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Analog Devices Inc. LT8362IMSE#TRPBF
- Part No.:
- LT8362IMSE#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad
- Datasheet:
-
LT8362IMSE#TRPBF.pdf
- Description:
- IC REG BOOST SEPIC 2A 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,330
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Product details
Overview
LT8362IMSE#TRPBF from Analog Devices is a current-mode DC/DC converter IC with a 60V, 2A 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 features programmable 300kHz–2MHz switching frequency and external synchronization capability - used in automotive infotainment power rails and portable medical imaging subsystems.
For engineers reviewing the LT8362IMSE#TRPBF datasheet, LT8362IMSE#TRPBF pinout, LT8362IMSE#TRPBF application, or LT8362IMSE#TRPBF equivalent, key selection criteria include its single FBX pin enabling both positive/negative output programming, BIAS pin for efficiency optimization, spread-spectrum EMI reduction, and AEC-Q100 qualification for automotive-grade reliability.
Technical Context
The LT8362IMSE#TRPBF implements fixed-frequency current-mode control with internal slope compensation, enabling stable operation across wide duty-cycle ranges in CCM and DCM. Its dual error amplifier architecture (A1 active for boost/SEPIC, A2 for inverting) responds to FBX voltage referenced to either +1.60V or –0.80V, allowing topology-agnostic feedback without external reconfiguration.
Switching behavior is dynamically managed via the SYNC/MODE pin: it supports five distinct operating modes - Burst Mode (<0.14V), pulse-skipping (floating), synchronized pulse-skip (external clock), Burst+SSFM (100kΩ-to-GND), and pulse-skip+SSFM (>1.7V) - each altering light-load efficiency, EMI profile, and regulation fidelity without changing circuit layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8V to 60V - supports direct battery connection in 12V/24V/48V automotive and industrial systems without pre-regulation. |
| Switch Rating | 60V, 2A - enables 48V boost outputs at ≥320mA from 12V input, and robust fault tolerance against load-dump transients. |
| Quiescent Current | 9µA in Burst Mode - sustains >10-year battery life in always-on telematics modules with microamp-level standby draw. |
| Switching Frequency | 300kHz to 2MHz (RT-programmable) - allows trade-off between inductor size (higher fSW → smaller L) and conduction loss (lower fSW → higher efficiency at heavy loads). |
| Feedback Reference | +1.60V (boost/SEPIC) or –0.80V (inverting) - eliminates need for external level-shifting circuitry when generating negative rails from positive inputs. |
| Package Thermal Resistance | θJA = 45°C/W (MSOP-16) - enables 2.5W continuous power dissipation with standard 2-layer PCB and 1-in² copper pour under exposed pad. |
| Operating Junction Temp | –40°C to 125°C - qualified per AEC-Q100 Grade I, suitable for under-hood and engine-control module environments. |
Pinout & Package
LT8362IMSE#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 integrity. Package dimensions: 4.0mm × 3.0mm × 0.85mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN/UVLO (Pin 1) | Enable / Input Undervoltage Lockout | Logic-controlled shutdown with 1.6V turn-on threshold and 80mV hysteresis; enables programmable system-level brownout protection via resistor divider. |
| VIN (Pin 2) | Main Input Supply | Primary power path for internal regulator and switch; requires local 10µF ceramic bypass placed adjacent to pin and exposed pad. |
| INTVCC (Pin 3) | Internal 3.2V Regulator Output | Fixed 3.2V supply for gate drivers and logic; must be bypassed with 1µF ceramic capacitor - no external loading permitted. |
| NC (Pin 4) | No Internal Connection | Unbonded die pad; must remain unconnected and unrouted on PCB. |
| BIAS (Pin 5) | Secondary Input for INTVCC | Accepts 4.4V–VIN to source INTVCC current, reducing VIN load and improving full-load efficiency by up to 3% in SEPIC configurations. |
| VC (Pin 6) | Error Amplifier Output | Connects to external RC compensation network; sets loop bandwidth and phase margin for stability across input/output combinations. |
| SW1/SW2 (Pins 7,8) | Power Switch Drain Terminals | Parallel-connected 60V/2A MOSFET drains; minimized trace area required to suppress radiated EMI during high di/dt switching. |
| SYNC/MODE (Pin 9) | Mode Selection & Clock Input | Five-state interface: GND = Burst Mode; float = pulse-skip; >1.7V = pulse-skip+SSFM; external clock = sync+pulse-skip; 100kΩ-to-GND = Burst+SSFM. |
| SS (Pin 10) | Soft-Start Control | 2µA constant-current charge pin; capacitor value sets inrush current ramp rate and prevents inductor saturation at startup. |
| RT (Pin 11) | Frequency Programming | Resistor-to-GND sets switching frequency from 300kHz to 2MHz using RT = 51.2/fOSC – 5.6 (kΩ, fOSC in MHz). |
| FBX (Pin 12) | Topology-Agnostic Feedback | Sense node for +1.60V (positive VOUT) or –0.80V (negative VOUT); regulates output regardless of converter configuration. |
| PGND/GND (Pin 17) | Power & Signal Ground | Exposed thermal pad tied to internal PGND and signal GND; mandatory solder connection to ≥1-in² internal/external ground plane for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Single FBX Pin Topology Flexibility | Eliminates external op-amps or switches when reconfiguring between boost, SEPIC, and inverting outputs - reduces BOM count and layout complexity. |
| Burst Mode with 9µA IQ | Maintains regulation while drawing less than typical coin-cell self-discharge current, enabling multi-year operation in battery-backed data loggers. |
| Spread Spectrum Frequency Modulation | Reduces peak EMI by >10dB across 150kHz–1GHz range without adding filtering components - simplifies EMC certification for automotive modules. |
| Programmable UVLO Threshold | Allows precise system-level brownout response (e.g., disable at 9.2V for 12V lead-acid battery) using two resistors - avoids premature shutdown during cranking pulses. |
| Thermally Enhanced MSOP Package | Exposes 100% of die bottom via soldered pad, achieving 45°C/W θJA - enables 2.5× higher continuous power vs. standard MSOP in same footprint. |
| AEC-Q100 Qualified | Validated for automotive Grade I (–40°C to +125°C), including HTOL, TC, and ESD testing - meets functional safety requirements for ASIL-B subsystems. |
Applications
| Automotive Infotainment Power | Portable Medical Imaging |
|---|---|
Use Scenario: Generating isolated ±15V rails for CCD sensor bias and analog front-end amplifiers in handheld ultrasound probes. IC Role / Device Role / Timing Role: Inverting converter delivering –15V @ 100mA from 3.7V Li-ion battery, with soft-start limiting inrush into high-capacitance sensor arrays. Use Value: 9µA Burst Mode IQ extends probe runtime beyond 8 hours; SSFM ensures clean RF environment for echo signal acquisition without added shielding. |
Use Scenario: Boosting 12V vehicle battery to 48V for X-ray detector bias supply in mobile diagnostic carts. IC Role / Device Role / Timing Role: 2MHz boost converter with RT = 20kΩ, delivering 48V @ 320mA with <15mV ripple and thermal shutdown at 150°C junction. Use Value: 60V switch rating withstands 120V load-dump transients; AEC-Q100 qualification guarantees operation during engine start-stop cycles. |
| Industrial Sensor Transmitter | Telecom Remote Radio Unit |
Use Scenario: Powering 4–20mA loop-powered pressure transmitters with HART modulation from 24V DC supply. IC Role / Device Role / Timing Role: SEPIC converter maintaining regulated 5V output despite input dips to 18V during line faults, using BIAS pin connected to output for efficiency. Use Value: Programmable UVLO prevents false resets during transient brownouts; 300kHz switching minimizes conducted noise coupling into analog signal paths. |
Use Scenario: Generating 12V auxiliary rail for FPGA configuration and clock buffers in outdoor 5G small cells powered by PoE++. IC Role / Device Role / Timing Role: Synchronized boost converter locked to 1.25MHz system clock via SYNC pin, eliminating beat frequencies with baseband processing clocks. Use Value: Pulse-skip+SSFM mode reduces EMI at critical 1.25MHz harmonic; 125°C operation ensures reliability in sealed enclosures with no forced air cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DC/DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT8361IMSE#TRPBF | Same pinout and topology support, but 1.5A/40V switch and 12µA IQ - lower power handling and higher quiescent current. | Not suitable for 48V boost at >250mA or 60V transient environments; limited to lower-power industrial sensors. | Select only if output current ≤150mA and input transients <40V are guaranteed. |
| TPS61178RVEL | 5.5V max input, 2.2A/20V switch, 15µA IQ, no inverting/SEPIC support - lacks topology flexibility and automotive temperature range. | Restricted to single-cell battery-powered consumer devices; cannot replace LT8362IMSE#TRPBF in automotive or wide-input industrial use cases. | Consider only for cost-sensitive, low-voltage portable electronics where AEC-Q100 and 60V rating are unnecessary. |
Compared with LT8362IMSE#TRPBF, LT8361IMSE#TRPBF trades off voltage/current capability for slightly lower cost, while TPS61178RVEL abandons automotive robustness and topology versatility entirely - making LT8362IMSE#TRPBF the sole choice for AEC-Q100-compliant, multi-topology, 60V-input designs requiring <10µA standby.
Availability
LT8362IMSE#TRPBF is available at Aetrix Electronics and suitable for automotive infotainment power supplies, portable medical imaging subsystems, and industrial sensor transmitters requiring stable component supply across extended temperature and long product lifecycles.
Supply support for LT8362IMSE#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, and automotive electronics markets.
The LT8362 belongs to Analog Devices' Power by Linear™ family of monolithic DC/DC converters, engineered specifically for high-reliability, wide-input automotive and industrial power conversion where efficiency, EMI control, and thermal resilience are critical.
FAQ
What is the maximum output voltage achievable with LT8362IMSE#TRPBF in boost configuration?
The LT8362IMSE#TRPBF supports output voltages up to 60V in boost mode, constrained by its 60V switch rating and internal overvoltage protection. Practical limits depend on external components: using a 100V-rated Schottky diode and 63V output capacitor enables reliable 48V operation at 320mA from 12V input, as validated in the front-page application circuit. Exceeding 60V risks switch breakdown and is not supported.
How does the BIAS pin improve efficiency in LT8362IMSE#TRPBF designs?
The BIAS pin on LT8362IMSE#TRPBF supplies the INTVCC regulator when 4.4V ≤ BIAS ≤ VIN, diverting up to 1.2mA of bias current away from the main VIN rail. In SEPIC applications where VOUT ≈ VIN, connecting BIAS to VOUT reduces total input current by ~2–3%, directly improving full-load efficiency - confirmed by efficiency plots in the datasheet Figure TA01b at 24V input.
Can LT8362IMSE#TRPBF operate in discontinuous conduction mode (DCM)?
Yes, LT8362IMSE#TRPBF supports DCM operation, enabled automatically when load current drops below the critical conduction threshold. Its minimum on-time (70ns typ.) and off-time (50ns typ.) allow stable DCM down to <1mA output, which is essential for Burst Mode efficiency and eliminates right-half-plane zero issues present in CCM - verified in Typical Performance Characteristics Figure G08/G09.
What is the purpose of the NC pin on LT8362IMSE#TRPBF?
The NC (No Connection) pin on LT8362IMSE#TRPBF is an unconnected die pad with no internal bond wire or circuitry. It must remain electrically floating - neither tied to GND nor routed - to prevent parasitic coupling or thermal stress. This pin exists due to the MSOP-16 package variant (MSE16) where four pins are physically removed from the standard 16-lead outline.
Is LT8362IMSE#TRPBF pin-compatible with other LT836x variants?
Yes, LT8362IMSE#TRPBF shares identical pinout and package (16-lead MSOP with 4 pins removed) with all LT836x IMSE-grade variants (e.g., LT8361IMSE#TRPBF, LT8364IMSE#TRPBF). However, electrical differences - such as switch current limit (2A vs. 1.5A), input voltage range (60V vs. 40V), and quiescent current (9µA vs. 12µA) - require schematic review before substitution.
LT8362IMSE#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:
- 2A (Switch)
- Frequency - Switching:
- 300kHz ~ 2MHz
- Synchronous Rectifier:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-MSOP-EP
LT8362IMSE#TRPBF FAQ
1.How can I place an order for LT8362IMSE#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT8362IMSE#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 LT8362IMSE#TRPBF reliable?
The price and inventory of LT8362IMSE#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT8362IMSE#TRPBF is usually 5 days.
3.What payment methods are accepted for LT8362IMSE#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT8362IMSE#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT8362IMSE#TRPBF?
LT8362IMSE#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT8362IMSE#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 LT8362IMSE#TRPBF?
For technical support, including LT8362IMSE#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT8362IMSE#TRPBF requirements.
6.How does Aetrix verify that LT8362IMSE#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT8362IMSE#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 LT8362IMSE#TRPBF meets industry standards.
7.What is the process for return or replacement of LT8362IMSE#TRPBF?
All LT8362IMSE#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT8362IMSE#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 LT8362IMSE#TRPBF part is unused and in its original packaging.
Return procedure for LT8362IMSE#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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