My Inquiry
My Account
Analog Devices Inc. LTC3310HV-1#TRMPBF
- Part No.:
- LTC3310HV-1#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 18-TFQFN Exposed Pad
- Datasheet:
-
LTC3310HV-1#TRMPBF.pdf
- Description:
- IC REG BUCK ADJ 10A 18LQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,689
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC3310HV-1#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, with fixed 1.0V output, ±1% accuracy over temperature, and AEC-Q100 Grade H (–40°C to +150°C junction) qualification for automotive power rails.
For engineers reviewing the LTC3310HV-1#TRMPBF datasheet, LTC3310HV-1#TRMPBF pinout, LTC3310HV-1#TRMPBF application, or LTC3310HV-1#TRMPBF equivalent, key selection criteria include its 10A capability in a 3mm × 3mm LQFN, 35ns minimum on-time, programmable switching frequency up to 5MHz, and integrated hot-loop bypass capacitors enabling ultralow EMI in space-constrained automotive and industrial POL systems.
Technical Context
The LTC3310HV-1#TRMPBF employs constant-frequency peak current mode control with internal 500mV reference (adjusted to 1.0V via internal resistor divider), enabling fast transient response and stable regulation under dynamic load steps. Its Silent Switcher 2 architecture integrates VIN-to-PGND and VIN-to-AGND bypass capacitors to minimize high-di/dt loop area and suppress radiated emissions without external layout compromises.
It supports pulse-skipping or forced continuous conduction mode via MODE/SYNC pin configuration, includes active voltage positioning (AVP) for optimized transient performance at 1.0V output, and features comprehensive protection: output overvoltage (106–112.5% VOUT), thermal shutdown, short-circuit recovery with soft-start reinitiation, and valley-current limiting to prevent inductor saturation during overload.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2.25V to 5.5V - supports wide-input automotive battery rails including cold-crank (≥2.25V) and post-regulated 3.3V/5V supplies. |
| VOUT | Fixed 1.000V ±1% - factory-trimmed internal feedback divider eliminates external resistors and improves accuracy vs. temperature. |
| Output Current | 10A continuous - sustained delivery enabled by low RDS(ON): 4.5mΩ NMOS / 16mΩ PMOS and thermally enhanced 3mm × 3mm LQFN with exposed PGND pad. |
| Switching Frequency | Programmable 0.5MHz–5MHz - set via RT-to-AGND resistor; default 2MHz with RT = 274kΩ enables compact magnetics and high PSRR. |
| Min On-Time | 35ns - enables high step-down ratios (e.g., 5V→1V at 2MHz) without pulse skipping, preserving regulation stability at light loads. |
| Shutdown Current | 1µA - ultra-low quiescent draw meets automotive standby requirements and extends battery life in always-on modules. |
| PGOOD Threshold | 97–99% of regulated VOUT - precise enable/disable signaling with 100µs delay filters noise while ensuring reliable system sequencing. |
Pinout & Package
Package: 18-lead 3mm × 3mm LQFN with exposed PGND pad (Pin 19), θJCbottom = 9°C/W, requiring soldered thermal connection to PCB ground plane for 150°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (1) | Enable input with precision threshold | 400mV rising-edge threshold with 60mV hysteresis; direct VIN tie disables shutdown; critical for controlled power-up sequencing. |
| AGND (2) | Remote sense ground reference | Kelvin connection point for FB divider low-side; compensates for up to ±100mV PCB ground offset between IC and load. |
| VIN (3,4,11,12) | Main input power supply | Four parallel pins reduce IR drop and inductance; must be short-wide routed and bypassed locally to PGND with low-ESR ceramics. |
| PGND (5,10,19) | Power ground return path | Exposed pad (Pin 19) is PGND - mandatory soldering to large copper pour with multiple vias for thermal and EMI performance. |
| SW (6–9) | Switch node outputs | Four paralleled SW pins connect directly to inductor; minimized trace length essential to preserve Silent Switcher 2 EMI advantage. |
| MODE/SYNC (13) | Frequency control & multiphase interface | Accepts external clock (0.5–2.25MHz) or outputs synchronized clock; configures pulse-skip vs. forced CCM operation. |
| PGOOD (14) | Open-drain power-good indicator | Pulled low when VOUT deviates >3% or during fault; 12Ω pull-down enables direct MCU GPIO interfacing without external resistor. |
| RT (15) | Oscillator frequency programming | Resistor to AGND sets fSW; 274kΩ yields 2MHz; enables precise timing control for EMI filtering and multi-phase interleaving. |
| SSTT (16) | Soft-start, tracking, die temperature monitor | 10µA current source for soft-start capacitor; tracks FB during startup; settles to ~4mV/°C voltage post-startup for thermal monitoring. |
| ITH (17) | Current limit and loop compensation node | Direct access to error amplifier output; connects to AGND via RC network for type-II/III compensation and current limit setting. |
| FB/VOUT (18) | Feedback input / fixed-output voltage sense | On LTC3310HV-1#TRMPBF, internal 1V divider replaces external resistors; FB pin internally tied to VOUT for fixed 1.0V regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Silent Switcher 2 Architecture | Integrated VIN–PGND and VIN–AGND bypass capacitors eliminate external high-frequency ceramic placement constraints and reduce radiated EMI by >30dB vs. SS1. |
| AEC-Q100 Grade H Qualification | Guaranteed operation from –40°C to +150°C junction temperature with full parametric validation - suitable for under-hood automotive applications. |
| Active Voltage Positioning (AVP) | 1.7–3.1mV/A load-line droop at 1.0V output improves transient response and reduces required output capacitance by up to 40% in FPGA core supplies. |
| Robust Short-Circuit Recovery | Automatic soft-start reinitiation triggered by PGOOD fault detection - no manual reset needed; prevents latch-up during intermittent shorts. |
| Configurable Multiphase Support | MODE/SYNC pin enables seamless 2-phase interleaving with <180° phase shift using identical LTC3310HV-1#TRMPBF units - doubles current capacity to 20A with reduced ripple. |
Applications
| Automotive ADAS Power Rail | Industrial PLC I/O Module |
|---|---|
|
Use Scenario: Powers image signal processor (ISP) and radar SoC cores in front-camera ECU with strict EMI limits per CISPR 25 Class 5. IC Role / Device Role / Timing Role: Primary 1.0V POL regulator delivering 10A peak current with <10mV ripple at 2MHz switching. Use Value: Silent Switcher 2 compliance eliminates need for external EMI filters, saving board space and BOM cost in compact camera housings. |
Use Scenario: Supplies 1.0V core voltage to ARM Cortex-M7 microcontroller and isolated CAN transceivers in DIN-rail mounted controller. IC Role / Device Role / Timing Role: High-reliability, thermally robust DC/DC stage operating continuously at 85°C ambient with derated 8A output. Use Value: AEC-Q100 Grade H rating ensures long-term stability and validated lifetime under thermal cycling stress typical of factory-floor environments. |
| FPGA Core Supply (Data Center) | 5G Small Cell Baseband |
|
Use Scenario: Delivers tightly regulated 1.0V to Xilinx Kintex UltraScale+ FPGA banks requiring fast load-step response and AVP support. IC Role / Device Role / Timing Role: Fixed-output buck converter with active voltage positioning and 35ns min-on-time for high-frequency transient suppression. Use Value: AVP reduces required bulk capacitance by 30% while maintaining <±25mV droop during 5A/µs load steps - lowers system cost and footprint. |
Use Scenario: Powers 1.0V analog front-end (AFE) and digital baseband ASIC in outdoor small cell radio unit with wide temperature range. IC Role / Device Role / Timing Role: High-efficiency, low-noise POL converter operating from 3.3V intermediate bus with synchronization to system clock. Use Value: MODE/SYNC pin enables deterministic 2MHz switching aligned to baseband timing, minimizing beat-frequency interference in sensitive RF sections. |
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 |
|---|---|---|---|
| TPS546D24A | 6V max VIN, 1.0V fixed output, 12A rating, but no integrated hot-loop caps; requires external VIN bypass for EMI control. | Higher current, lower thermal resistance, but lacks Silent Switcher 2 EMI performance - needs additional filtering in automotive designs. | Select if higher output current (12A) and lower RθJA are prioritized over EMI certification simplicity. |
| MPM3695-100 | 10A, 1.0V fixed, 2.7–6V VIN, integrated inductor; no AVP, no MODE/SYNC, no remote sensing (AGND). | Module-based solution with smaller footprint but fixed 6V VIN ceiling and no multiphase support - unsuitable for 5.5V automotive inputs. | Select for fastest time-to-market where board space is extreme constraint and EMI is less critical than integration level. |
Compared with TPS546D24A and MPM3695-100, the LTC3310HV-1#TRMPBF uniquely combines AEC-Q100 Grade H qualification, Silent Switcher 2 EMI performance, and AVP in a 3mm × 3mm package - making it optimal for thermally demanding, EMI-sensitive automotive and industrial 1.0V POL applications where reliability and regulatory compliance are non-negotiable.
Availability
LTC3310HV-1#TRMPBF is available at Aetrix Electronics and suitable for automotive ADAS systems, industrial PLCs, and 5G baseband power supplies requiring stable component supply, long lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for LTC3310HV-1#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 LTC3310HV-1#TRMPBF belongs to Analog Devices' Silent Switcher 2 power management portfolio, engineered specifically for high-current, low-EMI point-of-load conversion in automotive, industrial, and datacom applications where thermal robustness and regulatory compliance are critical.
FAQ
What is the maximum junction temperature specification for the LTC3310HV-1#TRMPBF?
The LTC3310HV-1#TRMPBF is qualified to AEC-Q100 Grade H with guaranteed operation from –40°C to +150°C junction temperature. Its thermal design leverages the 3mm × 3mm LQFN's low θJCbottom (9°C/W) and exposed PGND pad, enabling sustained 10A output at 85°C ambient when properly mounted to a 4-layer PCB with ≥4 thermal vias under the pad. Derating curves in the datasheet define safe operating area below 150°C.
Does the LTC3310HV-1#TRMPBF require external feedback resistors to set the 1.0V output?
No - the LTC3310HV-1#TRMPBF features an internal resistor divider that fixes the output to 1.000V ±1%, eliminating external FB resistors. Pin 18 functions as VOUT (not FB), and the internal 500mV reference is scaled 2× via on-die resistors. This improves accuracy, reduces component count, and avoids drift from external resistor tolerances or temperature coefficients.
How does the Silent Switcher 2 architecture in the LTC3310HV-1#TRMPBF reduce EMI compared to standard buck converters?
The LTC3310HV-1#TRMPBF integrates dedicated ceramic bypass capacitors between VIN and PGND, and VIN and AGND, inside the package. This minimizes high-di/dt loop area for both hot and return paths, suppressing common-mode EMI at the source. Measured CISPR 25 Class 5 radiated emissions show >30dB improvement over Silent Switcher 1 equivalents - enabling pass-fail compliance without external ferrite beads or shielded inductors.
Can the LTC3310HV-1#TRMPBF be synchronized to an external clock, and what is the supported frequency range?
Yes - the MODE/SYNC pin accepts an external square-wave clock from 0.5MHz to 2.25MHz for synchronization. When driven, the internal PLL locks to the external source within ~20µs, automatically adapting slope compensation and enforcing pulse-skipping mode. This enables deterministic switching alignment in multi-rail systems, reducing beat frequencies in sensitive RF or audio circuits powered by the LTC3310HV-1#TRMPBF.
What protection features does the LTC3310HV-1#TRMPBF include for automotive-grade reliability?
The LTC3310HV-1#TRMPBF includes output overvoltage protection (106–112.5% VOUT), thermal shutdown with hysteresis, valley-current limiting to prevent inductor saturation, short-circuit recovery with automatic soft-start reinitiation, and UVLO with 150mV hysteresis. All protections are fully characterized across –40°C to +150°C and validated per AEC-Q100 stress test conditions for automotive deployment.
LTC3310HV-1#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)
LTC3310HV-1#TRMPBF FAQ
1.How can I place an order for LTC3310HV-1#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3310HV-1#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 LTC3310HV-1#TRMPBF reliable?
The price and inventory of LTC3310HV-1#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3310HV-1#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC3310HV-1#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3310HV-1#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3310HV-1#TRMPBF?
LTC3310HV-1#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3310HV-1#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 LTC3310HV-1#TRMPBF?
For technical support, including LTC3310HV-1#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3310HV-1#TRMPBF requirements.
6.How does Aetrix verify that LTC3310HV-1#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC3310HV-1#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 LTC3310HV-1#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC3310HV-1#TRMPBF?
All LTC3310HV-1#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3310HV-1#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 LTC3310HV-1#TRMPBF part is unused and in its original packaging.
Return procedure for LTC3310HV-1#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC3310HV-1#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…
