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Analog Devices Inc. LTC3410BESC6-1.875#TRPBF
- Part No.:
- LTC3410BESC6-1.875#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
LTC3410BESC6-1.875#TRPBF.pdf
- Description:
- IC REG BUCK 1.875V 300MA SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,848
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Product details
Overview
LTC3410BESC6-1.875#TRPBF from Analog Devices (formerly Linear Technology) is a fixed-output, high-efficiency synchronous step-down DC/DC regulator in SC70-6 package, delivering up to 300mA at 1.875V with 2.25MHz switching frequency, ±2% output accuracy, and operation from 2.5V–5.5V input-designed for Li-ion battery-powered portable instrumentation and digital cameras.
For engineers reviewing the LTC3410BESC6-1.875#TRPBF datasheet, LTC3410BESC6-1.875#TRPBF pinout, LTC3410BESC6-1.875#TRPBF application, or LTC3410BESC6-1.875#TRPBF equivalent, key selection criteria include fixed 1.875V output, 2.25MHz constant-frequency current-mode control, SC70-6 thermal performance (θJA = 250°C/W), and shutdown current <1µA for ultra-low-power standby modes.
Technical Context
The LTC3410BESC6-1.875#TRPBF employs a constant-frequency, current-mode architecture with integrated P-channel main and N-channel synchronous switches. It operates across 2.5V–5.5V input, supports 100% duty cycle for low-dropout operation, and uses internal slope compensation to maintain stability at high duty cycles without reducing peak inductor current.
Pulse-skipping mode enables regulation at light loads while minimizing output ripple; overtemperature protection disables both switches above ~150°C junction temperature. The VOUT pin (Pin 6) connects to an internal resistive divider referenced to 0.8V, eliminating external feedback components for fixed-output variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.875V ±2% (tested at 100mA load; ensures stable core voltage for low-power microcontrollers) |
| Switching Frequency | 2.25MHz (enables use of compact 2.2–4.7µH inductors and 2.2µF ceramic capacitors) |
| Max Output Current | 300mA continuous (supports digital camera image sensors and MP3 decoder ICs) |
| Input Voltage Range | 2.5V to 5.5V (fully compatible with single-cell Li-ion batteries from 2.7V cutoff to 4.2V full charge) |
| Efficiency | Up to 96% (achieved at mid-load with 3.6V input → 1.875V output; minimizes thermal stress in sealed enclosures) |
| Shutdown Current | <1µA (extends battery life during sleep modes in portable instruments) |
| Package | SC70-6 (1.8mm × 1.2mm × 0.9mm; low-profile footprint for space-constrained PCBs) |
Pinout & Package
The LTC3410BESC6-1.875#TRPBF is housed in a 6-lead plastic SC70 package (JEDEC MO-203AA), with exposed pad omitted. Thermal resistance θJA = 250°C/W. Pin 1 (RUN) enables/disables regulation; Pins 2 & 5 are GND; Pin 3 is SW (switch node); Pin 4 is VIN; Pin 6 is VOUT (internally connected to fixed 1.875V feedback divider).
| 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 |
| GND (Pins 2, 5) | Power and signal ground | Dual ground pins reduce ground impedance and improve transient response under load steps |
| SW (Pin 3) | Switch node | Connects to inductor; carries high di/dt square-wave current-requires short, wide trace routing |
| VIN (Pin 4) | Main input supply | Accepts 2.5–5.5V; requires local 2.2µF ceramic decoupling capacitor placed adjacent to pin |
| VOUT (Pin 6) | Fixed-output feedback node | Internally tied to 1.875V divider-no external resistors needed; used for remote sensing in precision applications |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Eliminates external Schottky diode, increasing efficiency by ~5–8% vs asynchronous designs at 300mA |
| 100% duty cycle operation | Enables dropout down to VIN ≈ VOUT + ILOAD × RDS(ON), extending usable battery range in portable systems |
| Ceramic capacitor compatibility | Stable with low-ESR X5R/X7R ceramics-reduces output ripple to <10mVp-p and shrinks PCB area by >40% |
| Current-mode control | Delivers fast line/load transient response (≤10µs recovery) without external compensation components |
| Overtemperature protection | Thermal shutdown at ~150°C junction temperature prevents permanent damage during sustained overload or poor heatsinking |
Applications
| Portable Digital Cameras | Li-ion–Powered MP3 Players |
|---|---|
Use Scenario: Powering CMOS image sensor and ISP ASIC in compact digital still cameras with single-cell Li-ion battery. IC Role / Device Role / Timing Role: Primary 1.875V core supply regulator delivering regulated power to sensor interface and image processing blocks. Use Value: 96% peak efficiency preserves battery runtime; 2.25MHz switching avoids audible noise and allows tiny 2.2µH inductor placement near sensor module. | Use Scenario: Supplying DSP core and audio DAC in battery-operated MP3 players requiring stable 1.875V rail. IC Role / Device Role / Timing Role: Fixed-output buck converter providing low-noise, low-ripple power to audio subsystem during playback and decode. Use Value: Pulse-skipping mode maintains regulation at µA-level standby currents; SC70-6 footprint enables integration into ultra-thin player PCBs. |
| Handheld Test Instruments | Wireless Modem Basebands |
Use Scenario: Generating precision 1.875V supply for ADC reference and microcontroller core in portable multimeters and oscilloscopes. IC Role / Device Role / Timing Role: Low-drift, low-noise power source ensuring ADC accuracy and MCU clock stability across battery discharge cycle. Use Value: ±2% output accuracy and <0.4%/V line regulation guarantee consistent measurement fidelity; shutdown current <1µA enables multi-week standby. | Use Scenario: Powering baseband processor and RF transceiver logic in DSL/wireless modems powered by 3.3V or Li-ion sources. IC Role / Device Role / Timing Role: Efficient point-of-load regulator converting intermediate rail to 1.875V core voltage for digital baseband ICs. Use Value: 2.25MHz operation avoids interference with 2.4GHz/5GHz RF bands; synchronous design reduces thermal load in enclosed modem housings. |
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 1.8V output, 3MHz switching, 400mA IOUT, 1.8–6.5V input, WSON-6 package (2.0mm × 2.0mm) | Higher switching frequency enables smaller passives but increases EMI sensitivity; 0.2V lower output requires level-shifting for 1.875V-dependent peripherals | Select when board space permits larger package and system tolerates 1.8V instead of 1.875V |
| MAX17222ETA+T | Adjustable 0.4–3.3V output, 2MHz, 500mA, 2.0–5.5V input, 6-bump WLP (1.22mm × 0.84mm) | Requires external feedback resistors; smaller WLP footprint but no fixed 1.875V option-designer must set output via resistor ratio | Select when adjustable output is preferred and layout allows fine-pitch WLP assembly |
Compared with TPS62231DRYR and MAX17222ETA+T, the LTC3410BESC6-1.875#TRPBF provides exact 1.875V output without external components, superior load regulation (0.5% vs ≥1%), and proven ceramic-capacitor stability in noise-sensitive imaging/audio applications-making it optimal for precision fixed-rail designs where BOM count and layout simplicity are critical.
Availability
LTC3410BESC6-1.875#TRPBF is available at Aetrix Electronics and suitable for portable instrumentation, digital cameras, and wireless modems requiring stable component supply with guaranteed long-term availability and full traceability.
Supply support for LTC3410BESC6-1.875#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. (ADI) is a global leader in high-performance analog, mixed-signal, and power management semiconductors, formed through the acquisition of Linear Technology in 2017.
The LTC3410B series belongs to ADI's high-frequency synchronous buck regulator product line, engineered specifically for space-constrained, battery-powered portable electronics demanding high efficiency, low quiescent current, and minimal external component count.
FAQ
What is the output voltage tolerance of the LTC3410BESC6-1.875#TRPBF over temperature and load?
The LTC3410BESC6-1.875#TRPBF guarantees ±2% output voltage accuracy over the full –40°C to +85°C operating temperature range and for load currents from 50mA to 250mA. At 100mA load, the measured output is 1.837V to 1.913V. Line regulation is 0.04–0.4%/V across 2.5V–5.5V input, ensuring stable 1.875V delivery as the Li-ion battery discharges.
Does the LTC3410BESC6-1.875#TRPBF require external feedback resistors?
No. The LTC3410BESC6-1.875#TRPBF is a fixed-output variant with an internal resistive divider connected to Pin 6 (VOUT), referencing the 0.8V internal bandgap. Unlike the adjustable LTC3410BE, it requires no external R1/R2 resistors-reducing BOM count and layout complexity while maintaining ±2% accuracy.
What is the maximum achievable output current for the LTC3410BESC6-1.875#TRPBF at 3.6V input?
The LTC3410BESC6-1.875#TRPBF delivers up to 300mA continuously at 3.6V input, as confirmed in the datasheet's "300mA Output Current at VIN = 3V" specification and validated by thermal testing in SC70-6 package (θJA = 250°C/W). Peak switch current capability is 380mA minimum, supporting brief load transients beyond 300mA.
How does the LTC3410BESC6-1.875#TRPBF behave during input undervoltage conditions?
The LTC3410BESC6-1.875#TRPBF features undervoltage lockout (UVLO) with rising threshold of 2.0–2.3V and falling threshold of 1.94V. When VIN drops below UVLO, regulation ceases and the device enters low-current state (<1µA). Recovery occurs only after VIN rises above 2.3V, preventing erratic startup during brownout conditions common in aging Li-ion cells.
Can the LTC3410BESC6-1.875#TRPBF be used with ceramic output capacitors?
Yes-the LTC3410BESC6-1.875#TRPBF is explicitly designed for stable operation with ceramic output capacitors. Its current-mode control loop does not rely on ESR for stability, enabling use of low-ESR X5R/X7R ceramics (e.g., 2.2µF, 0603) to achieve <10mVp-p output ripple and minimize PCB footprint without risk of oscillation.
LTC3410BESC6-1.875#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
LTC3410BESC6-1.875#TRPBF FAQ
1.How can I place an order for LTC3410BESC6-1.875#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3410BESC6-1.875#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 LTC3410BESC6-1.875#TRPBF reliable?
The price and inventory of LTC3410BESC6-1.875#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3410BESC6-1.875#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC3410BESC6-1.875#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3410BESC6-1.875#TRPBF transactions.
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LTC3410BESC6-1.875#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3410BESC6-1.875#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 LTC3410BESC6-1.875#TRPBF?
For technical support, including LTC3410BESC6-1.875#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3410BESC6-1.875#TRPBF requirements.
6.How does Aetrix verify that LTC3410BESC6-1.875#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC3410BESC6-1.875#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 LTC3410BESC6-1.875#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC3410BESC6-1.875#TRPBF?
All LTC3410BESC6-1.875#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3410BESC6-1.875#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 LTC3410BESC6-1.875#TRPBF part is unused and in its original packaging.
Return procedure for LTC3410BESC6-1.875#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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