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Analog Devices Inc. LTC3410ESC6-1.875#TRPBF
- Part No.:
- LTC3410ESC6-1.875#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
LTC3410ESC6-1.875#TRPBF.pdf
- Description:
- IC REG BUCK 1.875V 300MA SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,175
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Product details
Overview
LTC3410ESC6-1.875 from Analog Devices (formerly Linear Technology) is a high-efficiency, constant-frequency synchronous step-down DC/DC regulator in SC70-6 package, delivering up to 300mA output at fixed 1.875V with 2.25MHz switching, 26µA quiescent current, and ±2% output voltage accuracy - optimized for single Li-ion battery-powered portable electronics.
For engineers reviewing the LTC3410ESC6-1.875 datasheet, LTC3410ESC6-1.875 pinout, LTC3410ESC6-1.875 application, or LTC3410ESC6-1.875 equivalent, key selection criteria include its ultra-low IQ in Burst Mode, ceramic-capacitor compatibility, 2.5V–5.5V input range, internal P/N-channel MOSFETs, and SC70 thermal performance under 300mA load.
Technical Context
The LTC3410ESC6-1.875 employs a current-mode, constant-frequency architecture with integrated P-channel main switch (RDS(ON) = 0.75Ω typ) and N-channel synchronous rectifier (RDS(ON) = 0.55Ω typ), enabling 93% peak efficiency and excellent transient response without external diode. Its 2.25MHz oscillator allows compact 2.2–4.7µH inductors and 4.7µF ceramic capacitors.
Burst Mode operation reduces supply current to 26µA at light loads while maintaining regulation; shutdown draws <1µA. Internal slope compensation prevents subharmonic oscillation above 40% duty cycle, and patented compensation preserves full 380mA peak switch current across all duty cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.875V ±2% - eliminates external feedback resistors and ensures stable core logic supply for low-voltage microcontrollers. |
| Input Voltage Range | 2.5V to 5.5V - supports full discharge curve of single Li-ion (2.7V–4.2V) with margin for USB or adapter inputs. |
| Switching Frequency | 2.25MHz (typ), 310kHz in short-circuit foldback - enables <1mm-height PCB designs using 2.2–4.7µH SMD inductors. |
| Max Output Current | 300mA continuous at VIN = 3V - sufficient for baseband processors, RF transceivers, and sensor hubs in handheld devices. |
| Quiescent Current | 26µA in Burst Mode, <1µA in shutdown - extends battery runtime in standby modes of cellular phones and MP3 players. |
| Package | SC70-6 (SC6), 2.0 × 1.25 × 0.9mm - ultra-compact footprint compatible with space-constrained portable PCB layouts. |
| Thermal Resistance | θJA = 250°C/W - junction temperature remains <92°C at 70°C ambient and 300mA load, well below 125°C limit. |
Pinout & Package
Package: SC70-6 (SC6), 6-lead plastic surface-mount package with exposed pad not present; body dimensions 2.0mm × 1.25mm × 0.9mm max height; pin 1 marked by indentation in index area.
| 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 IQ; must not be left floating. |
| GND (Pins 2, 5) | Power and signal ground reference | Dual GND pins reduce ground impedance and improve noise immunity; both must be connected to low-impedance PCB ground plane. |
| SW (Pin 3) | Switch node | Connects to inductor; carries high di/dt square-wave current; requires short, wide trace and tight CIN placement to minimize EMI. |
| VIN (Pin 4) | Main input supply | Accepts 2.5–5.5V; requires ≥2.2µF ceramic decoupling capacitor placed adjacent to pin to suppress switching transients. |
| VOUT (Pin 6) | Regulated output feedback | Internally divided 1.875V output; no external resistor network needed - simplifies layout and improves accuracy vs. external divider drift. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Eliminates external Schottky diode, increasing efficiency by ~5–8% and reducing thermal stress in 300mA applications. |
| Ceramic capacitor stability | Control loop independent of output capacitor ESR - enables use of low-profile, low-ESR X5R/X7R ceramics for <10mVPP ripple. |
| 100% duty-cycle operation | Supports dropout as low as VOUT – VGS(th), extending usable battery life down to ~2.5V input in Li-ion systems. |
| Overtemperature protection | Thermal shutdown activates at ~150°C junction; recovers automatically after cooldown - prevents permanent damage during overload. |
| Burst Mode efficiency optimization | Maintains >80% efficiency down to 100µA load - critical for always-on functions like real-time clocks and wake-on-RF in portable instruments. |
Applications
| Cellular Telephones | Wireless Modems |
|---|---|
Use Scenario: Powering baseband processor core voltage in GSM/UMTS handsets operating from single Li-ion cell. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering regulated 1.875V at up to 300mA with fast load transient response. Use Value: Enables >93% efficiency across 2.7–4.2V input range and extends talk time by minimizing quiescent loss during burst-mode idle periods. |
Use Scenario: Supplying 1.875V to Wi-Fi or LTE modem ICs in compact USB dongles or embedded modules. IC Role / Device Role / Timing Role: Compact, high-frequency DC/DC converter replacing larger discrete solutions to meet strict height constraints (<1mm). Use Value: SC70-6 footprint and 2.25MHz operation allow full power stage (inductor + caps) within 12mm² PCB area. |
| Digital Cameras | Portable Instruments |
Use Scenario: Providing clean, low-noise 1.875V supply to image sensor interface and ISP logic during video capture. IC Role / Device Role / Timing Role: Low-ripple synchronous regulator with ceramic-capacitor compatibility to avoid switching noise coupling into analog pixel paths. Use Value: Achieves <10mVPP output ripple at 300mA, meeting stringent noise requirements for 12-bit+ image processing chains. |
Use Scenario: Powering microcontroller, ADC, and display driver in handheld multimeters or gas detectors. IC Role / Device Role / Timing Role: Ultra-low-IQ step-down regulator supporting multi-year battery life in intermittent-use field instruments. Use Value: 26µA Burst Mode current and <1µA shutdown draw enable CR2032 coin-cell operation for >5 years in sleep-dominated duty cycles. |
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 |
|---|---|---|---|
| LTC3405AEDC-1.875#TRMPBF | Same 1.875V output, but 1.5MHz fSW, DFN-8 package (2mm × 2mm), higher 35µA IQ. | Requires larger inductor (≥3.3µH); better thermal dissipation at >300mA but larger footprint. | Select when board space allows DFN and higher thermal headroom is needed over SC70. |
| LTC3404ES6-1.875#TRMPBF | 1.875V output, 1.4MHz fSW, MS8 package (3mm × 3mm), 10µA IQ, 600mA IOUT. | Higher current capability and lower IQ, but 3× larger footprint and incompatible pinout. | Select when future-proofing for higher load or longer battery life justifies larger package and layout redesign. |
Compared with LTC3410ESC6-1.875, LTC3405A offers better thermal handling in DFN but sacrifices size and IQ; LTC3404 provides double the current and lower IQ in MS8 but cannot drop-in replace the SC70 layout - choice depends on whether minimal footprint or higher current headroom dominates the design priority.
Availability
LTC3410ESC6-1.875 is available at Aetrix Electronics and suitable for cellular telephones, wireless modems, digital cameras, MP3 players, and portable instruments requiring stable component supply with guaranteed long-term sourcing.
Supply support for LTC3410ESC6-1.875 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 full product support, documentation, and manufacturing continuity for legacy Linear regulators including the LTC3410 family.
The LTC3410 series was designed specifically for ultra-compact, high-efficiency power conversion in battery-powered portable electronics - emphasizing low IQ, ceramic-capacitor compatibility, and SC70 integration.
FAQ
What is the maximum continuous output current of the LTC3410ESC6-1.875?
The LTC3410ESC6-1.875 delivers up to 300mA continuous output current when VIN = 3V, with derating above 3V due to increased conduction losses. Peak switch current is rated at 380mA minimum, and thermal limits (θJA = 250°C/W) allow safe operation at full load up to 70°C ambient. The LTC3410ESC6-1.875 achieves this with internal MOSFETs and no external diode.
Does the LTC3410ESC6-1.875 require an external Schottky diode?
No, the LTC3410ESC6-1.875 integrates both P-channel main and N-channel synchronous rectifier switches, eliminating the need for an external Schottky diode. This improves efficiency by ~5–8%, reduces component count, and avoids reverse recovery losses. The LTC3410ESC6-1.875 is explicitly specified as "No Schottky Diode Required" in its official features list.
Can the LTC3410ESC6-1.875 operate with ceramic output capacitors?
Yes, the LTC3410ESC6-1.875 is fully stable with ceramic output capacitors - a key design feature confirmed in its datasheet. Its control loop does not rely on capacitor ESR for stability, enabling use of low-ESR X5R/X7R ceramics (e.g., 4.7µF) to achieve very low output ripple (<10mVPP) and minimal PCB footprint. The LTC3410ESC6-1.875 application circuits specify ceramic COUT exclusively.
What is the shutdown current of the LTC3410ESC6-1.875?
The LTC3410ESC6-1.875 draws less than 1µA supply current in shutdown mode, verified across the full temperature range (–40°C to 85°C). This is achieved by forcing the RUN pin below 0.3V, which disables all internal circuitry including the oscillator, error amplifier, and gate drivers. The LTC3410ESC6-1.875 shutdown specification is explicitly listed as "<1µA" in its Absolute Maximum Ratings table.
Is the LTC3410ESC6-1.875 pin-compatible with other SC70-6 regulators?
No, the LTC3410ESC6-1.875 has a unique pinout (RUN, GND, SW, VIN, GND, VOUT) and is not pin-compatible with generic SC70-6 DC/DC regulators. Substitution requires verification of function, timing, and thermal behavior - for example, LTC3405A uses DFN-8 and LTC3404 uses MS8, neither sharing pin mapping or footprint with the LTC3410ESC6-1.875 SC70-6 layout.
LTC3410ESC6-1.875#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):
- 1.875V
- 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
LTC3410ESC6-1.875#TRPBF FAQ
1.How can I place an order for LTC3410ESC6-1.875#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3410ESC6-1.875#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 LTC3410ESC6-1.875#TRPBF reliable?
The price and inventory of LTC3410ESC6-1.875#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3410ESC6-1.875#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC3410ESC6-1.875#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3410ESC6-1.875#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3410ESC6-1.875#TRPBF?
LTC3410ESC6-1.875#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3410ESC6-1.875#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 LTC3410ESC6-1.875#TRPBF?
For technical support, including LTC3410ESC6-1.875#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3410ESC6-1.875#TRPBF requirements.
6.How does Aetrix verify that LTC3410ESC6-1.875#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC3410ESC6-1.875#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 LTC3410ESC6-1.875#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC3410ESC6-1.875#TRPBF?
All LTC3410ESC6-1.875#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3410ESC6-1.875#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 LTC3410ESC6-1.875#TRPBF part is unused and in its original packaging.
Return procedure for LTC3410ESC6-1.875#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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