My Inquiry
My Account
Analog Devices Inc. LTC3310JV#TRMPBF
- Part No.:
- LTC3310JV#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 18-TFQFN Exposed Pad
- Datasheet:
-
LTC3310JV#TRMPBF.pdf
- Description:
- IC REG BUCK ADJ 10A 18LQFN
- Quantity:
- Payment:
- Shipping:
Inventory:250
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC3310JV#TRMPBF from Analog Devices is a monolithic, Silent Switcher 2 synchronous step-down DC/DC converter delivering up to 10A output current from a 2.25V–5.5V input, featuring 4.5mΩ NMOS and 16mΩ PMOS switches, ±1% VOUT accuracy with remote sense, and 35ns minimum on-time. It operates in automotive-grade –40°C to 150°C junction temperature range and targets FPGA, ASIC, and µP core supplies requiring low EMI and high efficiency.
For engineers reviewing the LTC3310JV#TRMPBF datasheet, LTC3310JV#TRMPBF pinout, LTC3310JV#TRMPBF application, or LTC3310JV#TRMPBF equivalent, this page delivers verified technical context, validated pin functions, confirmed thermal and EMI performance data, and real-world design implications for high-current POL systems.
Technical Context
The LTC3310JV#TRMPBF implements constant-frequency peak current mode control with internal hot-loop bypass capacitors for ultralow EMI emissions per CISPR25 Class 5. Its Silent Switcher 2 architecture enables stable 5MHz switching with 35ns minimum on-time and 100% duty cycle dropout operation.
It integrates dual power switches (NMOS: 4.5mΩ, PMOS: 16mΩ), precision 500mV feedback reference, programmable frequency via RT pin, and die temperature monitoring via SSTT pin. The device supports multiphase paralleling and external clock synchronization through MODE/SYNC pin with 0.5–2.25MHz sync range.
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 without pre-regulation. |
| Max Output Current | 10A - sustained delivery enabled by thermally enhanced 3mm × 3mm LQFN package with θJCbottom = 9°C/W. |
| Feedback Reference | 500mV ±1% - enables accurate low-VOUT regulation (down to 0.5V) with remote sensing compensation for ground offsets up to ±100mV. |
| Switching Frequency | Programmable 0.5–5MHz - allows optimization of size vs. efficiency; default 2MHz with RT = 274kΩ. |
| Min On-Time | 35ns - supports high VIN-to-VOUT ratios (e.g., 5V→0.5V at 10MHz effective) without pulse skipping. |
| Shutdown Current | 1µA - ensures ultra-low system standby power in battery-backed or always-on applications. |
| Thermal Grade | AEC-Q100 qualified, J-grade (–40°C to +150°C TJ) - validated for under-hood automotive and industrial high-temp environments. |
Pinout & Package
Package: 18-lead 3mm × 3mm LQFN with exposed PGND pad (Pin 19), θJA = 42°C/W, θJCbottom = 9°C/W. Exposed pad must be soldered to PCB for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (1) | Enable control input | Precision 400mV threshold with hysteresis; direct tie to VIN enables operation; resistor divider enables UVLO programming. |
| AGND (2) | Remote sense ground | Kelvin connection point for FB divider low-side; compensates for PCB trace IR drop to maintain ±1% VOUT accuracy at load. |
| VIN (3,4,11,12) | Input power supply | Four parallel pins reduce impedance; internal Silent Switcher 2 VIN–PGND/AGND bypass caps minimize loop area and EMI. |
| PGND (5,10,19) | Power ground return | Three dedicated pins + exposed pad form primary thermal path; requires large copper pour and multiple vias to inner ground planes. |
| SW (6–9) | Switch node output | Four parallel SW pins connect directly to inductor; low-inductance routing critical for minimizing voltage spikes and EMI. |
| MODE/SYNC (13) | Sync input / phase control | Accepts external clock (0.5–2.25MHz) or outputs synchronized clock; configures pulse-skip vs. forced continuous mode. |
| PGOOD (14) | Power-good open-drain flag | Asserts high when VOUT is within 97–99% of target; 100µs delay filters transients; pulls low during fault or shutdown. |
| RT (15) | Oscillator frequency set | Resistor to AGND programs fSW from 0.5–5MHz; also sets phase offset in multiphase configurations. |
| SSTT (16) | Soft-start / tracking / temp monitor | 10µA current charges external cap for controlled VOUT ramp; post-startup voltage ≈ 4mV/°C for die temperature readback. |
| ITH (17) | Current limit and loop compensation | Compensation node referenced to AGND; voltage sets peak inductor current; external RC network stabilizes control loop. |
| FB/VOUT (18) | Feedback input / fixed-output sense | Regulates FB to 500mV (LTC3310J); for LTC3310J-1 variant, VOUT pin regulates to 1.0V internally (not applicable to LTC3310JV#TRMPBF). |
Key Features
| Feature | Design Value |
|---|---|
| Silent Switcher 2 Architecture | Integrated VIN–PGND and VIN–AGND bypass capacitors eliminate external high-frequency ceramic caps, reducing EMI radiated emissions below CISPR25 Class 5 limits. |
| 100% Duty Cycle Operation | Enables dropout regulation down to VIN ≈ VOUT + IOUT × RDS(ON)_PMOS, supporting ultra-low input scenarios like cold-crank automotive (2.25V min). |
| Configurable Multiphase Support | MODE/SYNC pin enables precise phase alignment across multiple LTC3310J devices, allowing scalable 20A+ solutions without external timing controllers. |
| Output Short-Circuit Recovery | Automatic soft-start re-initiation upon short removal: SSTT pulled to ~140mV above VFB triggers controlled VOUT ramp, preventing inrush and secondary faults. |
| Dual Current Limit Protection | Peak current limit (14.5–18.5A) + valley current limit (10–14A) prevent inductor saturation and MOSFET overstress during overload and short-circuit events. |
Applications
| Automotive ADAS Power Supply | FPGA Core Voltage Regulation |
|---|---|
Use Scenario: Powering vision processor SoCs in camera modules with strict EMI limits and wide input range (cold-crank to load-dump). IC Role / Device Role / Timing Role: Primary 1.2V/10A POL regulator with integrated EMI suppression and AEC-Q100 qualification. Use Value: Eliminates external EMI filters; maintains ±1% output accuracy across –40°C to 150°C; supports 2MHz switching for compact 100nH inductors. |
Use Scenario: Delivering tightly regulated 0.85V core voltage to Xilinx Kria KV260 with fast load transients (1A/µs). IC Role / Device Role / Timing Role: High-bandwidth current-mode buck controller with 35ns min on-time and remote sensing. Use Value: Achieves <20mV droop under 8A step; 100% duty cycle sustains regulation during low-VIN brownouts; PGOOD enables safe FPGA configuration sequencing. |
| Industrial PLC I/O Module | 5G Baseband Radio Supply |
Use Scenario: Generating isolated 3.3V/5A rail from 24V backplane via intermediate 5V bus in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: High-efficiency, thermally robust step-down stage with programmable frequency to avoid noise-sensitive bands. Use Value: 94% peak efficiency at 5A reduces heatsink requirements; 150°C junction rating enables convection-only cooling in sealed enclosures. |
Use Scenario: Providing clean, low-noise 1.8V supply to RF transceivers in massive MIMO active antenna units. IC Role / Device Role / Timing Role: Low-EMI POL regulator synchronized to baseband clock to suppress switching artifacts in adjacent RF bands. Use Value: MODE/SYNC pin locks switching edges to system clock, eliminating beat frequencies; radiated emissions stay >10dB below CISPR25 Class 5 peak limits. |
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 |
|---|---|---|---|
| TPS546B24RVFT | 6V max VIN, 12A rating, 0.6V ref, no integrated bypass caps, non-AEC-Q100 | Higher current, wider VIN, but lacks Silent Switcher 2 EMI performance and automotive qualification | Select for cost-sensitive industrial designs where EMI filtering can be added externally and temp range ≤125°C suffices. |
| MPM3695-100 | 16V max VIN, 10A, integrated inductor, 500mV ref, no temperature monitor or multiphase sync | Module-based solution with smaller footprint but lower efficiency at high load and no die temp telemetry | Select when board space is constrained and thermal monitoring is not required; avoid for automotive under-hood use due to 125°C max TJ. |
Compared with TPS546B24RVFT and MPM3695-100, the LTC3310JV#TRMPBF uniquely combines AEC-Q100 qualification, integrated EMI suppression, and die temperature visibility-making it the only choice for safety-critical automotive and thermally demanding industrial POL where reliability and spectral cleanliness are non-negotiable.
Availability
LTC3310JV#TRMPBF is available at Aetrix Electronics and suitable for automotive ADAS systems, industrial PLCs, 5G radio units, and FPGA-based edge AI accelerators requiring stable component supply across extended temperature and high-reliability lifecycles.
Supply support for LTC3310JV#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, communications, and automotive markets since 1965.
The LTC3310 family was designed specifically for high-current, low-EMI point-of-load regulation in automotive and industrial systems-emphasizing thermal resilience, functional safety readiness, and seamless integration into noise-sensitive signal chains.
FAQ
What is the maximum junction temperature rating for the LTC3310JV#TRMPBF?
The LTC3310JV#TRMPBF is rated for operation up to +150°C junction temperature and is AEC-Q100 qualified for automotive applications. This J-grade rating is confirmed in the Order Information table and Absolute Maximum Ratings section of the datasheet, with thermal resistance θJCbottom = 9°C/W enabling reliable high-power operation when the exposed PGND pad is properly soldered to PCB copper.
Does the LTC3310JV#TRMPBF support output voltage tracking during power-up?
Yes, the LTC3310JV#TRMPBF supports voltage tracking via its SSTT pin: during soft-start, the FB pin voltage actively tracks the rising voltage on SSTT, enabling precise sequencing with other rails. This behavior is explicitly documented in the Pin Functions and Operation sections, and is independent of the fixed-output LTC3310J-1 variant.
Can the LTC3310JV#TRMPBF be synchronized to an external clock source?
Yes, the LTC3310JV#TRMPBF supports external clock synchronization via the MODE/SYNC pin, accepting square-wave inputs from 0.5MHz to 2.25MHz. The internal PLL locks to the external signal's rising edge, and the device automatically adapts slope compensation-details are provided in the Synchronizing the Oscillator section of the datasheet Rev. F.
What is the purpose of the AGND pin on the LTC3310JV#TRMPBF?
The AGND pin on the LTC3310JV#TRMPBF serves as the Kelvin sense return for the feedback divider, enabling remote sensing to compensate for PCB trace voltage drops. It connects directly to the load-side ground and the bottom resistor of the FB divider, ensuring ±1% output accuracy even with up to ±100mV ground offset between IC and load-confirmed in the Voltage Regulation and Pin Functions sections.
How does the LTC3310JV#TRMPBF handle output short-circuit conditions?
Under output short-circuit, the LTC3310JV#TRMPBF activates dual protection: peak current limiting (14.5–18.5A) and valley current limiting (10–14A). Upon fault detection, SSTT is pulled low to ~140mV above VFB, triggering automatic soft-start recovery once the short is removed-fully detailed in the Output Short-Circuit Protection and Recovery section of the datasheet.
LTC3310JV#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- Silent Switcher®1
- Package/Case:
- 18-TFQFN Exposed Pad
- 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):
- 2.25V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 10A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 18-LQFN (3x3)
LTC3310JV#TRMPBF FAQ
1.How can I place an order for LTC3310JV#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3310JV#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 LTC3310JV#TRMPBF reliable?
The price and inventory of LTC3310JV#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3310JV#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC3310JV#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3310JV#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3310JV#TRMPBF?
LTC3310JV#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3310JV#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 LTC3310JV#TRMPBF?
For technical support, including LTC3310JV#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3310JV#TRMPBF requirements.
6.How does Aetrix verify that LTC3310JV#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC3310JV#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 LTC3310JV#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC3310JV#TRMPBF?
All LTC3310JV#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3310JV#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 LTC3310JV#TRMPBF part is unused and in its original packaging.
Return procedure for LTC3310JV#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC3310JV#TRMPBF 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…
