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Analog Devices Inc. LTC3410ESC6#TRMPBF
- Part No.:
- LTC3410ESC6#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
LTC3410ESC6#TRMPBF.pdf
- Description:
- IC REG BUCK ADJ 300MA SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,286
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Product details
Overview
LTC3410ESC6#TRMPBF from Analog Devices (formerly Linear Technology) is a high-efficiency, 2.25MHz synchronous step-down DC/DC regulator in SC70-6 package, delivering up to 300mA output current with ±2% voltage accuracy and 96% peak efficiency. It operates from 2.5V to 5.5V input, supports adjustable or fixed outputs via internal 0.8V reference, and features Burst Mode operation for 26µA quiescent current-ideal for Li-ion–powered portable instrumentation.
For engineers reviewing the LTC3410ESC6#TRMPBF datasheet, LTC3410ESC6#TRMPBF pinout, LTC3410ESC6#TRMPBF application, or LTC3410ESC6#TRMPBF equivalent, key selection criteria include its 2.25MHz constant-frequency current-mode control, 100% duty-cycle dropout capability, ceramic-capacitor compatibility, and thermal performance in SC70 under 300mA load at 85°C ambient.
Technical Context
The LTC3410ESC6#TRMPBF employs a constant-frequency, current-mode architecture with integrated P-channel main switch (RDS(ON) = 0.75Ω typ) and N-channel synchronous switch (RDS(ON) = 0.55Ω typ), enabling stable regulation without external diode. Its oscillator is fixed at 2.25MHz (1.8–2.7MHz range), supporting compact 2.2–4.7µH inductors and ceramic input/output capacitors.
Burst Mode operation activates below ~100mA load, reducing quiescent current to 26µA while maintaining low output ripple (20mVP-P). Overtemperature protection disables both switches above ~150°C junction temperature, and undervoltage lockout engages below 1.94V (falling) or 2.3V (rising).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 5.5V - supports single-cell Li-ion (2.7–4.2V) with margin for transient spikes. |
| Output Current | 300mA continuous - sufficient for core logic rails in portable devices like modems and digital cameras. |
| Switching Frequency | 2.25MHz (typ) - enables use of sub-5mm inductors and minimizes board area. |
| Efficiency | Up to 96% - reduces thermal load and extends battery runtime in standby and active modes. |
| Quiescent Current | 26µA in Burst Mode - maintains ultra-low power draw during light-load sleep states. |
| Feedback Reference | 0.8V ±2% - allows precise low-output-voltage regulation (e.g., 1.2V, 1.5V, 1.8V) using standard resistor ratios. |
| Duty Cycle | 100% - sustains regulation down to VIN ≈ VOUT, critical for end-of-battery-life operation. |
Pinout & Package
Package: SC70-6 (6-lead plastic SC70), 2.0mm × 1.25mm × 0.9mm profile, θJA = 250°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RUN (Pin 1) | Enable control input | Logic-high (>1.5V) enables regulation; <0.3V forces shutdown (<1µA IQ); must not float. |
| GND (Pins 2, 5) | Power and signal ground | Dual ground pins reduce PCB trace inductance and improve thermal dissipation. |
| SW (Pin 3) | Switch node | Connects to inductor; carries high di/dt square-wave current-requires short, wide routing. |
| VIN (Pin 4) | Main input supply | Accepts 2.5–5.5V; requires local 4.7µF ceramic decoupling to GND (Pin 2). |
| VFB (Pin 6) | Feedback input | Monitors resistive divider output; sets regulated voltage as VOUT = 0.8V × (1 + R1/R2). |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Eliminates external Schottky diode, improving efficiency by ~5–10% over asynchronous designs at 300mA. |
| Ceramic capacitor stability | No ESR dependency in control loop-enables low-ripple, small-footprint designs with X5R/X7R MLCCs. |
| Burst Mode operation | Maintains 20mVP-P output ripple even at 10µA load, avoiding audible noise and preserving regulation. |
| Low dropout (100% duty cycle) | Extends usable battery life by regulating down to VIN – ILOAD×RDS(ON), critical for Li-ion discharge curve. |
| Overtemperature protection | Thermal shutdown at ~150°C junction temperature prevents permanent damage during sustained overload. |
Applications
| Cellular Telephones | Wireless Modems |
|---|---|
Use Scenario: Powering baseband processor core rail from single Li-ion cell (2.7–4.2V). IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering 1.2V/300mA with fast load transient response. Use Value: 96% efficiency at 100mA and 26µA IQ in Burst Mode extend talk time and standby duration. | Use Scenario: Supplying RF transceiver analog and digital sections in 802.11b/g/n client devices. IC Role / Device Role / Timing Role: Low-noise, high-PSRR step-down converter with minimal EMI due to 2.25MHz fixed frequency. Use Value: Ceramic-capacitor compatibility and 20mVP-P ripple prevent RF desense and data corruption. |
| Digital Cameras | Portable Instruments |
Use Scenario: Generating image sensor analog supply (2.8V) and memory interface rail (1.8V) from shared battery. IC Role / Device Role / Timing Role: Dual-rail support via fixed-output variants (e.g., LTC3410ESC6-1.8) or adjustable configuration. Use Value: ±2% output accuracy ensures consistent ADC reference and sensor biasing across temperature. | Use Scenario: Powering microcontroller, display driver, and precision ADC in handheld test equipment. IC Role / Device Role / Timing Role: Main system regulator with tight line/load regulation (0.4%/V, 0.5%) and low thermal resistance. Use Value: SC70 package enables compact layout; 125°C TJMAX rating supports industrial ambient (–40°C to 85°C). |
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, 300mA, 0.6V ref, 2.05–6.5V input, 17µA IQ in PWM mode only | Lower IQ in forced-PWM but no Burst Mode; less accurate ref (±1.5%) | Prefer for noise-sensitive systems requiring constant frequency; avoid where ultra-low IQ at light load is critical. |
| RT8059GJ6 | 1.5MHz, 600mA, 0.6V ref, 2.5–5.5V input, 22µA IQ in skip mode | Higher current rating but lower switching frequency increases inductor size; no 100% duty cycle | Prefer when >300mA peak load is needed; avoid in space-constrained Li-ion apps requiring smallest inductor. |
Compared with TPS62231DRVR and RT8059GJ6, the LTC3410ESC6#TRMPBF uniquely combines 2.25MHz operation, true Burst Mode (26µA), 100% duty cycle, and 0.8V reference in SC70-making it optimal for miniaturized, battery-critical applications demanding both efficiency and regulation headroom.
Availability
LTC3410ESC6#TRMPBF is available at Aetrix Electronics and suitable for cellular telephones, wireless modems, digital cameras, and portable instruments requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for LTC3410ESC6#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 acquired Linear Technology in 2017 and maintains its legacy of high-performance power management ICs with rigorous characterization and application support.
The LTC3410 product line delivers compact, high-efficiency synchronous buck regulators optimized for single-cell Li-ion and low-voltage portable electronics-emphasizing low quiescent current, ceramic-capacitor compatibility, and robust thermal behavior in miniature packages.
FAQ
What is the maximum continuous output current of the LTC3410ESC6#TRMPBF?
The LTC3410ESC6#TRMPBF delivers up to 300mA continuous output current at VIN = 3V and ambient temperatures up to 85°C. Peak switch current is rated at 380mA minimum, and thermal limits (TJMAX = 125°C, θJA = 250°C/W) constrain higher currents in high-ambient or low-input-voltage conditions. Derating is required above 70°C ambient per thermal analysis.
Does the LTC3410ESC6#TRMPBF require an external Schottky diode?
No, the LTC3410ESC6#TRMPBF does not require an external Schottky diode. It integrates both a P-channel main switch and an N-channel synchronous rectifier, eliminating conduction losses and heat generation associated with external diodes. This design achieves up to 96% efficiency and simplifies bill-of-materials and layout.
What is the function of the RUN pin on the LTC3410ESC6#TRMPBF?
The RUN pin (Pin 1) controls enable/disable functionality of the LTC3410ESC6#TRMPBF. Driving RUN above 1.5V enables regulation; pulling it below 0.3V places the device in shutdown mode, drawing <1µA supply current. The pin must never be left floating-external pull-down or microcontroller GPIO is required for reliable sequencing.
Can the LTC3410ESC6#TRMPBF operate with ceramic output capacitors?
Yes, the LTC3410ESC6#TRMPBF is explicitly designed for stable operation with ceramic output capacitors. Its current-mode control loop does not rely on capacitor ESR for stability, enabling use of low-ESR X5R/X7R MLCCs (e.g., 4.7µF) to achieve low output ripple (20mVP-P) and minimal PCB footprint-unlike many older buck controllers requiring tantalum or electrolytic caps.
What is the purpose of the 0.8V feedback reference voltage in the LTC3410ESC6#TRMPBF?
The 0.8V internal reference voltage in the LTC3410ESC6#TRMPBF sets the regulation point for the feedback loop. Output voltage is configured as VOUT = 0.8V × (1 + R1/R2), enabling precise, low-voltage rails (e.g., 1.2V, 1.5V, 1.8V) using standard resistor values. This reference has ±2% accuracy over temperature and contributes to tight load regulation (0.5%) and line regulation (0.4%/V).
LTC3410ESC6#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
LTC3410ESC6#TRMPBF FAQ
1.How can I place an order for LTC3410ESC6#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3410ESC6#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#TRMPBF reliable?
The price and inventory of LTC3410ESC6#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#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC3410ESC6#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3410ESC6#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3410ESC6#TRMPBF?
LTC3410ESC6#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3410ESC6#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#TRMPBF?
For technical support, including LTC3410ESC6#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3410ESC6#TRMPBF requirements.
6.How does Aetrix verify that LTC3410ESC6#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC3410ESC6#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#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC3410ESC6#TRMPBF?
All LTC3410ESC6#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3410ESC6#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#TRMPBF part is unused and in its original packaging.
Return procedure for LTC3410ESC6#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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