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Analog Devices Inc. LT8362IMSE#PBF
- Part No.:
- LT8362IMSE#PBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad
- Datasheet:
-
LT8362IMSE#PBF.pdf
- Description:
- IC REG BOOST SEPIC 2A 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:600
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Product details
Overview
LT8362IMSE#PBF 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 operates up to 2MHz switching frequency-ideal for automotive infotainment power rails requiring wide VIN and low standby loss.
For engineers reviewing the LT8362IMSE#PBF datasheet, LT8362IMSE#PBF pinout, LT8362IMSE#PBF application, or LT8362IMSE#PBF 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-skipping, SSFM, and external clock synchronization.
Technical Context
The LT8362IMSE#PBF implements fixed-frequency current-mode control with internal slope compensation, using an error amplifier (transconductance 75 µA/V for positive regulation) that compares FBX voltage against 1.60V (boost/SEPIC) or –0.80V (inverting) references. Its oscillator frequency is resistor-programmable (300kHz–2MHz) via RT and supports synchronization across the same range.
Protection architecture includes overcurrent detection (3.75A switch trip), thermal shutdown (>170°C), INTVCC UVLO (2.5V falling), and EN/UVLO hysteresis (80mV). The BIAS pin enables dual-input operation: when 4.4V ≤ BIAS ≤ VIN, INTVCC draws primarily from BIAS-not VIN-reducing input supply burden and improving full-load efficiency.
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 (e.g., 8V–38VIN → 48VOUT) with margin for transients and diode drop. |
| Quiescent Current | 9µA in Burst Mode - sustains >90% efficiency at 1mA load while minimizing battery drain in always-on modules. |
| Switching Frequency | 300kHz to 2MHz - adjustable via RT resistor; higher frequencies allow smaller magnetics and faster transient response. |
| FBX Regulation Voltage | 1.60V (positive) or –0.80V (negative) - single feedback pin supports topology-agnostic output programming without external op-amps. |
| BIAS Pin Function | Accepts 4.4V–VIN auxiliary supply - offloads INTVCC regulator from VIN, reducing input current and improving efficiency by ~5–10% at full load. |
| UVLO Threshold | 1.576V (rising), 1.555V (falling) - precise, hysteresis-controlled enable/disable allows robust system-level brownout protection. |
Pinout & Package
LT8362IMSE#PBF 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 / Undervoltage Lockout Input | Logic-controlled shutdown and programmable input brownout threshold (1.6V typical); <0.2V reduces VIN current to <1µA. |
| VIN | Main Input Supply | Primary power source (2.8V–60V); requires local high-frequency bypassing near exposed pad. |
| SW | Power Switch Output | Drives external inductor/diode network; 60V/2A rating supports boost/SEPIC/inverting configurations. |
| FBX | Feedback Input | Single pin accepts resistor divider from output; regulates to +1.60V (positive VOUT) or –0.80V (negative VOUT). |
| SYNC/MODE | Mode Selection & Clock Sync | Configures Burst Mode (<0.14V), pulse-skip (float), SSFM (≥1.7V), or external sync (square wave 0.4–1.7V edges). |
| BIAS | Auxiliary Supply Input | Provides alternate path for INTVCC (4.4V–VIN); reduces VIN loading and improves efficiency in SEPIC/boost applications. |
| SS | Soft-Start Control | Capacitor-connected node; 2µA charge current controls inrush current ramp rate during startup. |
| VC | Error Amplifier Output | Connects external compensation network (R-C) to stabilize loop across wide input/output ranges. |
| RT | Frequency Programming | Resistor-to-GND sets switching frequency from 300kHz to 2MHz per RT = 51.2/fOSC – 5.6 (kΩ, MHz). |
| PGND/GND | Power & Signal Ground | Exposed pad (Pin 17) serves as primary thermal path and low-impedance return for SW, VIN, and FBX circuits. |
Key Features
| Feature | Design Value |
|---|---|
| Topology Flexibility | Single FBX pin enables boost, SEPIC, or inverting operation without external reconfiguration-reduces BOM count and layout variants. |
| Burst Mode Efficiency | 9µA IQ with <15mV ripple preserves battery life in always-on automotive modules while meeting EMI limits via controlled pulse spacing. |
| Spread Spectrum Modulation | 20% frequency deviation at fOSC/256 reduces peak EMI by >10dB without compromising regulation or transient response. |
| Programmable UVLO | Resistive divider on EN/UVLO sets precise turn-on/turn-off thresholds (e.g., 8V–16V window) for reliable cold-crank and load-dump immunity. |
| Thermal Robustness | Rated for –40°C to +125°C junction temperature with thermal shutdown at >170°C-validated for under-hood automotive placement. |
Applications
| Automotive Infotainment Power | Industrial Sensor Transmitter |
|---|---|
|
Use Scenario: Powering 48V camera modules and display backlights from 12V vehicle battery with cold-crank tolerance down to 6V. IC Role / Device Role / Timing Role: Primary DC/DC controller generating regulated 48V output in boost configuration; FBX pin set to +1.60V reference. Use Value: 9µA Burst Mode IQ extends parking-mode runtime; BIAS pin connected to 5V MCU rail reduces VIN loading and improves thermal margin. |
Use Scenario: Isolated 24V-to–15V inverting supply for 4–20mA loop-powered pressure sensors in hazardous-area field transmitters. IC Role / Device Role / Timing Role: Inverting converter regulating to –0.80V FBX reference; SYNC/MODE pin tied to GND for low-noise Burst Mode operation. Use Value: Single FBX architecture eliminates need for polarity-reversal circuitry; 60V switch withstands 40V surge events per IEC 61000-4-5. |
| Portable Medical Imaging | Telecom Remote Radio Unit |
|
Use Scenario: Battery-powered ultrasound probe requiring 36V bias for piezoelectric transducers and –12V for analog front-end amplifiers. IC Role / Device Role / Timing Role: Dual-output implementation using two LT8362IMSE#PBFs-one in boost (36V), one in inverting (–12V); RT set to 1MHz for compact magnetics. Use Value: Identical footprint and pinout simplify layout reuse; 2A switch supports 500mA peak transducer drive without derating. |
Use Scenario: 48V telecom line card powering RF power amplifiers with strict EMI requirements in dense base station cabinets. IC Role / Device Role / Timing Role: Boost converter with SSFM enabled via SYNC/MODE ≥1.7V; RT set to 1.5MHz to avoid AM band interference. Use Value: Spread spectrum reduces 1.5MHz harmonic peaks by >15dB; 16-lead MSOP package enables high-density power stage layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DC/DC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT8364IMSE#PBF | 4A switch, identical topology support, same pinout but larger 16-lead MSOP with different thermal pad layout. | Higher output current capability (up to 1.2A at 48V) but requires PCB layout revision due to altered exposed pad geometry. | Select when >1A continuous output is required and thermal design accommodates revised pad structure. |
| MAX17595ATP+T | 3A, 60V controller with integrated gate drivers; no BIAS pin; fixed 1.2MHz frequency; requires external MOSFETs. | Supports higher power density but increases component count and layout complexity; lacks Burst Mode IQ optimization. | Prefer for cost-sensitive, non-battery applications where 12µA IQ is acceptable and discrete FETs are already in BOM. |
Compared with LT8362IMSE#PBF, LT8364IMSE#PBF offers higher current capacity at identical topology flexibility but demands mechanical redesign, while MAX17595ATP+T trades integrated simplicity for external FET dependency and higher light-load IQ-making LT8362IMSE#PBF optimal for space-constrained, ultra-low-power boost/SEPIC/inverting designs.
Availability
LT8362IMSE#PBF is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor transmitters, portable medical imaging devices, and telecom remote radio units requiring stable component supply across extended temperature and high-reliability environments.
Supply support for LT8362IMSE#PBF 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 safety markets since 1965.
The LT8362IMSE#PBF belongs to Analog Devices' Power by Linear™ family of monolithic DC/DC converters designed for wide-input, high-efficiency, low-EMI power conversion in harsh environments-including AEC-Q100 Grade I automotive applications.
FAQ
What is the maximum output voltage achievable with LT8362IMSE#PBF in boost configuration?
The LT8362IMSE#PBF supports output voltages up to 60V in boost mode, limited by its 60V-rated internal switch and external diode/capacitor ratings. Typical validated designs achieve 48V output (e.g., 8V–38VIN → 48VOUT), with sufficient margin for transient spikes and diode forward drop. Exceeding 60V risks switch breakdown and invalidates absolute maximum ratings.
How does the BIAS pin improve efficiency in LT8362IMSE#PBF designs?
The BIAS pin on LT8362IMSE#PBF supplies the INTVCC regulator when 4.4V ≤ BIAS ≤ VIN, diverting up to 95% of INTVCC current away from VIN. In a 24V-to-48V boost application, connecting BIAS to VOUT reduces VIN supply current by ~1.8mA, improving full-load efficiency by 5–8% and lowering thermal stress on the input rail.
Can LT8362IMSE#PBF operate in discontinuous conduction mode (DCM)?
Yes, LT8362IMSE#PBF supports DCM operation inherently via its current-mode control and minimum on/off time limits (70ns/50ns typical). DCM is automatically entered at light loads in Burst Mode and can be sustained across wider load ranges by selecting inductors with lower inductance values-enabling stable regulation where CCM duty cycle constraints would otherwise violate min/max on-time limits.
What is the purpose of the NC pin in the LT8362IMSE#PBF MSOP package?
The NC (No Connection) pin in the LT8362IMSE#PBF 16-lead MSOP package (Pin 4) has no internal connection and must remain unconnected. It exists due to the package variant's pin removal pattern (four pins removed from standard 16-lead MSOP) and serves no electrical or thermal function-soldering or routing to this pin may cause unintended coupling or mechanical stress.
How is output voltage polarity selected on LT8362IMSE#PBF?
Output polarity is determined solely by the FBX pin's reference voltage: +1.60V for positive outputs (boost/SEPIC) and –0.80V for negative outputs (inverting). The resistor divider is connected accordingly-e.g., for –12V output, R1 connects to VOUT and R2 to GND, setting FBX to –0.80V. No external components or pin strapping are required to select polarity.
LT8362IMSE#PBF 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
- 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#PBF FAQ
1.How can I place an order for LT8362IMSE#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT8362IMSE#PBF 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#PBF reliable?
The price and inventory of LT8362IMSE#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT8362IMSE#PBF is usually 5 days.
3.What payment methods are accepted for LT8362IMSE#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT8362IMSE#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT8362IMSE#PBF?
LT8362IMSE#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT8362IMSE#PBF 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#PBF?
For technical support, including LT8362IMSE#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT8362IMSE#PBF requirements.
6.How does Aetrix verify that LT8362IMSE#PBF is sourced from the original manufacturer or authorized distributors?
All LT8362IMSE#PBF 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#PBF meets industry standards.
7.What is the process for return or replacement of LT8362IMSE#PBF?
All LT8362IMSE#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT8362IMSE#PBF, 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#PBF part is unused and in its original packaging.
Return procedure for LT8362IMSE#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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