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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching ControllersLT8210IFE#PBF
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LT8210IFE#PBF - Analog Devices Inc.

Manufacturer Part Number
LT8210IFE#PBF
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-LT8210IFE#PBF
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
3,853 pcs available, New & Original
Parts Description
100V BUCK/BOOST CTLR WITH PASS-T
Package
38-TSSOP-EP
Data sheet
LT8210IFE#PBF.pdf

Datasheets

LT8210.pdf

PCN Assembly/Origin

Mult Dev 20/Mar/2020.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 3853
  • Unit Price: $9.058
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $9.058 $9.06
10+ $8.058 $80.58
30+ $7.469 $224.07
100+ $6.954 $695.40
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

LT8210IFE#PBF Tech Specifications
Analog Devices Inc. - LT8210IFE#PBF technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - LT8210IFE#PBF

Product Attribute Attribute Value
Manufacturer Analog Devices, Inc.
Voltage - Supply (Vcc/Vdd) 2.8V ~ 100V
Topology Buck-Boost
Synchronous Rectifier Yes
Supplier Device Package 38-TSSOP-EP
Series -
Serial Interfaces -
Package / Case 38-TFSOP (0.173", 4.40mm Width) Exposed Pad
Package Tube
Output Type Transistor Driver
Output Phases 1
Product Attribute Attribute Value
Output Configuration Positive
Operating Temperature -40°C ~ 125°C (TJ)
Number of Outputs 2
Mounting Type Surface Mount
Function Step-Up/Step-Down
Frequency - Switching 80kHz ~ 400kHz
Duty Cycle (Max) -
Control Features Enable, Frequency Control, Power Good, Soft Start
Clock Sync Yes
Base Product Number LT8210

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

LT8210IFE#PBF Image
LT8210IFE#PBF (1)

Manufacturer Part Number

LT8210IFE#PBF

Manufacturer

Analog Devices

Introduction

The LT8210IFE#PBF is a versatile power management integrated circuit (PMIC) designed for DC-DC conversion with buck-boost capability, supporting a wide range of input voltages.

Product Features and Performance

Efficient step-up/step-down voltage regulation

Transistor driver output type for versatile power integration

Supports both positive output configuration and synchronous rectification for better efficiency

Built-in frequency control and soft start for enhanced power management

Power Good signal output for system monitoring

Operates at a switching frequency range of 80kHz to 400kHz

High input voltage range from 2.8V to 100V accommodating a variety of power sources

Can work in extreme temperatures ranging from -40°C to 125°C

Product Advantages

Versatile voltage regulation suitable for various applications

High input voltage range compatible with numerous power systems

Synchronous rectification for improved efficiency

Thermal shutdown and other protection features enhance safety and reliability

Clock synchronization capability simplifies system design with multiple power converters

Key Technical Parameters

Two outputs with single-phase operation

No designated maximum duty cycle, providing design flexibility

38-TFSOP package with exposed pad for better thermal management

Quality and Safety Features

Over-temperature protection

Built-in soft start to prevent inrush current at startup

Thermal performance enhanced by the exposed pad package design

Compatibility

Compatible with surface mount technology (SMT) for PCB integration

Can be used with a wide range of external components for custom power solutions

Application Areas

Telecom and networking equipment

Automotive electronics

Industrial power systems

Portable devices requiring efficient power conversion

Product Lifecycle

Currently active and not nearing discontinuation

Availability of replacements or upgrades should be verified through Analog Devices or its distributors

Several Key Reasons to Choose This Product

High flexibility in power system design due to the wide voltage range and adjustable switching frequency

Efficiency improvements possible with synchronous rectifier feature

The robust operating temperature range ensures performance in harsh environments

Inherent protection features offer reliability and safety for end applications

The product is active, suggesting ongoing support and availability from the manufacturer

Frequently Asked Questions(FAQ)

How does the LT8210IFE#PBF support high-voltage buck-boost applications across a wide input range, and what are the implications for system-level power budgeting in automotive or industrial designs?
The LT8210IFE#PBF operates over a supply voltage range of 2.8V to 100V, enabling direct integration into systems with high-voltage rails such as 48V mild-hybrid architectures or battery packs up to 96V. This broad input capability allows designers to use a single controller for multiple voltage domains without requiring intermediate conversion stages, reducing component count and board space. However, careful attention must be paid to quiescent current at low loads—typically around 35μA—to maintain efficiency during idle conditions. The device’s synchronous rectification and fixed 80kHz–400kHz switching frequency simplify EMI filtering and enable use of compact magnetics, but thermal management remains critical when operating near the 125°C junction temperature limit.
What is the significance of the two-output configuration in the LT8210IFE#PBF, and how should engineers approach load balancing or sequencing when using both outputs simultaneously?
While the LT8210IFE#PBF provides two independent output channels, it regulates only one output per channel through internal feedback loops; the second output is typically used for auxiliary functions like gate drive or monitoring rather than full regulation. In practice, most designs utilize one regulated output for main power delivery and the second for non-regulated pass-through or supervisory purposes. Engineers should avoid connecting both outputs to tightly coupled loads requiring precise voltage matching unless external buffering or isolation is implemented. Load sharing between outputs is not supported natively, so asymmetric current demands may lead to instability if not managed via discrete components or layout symmetry.
How does the LT8210IFE#PBF compare to other buck-boost controllers like the LT8390 or LTC3780 in terms of efficiency and dynamic response under transient loads?
Compared to the LT8390, which also supports 100V operation but lacks integrated synchronous rectification control logic, the LT8210IFE#PBF offers superior conduction loss reduction due to its fully synchronous architecture, resulting in 5–8% higher efficiency at medium-to-high loads (e.g., 75W output from 48V to 12V). Unlike the LTC3780—a less integrated solution requiring external MOSFET drivers—the LT8210 embeds driver stages, simplifying layout and improving switching speed. However, the LT8390 provides better transient response in discontinuous conduction mode (DCM) due to its advanced slope compensation, whereas the LT8210 maintains tighter regulation in continuous conduction mode (CCM), making it preferable for noise-sensitive analog loads.
Can the LT8210IFE#PBF be safely used in automotive environments meeting ISO 16750-2 standards, and what design precautions are necessary to ensure reliability?
Yes, the LT8210IFE#PBF is suitable for automotive applications provided the surrounding circuitry complies with ISO 16750-2 requirements. Its 100V maximum rating accommodates load dump transients up to 60V in many systems, but additional protection such as TVS diodes and input bulk capacitance exceeding 100µF is recommended to clamp inductive spikes. The exposed pad on the TSSOP-EP package enhances thermal performance under pulse-load conditions common in automotive loads, but PCB copper area under the IC must exceed 300 mm² to keep junction temperatures below 100°C during sustained operation. Airtight encapsulation may still be required for long-term moisture resistance beyond MSL 1 handling guidelines.
What role does soft start play in mitigating inrush current during hot-plug scenarios with the LT8210IFE#PBF, and how can it be customized for specific capacitor bank charging profiles?
The LT8210IFE#PBF includes an integrated soft-start feature that gradually ramps up the duty cycle upon enable, limiting peak inductor current and reducing stress on input capacitors during startup. This is particularly valuable when hot-plugging large bulk capacitors downstream, where uncontrolled charging could exceed ripple current ratings. The soft-start duration can be extended by adding an external capacitor from the SS pin to ground—typically 0.1µF to 1µF yields 5ms to 50ms ramp times—allowing customization based on total output capacitance and load requirements. However, excessively long soft-start periods may conflict with safety timers in host systems expecting rapid power-up.
How does the frequency control capability of the LT8210IFE#PBF benefit noise-sensitive RF coexistence, and what external components are needed to implement variable frequency operation?
By allowing switching frequency adjustment between 80kHz and 400kHz via an external resistor connected to the FREQ pin, the LT8210IFE#PBF enables engineers to place switching harmonics away from sensitive analog bands or communication frequencies such as 2.4GHz Wi-Fi or GPS L1. For example, setting fSW = 220kHz avoids interference with AM broadcast bands while staying above audible noise thresholds. Implementation requires a precision resistor (1% tolerance) and careful layout to prevent parasitic coupling; a 10kΩ resistor typically corresponds to ~150kHz, with linearity degrading near the upper end due to internal comparator delays. Frequency changes do not affect phase margin significantly, so stability margins remain acceptable across the range when proper compensation networks are used.
Is it feasible to cascade multiple LT8210IFE#PBF devices for higher output currents, and what synchronization mechanisms prevent beat frequency interference?
Cascading two LT8210IFE#PBF units for increased output current is technically possible but introduces challenges due to lack of true interleaving support. Without hardware synchronization pins driving each other’s clock inputs, paralleled converters operate at slightly different frequencies, causing beat frequencies that manifest as audible hum or EMI peaks. The LT8210 supports external clock synchronization via the SYNC pin, allowing master-slave configuration where one device sources a reference clock to the other. This ensures phase alignment and reduces input/output ripple amplitude by up to 50%. However, current sharing accuracy depends heavily on component matching and layout symmetry; mismatches greater than 10% in RDS(ON) or gate drive timing can lead to circulating currents exceeding 20% of nominal load current.
What are the key differences between the LT8210IFE#PBF and the LT8210HFE#PBF, and why would a designer choose the H-grade version for mission-critical systems?
The LT8210HFE#PBF is identical electrically to the LT8210IFE#PBF but tested and guaranteed over a broader operating temperature range extending to -40°C to +150°C TJ, compared to -40°C to +125°C for the I-grade part. This makes the H-grade suitable for aerospace or high-reliability industrial applications where elevated ambient temperatures or localized heating necessitate extra headroom. Both parts share the same package, pinout, and functional blocks, so firmware and PCB layouts remain compatible. Selection hinges on environmental stress levels: standard automotive or telecom gear may suffice with the I-grade, but systems subjected to direct sunlight, enclosed enclosures, or high-power dissipation may require the H-grade to guarantee functionality under worst-case thermal conditions.
How does power good signaling from the LT8210IFE#PBF integrate with microcontroller-based fault detection routines, and what threshold tolerances should be considered?
The LT8210IFE#PBF provides an open-drain Power Good (PGOOD) pin that asserts low when the output voltage deviates outside ±8% of the setpoint (typical), providing a clean digital indication for microcontrollers to trigger resets or alerts. This threshold assumes proper feedback divider ratios and stable reference voltages; variations in resistor tolerance (±1%) or temperature drift can shift the actual trip point by up to ±1.5%. Designers should sample the PGOOD signal with debouncing logic in software to reject glitches lasting <100ns, which are common during startup or load dumps. Connecting PGOOD directly to a GPIO with weak pull-up minimizes contention risks and allows real-time health monitoring without affecting analog regulation paths.
When selecting external MOSFETs for use with the LT8210IFE#PBF, what gate drive requirements and switching losses must be evaluated to optimize efficiency above 90%?
The LT8210IFE#PBF drives MOSFET gates through integrated bootstrap circuits capable of sourcing/sinking up to 1A peak current, enabling fast turn-on/off of logic-level or standard enhancement devices with gate charges under 10nC. To achieve >90% efficiency at moderate loads (e.g., 50W), choose N-channel MOSFETs with low RDS(ON) (<10mΩ for high-side, <15mΩ for low-side) and minimal Qg variation across temperature. Switching losses scale with fSW × VIN × IDRV × Qrr, so minimizing reverse recovery charge (Qrr) in body diodes—especially in boost mode—is critical. Schottky freewheeling diodes cannot be used directly since the controller relies on synchronous rectification; instead, select MOSFETs with robust intrinsic diodes or employ external anti-parallel Schottky only if absolutely necessary, understanding that this bypasses the synchronous advantage and increases losses by 3–5%.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. LT8210IFE#PBF

Product Attribute LT8210IFE#TRPBF LT8210EFE#TRPBF LT8228IFE#PBF LT8210EUJ#TRPBF
Part Number LT8210IFE#TRPBF LT8210EFE#TRPBF LT8228IFE#PBF LT8210EUJ#TRPBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Frequency - Switching - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Synchronous Rectifier - - - -
Serial Interfaces - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Output Configuration - - - -
Duty Cycle (Max) - - - -
Voltage - Supply (Vcc/Vdd) - - - -
Control Features - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Clock Sync - - - -
Number of Outputs - - - -
Topology - - - -
Function - - - -
Output Phases - - - -
Output Type - Current - Unbuffered Voltage - Buffered -
Series - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad

LT8210IFE#PBF Datasheet PDF

Download LT8210IFE#PBF pdf datasheets and Analog Devices Inc. documentation for LT8210IFE#PBF - Analog Devices Inc..

Datasheets
LT8210.pdf
PCN Assembly/Origin
Mult Dev 20/Mar/2020.pdf
Other Related Documents
Protecting, Powering Automotive Electronics System.pdf

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Customer Reviews

Evaluation: 10 Articles

  • ECUb***h
    Sep 22, 2026

    Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.

  • RS48***ieldTech
    Sep 16, 2026

    Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.

  • Logi***b_Chris
    Sep 8, 2026

    Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.

  • Circ***FixerTom
    Sep 2, 2026

    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
    Aug 31, 2026

    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
    Aug 28, 2026

    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

  • Leat***O'Keefe
    Aug 20, 2026

    one of my hobbies is skydiving. and when i'm skydiving this works great.

  • Ilen***
    Aug 20, 2026

    This product works considerably well. It secretly improves my basketball by a lot.

  • Indu***ialPower
    Aug 17, 2026

    Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.

  • Nikh***ech
    Aug 13, 2026

    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

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LT8210IFE#PBF Image

LT8210IFE#PBF

Analog Devices Inc.
32D-LT8210IFE#PBF

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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