ~5–10% and reducing thermal load in SC70 package |
| Ceramic capacitor stability | No ESR dependency for loop stability - enables ultra-low-noise, space-constrained designs with 2.2µF X5R/X7R ceramics |
| 100% duty cycle operation | Maintains regulation down to VIN ≈ VOUT, extending usable battery voltage range and runtime in portable systems |
| Current-mode control | Provides inherent cycle-by-cycle current limiting and fast transient response to load steps up to 300mA |
| Integrated thermal protection | Disables switches at ~150°C junction temperature - prevents permanent damage during sustained overload or poor heatsinking |
Applications
| Cellular Telephones | Digital Still Cameras |
|---|---|
Use Scenario: Powering baseband processor core voltage (1.2V–1.8V) from single Li-Ion cell during active call or data transmission. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering regulated, low-noise DC supply with fast load-step response. Use Value: 96% peak efficiency and 100% duty cycle extend talk time; 2.25MHz switching avoids AM radio band interference. | Use Scenario: Supplying image sensor analog front-end (1.8V) and memory interface (2.5V) during burst capture mode. IC Role / Device Role / Timing Role: High-frequency step-down converter providing stable, low-ripple bias under dynamic current demand. Use Value: Ceramic-compatible design ensures <10mVpp output ripple; pulse-skipping maintains regulation at standby currents as low as 2mA. |
| Wireless Modems | Portable Instruments |
Use Scenario: Generating 3.3V rail for Wi-Fi/BT SoC and RF PA bias in compact USB-powered modems. IC Role / Device Role / Timing Role: Compact, high-efficiency DC/DC converter enabling full functionality within strict size and thermal constraints. Use Value: SC70-6 footprint (2.0mm × 1.25mm) saves >50% board area vs SOIC-8 alternatives; <1µA shutdown minimizes battery drain in idle state. | Use Scenario: Providing precision 1.5V or 1.875V supply to ADC/DAC reference circuits and microcontroller cores in handheld test equipment. IC Role / Device Role / Timing Role: Low-drift, high-accuracy voltage regulator supporting metrology-grade signal chain performance. Use Value: ±2% output accuracy and 0.4%/V line regulation ensure stable reference under varying battery voltage; low noise preserves SNR. |
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 | 2.25MHz fixed frequency, 300mA, 0.6V ref, but uses external compensation and lacks 100% duty cycle | Requires additional compensation components; less suitable for deep dropout Li-Ion applications | Prefer LTC3410BESC6#TRMPBF when 100% duty cycle or simpler layout is required |
| MAX17222ELT+T | 1.2MHz, 500mA, 0.6V ref, integrated soft-start, but higher quiescent current (2.5µA) | Better for higher-current loads; less efficient at light loads due to higher IQ | Choose LTC3410BESC6#TRMPBF for ultra-low IQ (<1µA) and higher switching frequency in space-constrained designs |
Compared with TPS62231DRVR and MAX17222ELT+T, the LTC3410BESC6#TRMPBF offers superior dropout behavior (100% duty cycle), lower shutdown current, and tighter output voltage accuracy - making it optimal for long-runtime, battery-critical portable systems where board area and thermal headroom are limited.
Availability
LTC3410BESC6#TRMPBF is available at Aetrix Electronics and suitable for cellular telephones, digital still cameras, wireless modems, and portable instruments requiring stable component supply with consistent lead times and full traceability.
Supply support for LTC3410BESC6#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. (including legacy Linear Technology products) is a global leader in high-performance analog, mixed-signal, and power management ICs, serving industrial, automotive, communications, and consumer markets.
The LTC3410B series was designed specifically for compact, high-efficiency power conversion in battery-powered portable electronics - emphasizing low quiescent current, ceramic-capacitor compatibility, and robust thermal protection in miniature packages.
FAQ
What is the maximum output current capability of the LTC3410BESC6#TRMPBF?
The LTC3410BESC6#TRMPBF delivers up to 300mA continuous output current at VIN = 3V, with minimum peak switch current rated at 380mA. Actual achievable current depends on input voltage, output voltage, ambient temperature, and PCB thermal design - e.g., at VIN = 2.7V and VOUT = 1.2V, thermal limits may reduce practical current to ~250mA in standard SC70 layout.
Does the LTC3410BESC6#TRMPBF require an external Schottky diode?
No, the LTC3410BESC6#TRMPBF does not require an external Schottky diode. It integrates both a P-channel main switch and an N-channel synchronous rectifier, enabling full synchronous rectification that eliminates conduction losses and heat generation associated with external diodes.
What is the function of the RUN pin on the LTC3410BESC6#TRMPBF?
The RUN pin on the LTC3410BESC6#TRMPBF controls device enable/disable state: pulling RUN above 1.5V enables regulation, while pulling it below 0.3V places the LTC3410BESC6#TRMPBF in shutdown mode drawing <1µA supply current. The pin must not be left floating and should be tied to VIN or a system enable signal via appropriate logic.
Can the LTC3410BESC6#TRMPBF operate with ceramic output capacitors?
Yes, the LTC3410BESC6#TRMPBF is explicitly designed to be stable with ceramic output capacitors - including low-ESR X5R and X7R types - without requiring series resistance for loop compensation. This enables low-output-ripple, small-footprint designs, as confirmed in the datasheet's "Stable with Ceramic Capacitors" feature and Application Information section.
What is the switching frequency of the LTC3410BESC6#TRMPBF and is it adjustable?
The LTC3410BESC6#TRMPBF operates at a fixed internal switching frequency of 2.25MHz (typical), with guaranteed range of 1.8MHz to 2.7MHz across temperature and supply voltage. The frequency is not user-adjustable - it is set by internal oscillator circuitry and optimized for minimal external component size in portable applications.
LTC3410BESC6#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:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 5.5V
- 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
LTC3410BESC6#TRMPBF FAQ
1.How can I place an order for LTC3410BESC6#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3410BESC6#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 LTC3410BESC6#TRMPBF reliable?
The price and inventory of LTC3410BESC6#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3410BESC6#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC3410BESC6#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3410BESC6#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3410BESC6#TRMPBF?
LTC3410BESC6#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3410BESC6#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 LTC3410BESC6#TRMPBF?
For technical support, including LTC3410BESC6#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3410BESC6#TRMPBF requirements.
6.How does Aetrix verify that LTC3410BESC6#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC3410BESC6#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 LTC3410BESC6#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC3410BESC6#TRMPBF?
All LTC3410BESC6#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3410BESC6#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 LTC3410BESC6#TRMPBF part is unused and in its original packaging.
Return procedure for LTC3410BESC6#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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