LTC3861EUH-1#PBF Multiple Output Buck Regulators by Analog Devices

Status: Production
Series: LTC3861-1
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LTC3861-1 is a dual PolyPhase® synchronous stepdown switching regulator controller for high current distributed power systems, digital signal processors, and other telecom and industrial DC/DC power supplies. It uses a constant-frequency voltage mode architecture combined with very low offset, high bandwidth error amplifiers and a remote output sense differential amplifier for excellent transient response and output regulation.The controller incorporates lossless inductor DCR current sensing to maintain current balance between phases and to provide overcurrent protection. The chip operates from a VCC supply between 3V and 5.5V and is designed for stepdown conversion from VIN between 3V and 24V to output voltages between 0.6V and VCC – 0.5V.Inductor current reversal is disabled during soft-start to safely power prebiased loads. The constant operating frequency can be synchronized to an external clock or linearly programmed from 250kHz to 2.25MHz. Up to six LTC3861-1 controllers can operate in parallel for 1-, 2-, 3-, 4-, 6- or 12-phase operation.The LTC3861-1 is pin-to-pin compatible with the LTC3860. It is available in a 32-pin 5mm × 5mm QFN package. The LTC3861is a 36-pin QFN version of the LTC3861-1, which has dual differential output voltage sense amplifiers. # Diff Amps Config Pin Package LTC3861 2 Yes 5 x 6 QFN-36 LTC3861-1 1 No 5 x 5 QFN-32

Where to Buy

Prices starting from US$3.32

Distributor Stock
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Analog Devices
from US$3.32
146
in stock
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Richardson RFPD
from US$4.28
-
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Features

Operates with Power Blocks, DrMOS or External Gate Drivers and MOSFETs
Constant-Frequency Voltage Mode Control with Accurate Current Sharing
±0.75% 0.6V Voltage Reference
Differential Remote Output Voltage Sense Amplifier
Multiphase Capability—Up to 12-Phase Operation
Programmable Current Limit
Safely Powers a Prebiased Load
Programmable or PLL-Synchronizable Switching Frequency Up to 2.25MHz
Lossless Current Sensing Using Inductor DCR or Precision Current Sensing with Sense Resistor
VCC Range: 3V to 5.5V
VIN Range: 3V to 24V
Power Good Output Voltage Monitor
Output Voltage Tracking Capability
Programmable Soft-Start
Available in a 32-Pin 5mm × 5mm QFN Package

Alternative Descriptions

2x, MP Buck V Mode DC/DC Cntr | Analog Devices
POWER MANAGEMENT IC | Richardson RFPD


LTC3861EUH-1#PBF Semiconductors - ICs by Linear Technology

BUCK CNTRL DUAL 12PH 2.25MHZ 32QFN

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

Specifications

Input Voltage 24V
Output Voltage 5.5V
Output Current 60A
Supply Voltage Min 3V
Supply Voltage Max 5.5V
Controller IC Case Style QFN
No. of Pins 32Pins
Frequency 2.25MHz
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Operating Temperature Range -40°C to +125°C
Supply Voltage Range 3V to 5.5V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC3861EUH-1#PBF?

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What category does LTC3861EUH-1#PBF fall under?

The LTC3861EUH-1#PBF is listed under Multiple Output Buck Regulators.

Can I view similar or alternative parts?

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Is the LTC3861EUH-1#PBF RoHS compliant?

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

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Authorised distributors including Analog Devices and Richardson RFPD have stock available or on a lead time for LTC3861EUH-1#PBF.

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