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Analog Devices Inc. LT8362EDD#PBF
- Part No.:
- LT8362EDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LT8362EDD#PBF.pdf
- Description:
- IC REG BOOST SEPIC 2A 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:573
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Product details
Overview
LT8362EDD#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 enables programmable switching frequency from 300kHz to 2MHz - ideal for battery-powered industrial sensors requiring long runtime and stable 48V bias rails.
For engineers reviewing the LT8362EDD#PBF datasheet, LT8362EDD#PBF pinout, LT8362EDD#PBF application, or LT8362EDD#PBF equivalent, key selection considerations include single-feedback-pin polarity flexibility (±0.8V/1.6V reference), BIAS pin efficiency optimization, SYNC/MODE configurable EMI reduction modes, and thermal performance in the 3mm × 3mm DFN package with exposed PGND pad.
Technical Context
The LT8362EDD#PBF implements fixed-frequency current-mode control with dual error amplifiers - one active for positive outputs (FBX = +1.6V reference), the other for negative outputs (FBX = –0.8V reference) - enabling topology reconfiguration without hardware change. Its oscillator supports RT-resistor programming and external synchronization across 300kHz–2MHz.
Protection architecture includes programmable UVLO via EN/UVLO pin (1.576V rising threshold), overcurrent detection (3.75A switch trip), thermal shutdown (>170°C), and frequency foldback during overload. The BIAS pin dynamically sources INTVCC when 4.4V ≤ BIAS ≤ VIN, reducing VIN supply current and improving full-load efficiency by up to 3% in SEPIC configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8V to 60V - supports wide-range industrial and automotive battery inputs including 12V, 24V, and 48V systems. |
| Switch Rating | 60V breakdown voltage, 2A continuous current - enables 48V boost output at 320mA from 12V input per typical application. |
| Quiescent Current | 9µA in Burst Mode - sustains >10-year battery life in always-on remote monitoring nodes with µA-level sleep current. |
| Feedback Reference | +1.60V for positive outputs, –0.80V for negative outputs - allows single FBX pin to configure boost, SEPIC, or inverting operation without external logic. |
| Switching Frequency | 300kHz to 2MHz (RT-programmable) - balances EMI suppression (lower f) vs. size/cost (higher f) in space-constrained PCB layouts. |
| Package | 10-lead 3mm × 3mm DFN with exposed PGND pad - achieves θJA = 43°C/W for 1.5W dissipation in compact industrial modules. |
| Operating Temperature | –40°C to +125°C junction - qualified for under-hood automotive and factory-floor industrial environments. |
Pinout & Package
LT8362EDD#PBF uses a thermally enhanced 10-lead 3mm × 3mm plastic DFN package with exposed PGND/GND pad (Pin 11) that must be soldered to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Power Switch Output | Drives external inductor/diode network; rated 60V/2A; minimize trace area to reduce EMI radiation. |
| 2 SYNC/MODE | Mode Selection & Clock Input | Configures Burst/Pulse-Skip/Sync/SSFM operation; accepts 0.4V–1.7V logic thresholds or external clock (300kHz–2MHz). |
| 3 SS | Soft-Start Control | 2µA constant-current charge pin; capacitor value sets inrush current ramp rate and prevents inductor saturation at startup. |
| 4 RT | Frequency Programming | Resistor-to-GND sets switching frequency (300kHz–2MHz); RT = 51.2/fOSC – 5.6 kΩ (fOSC in MHz). |
| 5 FBX | Feedback Input | Single pin accepts resistor divider from output; selects +1.6V (boost/SEPIC) or –0.8V (inverting) regulation reference automatically. |
| 6 EN/UVLO | Enable & Undervoltage Lockout | 1.576V rising threshold enables IC; 80mV hysteresis prevents oscillation near cutoff; <0.2V reduces VIN current to <1µA. |
| 7 VIN | Main Input Supply | 2.8V–60V input; requires local 10µF ceramic bypass close to pin and exposed PGND pad. |
| 8 INTVCC | Internal 3.2V Regulator Output | Supplies gate drivers and internal circuitry; must be bypassed with 1µF ceramic; not externally loaded. |
| 9 BIAS | Secondary Supply Input | Accepts 4.4V–40V auxiliary supply to power INTVCC, reducing VIN current and improving efficiency in high-VIN applications. |
| 10 VC | Error Amplifier Output | Connects to external compensation network (R-C-CE) to stabilize loop across input/output/temperature variations. |
| 11 PGND/GND | Power & Signal Ground | Exposed pad; must be soldered to solid copper ground plane for thermal management and low-noise reference. |
Key Features
| Feature | Design Value |
|---|---|
| Single FBX Pin Topology Flexibility | Automatically selects +1.6V or –0.8V internal reference based on FBX voltage polarity - eliminates external mode-select logic and saves board space. |
| Burst Mode with 9µA IQ | Maintains regulation while drawing only 9µA from VIN at light loads - extends battery life in portable medical diagnostics and IoT edge nodes. |
| Spread Spectrum Frequency Modulation | ±14% to ±28% frequency deviation (RT-dependent) reduces peak EMI by >10dB - simplifies EMC compliance in dense industrial PCBs. |
| BIAS Pin Efficiency Boost | Redirects INTVCC current from VIN to auxiliary supply (e.g., VOUT in SEPIC), cutting VIN supply current by >50% and raising full-load efficiency up to 3%. |
| Programmable UVLO with Hysteresis | EN/UVLO pin sets precise turn-on (1.68V) and turn-off (1.6V) thresholds using resistive divider - prevents brownout oscillation in fluctuating 12V/24V systems. |
Applications
| Industrial Sensor Power | Automotive Camera Bias Rail |
|---|---|
Use Scenario: Powering 48V CCD/CMOS image sensors in factory automation vision systems with 24V nominal bus input. IC Role / Device Role / Timing Role: Boost converter generating regulated 48V output from 18–36V input range; operates in CCM with 1MHz switching for compact magnetics. Use Value: 9µA Burst Mode IQ enables always-on operation with <10µA system sleep current; BIAS pin connected to 12V auxiliary rail improves efficiency by 2.4% at 200mA load. |
Use Scenario: Providing stable 12V bias to ADAS front-facing cameras in vehicles with cold-crank (4.5V) to load-dump (60V) transients. IC Role / Device Role / Timing Role: SEPIC converter maintaining regulation across full automotive voltage range; uses EN/UVLO hysteresis to prevent restart chatter during cranking. Use Value: 60V switch withstands load-dump spikes without clamping; SSFM reduces radiated emissions below CISPR 25 Class 5 limits at 150MHz. |
| Portable Medical Imaging | Telecom Remote Radio Unit |
Use Scenario: Generating –15V and +15V rails for ultrasound transducer driver ICs in handheld diagnostic devices powered by Li-ion batteries. IC Role / Device Role / Timing Role: Inverting converter topology configured via FBX feedback polarity; soft-start (SS pin) controls inrush into high-capacitance piezo loads. Use Value: Single FBX pin eliminates dual-reference circuitry; 2A switch supports 500mA peak pulsed loads; DFN package fits within 12mm × 12mm board area. |
Use Scenario: Supplying 28V auxiliary power to remote radio heads (RRH) from 48V telecom plant battery with strict EMI requirements. IC Role / Device Role / Timing Role: Boost converter synchronized to baseband clock (via SYNC pin) to shift switching noise away from sensitive RF bands. Use Value: External clock sync avoids beat frequencies with LTE/5G carriers; 2MHz operation enables <2.2µH inductors for minimal footprint and weight. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DC/DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT8364EMSE#PBF | 4A switch, 16-lead MSOP package, same 2.8V–60V input, adds current monitor pin | Higher output current capability (up to 600mA at 48V), larger thermal footprint required | Select when >320mA 48V output or real-time current sensing is needed; not pin-compatible with LT8362EDD#PBF. |
| TPS61178RTPR | 2.5A switch, 3.5V–60V input, fixed 1.2MHz frequency, no BIAS pin or SSFM | Lacks programmable frequency, UVLO hysteresis, and spread spectrum - higher EMI risk in RF-sensitive designs | Choose for cost-sensitive, non-automotive applications where 9µA IQ and EMI control are secondary to BOM simplicity. |
Compared with LT8362EDD#PBF, LT8364EMSE#PBF offers higher current but requires PCB redesign due to different package and pinout, while TPS61178RTPR sacrifices critical low-IQ and EMI features for lower unit cost - making LT8362EDD#PBF optimal for space-constrained, battery-powered, and EMI-sensitive industrial systems.
Availability
LT8362EDD#PBF is available at Aetrix Electronics and suitable for industrial sensor power, automotive camera bias rails, portable medical imaging, and telecom remote radio units requiring stable component supply across extended temperature and voltage ranges.
Supply support for LT8362EDD#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 LT8362EDD#PBF belongs to Analog Devices' Power by Linear™ family of monolithic DC/DC converters designed for high-voltage, wide-input industrial and automotive power conversion with emphasis on ultralow quiescent current and EMI robustness.
FAQ
What is the maximum output voltage achievable with LT8362EDD#PBF in boost configuration?
The LT8362EDD#PBF supports output voltages up to 60V in boost topology, limited by its 60V-rated internal switch and external component ratings. In the typical 48V output application (VIN = 12V), it delivers 320mA at 92% efficiency. Higher outputs require careful selection of external diode, capacitor, and inductor voltage ratings - for example, a 100V Schottky diode and 63V output capacitor are recommended for 56V designs.
How does the BIAS pin improve efficiency in LT8362EDD#PBF designs?
The BIAS pin on LT8362EDD#PBF supplies the internal 3.2V INTVCC regulator when 4.4V ≤ BIAS ≤ VIN, diverting up to 1.6mA of bias current away from VIN. In SEPIC applications where VIN often exceeds VOUT, connecting BIAS to VOUT reduces total input current by ~1.2mA at full load - increasing efficiency by up to 3% and lowering thermal stress on the input stage.
Can LT8362EDD#PBF operate in discontinuous conduction mode (DCM)?
Yes, LT8362EDD#PBF supports both CCM and DCM operation. Its minimum on-time (70ns typ.) and off-time (50ns typ.) allow DCM down to very light loads, especially when combined with Burst Mode. DCM avoids right-half-plane zero issues and relaxes inductor value constraints - useful in low-power sensor nodes where peak current and EMI matter more than peak efficiency.
What is the purpose of the SYNC/MODE pin's five operating modes in LT8362EDD#PBF?
The SYNC/MODE pin on LT8362EDD#PBF selects among five distinct operational modes: (1) GND → Burst Mode (9µA IQ), (2) External clock → Sync + Pulse-Skip, (3) 100k-to-GND → Burst + SSFM, (4) Float → Pulse-Skip only, (5) INTVCC → Pulse-Skip + SSFM. This enables dynamic trade-offs between light-load efficiency, EMI performance, and transient response without changing hardware.
Is LT8362EDD#PBF AEC-Q100 qualified?
No, LT8362EDD#PBF is not AEC-Q100 qualified. It is rated for –40°C to +125°C operation and intended for industrial applications. For automotive use, Analog Devices offers the LT8362HMSE#WPBF (16-lead MSOP, AEC-Q100 Grade 1, –40°C to +150°C) and LT8362HDD#WPBF (10-lead DFN, AEC-Q100 Grade 1) variants with controlled manufacturing and automotive reliability reports.
LT8362EDD#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-WFDFN 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:
- 10-DFN (3x3)
LT8362EDD#PBF FAQ
1.How can I place an order for LT8362EDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT8362EDD#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 LT8362EDD#PBF reliable?
The price and inventory of LT8362EDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT8362EDD#PBF is usually 5 days.
3.What payment methods are accepted for LT8362EDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT8362EDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT8362EDD#PBF?
LT8362EDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT8362EDD#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 LT8362EDD#PBF?
For technical support, including LT8362EDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT8362EDD#PBF requirements.
6.How does Aetrix verify that LT8362EDD#PBF is sourced from the original manufacturer or authorized distributors?
All LT8362EDD#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 LT8362EDD#PBF meets industry standards.
7.What is the process for return or replacement of LT8362EDD#PBF?
All LT8362EDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT8362EDD#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 LT8362EDD#PBF part is unused and in its original packaging.
Return procedure for LT8362EDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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