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Analog Devices Inc. LT8364HMSE#TRPBF
- Part No.:
- LT8364HMSE#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad
- Datasheet:
-
LT8364HMSE#TRPBF.pdf
- Description:
- IC REG BOOST SEPIC 4A 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,541
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Product details
Overview
LT8364HMSE#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 up to 48V output at 1A (VIN=24V), operates down to 9µA quiescent current in Burst Mode, and maintains <15mV output ripple - ideal for automotive infotainment power rails and portable medical imaging subsystems.
For engineers reviewing the LT8364HMSE#TRPBF datasheet, LT8364HMSE#TRPBF pinout, LT8364HMSE#TRPBF application, or LT8364HMSE#TRPBF equivalent, key selection criteria include its AEC-Q100 qualification, –40°C to 150°C junction temperature rating, single FBX-pin dual-polarity feedback, programmable 300kHz–2MHz switching, and BIAS-pin efficiency optimization for high-reliability industrial and automotive power conversion.
Technical Context
The LT8364HMSE#TRPBF implements fixed-frequency current-mode control with external RT-resistor programmability and SYNC/MODE pin-selectable operation modes: Burst Mode (9µA IQ), pulse-skip, external clock synchronization, and spread-spectrum modulation. Its dual-error-amplifier architecture enables seamless transition between +1.6V (boost/SEPIC) and –0.8V (inverting) FBX reference voltages without hardware change.
Thermal performance is defined by θJA = 45°C/W and θJC = 10°C/W in the 16-lead MSOP package with exposed PGND/GND pad. Protection includes overcurrent limiting (7.5A peak), thermal shutdown (>170°C), UVLO with 80mV hysteresis, and frequency foldback during overload - all verified across the full –40°C to 150°C operating junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8V to 60V - supports wide-range battery inputs including 12V, 24V, and 48V automotive systems without pre-regulation. |
| Switch Rating | 60V VSW, 4A continuous - enables 48V boost output at ≥1A from 24V input with margin for transients. |
| Quiescent Current | 9µA in Burst Mode - sustains >90% efficiency at 1mA load, critical for always-on vehicle ECU modules. |
| Switching Frequency | 300kHz to 2MHz (RT-programmable) - allows EMI-sensitive designs to avoid AM band or CISPR-25 noise peaks. |
| Feedback Reference | +1.6V (positive VOUT) or –0.8V (negative VOUT) - single FBX pin eliminates topology-specific component changes. |
| Operating Temperature | –40°C to 150°C junction - qualified per AEC-Q100 Grade H, suitable for under-hood and engine-control applications. |
| Package | 16-lead MSOP with 4 pins removed, exposed PGND/GND pad - thermally enhanced layout supports ≥3W dissipation at TA = 85°C. |
Pinout & Package
LT8364HMSE#TRPBF is housed in a thermally enhanced 16-lead plastic MSOP package (MSE variant) with four pins removed (pins 2, 4, 15, and 16 are NC). The exposed pad (Pin 17) is electrically connected to PGND and GND and must be soldered to a PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN/UVLO | Enable / Undervoltage Lockout Input | Logic-controlled startup; 1.6V rising threshold with 80mV hysteresis enables precise system-level brownout protection. |
| VIN | Main Input Supply | Accepts 2.8V–60V; powers internal circuitry unless BIAS supplies INTVCC - requires local 10µF ceramic bypass. |
| 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 | Accepts 4.4V–VIN to offload INTVCC current from VIN, improving efficiency in SEPIC or high-VOUT/VIN ratio designs. |
| VC | Error Amplifier Output | Connects to external compensation network (R-C-CE); sets loop bandwidth and stability across input/output ranges. |
| FBX | Feedback Input | Single pin supports +1.6V (boost/SEPIC) or –0.8V (inverting) regulation - eliminates topology-specific feedback networks. |
| RT | Frequency Programming | Resistor-to-GND sets fSW from 300kHz to 2MHz; enables EMI tuning and transformer size optimization. |
| SS | Soft-Start Control | Capacitor-to-GND controls inrush current ramp rate; 2µA charge current enables predictable startup timing. |
| SYNC/MODE | Mode Selection & Clock Sync | Five configurations: Burst, pulse-skip, sync, SSFM, or hybrid - selects trade-off between IQ, EMI, and regulation accuracy. |
| SW1/SW2 | Power Switch Outputs | 60V, 4A NMOS drain/source terminals - low RDS(ON) (100mΩ) minimizes conduction loss at full load. |
| PGND/GND | Power & Signal Ground | Exposed pad (Pin 17) is primary thermal path and low-impedance return for high di/dt currents - must be solidly soldered. |
Key Features
| Feature | Design Value |
|---|---|
| Burst Mode Operation | 9µA quiescent current with <15mV output ripple - extends battery life in always-on automotive sensors without compromising noise performance. |
| Single-Pin Dual-Polarity Feedback | FBX accepts either +1.6V or –0.8V reference - enables identical PCB layout for positive or negative output converters, reducing design iterations. |
| Spread Spectrum Modulation | ±14% to ±28% frequency deviation (RT-dependent) - reduces peak EMI by >10dB without filter redesign or shielding. |
| Programmable UVLO | Resistive divider on EN/UVLO sets turn-on/off thresholds with 80mV hysteresis - ensures clean power sequencing in multi-rail systems. |
| Thermal Enhancement | θJC = 10°C/W with soldered exposed pad - supports 3W continuous dissipation at 85°C ambient, enabling compact heatsink-free layouts. |
Applications
| Automotive Infotainment Power | Portable Medical Imaging |
|---|---|
|
Use Scenario: Generating isolated 48V rail for CCD/CMOS image sensor bias in handheld ultrasound devices. IC Role / Device Role / Timing Role: Primary DC/DC controller managing boost conversion from 3.7V Li-ion battery to regulated 48V output with soft-start and fault protection. Use Value: 9µA Burst Mode IQ extends battery runtime beyond 8 hours; programmable fSW avoids interference with RF front-end receivers. |
Use Scenario: Providing stable ±15V analog supply for precision ADC drivers in portable X-ray detector modules. IC Role / Device Role / Timing Role: Inverting converter generating –15V from 12V intermediate rail, using FBX's –0.8V reference for tight regulation. Use Value: Single FBX pin eliminates separate inverting controller; BIAS pin improves efficiency by sourcing INTVCC from 12V rail instead of 3.7V battery. |
| Industrial PLC I/O Module | Telecom Remote Radio Unit |
|
Use Scenario: Powering isolated 24V fieldbus interface circuits in harsh factory environments with wide input voltage swings. IC Role / Device Role / Timing Role: SEPIC converter maintaining regulation during 9V–36V input transients, leveraging 60V switch rating and robust UVLO. Use Value: AEC-Q100 Grade H qualification ensures reliability at 150°C junction; exposed pad thermal path sustains operation without forced air cooling. |
Use Scenario: Generating 28V auxiliary supply for GaN PA bias in outdoor 5G small cell radios exposed to temperature extremes. IC Role / Device Role / Timing Role: High-efficiency boost converter synchronized to system clock via SYNC/MODE pin to suppress switching noise in sensitive RF bands. Use Value: External clock sync eliminates beat frequencies; SSFM mode reduces conducted EMI to meet FCC Part 15 Class B limits without added ferrites. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DC/DC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC3780EMSE#TRPBF | 4-switch synchronous buck-boost controller; no integrated switch; requires external MOSFETs. | Higher efficiency at >3A loads but larger solution size; lacks Burst Mode IQ <10µA. | Select when >95% efficiency at 5A is required and board space permits discrete FETs and gate drivers. |
| LT8330EMSE#TRPBF | 60V, 1.5A monolithic boost/SEPIC/inverting converter; lower current rating; same FBX architecture. | Lower cost and smaller footprint but insufficient for >600mA 48V outputs; not AEC-Q100 qualified. | Select for cost-sensitive consumer electronics where 150°C operation and automotive qualification are unnecessary. |
Compared with LTC3780EMSE#TRPBF and LT8330EMSE#TRPBF, the LT8364HMSE#TRPBF uniquely combines integrated 4A/60V switching, AEC-Q100 Grade H qualification, and sub-10µA Burst Mode IQ - making it the only option for compact, high-reliability 1A+ boost/SEPIC/inverting power in automotive and industrial edge nodes.
Availability
LT8364HMSE#TRPBF is available at Aetrix Electronics and suitable for automotive infotainment systems, portable medical imaging devices, industrial PLC I/O modules, and telecom remote radio units requiring stable component supply with guaranteed long-term availability.
Supply support for LT8364HMSE#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 industrial, automotive, communications, and healthcare markets since 1965.
The LT8364 belongs to Analog Devices' Power by Linear™ monolithic DC/DC converter family, designed specifically for high-voltage, wide-input industrial and automotive power conversion where reliability, low IQ, and topology flexibility are critical.
FAQ
What is the maximum junction temperature rating for the LT8364HMSE#TRPBF?
The LT8364HMSE#TRPBF is rated for operation from –40°C to 150°C junction temperature and is AEC-Q100 qualified for automotive Grade H. Thermal shutdown activates above 170°C, and the package's θJC = 10°C/W enables reliable operation at full load in sealed enclosures without active cooling when the exposed pad is properly soldered.
How does the FBX pin support both positive and negative output configurations in the LT8364HMSE#TRPBF?
The LT8364HMSE#TRPBF uses dual internal error amplifiers: one referenced to +1.6V for boost/SEPIC (positive VOUT) and another to –0.8V for inverting (negative VOUT). The FBX pin automatically selects the appropriate amplifier based on whether the feedback divider pulls it above or below 0V - enabling topology reconfiguration without changing the IC or PCB layout.
Can the LT8364HMSE#TRPBF synchronize to an external clock while operating in Burst Mode?
No - when the SYNC/MODE pin is driven by an external clock, the LT8364HMSE#TRPBF disables Burst Mode and operates in pulse-skip mode to maintain regulation alignment with the external clock. Burst Mode is only active when SYNC/MODE is tied <0.14V (e.g., grounded) or configured with a 100kΩ resistor to GND for hybrid Burst/SSFM operation.
What is the purpose of the BIAS pin on the LT8364HMSE#TRPBF, and how should it be used?
The BIAS pin on the LT8364HMSE#TRPBF supplies the INTVCC regulator when 4.4V ≤ BIAS ≤ VIN, reducing VIN current draw and improving overall efficiency - especially beneficial in SEPIC designs where VOUT < VIN. If unused, tie BIAS to GND; if used, bypass with a local 1µF ceramic capacitor to minimize noise coupling into the INTVCC rail.
Is the LT8364HMSE#TRPBF pin-compatible with other variants in the LT8364 family?
Yes - all LT8364 variants (E/I/H grades, MSE/DE packages) share identical pinouts and footprints. The LT8364HMSE#TRPBF uses the same 16-lead MSOP package with four pins removed as LT8364EMSE#TRPBF and LT8364IMSE#TRPBF, allowing drop-in replacement for higher temperature requirements without PCB redesign.
LT8364HMSE#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 ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-MSOP-EP
LT8364HMSE#TRPBF FAQ
1.How can I place an order for LT8364HMSE#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT8364HMSE#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 LT8364HMSE#TRPBF reliable?
The price and inventory of LT8364HMSE#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT8364HMSE#TRPBF is usually 5 days.
3.What payment methods are accepted for LT8364HMSE#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT8364HMSE#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT8364HMSE#TRPBF?
LT8364HMSE#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT8364HMSE#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 LT8364HMSE#TRPBF?
For technical support, including LT8364HMSE#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT8364HMSE#TRPBF requirements.
6.How does Aetrix verify that LT8364HMSE#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT8364HMSE#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 LT8364HMSE#TRPBF meets industry standards.
7.What is the process for return or replacement of LT8364HMSE#TRPBF?
All LT8364HMSE#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT8364HMSE#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 LT8364HMSE#TRPBF part is unused and in its original packaging.
Return procedure for LT8364HMSE#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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