My Inquiry
My Account
Analog Devices Inc. LTC3307BJV#TRPBF
- Part No.:
- LTC3307BJV#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 12-VFQFN Exposed Pad
- Datasheet:
-
LTC3307BJV#TRPBF.pdf
- Description:
- IC REG BUCK 3A
- Quantity:
- Payment:
- Shipping:
Inventory:2,670
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC3307BJV#TRPBF from Analog Devices is a monolithic synchronous step-down DC/DC converter delivering up to 3A output at 500mV–VIN, operating from 2.25V–5.5V input with 6.6MHz default switching frequency, 22ns minimum on-time, and ±1% VFB accuracy over temperature. It integrates 8mΩ NMOS and 31mΩ PMOS power switches in a thermally enhanced 2mm × 2mm LQFN package and supports automotive-grade operation up to +150°C junction temperature.
For engineers reviewing the LTC3307BJV#TRPBF datasheet, LTC3307BJV#TRPBF pinout, LTC3307BJV#TRPBF application, or LTC3307BJV#TRPBF equivalent, key selection considerations include its Silent Switcher® EMI performance, programmable 3–10MHz frequency via RT resistor or external SYNC clock, forced continuous/pulse-skipping/Burst Mode™ operation modes, and AEC-Q100 qualification for automotive power rails.
Technical Context
The LTC3307BJV#TRPBF uses constant-frequency peak current mode control with internal compensation, enabling fast transient response without external loop components. Its 22ns minimum on-time supports high VIN/VOUT ratios (e.g., 5.5V→1.8V at 6.6MHz), while slope compensation adapts automatically during external clock synchronization (3–10MHz).
Silent Switcher® architecture employs symmetrical layout and integrated bypass capacitors to suppress common-mode EMI, achieving ultralow emissions without shielding. The device implements forward/reverse inductor current limiting (4.8A peak / 3.9A valley), output overvoltage protection (110% VOUT), and thermal shutdown at 165°C with hysteresis.
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 FPGAs, ASICs, and microprocessors |
| Max Output Current | 3A continuous - sustained delivery with thermal derating above 125°C junction |
| Switching Frequency | Programmable 3MHz–10MHz - balances size (small inductors/caps) vs. efficiency vs. transient response |
| Feedback Accuracy | ±1% over –40°C to +150°C - ensures stable regulation across automotive under-hood environments |
| Quiescent Current | 40µA in Burst Mode sleep - extends battery life in always-on systems |
| Top/Bottom RDS(ON) | 31mΩ / 8mΩ - minimizes conduction loss and dropout voltage at high load |
Pinout & Package
The LTC3307BJV#TRPBF is housed in a 12-lead 2mm × 2mm × 0.74mm LQFN package with exposed PGND pad (Pin 13) for low thermal resistance (θJA = 51°C/W). All pins are surface-mount compatible and require controlled-impedance PCB layout per Analog Devices' Silent Switcher guidelines.
| 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 reject PCB IR drop |
| EN (2) | Enable control input | 400mV precision threshold with hysteresis; enables power-up sequencing with external divider |
| VIN (3,8) | Main power input | Dual high-current paths for internal circuitry and top switch; requires parallel low-ESR ceramic bypassing to PGND/AGND |
| PGND (4,7,13) | Power ground return | Primary return for bottom switch; exposed pad (13) must be soldered to large PCB ground plane with ≥6 vias |
| SW (5,6) | Switch node | High dv/dt node connecting internal MOSFETs to external inductor; requires short, wide copper trace to minimize ringing |
| MODE/SYNC (9) | Mode selection & clock sync | Configures operation mode (low = pulse-skip, float = forced continuous, high = Burst Mode); accepts 3–10MHz external clock |
| RT (10) | Frequency programming | Resistor-to-AGND sets fSW from 3–10MHz; open or tied to VIN selects default 6.6MHz |
| PGOOD (11) | Power good indicator | Open-drain output asserting high when VOUT is within –2%/+10% of regulation; includes 120µs delay and OV/UV hysteresis |
| FB (12) | Feedback input | Regulates VFB to 500mV; connects to resistor divider from VOUT to AGND for precise output setting |
Key Features
| Feature | Design Value |
|---|---|
| Silent Switcher® architecture | Reduces radiated EMI by >20dB vs. conventional buck converters, eliminating need for ferrite beads or metal shields |
| Burst Mode® operation | Delivers 40µA quiescent current at light loads while maintaining <10mVPP output ripple - ideal for always-on automotive sensors |
| 100% duty-cycle capability | Enables ultra-low dropout operation (e.g., 3.3V→3.0V) by holding top switch fully on, limited only by RDS(ON) and inductor DCR |
| AEC-Q100 Grade J qualification | Guaranteed operation from –40°C to +150°C junction temperature with full electrical characterization and reliability testing |
| Internal soft-start and power good | 250µs–3ms programmable soft-start prevents input surge; PGOOD provides system-level fault signaling with built-in noise immunity |
Applications
| Automotive ADAS Power Rail | FPGA Core Supply |
|---|---|
Use Scenario: Powers image signal processors and radar SoCs in front-camera modules exposed to under-hood temperatures up to +125°C ambient. IC Role / Device Role / Timing Role: Primary 1.2V/1.8V POL regulator delivering 3A with tight load/transient regulation and low EMI to avoid interference with RF receivers. Use Value: AEC-Q100 Grade J rating ensures reliability at 150°C junction; Silent Switcher® meets CISPR-25 Class 5 radiated emissions limits without shielding. | Use Scenario: Supplies configurable logic core voltage (0.85V–1.2V) for Xilinx Artix-7 and Intel Cyclone V FPGAs in industrial PLCs. IC Role / Device Role / Timing Role: High-bandwidth synchronous buck providing fast transient response (<5µs recovery) to handle FPGA dynamic current steps up to 2A/µs. Use Value: 22ns minimum on-time enables stable 6.6MHz operation at 5V→1.0V conversion; internal compensation eliminates loop tuning effort. |
| Optical Transceiver Bias | Server DDR Memory Termination |
Use Scenario: Generates precise 3.3V bias for SFP+ and QSFP28 optical module lasers and TIAs in telecom line cards. IC Role / Device Role / Timing Role: Low-noise, low-ripple POL converter with Burst Mode™ for standby and forced continuous for active transmission bursts. Use Value: ±1% VFB accuracy over temperature ensures laser bias stability; 4.7µF output caps meet JEDEC DDR4 termination ripple specs. | Use Scenario: Provides VTT termination supply (0.6V @ 3A) for DDR4 memory subsystems in cloud server motherboards. IC Role / Device Role / Timing Role: High-efficiency, small-footprint point-of-load regulator placed adjacent to memory DIMM slots. Use Value: 2mm × 2mm LQFN footprint saves board space; 8mΩ/31mΩ RDS(ON) minimizes power loss and thermal rise near memory banks. |
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#TRPBF | 4A rated, pin-compatible but larger 2.5mm × 3mm LQFN; higher RDS(ON) (12mΩ/40mΩ); no AEC-Q100 qualification | Targets higher-current FPGA cores where thermal margin exceeds LTC3307B's 3A limit | Select when >3A output is required and automotive qualification is not needed |
| TPS62864DLCR | 3A, 2.5V–5.5V, 1.8MHz–10MHz, 12µA IQ in DCS-Control™, 1.2mm × 1.6mm WSON-10 | Lower EMI than standard buck but lacks Silent Switcher®; not AEC-Q100 qualified | Choose for space-constrained consumer applications where ultra-low IQ outweighs EMI requirements |
Compared with LTC3308EV#TRPBF and TPS62864DLCR, the LTC3307BJV#TRPBF uniquely combines AEC-Q100 Grade J qualification, Silent Switcher® EMI performance, and 2mm × 2mm footprint-making it the only option for compact, high-reliability automotive and telecom POL designs requiring <10MHz switching.
Availability
LTC3307BJV#TRPBF is available at Aetrix Electronics and suitable for automotive ADAS modules, FPGA core supplies, optical transceiver biasing, and server DDR memory termination requiring stable component supply across extended temperature ranges.
Supply support for LTC3307BJV#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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC3307B product line delivers ultra-compact, high-frequency synchronous buck regulators optimized for noise-sensitive, space-constrained applications including automotive infotainment, optical networking, and FPGA/ASIC core power - with emphasis on EMI reduction and extended temperature reliability.
FAQ
What is the maximum junction temperature rating for the LTC3307BJV#TRPBF?
The LTC3307BJV#TRPBF is specified for operation up to +150°C junction temperature and is AEC-Q100 Grade J qualified. Thermal shutdown activates at ~165°C with hysteresis, and the package features θJA = 51°C/W on a JEDEC 2S2P board. For reliable long-term operation, design should maintain TJ ≤ 150°C using the exposed PGND pad and adequate PCB copper area.
How does the MODE/SYNC pin configure operating modes on the LTC3307BJV#TRPBF?
The MODE/SYNC pin configures three distinct modes on the LTC3307BJV#TRPBF: grounding it enables pulse-skipping mode; tying it to VIN enables low-ripple Burst Mode™ operation (40µA IQ); floating it enables forced continuous conduction mode for fixed-frequency, lowest-noise performance. When driven by an external 3–10MHz square wave, the LTC3307BJV#TRPBF synchronizes and operates in forced continuous mode with automatic slope compensation adaptation.
Can the LTC3307BJV#TRPBF support 5V input to 1.8V output at 6.6MHz?
Yes, the LTC3307BJV#TRPBF supports 5V→1.8V conversion at 6.6MHz. Its 22ns minimum on-time satisfies the required duty cycle (36%) with margin, and typical efficiency exceeds 90% at 3A load per Figure 3307B G22. Use the recommended Murata DFE18SAN-R24M-G0 220nH inductor and dual 4.7µF output capacitors for optimal performance.
What protection features are integrated into the LTC3307BJV#TRPBF?
The LTC3307BJV#TRPBF integrates output overvoltage protection (110% VOUT trip), short-circuit protection via valley current limiting (3.9A), thermal shutdown at ~165°C, input UVLO (2.1V rising), and reverse current limiting (–2.25A). It also features power good monitoring with 120µs delay and hysteresis, plus soft-start to prevent inrush current - all without requiring external components.
Is the LTC3307BJV#TRPBF pin-compatible with other members of the LTC3307 family?
Yes, the LTC3307BJV#TRPBF shares identical pinout and footprint with all LTC3307x variants (E/I/J/H/MP grades), enabling drop-in replacement across temperature grades. It is also pin-compatible with the higher-current LTC3308 (4A) and LTC3309 (6A), allowing scalable power design with minimal PCB redesign - though RDS(ON), current limits, and thermal characteristics differ.
LTC3307BJV#TRPBF 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:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-LQFN (2x2)
LTC3307BJV#TRPBF FAQ
1.How can I place an order for LTC3307BJV#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3307BJV#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 LTC3307BJV#TRPBF reliable?
The price and inventory of LTC3307BJV#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3307BJV#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC3307BJV#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3307BJV#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3307BJV#TRPBF?
LTC3307BJV#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3307BJV#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 LTC3307BJV#TRPBF?
For technical support, including LTC3307BJV#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3307BJV#TRPBF requirements.
6.How does Aetrix verify that LTC3307BJV#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC3307BJV#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 LTC3307BJV#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC3307BJV#TRPBF?
All LTC3307BJV#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3307BJV#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 LTC3307BJV#TRPBF part is unused and in its original packaging.
Return procedure for LTC3307BJV#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC3307BJV#TRPBF Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
