My Inquiry
My Account
Analog Devices Inc. LT8330IDDB#TRPBF
- Part No.:
- LT8330IDDB#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LT8330IDDB#TRPBF.pdf
- Description:
- IC REG BOOST SEPIC ADJ 1A 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,618
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT8330IDDB#TRPBF from Analog Devices is a current-mode DC/DC converter IC configured as a boost, SEPIC, or inverting regulator with a 1A/60V internal power switch, 6µA quiescent current, fixed 2MHz switching frequency, and single-pin programmable positive/negative output voltage regulation - used in 48V telecom power supplies and portable medical diagnostics.
For engineers reviewing the LT8330IDDB#TRPBF datasheet, LT8330IDDB#TRPBF pinout, LT8330IDDB#TRPBF application, or LT8330IDDB#TRPBF equivalent, key selection criteria include ultralow IQ for battery-backed systems, AEC-Q100-qualified DFN package suitability for automotive modules, ±0.8% FBX regulation accuracy, and thermal lockout protection at 170°C.
Technical Context
The LT8330IDDB#TRPBF implements fixed-frequency (2MHz) current-mode control with dual error amplifiers enabling topology-agnostic feedback: +1.60V reference for boost/SEPIC and –0.80V reference for inverting configurations. Its internal soft-start and frequency foldback respond to low FBX voltage during startup or fault conditions.
It integrates a 1A/60V DMOS switch with 330mΩ RDS(ON), 65ns minimum on-time, and 47ns minimum off-time - supporting CCM/DCM operation across 3V–40V input and wide output ranges. INTVCC provides a regulated 3V supply for internal circuitry, requiring ≥1µF ceramic bypassing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3V to 40V - supports 12V/24V industrial rails and 3.3V/5V battery inputs without external regulators. |
| Quiescent Current | 6µA in Burst Mode - enables >1-year battery life in always-on IoT sensors with 200mAh coin cells. |
| Switch Rating | 1A continuous, 60V breakdown - handles 48V boost outputs and transient surges in automotive 24V systems. |
| FBX Regulation | +1.60V (boost/SEPIC) or –0.80V (inverting) - enables single-resistor-divider programming of both polarities. |
| Switching Frequency | Fixed 2MHz - allows use of sub-1µH inductors (e.g., 0.68µH) for <3mm² solution footprint. |
| EN/UVLO Threshold | 1.62V rising / 1.56V falling - provides precise 80mV hysteresis for reliable input undervoltage lockout. |
| Operating Temp | –40°C to +125°C junction - qualified for under-hood automotive and industrial control environments. |
Pinout & Package
LT8330IDDB#TRPBF uses an 8-lead (3mm × 2mm) plastic DFN package with exposed thermal pad (Pin 9, GND). The package is AEC-Q100 qualified and optimized for high-power density with θJA = 60°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - FBX | Feedback input | Accepts +1.60V or –0.80V reference to configure boost/SEPIC (+VOUT) or inverting (–VOUT) topologies. |
| 2 - NC | No connection | Internally unconnected; must be tied to local GND for mechanical stability and EMI reduction. |
| 3 - SW | Switch node | Drives external inductor/diode; requires minimized trace area to suppress radiated EMI at 2MHz. |
| 4 - SW | Switch node (dual bond wire) | Parallel switch terminal reducing conduction loss and improving thermal distribution in high-current paths. |
| 5 - EN/UVLO | Enable/undervoltage detect | Controls IC enable state and sets system-level UVLO threshold via resistor divider from VIN. |
| 6 - INTVCC | Internal 3V LDO output | Supplies gate driver and analog circuitry; requires ≥1µF ceramic capacitor directly to GND. |
| 7 - VIN | Main input supply | Accepts 3V–40V; must be bypassed with 4.7µF X7R ceramic placed adjacent to PIN 7 and GND. |
| 8 - GND | Power ground | Primary ground reference; connects to exposed thermal pad (Pin 9) for optimal heat dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow IQ Burst Mode | 6µA input current with <15mV output ripple - extends runtime in energy-harvesting and backup power systems. |
| Topology Flexibility | Single FBX pin supports boost, SEPIC, and inverting configurations - reduces BOM count across multiple voltage rail designs. |
| Integrated Protection | Thermal lockout (170°C), frequency foldback, and soft-start - prevent inductor saturation and output overshoot during startup/faults. |
| AEC-Q100 Qualified | DFN package meets automotive reliability standards - suitable for ADAS camera modules and infotainment power supplies. |
| Internal Compensation | No external compensation components required - simplifies layout and improves production yield for space-constrained PCBs. |
Applications
| 48V Telecom Power Supply | Portable Medical Imaging |
|---|---|
Use Scenario: Generating isolated 48V bias for optical transceivers in compact access switches. IC Role / Device Role / Timing Role: Primary DC/DC regulator providing stable 48V output from 12V intermediate bus. Use Value: 2MHz operation enables 0.68µH inductor and 4.7µF ceramic output cap - achieving <100mm² total solution size. |
Use Scenario: Powering CCD/CMOS image sensors and analog front-ends in handheld ultrasound devices. IC Role / Device Role / Timing Role: Negative rail generator (–5V/–12V) for sensor bias and ADC reference from single-cell Li-ion. Use Value: 6µA quiescent current extends battery life beyond 8 hours per charge while maintaining <15mV output ripple. |
| Automotive Camera Module | Industrial PLC I/O Isolation |
Use Scenario: Providing 5V and –5V rails for image signal processors and lens actuators in rear-view cameras. IC Role / Device Role / Timing Role: Dual-rail DC/DC controller operating in –40°C to +105°C ambient with AEC-Q100 compliance. Use Value: DFN package with exposed GND pad achieves 60°C/W thermal resistance - eliminating need for heatsinks in sealed enclosures. |
Use Scenario: Generating isolated ±15V for analog input/output conditioning circuits in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: High-voltage SEPIC converter delivering 30V output from 24V DC field bus with reverse polarity protection. Use Value: 60V switch rating and 40V max VIN withstand transient spikes up to 45V common in industrial 24V systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DC/DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT8331EDDB#TRPBF | Higher 2.5A switch current, same 2MHz frequency and FBX architecture - but 12µA IQ and larger 10-lead DFN package. | Better suited for >500mA output loads; less optimal for ultra-low-power battery systems due to doubled quiescent current. | Select LT8331EDDB#TRPBF only when peak load exceeds 1A or higher output capacitance (>15µF) is required. |
| TPS61088RHLR | 10A switch, 2.5V–12V input, no inverting capability, 1.5MHz max frequency - lacks negative output support and AEC-Q100 qualification. | Targeted at high-current consumer power banks; unsuitable for automotive or bipolar rail generation. | Choose TPS61088RHLR only for cost-sensitive, non-automotive 5V/12V boost applications with >2A load requirements. |
Compared with LT8330IDDB#TRPBF, LT8331EDDB#TRPBF trades ultralow IQ for higher current delivery, while TPS61088RHLR offers raw power but sacrifices topology flexibility, automotive qualification, and light-load efficiency - making LT8330IDDB#TRPBF the optimal choice for space-constrained, battery-sensitive, and bipolar-rail designs.
Availability
LT8330IDDB#TRPBF is available at Aetrix Electronics and suitable for automotive camera modules, portable medical diagnostics, and 48V telecom power supplies requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for LT8330IDDB#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 industrial, automotive, communications, and healthcare markets since 1965.
The LT8330 product line delivers ultralow-quiescent-current DC/DC converters for battery-critical and thermally constrained applications - designed specifically for automotive infotainment, portable instrumentation, and always-on IoT edge nodes.
FAQ
What is the maximum output voltage achievable with LT8330IDDB#TRPBF in boost configuration?
The LT8330IDDB#TRPBF supports output voltages up to 60V in boost mode, limited by its 60V switch breakdown rating and internal protection. In practice, derating to 54V ensures robustness against transients. Output voltage is set via the FBX resistor divider using the +1.60V reference, and stability depends on proper inductor and output capacitor selection per the datasheet's compensation guidelines.
Does LT8330IDDB#TRPBF support true inverting operation with negative output voltage?
Yes, LT8330IDDB#TRPBF natively supports inverting topology with a –0.80V FBX reference voltage. When configured as an inverter, it generates regulated negative outputs (e.g., –5V, –12V) from a positive input using standard external components - no additional ICs or level-shifting circuitry required. This is confirmed in the Block Diagram and OPERATION section of the Rev. D datasheet.
Is LT8330IDDB#TRPBF pin-compatible with other variants in the LT8330 family?
No, LT8330IDDB#TRPBF is not pin-compatible with TSOT-23 variants (e.g., LT8330ES6#TRPBF) due to differing package footprints (8-lead DFN vs. 6-lead TSOT-23) and pin assignments. However, it shares identical functionality, electrical specs, and FBX-based topology configuration logic with all LT8330 variants - only mechanical layout and thermal performance differ.
What is the purpose of the dual SW pins (Pins 3 and 4) on LT8330IDDB#TRPBF?
Pins 3 and 4 on LT8330IDDB#TRPBF are both bonded to the internal power switch drain node - providing parallel current paths to reduce conduction losses and improve thermal spreading across the DFN package. This dual-SW configuration lowers effective RDS(ON) and enhances reliability under sustained 1A loads, especially in high-temperature automotive environments.
Can LT8330IDDB#TRPBF operate without an external diode in SEPIC configuration?
No, LT8330IDDB#TRPBF requires an external Schottky diode in all configurations (boost, SEPIC, inverting) because it does not integrate a synchronous rectifier. The datasheet explicitly specifies Schottky diodes like PMEG6010CEJ or PMEG6030EP - selected for low forward voltage and minimal leakage - to ensure efficiency and maintain ultralow quiescent current performance.
LT8330IDDB#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up, Step-Up/Step-Down
- Output Configuration:
- Positive or Negative, Isolation Capable
- Topology:
- Boost, SEPIC
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 1.6V, -0.8V
- Voltage - Output (Max):
- 60V (Switch)
- Current - Output:
- 1A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (3x2)
LT8330IDDB#TRPBF FAQ
1.How can I place an order for LT8330IDDB#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT8330IDDB#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 LT8330IDDB#TRPBF reliable?
The price and inventory of LT8330IDDB#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT8330IDDB#TRPBF is usually 5 days.
3.What payment methods are accepted for LT8330IDDB#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT8330IDDB#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT8330IDDB#TRPBF?
LT8330IDDB#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT8330IDDB#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 LT8330IDDB#TRPBF?
For technical support, including LT8330IDDB#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT8330IDDB#TRPBF requirements.
6.How does Aetrix verify that LT8330IDDB#TRPBF is sourced from the original manufacturer or authorized distributors?
All LT8330IDDB#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 LT8330IDDB#TRPBF meets industry standards.
7.What is the process for return or replacement of LT8330IDDB#TRPBF?
All LT8330IDDB#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT8330IDDB#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 LT8330IDDB#TRPBF part is unused and in its original packaging.
Return procedure for LT8330IDDB#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT8330IDDB#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…
