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Analog Devices Inc. LT8364EMSE#WPBF
- Part No.:
- LT8364EMSE#WPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad
- Datasheet:
-
LT8364EMSE#WPBF.pdf
- Description:
- IC REG BST SEPIC ADJ 4A 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,467
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Product details
Overview
LT8364EMSE#WPBF from Analog Devices is a current-mode DC/DC converter IC with a 60V, 4A internal power switch, operating from 2.8V to 60V input. It supports boost, SEPIC, and inverting topologies via a single FBX feedback pin, delivers up to 48V output at 1A (VIN=24V), and achieves 9µA quiescent current in Burst Mode for battery-powered industrial sensors and automotive telematics.
For engineers reviewing the LT8364EMSE#WPBF datasheet, LT8364EMSE#WPBF pinout, LT8364EMSE#WPBF application, or LT8364EMSE#WPBF equivalent, key selection criteria include its AEC-Q100 qualification, programmable 300kHz–2MHz switching frequency, spread-spectrum EMI reduction, BIAS pin for efficiency optimization, and dual-mode (Burst/Pulse-Skip) operation control via SYNC/MODE pin.
Technical Context
The LT8364EMSE#WPBF implements fixed-frequency current-mode control with external RT resistor programming and dual error amplifiers-one active for positive outputs (1.60V reference), the other for negative outputs (–0.80V reference). Its architecture enables seamless topology reconfiguration without changing feedback network polarity.
It integrates frequency foldback during startup/faults, programmable soft-start via SS pin (2µA charge current), and intelligent INTVCC sourcing-automatically selecting between VIN and BIAS (4.4V ≤ BIAS ≤ VIN) to minimize input supply current. Protection includes overcurrent shutdown (7.5A trip), thermal shutdown (>170°C), and UVLO with 80mV hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8V to 60V - supports wide-range industrial rails, automotive cold-crank (6V), and telecom 48V systems. |
| Switch Rating | 60V, 4A - enables 48V boost conversion from 12V/24V inputs with margin for transients. |
| Quiescent Current | 9µA in Burst Mode - extends battery life in always-on sensor nodes and remote monitoring devices. |
| Switching Frequency | 300kHz to 2MHz - adjustable via RT pin; higher frequencies allow smaller magnetics and reduced EMI filter size. |
| Feedback Reference | +1.60V or –0.80V - single FBX pin supports both positive and negative output configurations without external op-amps. |
| Package | 16-lead MSOP (4 pins removed), exposed pad - θJA = 45°C/W; requires soldered PGND/GND pad for thermal performance and EMI control. |
| AEC-Q100 Grade | Grade E (–40°C to +125°C) - qualified for automotive infotainment, ADAS camera power, and body electronics. |
Pinout & Package
LT8364EMSE#WPBF uses the thermally enhanced 16-lead MSOP package (MSE16 variation with pins 2, 4, 15, and 16 removed), featuring an exposed PGND/GND pad (Pin 17) that must be soldered to PCB for thermal dissipation and low-impedance grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN/UVLO | Enable and undervoltage lockout input | 1.6V rising threshold with 80mV hysteresis; <0.2V reduces VIN current to <1µA for ultra-low-power shutdown. |
| VIN | Main input supply | Accepts 2.8V–60V; powers internal circuitry unless BIAS supplies INTVCC; requires local high-frequency bypassing. |
| INTVCC | Internal 3.2V regulator output | Must be bypassed with 1µF ceramic; not user-loadable; powered by VIN or BIAS depending on voltage conditions. |
| BIAS | Secondary input for INTVCC | Enables >90% efficiency improvement at light loads when 4.4V ≤ BIAS ≤ VIN (e.g., tie to VOUT in SEPIC). |
| VC | Error amplifier output | Connects to external compensation network (R-C-CE); sets peak switch current via transconductance (75 µA/V). |
| FBX | Topology-agnostic feedback input | Regulates to +1.60V (boost/SEPIC) or –0.80V (inverting); determines output polarity and voltage via resistor divider. |
| RT | Frequency programming input | Resistor to GND sets fSW from 300kHz to 2MHz; formula: RT(kΩ) = 51.2/fOSC(MHz) – 5.6. |
| SS | Soft-start timing input | Capacitor to GND controls inrush current ramp rate; 2µA constant charge current enables precise start-up control. |
| SYNC/MODE | Multi-function control pin | Selects Burst Mode (<0.14V), Pulse-Skip (float), Sync (external clock), or SSFM (≥1.7V or 100k-to-GND). |
| SW1/SW2 | Power switch output | 60V, 4A rated drain-source path; minimized trace area required to reduce radiated EMI. |
| PGND/GND | Power and signal ground | Exposed pad (Pin 17) serves as primary thermal path and low-inductance return for SW and input/output capacitors. |
Key Features
| Feature | Design Value |
|---|---|
| Single-pin topology selection | FBX pin auto-configures error amplifier for +1.60V (positive VOUT) or –0.80V (negative VOUT) regulation without external components. |
| Ultra-low IQ Burst Mode | 9µA quiescent current maintains regulation while keeping output ripple <15mV - critical for energy-harvesting and battery-backed systems. |
| Spread-spectrum EMI reduction | ±14% to ±28% frequency modulation (configurable via SYNC/MODE) lowers peak EMI by >10dB without adding filtering components. |
| Programmable UVLO hysteresis | Resistive divider on EN/UVLO sets precise turn-on (1.68V) and turn-off (1.60V) thresholds - prevents brownout oscillation in automotive 12V systems. |
| Thermally optimized package | MSOP-16 with exposed PGND pad (θJC = 10°C/W) enables 3W+ continuous power dissipation with minimal board area. |
Applications
| Automotive Camera Power Supply | Industrial Sensor Node DC-DC |
|---|---|
Use Scenario: Powers 5V/3.3V imaging modules in rear-view and surround-view cameras under cold-crank (6V) and load-dump (60V) conditions. IC Role / Device Role / Timing Role: Primary boost converter generating stable 5V rail from variable automotive battery; handles transient suppression via 60V switch rating. Use Value: AEC-Q100 qualification ensures reliability; Burst Mode extends runtime during vehicle sleep mode; SSFM meets CISPR-25 Class 5 EMI limits. | Use Scenario: Powers wireless LoRaWAN or NB-IoT sensor nodes with 10-year battery life requirements in remote infrastructure monitoring. IC Role / Device Role / Timing Role: High-efficiency step-up regulator converting 2xAA alkaline (1.8V–3.2V) to 3.3V system rail with minimal load current draw. Use Value: 9µA IQ enables >10-year shelf life; programmable soft-start prevents inrush-induced brownout; compact DFN/MSOP footprint saves PCB space. |
| Portable Medical Diagnostic Output | Telecom Line Card Bias Supply |
Use Scenario: Generates isolated ±15V rails for analog front-end amplifiers in handheld ultrasound or ECG devices using transformer-based SEPIC. IC Role / Device Role / Timing Role: Inverting/SEPIC controller providing negative output from single-cell Li-ion (3.0V–4.2V) input with tight regulation. Use Value: Single FBX pin simplifies design of bipolar supplies; BIAS pin improves efficiency by sourcing INTVCC from VOUT; low ripple preserves signal integrity. | Use Scenario: Supplies 12V bias to RF power amplifiers on 48V telecom line cards where input voltage varies from 36V–72V due to PoE or backup battery. IC Role / Device Role / Timing Role: Wide-input boost converter delivering regulated 12V at 2A with immunity to input transients and EMI constraints. Use Value: 60V switch withstands 72V surges; SYNC pin allows synchronization to system clock to avoid beat frequencies; thermal pad supports convection cooling only. |
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#PBF | Requires external MOSFETs; no integrated 4A switch; supports synchronous rectification and higher efficiency at >2A loads. | Better suited for high-current (>2A), high-efficiency (>95%) applications where board space allows discrete FET layout. | Choose LTC3789EMSE#PBF when output current exceeds 1.5A and thermal headroom is constrained; LT8364EMSE#WPBF is preferred for compact, integrated, low-IQ designs. |
| MAX20414ATPA/VY+ | 3.5A, 60V monolithic boost; lower IQ (2.5µA) but fixed 2.2MHz frequency; no SEPIC/inverting support; no SSFM or BIAS pin. | Optimized for ultra-small footprint and lowest possible standby power in consumer wearables, not automotive or industrial environments. | Select MAX20414ATPA/VY+ only for cost-sensitive, non-automotive applications requiring sub-3µA IQ and no topology flexibility; LT8364EMSE#WPBF remains superior for AEC-Q100, multi-topology, and EMI-critical use cases. |
Compared with LTC3789EMSE#PBF and MAX20414ATPA/VY+, the LT8364EMSE#WPBF uniquely combines AEC-Q100 qualification, integrated 4A/60V switch, triple-topology capability, and configurable low-EMI operation - making it the only choice for space-constrained, safety-aware, and EMI-regulated automotive and industrial power designs.
Availability
LT8364EMSE#WPBF is available at Aetrix Electronics and suitable for automotive camera power supplies, industrial sensor node DC-DC converters, portable medical diagnostic outputs, telecom line card bias supplies, and AEC-Q100-compliant embedded systems requiring stable component supply across extended temperature ranges.
Supply support for LT8364EMSE#WPBF 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.
The LT8364 product line delivers highly integrated, wide-input DC/DC controllers for demanding power applications where reliability, low quiescent current, and EMI compliance are critical - especially in automotive and portable instrumentation.
FAQ
What topology configurations does the LT8364EMSE#WPBF support?
The LT8364EMSE#WPBF supports boost, SEPIC, and inverting converter topologies using a single FBX feedback pin. Its dual internal error amplifiers automatically configure for +1.60V regulation (positive outputs) or –0.80V regulation (negative outputs), eliminating external op-amps or topology-specific components. This flexibility allows one LT8364EMSE#WPBF design to serve multiple voltage rail requirements across different subsystems without hardware changes.
How does the BIAS pin improve efficiency in the LT8364EMSE#WPBF?
The BIAS pin on the LT8364EMSE#WPBF allows the INTVCC regulator to draw current from a secondary supply (e.g., VOUT in SEPIC) instead of VIN when 4.4V ≤ BIAS ≤ VIN. This reduces input supply current by up to 90% at light loads, directly improving system-level efficiency - especially critical in battery-powered applications. For example, in a 24V-to-48V SEPIC, tying BIAS to VOUT cuts VIN current consumption significantly versus standard operation, extending operational lifetime of the LT8364EMSE#WPBF-powered system.
What is the purpose of the SYNC/MODE pin on the LT8364EMSE#WPBF?
The SYNC/MODE pin on the LT8364EMSE#WPBF provides five selectable operating modes: Burst Mode (<0.14V), Pulse-Skip (floating), External Clock Sync (square wave input), Pulse-Skip + Spread Spectrum (≥1.7V), or Burst + Spread Spectrum (100kΩ to GND). This enables designers to optimize trade-offs between light-load efficiency, EMI performance, and transient response - all without changing external components. The LT8364EMSE#WPBF's ability to dynamically adapt behavior via this single pin makes it uniquely versatile across diverse applications.
Does the LT8364EMSE#WPBF require external compensation components?
Yes, the LT8364EMSE#WPBF requires external compensation components connected to the VC pin to stabilize the control loop. A typical network includes a series RC and capacitor (e.g., 10kΩ + 1nF + 10nF) from VC to GND. The external compensation allows loop bandwidth optimization across wide input/output voltage ranges and varying switching frequencies (300kHz–2MHz), ensuring stability in boost, SEPIC, and inverting configurations. No internal compensation is provided - full design flexibility is retained via the VC pin interface.
Is the LT8364EMSE#WPBF pin-compatible with other members of the LT836x family?
No, the LT8364EMSE#WPBF is not pin-compatible with LT8361, LT8362, or LT8363 variants. While sharing functional similarities, each LT836x device has distinct pin assignments - for example, LT8364EMSE#WPBF places FBX and RT on dedicated pins with specific internal routing, whereas LT8362 uses different pinout and lacks the BIAS pin. Migration requires PCB layout revision. Always verify pin functions and package dimensions in the respective datasheets before substitution; the LT8364EMSE#WPBF must be used as specified in its own design documentation.
LT8364EMSE#WPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Step-Up, Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Boost, SEPIC
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.8V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 1.6V
- Voltage - Output (Max):
- 60V (Switch)
- Current - Output:
- 4A (Switch)
- Frequency - Switching:
- 300kHz ~ 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-MSOP-EP
LT8364EMSE#WPBF FAQ
1.How can I place an order for LT8364EMSE#WPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT8364EMSE#WPBF 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 LT8364EMSE#WPBF reliable?
The price and inventory of LT8364EMSE#WPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT8364EMSE#WPBF is usually 5 days.
3.What payment methods are accepted for LT8364EMSE#WPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT8364EMSE#WPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT8364EMSE#WPBF?
LT8364EMSE#WPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT8364EMSE#WPBF 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 LT8364EMSE#WPBF?
For technical support, including LT8364EMSE#WPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT8364EMSE#WPBF requirements.
6.How does Aetrix verify that LT8364EMSE#WPBF is sourced from the original manufacturer or authorized distributors?
All LT8364EMSE#WPBF 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 LT8364EMSE#WPBF meets industry standards.
7.What is the process for return or replacement of LT8364EMSE#WPBF?
All LT8364EMSE#WPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT8364EMSE#WPBF, 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 LT8364EMSE#WPBF part is unused and in its original packaging.
Return procedure for LT8364EMSE#WPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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