LTC1871EMS#TRPBF The Analog Devices LTC1871EMS#TRPBF is a versatile switching controller designed for boost, flyback, and SEPIC applications. It operates over a wide input voltage range and offers high efficiency.
Mfr Part #:

LTC1871EMS#TRPBF

Available from 2 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The Analog Devices LTC1871EMS#TRPBF is a versatile switching controller designed for boost, flyback, and SEPIC applications. It operates over a wide input voltage range and offers high efficiency.
Total Stock: 59 pcs
$ Price Range: $0.78

LTC1871EMS#TRPBF Available from 2 distributors

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LTC1871EMS#TRPBF Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Features
Frequency
Function
Mounting Style
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Current
Output Phases
Output Type
Output Voltage
Storage Temperature
Supplier Device Package
Synchronous Rectifier
Tape & Reel
Topology
Voltage

LTC1871EMS#TRPBF Description

Short technical summary and product information.

The LTC1871EMS#TRPBF from Analog Devices is a current mode, boost, flyback, or SEPIC controller that drives an N-channel power MOSFET. It is designed for low to medium power applications and eliminates the need for a current sense resistor by utilizing the power MOSFET's on-resistance, thereby maximizing efficiency.

 

Key electrical specifications include a wide input voltage range of 2.5V to 36V and a nominal output voltage of 5.2V with a maximum output current of 20A. The operating frequency is programmable from 50kHz to 1MHz. It features current mode control for excellent transient response, a high maximum duty cycle of 92% (typical), and ±1% internal voltage reference.

 

This controller is suitable for battery-operated systems due to its low minimum operating supply voltage of 2.5V and a low shutdown quiescent current of 10μA. It supports user-controlled pulse skip or Burst Mode operation. For applications requiring constant frequency operation, Burst Mode can be defeated using the MODE/SYNC pin.

 

The LTC1871EMS#TRPBF is available in a compact 10-lead MSOP package, suitable for surface mount applications. It is designed for use in applications such as telecom power supplies and portable electronic equipment.

LTC1871EMS#TRPBF Quick Information

Product Type: Switching Controller
Series: LTC1871
Canonical Name: LTC1871EMS#TRPBF Current Mode Boost, Flyback and SEPIC Controller
Subcategory: PMIC - Power Management ICs

LTC1871EMS#TRPBF Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LTC1871EMS#TRPBF Estimated Pricing

Qty Low High
1+ $0.78 $0.78

Estimated market price range - modelled values for guidance only, not live distributor offers.

LTC1871EMS#TRPBF Features

  • High efficiency, no sense resistor required.
  • Wide input voltage range: 2.5V to 36V.
  • Current mode control for excellent response.
  • Programmable frequency from 50kHz to 1MHz.
  • Compact 10-MSOP package for surface mounting.

LTC1871EMS#TRPBF Applications

  • Used in boost converter circuits.
  • Suitable for flyback power supplies.
  • Ideal for SEPIC converter designs.
  • Applicable in battery-powered systems.
  • Required in high-efficiency DC/DC conversion.

LTC1871EMS#TRPBF FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the LTC1871EMS#TRPBF?

2.5V to 36V.

What package is the LTC1871EMS#TRPBF available in?

10-TFSOP, 10-MSOP (0.118", 3.00mm Width) and supplier device package 10-MSOP.

What is the operating temperature range?

-40°C to +85°C.

Can the switching frequency be programmed?

Yes, from 50kHz to 1MHz using one external resistor.

Which topologies does this controller support?

Boost, Flyback, and SEPIC.

What is the output voltage?

5.2V.

What is the maximum output current?

20A.

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