My Inquiry
My Account
Analog Devices Inc. LT8362HDD#TRPBF
- Part No.:
- LT8362HDD#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LT8362HDD#TRPBF.pdf
- Description:
- IC REG BOOST SEPIC 2A 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,506
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT8362HDD#TRPBF from Analog Devices is a high-voltage, 2A current-mode DC/DC converter IC supporting boost, SEPIC, and inverting topologies. It operates from 2.8V to 60V input, delivers up to 48V output, features 9µA Burst Mode quiescent current, 60V/2A integrated switch, and programmable 300kHz–2MHz switching frequency - enabling compact, efficient power conversion in automotive infotainment head units with wide battery voltage range.
For engineers reviewing the LT8362HDD#TRPBF datasheet, LT8362HDD#TRPBF pinout, LT8362HDD#TRPBF application, or LT8362HDD#TRPBF equivalent, key selection criteria include its –40°C to 150°C AEC-Q100 qualified junction temperature rating, single FBX-pin polarity-agnostic feedback, BIAS pin for efficiency optimization, and SYNC/MODE pin configurable for Burst Mode, pulse-skipping, or spread-spectrum EMI reduction.
Technical Context
The LT8362HDD#TRPBF implements fixed-frequency current-mode control with external RT-resistor programmability (300kHz–2MHz) and dual-mode error amplifiers that auto-select between +1.60V and –0.80V internal references depending on topology-enabling seamless positive or negative output configuration via one FBX pin. Its Burst Mode architecture achieves 9µA IQ by delivering discrete energy pulses followed by deep sleep intervals.
Thermal management is enabled by the exposed PGND/GND pad soldered to PCB copper, with θJA = 43°C/W. Protection includes overcurrent detection (3.75A trip), thermal shutdown (>170°C), UVLO on EN/UVLO (1.6V turn-off, 1.68V turn-on with 80mV hysteresis), and INTVCC under-voltage lockout (2.5V fall, 2.65V rise).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8V to 60V - supports direct connection to automotive battery (cold-crank down to ~4V) and industrial 48V rails without pre-regulation. |
| Switch Rating | 60V, 2A - enables 48V boost outputs at ≥320mA from 12V input, with RDS(ON) = 165mΩ limiting conduction loss. |
| Quiescent Current | 9µA in Burst Mode - sustains >90% efficiency at 100µA load while holding output ripple <15mV. |
| Feedback Reference | +1.60V (boost/SEPIC) or –0.80V (inverting) - single FBX pin eliminates topology-specific component changes during design reuse. |
| Operating Junction Temp | –40°C to +150°C - AEC-Q100 Grade H qualification ensures reliability in engine bay or under-hood applications. |
| Package | 10-lead 3mm × 3mm DFN with exposed PGND/GND pad - provides low thermal resistance (θJA = 43°C/W) and EMI-optimized layout. |
| Switching Frequency | Programmable 300kHz–2MHz via RT resistor - allows trade-off between size (higher fSW → smaller L/C) and efficiency (lower fSW → reduced switching loss). |
Pinout & Package
LT8362HDD#TRPBF 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 integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Power Switch Output | Drives external inductor/diode network; connects to high-side node in boost/SEPIC or low-side node in inverting config. |
| 2 SYNC/MODE | Mode Control & Clock Input | Selects Burst Mode (GND), pulse-skip (float), SSFM (INTVCC), or external sync (square wave); defines EMI/efficiency operating point. |
| 3 SS | Soft-Start Timing | 2µA constant-current charge controls inrush current ramp rate; internal 220Ω pull-down resets on fault/shutdown. |
| 4 RT | Frequency Programming | Resistor to GND sets oscillator frequency (300kHz–2MHz); RT = 51.2/fOSC – 5.6 (kΩ, fOSC in MHz). |
| 5 FBX | Topology-Agnostic Feedback | Senses output via resistor divider; auto-selects +1.60V ref (positive VOUT) or –0.80V ref (negative VOUT) based on voltage polarity. |
| 6 EN/UVLO | Enable & Input Undervoltage Lockout | 1.6V falling threshold disables switching; 1.68V rising threshold re-enables with 80mV hysteresis; <0.2V reduces VIN current to <1µA. |
| 7 VIN | Main Input Supply | Primary power source (2.8V–60V); powers internal circuitry unless BIAS supplies INTVCC; requires local ceramic bypass. |
| 8 INTVCC | Internal 3.2V Regulator Output | Supplies gate drivers and logic; must be bypassed with 1µF ceramic to GND; cannot be externally loaded or driven. |
| 9 BIAS | Secondary Input for INTVCC | Accepts 4.4V–VIN to supply INTVCC, reducing VIN current draw and improving full-load efficiency (e.g., connect to VOUT in SEPIC). |
| 10 VC | Error Amplifier Output | Connects to external compensation network (R+C); sets peak inductor current via current-mode control loop. |
| 11 PGND/GND | Power & Signal Ground | Exposed pad; must be soldered to continuous PCB ground plane for thermal dissipation and low-noise reference. |
Key Features
| Feature | Design Value |
|---|---|
| Single FBX Pin Polarity Selection | Automatically selects +1.60V or –0.80V internal reference based on FBX voltage sign - eliminates separate feedback networks for boost vs inverting designs. |
| Burst Mode with 9µA IQ | Maintains regulation at microamp loads via intermittent energy pulses and deep sleep - critical for always-on automotive modules meeting ISO 16750-2 quiescent current limits. |
| BIAS Pin Efficiency Boost | Redirects INTVCC current from VIN to auxiliary supply (e.g., VOUT in SEPIC), reducing input current by >1mA at full load and improving system-level efficiency. |
| Spread Spectrum Modulation (SSFM) | Modulates switching frequency ±14–28% at fOSC/256 - lowers peak EMI by spreading energy across spectrum, easing CISPR 25 Class 5 compliance. |
| AEC-Q100 Grade H Qualification | Validated for –40°C to +150°C operation with HTOL, TC, UHAST, and ESD testing - meets automotive electronics reliability requirements without derating. |
Applications
| Automotive Infotainment | Industrial 48V Power Rails |
|---|---|
|
Use Scenario: Powering LCD backlight and audio amplifier in vehicle head unit with 9–16V battery input and cold-crank tolerance down to 4V. IC Role / Device Role / Timing Role: Primary DC/DC controller generating stable 48V from variable battery rail using boost topology with programmable soft-start. Use Value: 9µA Burst Mode IQ prevents battery drain during vehicle sleep; 150°C rating survives under-dash thermal environment; SSFM meets OEM EMI specs. |
Use Scenario: Generating isolated ±15V analog supplies for PLC I/O modules powered from unregulated 48V industrial bus. IC Role / Device Role / Timing Role: Inverting converter producing –15V from 48V input, leveraging single FBX pin and –0.80V reference for precision negative regulation. Use Value: Eliminates need for separate inverting controller; 60V switch withstands 48V transients; BIAS pin improves efficiency when VOUT used as secondary supply. |
| Portable Medical Imaging | Telecom Remote Radio Units |
|
Use Scenario: Providing 36V bias for CCD sensors in handheld ultrasound probe with strict battery life and EMI constraints. IC Role / Device Role / Timing Role: Compact boost converter in space-constrained enclosure, using 3mm × 3mm DFN and spread-spectrum mode to pass FCC Part 18. Use Value: Small footprint saves board area; 9µA IQ extends battery runtime; programmable frequency avoids sensitive RF bands in wireless transmission windows. |
Use Scenario: Generating 28V intermediate bus from 48V telecom rectifier for GaN PA bias in outdoor small cell radios. IC Role / Device Role / Timing Role: High-efficiency SEPIC converter handling wide input variation (36–72V) while maintaining regulated 28V output with BIAS-assisted INTVCC. Use Value: BIAS pin connected to VOUT reduces input current draw by 1.2mA at 1A load; 150°C rating supports sealed outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DC/DC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC3789EMSE#TRPBF | 4-switch synchronous buck-boost controller; no integrated switch; requires external MOSFETs; supports 4–36V input. | Used where higher efficiency (>95%) and bidirectional power flow are required; not suitable for space-constrained layouts needing integrated switch. | Select LTC3789EMSE#TRPBF only when designing for >3A output or when synchronous rectification is mandatory for thermal budget. |
| MAX20404ATPA/VY+ | 3.5V–36V input, 2.5A integrated buck-boost; fixed 2.1MHz fSW; no BIAS pin; only boost/SEPIC (no inverting mode). | Targeted at consumer portables with tight EMI budgets; lacks AEC-Q100 qualification and –40°C to 150°C rating. | Choose MAX20404ATPA/VY+ only for cost-sensitive non-automotive applications where inverting topology and extended temperature range are unnecessary. |
Compared with LTC3789EMSE#TRPBF and MAX20404ATPA/VY+, the LT8362HDD#TRPBF uniquely combines integrated 60V/2A switch, single-pin polarity selection, AEC-Q100 Grade H qualification, and 9µA Burst Mode IQ - making it optimal for space-, thermal-, and quiescent-current-constrained automotive and industrial converters requiring topology flexibility.
Availability
LT8362HDD#TRPBF is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial 48V power supplies, portable medical imaging devices, and telecom remote radio units requiring stable component supply with guaranteed long-term availability.
Supply support for LT8362HDD#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, communications, and automotive markets.
The LT8362HDD#TRPBF belongs to Analog Devices' Power by Linear™ family of high-voltage DC/DC converters designed specifically for demanding automotive, industrial, and telecom applications requiring wide input range, ultra-low IQ, and robust thermal performance.
FAQ
What is the maximum junction temperature rating for the LT8362HDD#TRPBF?
The LT8362HDD#TRPBF is rated for operation from –40°C to +150°C junction temperature and is AEC-Q100 Grade H qualified. This rating is validated through HTOL, temperature cycling, and UHAST testing, ensuring reliability in under-hood automotive environments and sealed industrial enclosures where ambient temperatures exceed 105°C. The LT8362HDD#TRPBF's thermal design - including its exposed PGND/GND pad and θJA = 43°C/W - supports sustained operation at this maximum rating when properly mounted.
How does the LT8362HDD#TRPBF achieve 9µA quiescent current in Burst Mode?
The LT8362HDD#TRPBF achieves 9µA quiescent current by entering deep sleep intervals between discrete energy pulses delivered to the output capacitor - minimizing active circuitry consumption while maintaining regulation. During sleep, most internal blocks are powered down, and only essential monitoring circuits remain active. The LT8362HDD#TRPBF's Burst Mode is triggered automatically when the SYNC/MODE pin is pulled below 0.14V, and its efficiency at microamp loads is further enhanced by minimizing FBX divider current and diode leakage. This behavior is confirmed in the datasheet's Figure 1 and Electrical Characteristics table.
Can the LT8362HDD#TRPBF generate both positive and negative output voltages?
Yes, the LT8362HDD#TRPBF can generate both positive and negative output voltages using the same FBX pin. When configured as a boost or SEPIC converter, FBX is referenced to +1.60V; when configured as an inverting converter, FBX is referenced to –0.80V - the IC automatically detects polarity and selects the appropriate internal reference. This eliminates the need for separate feedback networks or topology-specific IC variants. The LT8362HDD#TRPBF's block diagram and Applications Information section explicitly confirm this dual-mode capability with resistor-divider equations for both cases.
What is the purpose of the BIAS pin on the LT8362HDD#TRPBF?
The BIAS pin on the LT8362HDD#TRPBF accepts a second input supply (4.4V ≤ BIAS ≤ VIN) to power the internal 3.2V INTVCC regulator, thereby reducing current draw from the main VIN rail and improving overall efficiency - especially at high load currents. For example, in a SEPIC application where VOUT ≈ VIN, connecting BIAS to VOUT can reduce VIN current by >1mA at 1A output. The LT8362HDD#TRPBF's datasheet specifies BIAS thresholds (4.4V rising, 4.25V falling) and confirms this feature in the Pin Functions and Applications Information sections.
Is the LT8362HDD#TRPBF pin-compatible with other LT8362 variants like LT8362EDD#TRPBF?
No, the LT8362HDD#TRPBF is not pin-compatible with LT8362EDD#TRPBF in terms of temperature grade or qualification - both share identical 10-lead DFN packaging and pinout, but the 'H' grade is AEC-Q100 qualified for –40°C to +150°C operation, whereas the 'E' grade is only specified for –40°C to +125°C and lacks automotive qualification. Layout and schematic can be reused, but thermal validation and reliability testing must reflect the LT8362HDD#TRPBF's extended rating. The datasheet's Order Information table confirms identical package descriptions but distinct temperature ranges and automotive status.
LT8362HDD#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-WFDFN 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 ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x3)
LT8362HDD#TRPBF FAQ
1.How can I place an order for LT8362HDD#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT8362HDD#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 LT8362HDD#TRPBF reliable?
The price and inventory of LT8362HDD#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT8362HDD#TRPBF is usually 5 days.
3.What payment methods are accepted for LT8362HDD#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT8362HDD#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT8362HDD#TRPBF?
LT8362HDD#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT8362HDD#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 LT8362HDD#TRPBF?
For technical support, including LT8362HDD#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT8362HDD#TRPBF requirements.
6.How does Aetrix verify that LT8362HDD#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT8362HDD#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 LT8362HDD#TRPBF meets industry standards.
7.What is the process for return or replacement of LT8362HDD#TRPBF?
All LT8362HDD#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT8362HDD#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 LT8362HDD#TRPBF part is unused and in its original packaging.
Return procedure for LT8362HDD#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT8362HDD#TRPBF Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
