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Analog Devices Inc. LT8362EDD#WPBF
- Part No.:
- LT8362EDD#WPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LT8362EDD#WPBF.pdf
- Description:
- IC REG BST SEPIC ADJ 2A 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:111
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Product details
Overview
LT8362EDD#WPBF from Analog Devices is a 60V, 2A current-mode DC/DC converter IC 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 with external RT resistor. Used in automotive power supplies requiring AEC-Q100-compliant wide-input isolated or non-isolated voltage conversion.
For engineers reviewing the LT8362EDD#WPBF datasheet, LT8362EDD#WPBF pinout, LT8362EDD#WPBF application, or LT8362EDD#WPBF equivalent, key selection criteria include its single-feedback-pin topology flexibility, BIAS pin efficiency optimization, SYNC/MODE configurable low-EMI modes (Burst, pulse-skip, SSFM), and thermally enhanced 10-lead 3mm × 3mm DFN package rated for –40°C to 125°C junction temperature.
Technical Context
The LT8362EDD#WPBF implements fixed-frequency current-mode control with dual error amplifiers enabling ±1.6V/±0.8V FBX regulation thresholds for positive or negative output configurations. Its oscillator supports precise frequency programming via RT pin (300kHz–2MHz) and synchronization to external clocks (300kHz–2MHz range) with defined rising/falling thresholds (0.4V/1.3V).
Protection architecture includes programmable UVLO via EN/UVLO pin (1.576V rising, 1.555V falling), thermal shutdown (>170°C), switch overcurrent detection (3.75A), and frequency foldback. The BIAS pin enables INTVCC sourcing from a secondary supply (4.4V ≤ BIAS ≤ VIN), reducing VIN current draw and improving full-load efficiency in SEPIC or high-VIN boost designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8V to 60V - supports direct battery-to-rail conversion 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 700mA load at 24VIN, suitable for powering RF transceivers or sensors. |
| Quiescent Current | 9µA in Burst Mode - sustains >90% efficiency at 100µA loads, critical for always-on automotive modules like telematics or ADAS wake-up circuits. |
| Feedback Regulation | FBX = +1.60V (boost/SEPIC) or –0.80V (inverting) - single-pin topology selection eliminates external mode-switching logic or extra resistors. |
| Switching Frequency | Programmable 300kHz–2MHz via RT resistor - allows EMI-sensitive layouts (e.g., infotainment) to shift above AM band or optimize inductor size/cost. |
| Package & Temp Range | 10-lead 3mm × 3mm DFN with exposed PGND pad - θJA = 43°C/W; rated –40°C to 125°C junction, meeting AEC-Q100 Grade 1 requirements. |
| EMI Reduction | Spread Spectrum Frequency Modulation (SSFM) - ±14–28% deviation at fOSC/256 rate, lowering peak radiated emissions without filter redesign. |
Pinout & Package
LT8362EDD#WPBF uses a thermally enhanced 10-lead 3mm × 3mm plastic DFN package with exposed PGND/GND pad (Pin 11) requiring soldering to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Power Switch Output | Drives external inductor/diode network; 60V/2A rating defines max output voltage and continuous current capability. |
| 2 SYNC/MODE | Mode Control & Clock Input | Selects Burst Mode (<0.14V), pulse-skip (open), SSFM (>1.7V), or external sync (0.4–1.7V clock); enables EMI-aware operation without hardware changes. |
| 3 SS | Soft-Start Timing | 2µA constant-current charge controls inrush current ramp rate; internal 220Ω discharge resets on fault/shutdown. |
| 4 RT | Oscillator Frequency Set | Resistor to GND programs fSW (300kHz–2MHz); e.g., 20kΩ sets 2MHz for compact magnetics in space-constrained modules. |
| 5 FBX | Topology-Agnostic Feedback | +1.60V reference for boost/SEPIC, –0.80V for inverting; eliminates separate feedback networks when reusing design across polarity requirements. |
| 6 EN/UVLO | Enable & Input Monitoring | 1.6V threshold with 80mV hysteresis enables programmable undervoltage lockout; <0.2V reduces IQ to <1µA for deep sleep. |
| 7 VIN | Main Input Supply | Accepts 2.8V–60V; local bypassing required near pin and exposed pad to minimize noise coupling into sensitive analog blocks. |
| 8 INTVCC | Internal 3.2V Regulator Output | Must be bypassed with 1µF ceramic capacitor; not user-loadable - powers gate drivers and internal logic only. |
| 9 BIAS | Secondary INTVCC Supply | Accepts 4.4V–40V input to source INTVCC, diverting up to 1.6mA from VIN and improving efficiency in high-VIN SEPIC applications. |
| 10 VC | Error Amplifier Output | Connects external compensation network (RC, CC) to stabilize loop across wide VIN/VOUT ranges and load conditions. |
| 11 PGND/GND | Power & Signal Ground | Exposed pad must be soldered to solid copper plane - primary thermal path and low-impedance return for switch current and feedback signals. |
Key Features
| Feature | Design Value |
|---|---|
| Single FBX Pin Topology Selection | Eliminates external mode-select circuitry: same layout supports boost (VOUT > VIN), SEPIC (VOUT >/< VIN), or inverting (VOUT < 0) by changing only R1/R2 divider polarity. |
| Burst Mode with 9µA IQ | Maintains regulation at microamp loads while holding output ripple <15mV - extends battery life in always-on vehicle event recorders or tire pressure sensors. |
| BIAS Pin Efficiency Boost | Reduces VIN current draw by >1mA at full load when BIAS = VOUT (e.g., 48V SEPIC), directly improving system-level efficiency in high-input industrial power supplies. |
| Programmable UVLO with Hysteresis | EN/UVLO pin allows precise turn-on/off thresholds (e.g., 8V–10V window) using two resistors - prevents brownout oscillation during cold-cranking in automotive 12V systems. |
| SSFM for CISPR 25 Compliance | Triangle-modulated frequency spreading (±14–28%) lowers peak EMI by 5–10dB, easing radiated emissions certification for infotainment head units without added shielding. |
Applications
| Automotive Telematics Power | Industrial Sensor Bias Supply |
|---|---|
|
Use Scenario: Powering GPS/GNSS receivers and cellular modems in vehicle black boxes with 9–16V battery input and strict 100µA standby current limits. IC Role / Device Role / Timing Role: Primary DC/DC controller generating stable 3.3V/5V rails from unregulated battery; Burst Mode maintains regulation during sleep states. Use Value: 9µA quiescent current extends battery backup runtime to >30 days; AEC-Q100 qualification ensures reliability across –40°C to 125°C under hood conditions. |
Use Scenario: Providing isolated ±15V bias for precision strain-gauge signal conditioning in factory-floor vibration monitors powered from 24V DC bus. IC Role / Device Role / Timing Role: Inverting converter generating negative rail; FBX pin configured for –0.80V reference enables accurate dual-rail tracking. Use Value: Single-part solution replaces dual converters; 60V switch rating tolerates 24V bus transients up to 60V, eliminating need for upstream TVS clamping. |
| Medical Portable Imaging | Telecom Remote Radio Unit |
|
Use Scenario: Generating 48V HV bias for ultrasound transducer arrays in handheld diagnostic devices using single-cell Li-ion (3.0–4.2V) input. IC Role / Device Role / Timing Role: High-ratio boost converter operating at 2MHz to minimize inductor size; SSFM reduces EMI coupling into sensitive analog front-end. Use Value: 2MHz switching enables <10mm³ magnetics; 9µA IQ preserves battery charge during idle scanning intervals between image captures. |
Use Scenario: Powering GaN PA bias rails in 5G small-cell remote radio heads where 48V backplane must generate 10V/2A and –5V/0.5A locally. IC Role / Device Role / Timing Role: Dual-output implementation using one LT8362EDD#WPBF in SEPIC mode (10V) and second in inverting mode (–5V) sharing common FBX control. Use Value: Shared compensation and timing reduces component count vs discrete solutions; thermal DFN package sustains 70°C ambient without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DC/DC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC3780EFE#PBF | 4-switch synchronous buck-boost controller; no integrated switch; requires external MOSFETs; supports 4–36V input. | Used in higher-power (>5A), bidirectional energy storage applications; lacks Burst Mode and SSFM. | Select when >3A output current or bidirectional power flow (e.g., battery backup systems) is required; not drop-in for LT8362EDD#WPBF's integrated-switch use cases. |
| MAX20077ATCB/V+T | Automotive-grade 60V, 2.5A buck regulator; fixed 2.1MHz frequency; no topology flexibility; only step-down. | Targets infotainment SoC core rails; lacks boost/SEPIC/inverting capability and programmable frequency. | Choose for cost-sensitive, fixed-ratio 5V/3.3V generation where topology flexibility and ultra-low IQ are unnecessary. |
Compared with LTC3780EFE#PBF and MAX20077ATCB/V+T, the LT8362EDD#WPBF uniquely combines integrated 60V/2A switch, single-pin topology selection, 9µA Burst Mode, and SSFM in a compact DFN - making it optimal for space-constrained, wide-input, low-quiescent automotive and portable medical converters where design reuse across boost/SEPIC/inverting is valuable.
Availability
LT8362EDD#WPBF is available at Aetrix Electronics and suitable for automotive telematics, industrial sensor biasing, portable medical imaging, and telecom remote radio unit designs requiring stable component supply with AEC-Q100 compliance and extended temperature support.
Supply support for LT8362EDD#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 LT8362EDD#WPBF belongs to Analog Devices' Power by Linear™ family of high-voltage DC/DC controllers, designed specifically for robust, efficient, and EMI-conscious power conversion in automotive and harsh-environment applications.
FAQ
What is the maximum output voltage achievable with LT8362EDD#WPBF in boost configuration?
The LT8362EDD#WPBF supports output voltages up to 60V in boost mode, limited by its 60V-rated internal switch. Practical maximum depends on external components: Schottky diode reverse voltage rating, output capacitor voltage rating, and inductor saturation current. For example, the typical 48V boost application (8V–38VIN → 48VOUT) operates reliably within switch SOA and thermal limits of the LT8362EDD#WPBF DFN package.
Does LT8362EDD#WPBF support AEC-Q100 qualification, and what grade does it meet?
Yes, the LT8362EDD#WPBF is explicitly designated as an automotive-grade part with AEC-Q100 qualification. Per Analog Devices' ordering information, the #WPBF suffix indicates controlled manufacturing for automotive reliability, and the E-grade variant (as in LT8362EDD#WPBF) is rated for –40°C to 125°C junction temperature - satisfying AEC-Q100 Grade 1 requirements for passenger compartment applications.
How does the BIAS pin improve efficiency in LT8362EDD#WPBF designs?
The BIAS pin on the LT8362EDD#WPBF allows sourcing the INTVCC regulator (3.2V, ~1.6mA typical) from a secondary supply (e.g., VOUT in SEPIC) instead of VIN, reducing VIN current draw. When BIAS = 5V and VIN = 24V, active-mode IQ drops from 1.2mA to 22µA - directly improving full-load efficiency by 0.5–1.2% in high-input applications like 24V-to-48V boost converters used in telecom equipment.
Can LT8362EDD#WPBF operate in discontinuous conduction mode (DCM), and why would that be selected?
Yes, the LT8362EDD#WPBF supports DCM operation, which occurs naturally at light loads in Burst Mode or can be designed-in via inductor value selection. DCM avoids subharmonic oscillation and right-half-plane zero issues inherent to CCM in boost converters, simplifying compensation. It also enables higher duty cycles than CCM - useful when VIN(MIN)/VOUT ratio demands >90% duty cycle, where minimum off-time limits CCM feasibility.
What are the absolute maximum ratings for the SYNC/MODE pin on LT8362EDD#WPBF?
The SYNC/MODE pin on LT8362EDD#WPBF has an absolute maximum rating of 6V when driven externally as a clock input. Its logic thresholds are defined as: mode selection high = >1.7V, low = <0.14V; clock detection rising = >0.4V, falling = <1.3V. Exceeding 6V risks permanent damage per Absolute Maximum Ratings table - external series resistors are recommended when interfacing with 5V logic or clock sources to limit current and prevent overstress.
LT8362EDD#WPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-WFDFN 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):
- 0.8V
- Voltage - Output (Max):
- 60V (Switch)
- Current - Output:
- 2A (Switch)
- Frequency - Switching:
- 300kHz ~ 2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
LT8362EDD#WPBF FAQ
1.How can I place an order for LT8362EDD#WPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT8362EDD#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 LT8362EDD#WPBF reliable?
The price and inventory of LT8362EDD#WPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT8362EDD#WPBF is usually 5 days.
3.What payment methods are accepted for LT8362EDD#WPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT8362EDD#WPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT8362EDD#WPBF?
LT8362EDD#WPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT8362EDD#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 LT8362EDD#WPBF?
For technical support, including LT8362EDD#WPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT8362EDD#WPBF requirements.
6.How does Aetrix verify that LT8362EDD#WPBF is sourced from the original manufacturer or authorized distributors?
All LT8362EDD#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 LT8362EDD#WPBF meets industry standards.
7.What is the process for return or replacement of LT8362EDD#WPBF?
All LT8362EDD#WPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT8362EDD#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 LT8362EDD#WPBF part is unused and in its original packaging.
Return procedure for LT8362EDD#WPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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