My Inquiry
My Account
Analog Devices Inc. LTC3290IMSE#TRPBF
- Part No.:
- LTC3290IMSE#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC3290IMSE#TRPBF.pdf
- Description:
- IC REG BOOST 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,958
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC3290IMSE#TRPBF from Analog Devices is a high-voltage boost charge pump IC designed for industrial and automotive power supply rails, supporting 4.5V to 55V input (VIN), 4.5V to 55V auxiliary (VAUX), delivering up to 50mA output current with 15µA VIN quiescent current and AEC-Q100 qualification for automotive use.
For engineers reviewing the LTC3290IMSE#TRPBF datasheet, LTC3290IMSE#TRPBF pinout, LTC3290IMSE#TRPBF application, or LTC3290IMSE#TRPBF equivalent, key selection criteria include VIN/VAUX dual-supply tracking capability, 10-pin MSOP thermal performance, reverse input protection to –55V, and hysteretic Burst Mode® regulation for low-noise, low-quiescent operation in battery-backed and high-side FET driver systems.
Technical Context
The LTC3290IMSE#TRPBF implements a 250kHz fixed-frequency switched-capacitor boost architecture with internal S1–S4 MOSFET switches and a 1V reference. It operates in two distinct modes: standard boost (VSET = GND), where VOUT = 1V × (R2/R1 + 1), and VIN-tracking mode (VSET floating via resistor network), where VOUT = VIN + 1V × (R2/R1).
Its feedback loop uses FB as servo node (regulated to 1.00V ±20mV) and PGOOD as open-drain status indicator with 95%–98% rising threshold in boost mode. Internal BIAS pin supplies 4.5V (typ) for gate drive and logic, requiring a 4.7µF ceramic bypass capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 4.5V to 55V - supports wide-input industrial rails and 12V/24V/48V battery systems without pre-regulation |
| VAUX Range | 4.5V to 55V - enables split-supply efficiency optimization and sets upper bound on VOUT offset voltage |
| Max Output Current | 50mA - determined by effective open-loop resistance (ROL = 65Ω typ) and (VIN + VAUX − VOUT) headroom |
| VIN Quiescent Current | 15µA (typ) - enables always-on monitoring circuits with minimal battery drain |
| VAUX Quiescent Current | 1µA (typ) - allows VAUX to remain active during deep sleep without significant leakage penalty |
| FB Regulation Voltage | 1.00V ±20mV - defines precision of external resistor-divider-based output programming |
| Thermal Range | –40°C to 125°C junction - validated for under-hood automotive and industrial control environments |
Pinout & Package
The LTC3290IMSE#TRPBF is housed in a thermally enhanced 10-lead plastic MSOP package with exposed pad (Pin 11 = GND), requiring soldering to PCB ground plane for thermal compliance (θJA = 45°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VAUX (1) | Auxiliary supply input | Provides second energy source for charge pump; sets max VOUT offset; must be bypassed with ≥10µF ceramic cap |
| EN (2) | Enable logic input | Active-high control (1.1V–2V threshold); shutdown draws only 3µA from VIN |
| C+ (3) | Flying capacitor positive node | Switches at 250kHz; connects to C– during charging phase; requires low-ESR ceramic (≥1µF) |
| C– (4) | Flying capacitor negative node | Swings between VIN and GND; must avoid routing near FB/VSET due to high dI/dt noise |
| VIN (5) | Main input supply | Primary power path; reverse-protected to –55V; bypass with ≥10µF ceramic capacitor |
| BIAS (6) | Internal bias rail output | 4.5V (typ); powers internal logic/switches; requires 4.7µF ceramic cap to GND (min 6.3V rating) |
| PGOOD (7) | Open-drain power-good flag | Pulled high externally (≤3.6V); asserts low until VOUT reaches 95% of target in boost mode |
| FB (8) | Feedback reference input | Servos to 1.00V; sets VOUT via R1/R2 divider; current mirror reference in tracking mode |
| VSET (9) | Mode-select and tracking setpoint | GND = boost mode; resistor to VOUT + resistor to GND = VIN-tracking offset configuration |
| VOUT (10) | Regulated output | Delivers boosted or VIN-tracked voltage; bypass with ≥10µF ceramic cap to GND (boost) or VIN (tracking) |
| GND (11, Exposed Pad) | Power and signal ground | Thermal and electrical reference; must be soldered to PCB ground plane for θJA = 45°C/W |
Key Features
| Feature | Design Value |
|---|---|
| Wide dual-supply input range | 4.5V–55V on both VIN and VAUX enables flexible sourcing from batteries, rails, or auxiliary converters |
| VIN tracking capability | Programmable fixed offset above VIN (e.g., VOUT = VIN + 10V) eliminates need for separate tracking LDOs |
| Reverse input protection | Withstands –55V on VIN/VAUX/EN - critical for hot-swap, load-dump, and battery-reversal scenarios |
| Hysteretic Burst Mode® | Reduces switching losses at light loads; achieves 15µA VIN IQ while maintaining tight output regulation |
| Short-circuit & thermal protection | 150mA (typ) current limit folds back under fault; thermal shutdown activates at ~175°C and recovers at ~165°C |
Applications
| High-Side N-FET Driver | VIN Tracking Supply |
|---|---|
Use Scenario: Driving gate of high-side N-channel MOSFET in 24V industrial motor control with inrush limiting and load disconnect. IC Role / Device Role / Timing Role: LTC3290IMSE#TRPBF generates gate drive voltage (e.g., 42V) referenced to source potential, enabling full enhancement of high-side switch. Use Value: Eliminates isolated bias supply; leverages VAUX for efficient boost ratio; reverse protection prevents damage during load dump transients. | Use Scenario: Providing (VBAT + 10V) bias for analog front-end in automotive telematics unit powered from 12V lead-acid battery. IC Role / Device Role / Timing Role: LTC3290IMSE#TRPBF regulates output precisely 10V above varying battery voltage (9V–16V), ensuring stable sensor bias across cold-crank and alternator conditions. Use Value: Maintains constant headroom for op-amps and ADC references without trimming resistors or complex feedback compensation. |
| Industrial High-Voltage Bias Rail | Automotive Power Switching |
Use Scenario: Generating 36V bias for industrial PLC I/O modules from 24V DC bus with minimal heat dissipation. IC Role / Device Role / Timing Role: LTC3290IMSE#TRPBF operates in standard boost mode with VAUX = 12V, achieving 36V @ 20mA with <85% efficiency at full load. Use Value: Ceramic-capacitor-only design reduces EMI and footprint vs inductor-based solutions; 15µA quiescent current preserves standby battery life. | Use Scenario: Powering high-side switch controllers in automotive body electronics (e.g., seat/mirror control) requiring robustness to load dump and reverse battery. IC Role / Device Role / Timing Role: LTC3290IMSE#TRPBF serves as AEC-Q100 qualified boost stage feeding downstream drivers, with integrated short-circuit and thermal protection. Use Value: Qualified operation up to 125°C junction temperature ensures reliability in confined under-dash enclosures; exposed-pad MSOP aids thermal management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage charge pump applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC3261EMS#TRPBF | Inverting topology; 4.5V–32V input; 100mA output; no VIN tracking; no reverse protection | Generates negative rail (e.g., –15V) instead of positive boost; lacks VSET/FB tracking architecture | Select when negative bias required; not suitable for VIN-tracking or reverse-protected positive boost |
| LTC3256EFE#TRPBF | Dual-output (350mA step-down + 50mA boost); 5.5V–38V input; no reverse protection; larger 20-pin TSSOP | Integrates primary buck regulator with auxiliary boost; higher current but less precise tracking | Choose for multi-rail systems needing main 3.3V/5V + auxiliary boost; not drop-in for single-rail tracking |
Compared with LTC3261EMS#TRPBF and LTC3256EFE#TRPBF, the LTC3290IMSE#TRPBF uniquely combines VIN tracking, –55V reverse protection, and ultra-low quiescent current in a compact 10-pin MSOP-making it optimal for automotive and industrial applications demanding precise, robust, and space-constrained positive voltage boosting.
Availability
LTC3290IMSE#TRPBF is available at Aetrix Electronics and suitable for automotive power switching, high-side N-FET driver circuits, and industrial high-voltage bias rails requiring stable component supply across extended temperature and harsh electrical environments.
Supply support for LTC3290IMSE#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.
The LTC3290 product line delivers high-voltage, low-quiescent charge pumps optimized for automotive-grade reliability, reverse-protected operation, and flexible dual-supply architectures in space-constrained applications.
FAQ
What is the maximum output voltage achievable with the LTC3290IMSE#TRPBF?
The LTC3290IMSE#TRPBF limits maximum VOUT to VIN + VAUX, with absolute maximum ratings capping VOUT at 67V (overvoltage threshold). In practice, output is constrained by external resistor selection, flying capacitor rating, and thermal limits. For example, with VIN = 12V and VAUX = 12V, VOUT can be set to 24V in boost mode or tracked to VIN + 10V = 22V in tracking mode - both within safe operating area.
How does the LTC3290IMSE#TRPBF implement VIN tracking mode?
The LTC3290IMSE#TRPBF enters VIN tracking mode when VSET is configured with an external resistor to VOUT and FB is tied to GND via another resistor. The FB pin holds 1.00V, generating a reference current mirrored into the VSET-to-VOUT resistor. This creates a fixed offset voltage (e.g., 10V) added to VIN. The LTC3290IMSE#TRPBF does not require external op-amps or DACs - all tracking functionality is internal and resistor-programmable.
Can the LTC3290IMSE#TRPBF operate with only one input supply?
Yes - the LTC3290IMSE#TRPBF can operate with VAUX tied to VIN (or GND if VAUX is unused), though efficiency degrades at high boost ratios. When VAUX = VIN, the device functions as a standard two-phase charge pump with doubled effective input voltage. However, splitting VIN and VAUX (e.g., 12V + 5V) improves efficiency and reduces stress on flying capacitors. The LTC3290IMSE#TRPBF datasheet confirms VAUX may equal VIN without damage.
What is the role of the BIAS pin on the LTC3290IMSE#TRPBF?
The BIAS pin on the LTC3290IMSE#TRPBF outputs a regulated 4.5V (typ) internal supply used to power internal gate drivers, comparators, and logic. It must be bypassed with a 4.7µF ceramic capacitor to GND (rated ≥6.3V). Loading or driving the BIAS pin externally violates specifications and risks instability - it is strictly for internal use, as stated in the Pin Functions section of the LTC3290IMSE#TRPBF datasheet.
Does the LTC3290IMSE#TRPBF support true shutdown with zero current draw?
No - the LTC3290IMSE#TRPBF draws 3µA (typ) from VIN and 1µA (typ) from VAUX in shutdown (EN = low), per Electrical Characteristics table. While extremely low, this is not zero. The device disables switching, regulators, and PGOOD but maintains internal bias circuitry. For true zero-IQ applications, external ideal diode or mechanical disconnect is required upstream of VIN/VAUX. The LTC3290IMSE#TRPBF prioritizes fast wake-up and reliable restart over absolute zero quiescent draw.
LTC3290IMSE#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP-EP
LTC3290IMSE#TRPBF FAQ
1.How can I place an order for LTC3290IMSE#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3290IMSE#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 LTC3290IMSE#TRPBF reliable?
The price and inventory of LTC3290IMSE#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3290IMSE#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC3290IMSE#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3290IMSE#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3290IMSE#TRPBF?
LTC3290IMSE#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3290IMSE#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 LTC3290IMSE#TRPBF?
For technical support, including LTC3290IMSE#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3290IMSE#TRPBF requirements.
6.How does Aetrix verify that LTC3290IMSE#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC3290IMSE#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 LTC3290IMSE#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC3290IMSE#TRPBF?
All LTC3290IMSE#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3290IMSE#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 LTC3290IMSE#TRPBF part is unused and in its original packaging.
Return procedure for LTC3290IMSE#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC3290IMSE#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…
