LTC3871HLXE#PBF High Input Voltage Buck Regulators by Analog Devices

Status: Production
Series: LTC3871
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LTC3871/LTC3871-1 is a high performance bidirectional buck or boost switching regulator controller that operates in either buck or boost mode on demand. It regulates in buck mode from VHIGH-to-VLOW and boost mode from VLOW-to-VHIGH depending on a control signal, making it ideal for 48V/12V automotive dual battery systems. An accurate current programming loop regulates the maximum current that can be delivered in either direction. The LTC3871/LTC3871-1 allows both batteries to supply energy to the load simultaneously by converting energy from one battery to the other.Its proprietary constant-frequency current mode architecture enhances the signal-to-noise ratio enabling low noise operation and provides excellent current matching between phases. Additional features include discontinuous or continuous mode of operation, OV/UV monitors, independent loop compensation for buck and boost operation, accurate output current monitoring and overcurrent protection. The LTC3871 and LTC3871-1 have different current limit foldback characteristics.

Where to Buy

Prices starting from US$8.03

Distributor Stock
Logo for Analog Devices
Analog Devices
from US$8.03
276
in stock
Buy Now
Logo for Chip One Stop
Chip One Stop
from US$8.89
150
in stock
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Logo for Richardson RFPD
Richardson RFPD
from US$10.36
-
Buy Now

Features

Unique Architecture Allows Dynamic Regulation of Input Voltage, Output Voltage or Current
VHIGH Voltages Up to 100V
VLOW Voltages Up to 30V
Synchronous Rectification: Up to 97% Efficiency
ADI-Proprietary Advanced Current Mode Control
±1% Voltage Regulation Accuracy Over Temperature
Accurate, Programmable Output Current Monitoring and Regulation for Both Buck and Boost Operation
Selectable Buck and Boost Current Sense Limits
Programmable DRVCC/EXTVCC Optimizes Efficiency
Programmable VHIGH UV and OV Thresholds
Programmable VLOW OV Threshold
Phase-Lockable Frequency: 60kHz to 460kHz
Multiphase/Multi-ICs Operation Up to 12 Phases
Selectable CCM/DCM Modes
Thermally Enhanced 48-Lead LQFP Package

Alternative Descriptions

Bi-dir PP® Sync Buck or Boost | Analog Devices
POWER MANAGEMENT IC | Richardson RFPD


LTC3871HLXE#PBF Semiconductors - ICs by Linear Technology

DC/DC CTRL SYNC BUCK-BOOST 500KHZ LQFP

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Supply Voltage Min 1.2V
Supply Voltage Max 100V
No. of Outputs 1 Output
Duty Cycle (%) 96%
Controller IC Case Style LQFP
No. of Pins 48Pins
Switching Frequency 500kHz
Topology Synchronous Buck-Boost
Operating Temperature Min -40°C
Operating Temperature Max 150°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC3871HLXE#PBF?

Additional datasheets, footprints and schematics for LTC3871HLXE#PBF are listed on our Part Details page. You can also find images and similar parts to LTC3871HLXE#PBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LTC3871HLXE#PBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LTC3871HLXE#PBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LTC3871HLXE#PBF fall under?

The LTC3871HLXE#PBF is listed under High Input Voltage Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to LTC3871HLXE#PBF when available in the High Input Voltage Buck Regulators range under the specifications section at the bottom of the details page.

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Is the LTC3871HLXE#PBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for LTC3871HLXE#PBF have stock available?

Authorised distributors including Analog Devices, Chip One Stop and Richardson RFPD have stock available or on a lead time for LTC3871HLXE#PBF.

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