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Analog Devices Inc. LT8364IMSE#TRPBF
- Part No.:
- LT8364IMSE#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad
- Datasheet:
-
LT8364IMSE#TRPBF.pdf
- Description:
- IC REG BOOST SEPIC 4A 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,137
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Product details
Overview
LT8364IMSE#TRPBF from Analog Devices is a current-mode DC/DC converter IC with a 60V, 4A integrated power switch, supporting boost, SEPIC, and inverting topologies from 2.8V to 60V input. It delivers ultralow 9µA quiescent current in Burst Mode, maintains <15mV output ripple, and operates up to 2MHz switching frequency-ideal for automotive infotainment power rails and portable medical imaging subsystems.
For engineers reviewing the LT8364IMSE#TRPBF datasheet, LT8364IMSE#TRPBF pinout, LT8364IMSE#TRPBF application, or LT8364IMSE#TRPBF equivalent, key selection criteria include its single FBX pin enabling both positive/negative output programming, programmable UVLO via EN/UVLO, BIAS pin for efficiency optimization, and SYNC/MODE pin supporting Burst Mode, pulse-skip, synchronization, and spread-spectrum EMI reduction.
Technical Context
The LT8364IMSE#TRPBF employs fixed-frequency current-mode control with external RT resistor programming (300kHz–2MHz), internal error amplifiers optimized for ±0.8V/1.6V FBX reference thresholds depending on topology, and dual-path INTVCC regulation that dynamically selects between VIN and BIAS supply when 4.4V ≤ BIAS ≤ VIN. Its architecture integrates frequency foldback, soft-start with 2µA charge current, and overcurrent protection triggering at 7.5A switch discharge.
Operation modes are selected via the SYNC/MODE pin: ground or <0.14V enables low-ripple Burst Mode; floating enables pulse-skip; >1.7V enables pulse-skip with spread-spectrum modulation; and external clock input synchronizes switching while disabling Burst Mode. The IC includes thermal shutdown at >170°C junction temperature and undervoltage lockout with 80mV hysteresis on EN/UVLO.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8V to 60V - supports wide-range industrial and automotive battery inputs without pre-regulation |
| Quiescent Current (Burst Mode) | 9µA - enables multi-year battery life in always-on sensor nodes and telematics modules |
| Switch Rating | 60V, 4A - handles 48V telecom and 24V industrial bus transients with margin |
| FBX Reference Voltage | +1.60V (boost/SEPIC) or –0.80V (inverting) - single-pin topology selection eliminates external mode logic |
| Switching Frequency Range | 300kHz to 2MHz - allows EMI-sensitive designs (e.g., ADAS cameras) to avoid critical bands |
| Package Thermal Resistance | θJA = 45°C/W (MSOP) - enables 3W+ continuous output power with minimal heatsinking |
| Operating Junction Temp | –40°C to +125°C - qualified for under-hood automotive and industrial control environments |
Pinout & Package
The LT8364IMSE#TRPBF is housed in a thermally enhanced 16-lead MSOP package with four pins removed (MSE16 variation), featuring an exposed PGND/GND pad (Pin 17) that must be soldered to PCB for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN/UVLO | Enable and undervoltage detection input | Programmable UVLO threshold (1.6V turn-off, 1.68V turn-on) with 80mV hysteresis; <0.2V reduces VIN current to <1µA |
| VIN | Main input supply | Accepts 2.8V–60V; powers INTVCC unless BIAS is active; requires local high-frequency bypassing |
| INTVCC | Internal 3.2V regulator output | Supplies gate drivers and logic; must be bypassed with 1µF ceramic; not externally loaded |
| BIAS | Secondary input for INTVCC | Improves efficiency by sourcing INTVCC current when 4.4V ≤ BIAS ≤ VIN; tie to GND if unused |
| VC | Error amplifier output | Connects to external compensation network (R-C across VC–GND) for loop stability |
| FBX | Feedback input | Single pin for +1.6V (positive VOUT) or –0.8V (negative VOUT) regulation; controls frequency foldback during faults |
| RT | Frequency programming | Resistor to GND sets fSW: 165kΩ = 300kHz, 20kΩ = 2MHz per datasheet Table 1 |
| SS | Soft-start control | Capacitor to GND sets ramp rate; 2µA charge current; internal 220Ω pull-down discharges during fault |
| SYNC/MODE | Mode selection and sync input | Five configurations: Burst (<0.14V), Sync (external clock), Pulse-skip (float), SSFM (>1.7V), or Burst+SSFM (100k to GND) |
| SW1/SW2 | Power switch outputs | 60V, 4A internal MOSFET; minimize trace area to reduce EMI; connect to inductor/diode |
| PGND/GND | Power and signal ground | Exposed pad (Pin 17) is primary thermal path and low-impedance return; must be soldered to solid copper plane |
Key Features
| Feature | Design Value |
|---|---|
| Single FBX topology selection | Eliminates external mode-switching circuitry: +1.6V reference for boost/SEPIC, –0.8V for inverting configuration |
| Burst Mode with 9µA IQ | Maintains high light-load efficiency and <15mV ripple in battery-powered systems without compromising transient response |
| BIAS pin efficiency boost | Reduces VIN supply current by shifting INTVCC load to auxiliary rail (e.g., VOUT in SEPIC), improving full-load efficiency by ~2–3% |
| Spread-spectrum EMI reduction | 20% frequency modulation centered on programmed fSW (e.g., 2MHz → 1.6–2.4MHz) lowers peak radiated emissions by 10dB+ |
| Programmable UVLO with hysteresis | Enables precise system-level brown-out protection using resistive divider on EN/UVLO, with 80mV built-in hysteresis to prevent chatter |
Applications
| Automotive Infotainment Power | Portable Medical Imaging |
|---|---|
Use Scenario: Generating isolated 12V/5V rails from 12V car battery for LCD displays, audio DSPs, and USB hubs in head units. IC Role / Device Role / Timing Role: Primary non-isolated boost converter delivering regulated 12V at up to 1A with Burst Mode for standby operation. Use Value: 9µA quiescent current prevents battery drain during vehicle off-state; AEC-Q100 qualification ensures reliability in automotive temperature cycling. | Use Scenario: Powering CCD/CMOS image sensors and analog front-ends in handheld ultrasound or X-ray detectors. IC Role / Device Role / Timing Role: Inverting converter generating –5V or –12V bias from a 3.3V or 5V Li-ion battery supply. Use Value: Single FBX pin simplifies negative rail design; 2MHz capability enables compact magnetics; low noise supports sensitive analog signal chains. |
| Industrial 48V Telecom Supply | IoT Edge Sensor Node |
Use Scenario: Stepping up 24V industrial bus to 48V PoE++ or optical transceiver supply in factory automation gateways. IC Role / Device Role / Timing Role: High-voltage boost converter operating at 500kHz–1MHz with SYNC pin locked to system clock for EMI coherence. Use Value: 60V switch rating accommodates 24V bus transients; spread-spectrum mode suppresses harmonics near Ethernet frequency bands. | Use Scenario: Long-life battery-powered environmental sensor node requiring dual rails (3.3V MCU + –2.5V ADC reference). IC Role / Device Role / Timing Role: Dual-output converter: main boost for 3.3V, inverting branch for –2.5V reference, both controlled via shared FBX and RT. Use Value: Ultralow 9µA IQ extends 10-year battery life; programmable soft-start prevents inrush into capacitive loads during wake-up events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DC/DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC3789EMSE#TRPBF | Requires external MOSFETs; no integrated 4A switch; supports synchronous rectification | Better suited for >5A output or higher efficiency at full load; lacks Burst Mode IQ advantage | Select when output current exceeds 4A or when synchronous FET control is required for >95% efficiency |
| MAX20077ATCB/VY+ | Integrated 60V/2.5A switch; fixed 2.2MHz frequency; no BIAS pin or spread-spectrum | Smaller solution size but limited to 2.5A; no programmable UVLO or topology flexibility | Select for space-constrained 2.5A applications where fixed frequency and simplicity outweigh IQ and feature flexibility |
Compared with LTC3789EMSE#TRPBF and MAX20077ATCB/VY+, the LT8364IMSE#TRPBF uniquely combines integrated 4A/60V switching, ultralow 9µA Burst Mode IQ, single-pin topology selection, and spread-spectrum EMI reduction-making it optimal for battery-sensitive, multi-rail, and automotive-grade designs where component count and standby power are critical.
Availability
LT8364IMSE#TRPBF is available at Aetrix Electronics and suitable for automotive infotainment, portable medical imaging, industrial 48V telecom, IoT edge sensor nodes, and industrial control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LT8364IMSE#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, communications, and automotive markets.
The LT8364 product line delivers highly integrated, wide-input DC/DC converters with flexible topology support and ultra-low quiescent current-designed specifically for automotive, industrial, and portable equipment where input voltage range, efficiency at light load, and EMI compliance are critical.
FAQ
What is the maximum output current achievable with the LT8364IMSE#TRPBF in boost configuration?
The LT8364IMSE#TRPBF integrates a 60V, 4A power switch with typical RDS(ON) of 100mΩ. In boost configuration with proper thermal management (exposed pad soldered, θJA = 45°C/W), it reliably delivers up to 1.2A at 48V output from 12V input, and up to 640mA at 48V from 8V input as shown in the front-page application. Peak switch current limit is 4A (min), with overcurrent protection triggering at 7.5A.
Does the LT8364IMSE#TRPBF support negative output voltages, and how is polarity selected?
Yes, the LT8364IMSE#TRPBF supports negative output voltages via inverting topology. Polarity is selected automatically by the FBX pin voltage: when FBX is pulled below 0V (e.g., via resistor divider to negative rail), the internal –0.80V reference activates and amplifier A2 enables non-inverting control. No external mode pins or configuration registers are needed-the same LT8364IMSE#TRPBF part number supports both positive and negative outputs.
How does the BIAS pin improve efficiency in the LT8364IMSE#TRPBF, and what voltage range is valid?
The BIAS pin improves efficiency by supplying the INTVCC regulator from an auxiliary source instead of VIN, reducing input supply current. It is valid when 4.4V ≤ BIAS ≤ VIN; within this range, the LT8364IMSE#TRPBF automatically selects BIAS for INTVCC. For example, in a SEPIC design where VOUT > VIN, connecting BIAS to VOUT cuts VIN current by ~1.2mA at full load-directly measurable in the Active Mode quiescent current spec (22µA vs 1200µA).
Can the LT8364IMSE#TRPBF be synchronized to an external clock, and what are the voltage requirements?
Yes, the LT8364IMSE#TRPBF can be synchronized to an external clock via the SYNC/MODE pin. The input must be a square wave with 20–80% duty cycle, valley <0.4V and peak >1.7V (up to 6V). When synchronized, the LT8364IMSE#TRPBF disables Burst Mode and operates in pulse-skip mode aligned to the external clock, enabling deterministic EMI reduction in systems with multiple switching regulators.
What package type and thermal characteristics apply to the LT8364IMSE#TRPBF?
The LT8364IMSE#TRPBF uses a 16-lead plastic MSOP package with four pins removed (MSE16 variation), featuring an exposed PGND/GND pad (Pin 17). Its thermal resistance is θJA = 45°C/W and θJC = 10°C/W. To achieve rated performance, the exposed pad must be soldered to a continuous PCB copper ground plane-failure to do so degrades thermal performance and may trigger overtemperature shutdown above 125°C ambient.
LT8364IMSE#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost, SEPIC
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.8V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- 60V (Switch)
- Current - Output:
- 4A (Switch)
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-MSOP-EP
LT8364IMSE#TRPBF FAQ
1.How can I place an order for LT8364IMSE#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT8364IMSE#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 LT8364IMSE#TRPBF reliable?
The price and inventory of LT8364IMSE#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT8364IMSE#TRPBF is usually 5 days.
3.What payment methods are accepted for LT8364IMSE#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT8364IMSE#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT8364IMSE#TRPBF?
LT8364IMSE#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT8364IMSE#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 LT8364IMSE#TRPBF?
For technical support, including LT8364IMSE#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT8364IMSE#TRPBF requirements.
6.How does Aetrix verify that LT8364IMSE#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT8364IMSE#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 LT8364IMSE#TRPBF meets industry standards.
7.What is the process for return or replacement of LT8364IMSE#TRPBF?
All LT8364IMSE#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT8364IMSE#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 LT8364IMSE#TRPBF part is unused and in its original packaging.
Return procedure for LT8364IMSE#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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