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Analog Devices Inc. LTC3307BJV#TRMPBF
- Part No.:
- LTC3307BJV#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 12-VFQFN Exposed Pad
- Datasheet:
-
LTC3307BJV#TRMPBF.pdf
- Description:
- IC REG BUCK ADJ 2A/2A DL 12LQFN
- Quantity:
- Payment:
- Shipping:
Inventory:336
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Product details
Overview
LTC3307BJV#TRMPBF from Analog Devices is a monolithic synchronous step-down DC/DC converter delivering 3A output at up to 10MHz switching frequency, operating from 2.25V–5.5V input and regulating down to 0.5V with ±1% accuracy. It features Silent Switcher® architecture for ultralow EMI, 22ns minimum on-time for fast transient response, and AEC-Q100 qualification for automotive underhood applications.
For engineers reviewing the LTC3307BJV#TRMPBF datasheet, LTC3307BJV#TRMPBF pinout, LTC3307BJV#TRMPBF application, or LTC3307BJV#TRMPBF equivalent, key selection considerations include its 2mm × 2mm LQFN package with exposed PGND pad, forced continuous/pulse-skipping/Burst Mode operation modes, 40µA quiescent current in Burst Mode, and thermal rating up to +150°C junction temperature.
Technical Context
The LTC3307BJV#TRMPBF employs constant-frequency peak current mode control with internal compensation, supporting programmable switching frequencies from 3MHz to 10MHz via RT resistor or external clock synchronization on MODE/SYNC. Its 22ns minimum on-time enables high VIN/VOUT ratios and fast load-step response.
Silent Switcher® architecture uses symmetrical layout and integrated bypass capacitors to suppress common-mode EMI, while dual power switches (8mΩ NMOS / 31mΩ PMOS) enable high efficiency across load range. The device supports 100% duty-cycle operation for low-dropout regulation and includes robust protection: output overvoltage, short-circuit, thermal shutdown, and reverse inductor current limiting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2.25V to 5.5V - supports single-cell Li-ion, USB PD, and intermediate bus rails |
| VOUT Range | 0.5V to VIN - enables core supplies for FPGA, ASIC, and microprocessors |
| Max Output Current | 3A continuous - sufficient for point-of-load regulation of high-speed digital loads |
| Switching Frequency | 3MHz to 10MHz - allows use of sub-1µH inductors and 0201/0402 capacitors for ultra-compact designs |
| Feedback Voltage | 0.5V ±1% - enables precise low-voltage regulation with minimal resistor divider error |
| Quiescent Current | 40µA in Burst Mode - extends battery life in always-on automotive sensors and telematics |
| Thermal Rating | Junction temp up to +150°C - qualified for under-hood automotive environments per AEC-Q100 |
| EMI Performance | Ultralow emissions via Silent Switcher® - meets CISPR 25 Class 5 without shielding or ferrites |
Pinout & Package
The LTC3307BJV#TRMPBF is housed in a thermally enhanced 12-lead 2mm × 2mm × 0.74mm LQFN package with exposed PGND pad (Pin 13), requiring soldering to PCB ground plane for optimal thermal and electrical performance (θJB = 12°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AGND (1) | Analog ground reference | Remote sense return for FB; must connect directly to output capacitor negative terminal to minimize voltage error |
| EN (2) | Enable control input | 400mV precision threshold with hysteresis; enables power-up sequencing with external resistor dividers |
| VIN (3,8) | Main power input | Dual pins reduce IR drop and inductance; require local 0201/0402 ceramic bypass to AGND and PGND |
| PGND (4,7,13) | Power ground return | Exposed pad (Pin 13) is primary thermal path; must be connected to large PCB ground plane with multiple vias |
| SW (5,6) | Switch node | Dual pins reduce loop inductance; connect together and to inductor with short, wide copper trace |
| MODE/SYNC (9) | Mode selection & sync input | Configures pulse-skipping (GND), Burst Mode (VIN), or forced continuous (float); accepts 3–10MHz external clock |
| RT (10) | Frequency programming | Resistor to AGND sets fSW from 3–10MHz; tied to VIN for default 6.6MHz operation |
| PGOOD (11) | Open-drain status output | Indicates VOUT within –2%/+10% window; pulled low during UVLO, shutdown, or OV fault |
| FB (12) | Feedback input | Regulates to 0.5V; connects to resistor divider between VOUT and AGND for output voltage setting |
Key Features
| Feature | Design Value |
|---|---|
| Silent Switcher® architecture | Reduces radiated EMI by >30dB vs conventional buck converters, eliminating need for EMI filters in space-constrained automotive modules |
| 22ns minimum on-time | Enables stable 1.8V output from 3.3V input at 10MHz, supporting high-frequency POL in high-speed serial interfaces |
| Burst Mode® operation | Delivers 40µA IQ at light loads while maintaining <10mVPP output ripple - ideal for always-on vehicle networking nodes |
| AEC-Q100 Grade J qualification | Guaranteed operation from –40°C to +150°C junction temperature, validated for engine control, ADAS camera, and infotainment power rails |
| Internal compensation & soft-start | Eliminates external compensation network; 0.25–3ms programmable soft-start prevents inrush current during cold cranking events |
| 100% duty-cycle capability | Supports dropout operation down to VIN – (ILOAD × RDS(ON)) - maintains regulation during automotive load-dump transients |
Applications
| Automotive Camera Power Supply | FPGA Core Voltage Regulation |
|---|---|
Use Scenario: Powering 12MP image sensor and ISP in rear-view camera module mounted near exhaust manifold. IC Role / Device Role / Timing Role: Primary 1.2V/3A POL regulator with thermal derating margin for +125°C ambient. Use Value: Silent Switcher® EMI suppression avoids interference with 5GHz Wi-Fi and radar bands; 150°C junction rating ensures reliability without heatsink. | Use Scenario: Generating 0.85V core supply for Xilinx Zynq UltraScale+ MPSoC in autonomous driving ECU. IC Role / Device Role / Timing Role: High-bandwidth, low-noise buck converter synchronized to system clock for jitter-sensitive logic domains. Use Value: 10MHz switching enables <100nH inductor and 4.7µF ceramic output capacitance, reducing board area by 40% vs 2MHz solutions. |
| Optical Transceiver Module | Industrial PLC I/O Power |
Use Scenario: Providing 3.3V/2A bias for SFP28 optical modules in 5G base station line cards. IC Role / Device Role / Timing Role: Input-filtered step-down regulator with Burst Mode for low-idle power and forced continuous for burst traffic peaks. Use Value: 40µA IQ extends standby time during fiber link sleep states; 6.6MHz default frequency minimizes conducted noise on sensitive analog receive paths. | Use Scenario: Generating isolated 5V/1A auxiliary rail for digital I/O expansion modules in factory automation controllers. IC Role / Device Role / Timing Role: Robust POL converter tolerant of 24V industrial bus transients and wide ambient temperature swings. Use Value: AEC-Q100 qualification ensures long-term stability at +85°C ambient; output overvoltage protection safeguards downstream logic during field wiring faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC3308EV#TRMPBF | 4A rated, pin-compatible but larger 2.5mm × 2.5mm package; higher RDS(ON) (12mΩ/45mΩ) | Higher current headroom for future-proofing; less suitable for ultra-compact layouts | Select when >3A peak load or lower thermal resistance is required; requires PCB layout revision |
| TPS62864DRLR | 3A, 2.5V–5.5V, 1.8V–3.3V fixed output; no RT programming or SYNC; 12µA IQ in DCM | Fixed-output variant only; lacks Burst Mode low-noise operation and AEC-Q100 qualification | Select for cost-sensitive consumer applications where automotive qualification and EMI control are not required |
Compared with LTC3308EV#TRMPBF and TPS62864DRLR, the LTC3307BJV#TRMPBF uniquely combines AEC-Q100 Grade J qualification, Silent Switcher® EMI performance, and 2mm × 2mm footprint-making it the only choice for space-constrained, safety-critical automotive power rails requiring both low noise and high thermal resilience.
Availability
LTC3307BJV#TRMPBF is available at Aetrix Electronics and suitable for automotive camera modules, FPGA core supplies, optical transceivers, and industrial PLC I/O requiring stable component supply across extended temperature ranges and stringent EMI compliance.
Supply support for LTC3307BJV#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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, and automotive markets.
The LTC3307B product line delivers ultra-small, high-frequency synchronous buck regulators optimized for automotive-grade point-of-load applications demanding low EMI, high efficiency, and extended temperature operation.
FAQ
What is the maximum junction temperature specification for LTC3307BJV#TRMPBF?
The LTC3307BJV#TRMPBF is specified for operation up to +150°C junction temperature and is AEC-Q100 qualified for automotive Grade J applications. This rating is validated through characterization and statistical process controls-not just guaranteed by design-and enables reliable use in under-hood environments such as engine control units and ADAS camera modules where ambient temperatures exceed +105°C.
Does LTC3307BJV#TRMPBF support external clock synchronization?
Yes, the LTC3307BJV#TRMPBF supports external clock synchronization via its MODE/SYNC pin, accepting square-wave inputs from 3MHz to 10MHz with ≥40ns high/low pulse widths and logic levels of 0.4V (low) and 1.2V (high). During synchronization, the device operates in forced continuous mode with automatic slope compensation adaptation, enabling deterministic timing alignment in multi-rail systems like automotive domain controllers.
How does the Silent Switcher® architecture in LTC3307BJV#TRMPBF reduce EMI?
The Silent Switcher® architecture in LTC3307BJV#TRMPBF reduces EMI through symmetrical internal power switch layout, integrated input bypass capacitors, and minimized hot-loop area. This design cancels common-mode magnetic fields and suppresses radiated emissions by >30dB compared to conventional buck converters-allowing the LTC3307BJV#TRMPBF to meet CISPR 25 Class 5 without external shielding or ferrite beads in automotive applications.
What is the minimum on-time of LTC3307BJV#TRMPBF and why does it matter?
The LTC3307BJV#TRMPBF has a guaranteed minimum on-time of 22ns, enabling stable regulation at high switching frequencies (up to 10MHz) and high VIN/VOUT ratios-for example, generating 1.8V from 3.3V input. This parameter directly determines the smallest achievable duty cycle and thus the highest usable frequency without pulse skipping, which is critical for achieving fast transient response and minimizing output filter size in compact POL designs.
Can LTC3307BJV#TRMPBF operate in 100% duty-cycle mode?
Yes, the LTC3307BJV#TRMPBF supports true 100% duty-cycle operation, allowing regulation when VIN approaches VOUT. In this mode, the top PMOS switch remains continuously on, and output voltage equals VIN minus the voltage drop across the internal PMOS RDS(ON) (31mΩ) and inductor DCR. This feature ensures uninterrupted power delivery during automotive cold-crank events where input voltage dips below nominal levels.
LTC3307BJV#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- Silent Switcher®1
- Package/Case:
- 12-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 2.25V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 2A, 2A
- Frequency - Switching:
- 6MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-LQFN (2x2)
LTC3307BJV#TRMPBF FAQ
1.How can I place an order for LTC3307BJV#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3307BJV#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 LTC3307BJV#TRMPBF reliable?
The price and inventory of LTC3307BJV#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3307BJV#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC3307BJV#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3307BJV#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3307BJV#TRMPBF?
LTC3307BJV#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3307BJV#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 LTC3307BJV#TRMPBF?
For technical support, including LTC3307BJV#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3307BJV#TRMPBF requirements.
6.How does Aetrix verify that LTC3307BJV#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC3307BJV#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 LTC3307BJV#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC3307BJV#TRMPBF?
All LTC3307BJV#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3307BJV#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 LTC3307BJV#TRMPBF part is unused and in its original packaging.
Return procedure for LTC3307BJV#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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