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Product Detailed Parameters
- Description：IC REG CTRLR MULT TOPOLOGY 8MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Transistor Driver
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive, Isolation Capable
- Topology：Boost, Cuk, Flyback, SEPIC
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：1.9V ~ 18V
- Frequency - Switching：300kHz
- Duty Cycle (Max)：92%
- Synchronous Rectifier：No
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Enable
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-MSOP
- Grade：-
- Qualification：-
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Overview
The LT1619EMS8#TRPBF is a low-voltage current mode PWM controller manufactured by Analog Devices Inc. It operates within an input voltage range of 1.9V to 18V, making it suitable for battery-powered applications. The device features a fixed switching frequency of 300kHz and supports a maximum duty cycle of 92%. It is housed in an MSOP-8 package and is designed for boost, flyback, and SEPIC converter topologies.
Feature Summary
- Supports multiple DC/DC converter topologies including boost, flyback, and SEPIC configurations.
- Operates with a wide input voltage range from 1.9V to 18V.
- Features a high maximum duty cycle of 92% for efficient power conversion.
Applications
- Battery-powered portable electronics
- Industrial distributed DC/DC power systems
- Low voltage step-up or inverted power supplies
Procurement Notes
Verify the specific suffix TRPBF indicates tape-and-reel packaging when sourcing. Confirm the manufacturer designation as Analog Devices Inc., formerly Linear Technology. Ensure the component matches the MSOP-8 package outline for PCB layout compatibility. Check for RoHS compliance status if required by assembly standards.
Selection Notes
Select this controller for designs requiring operation below 2V input voltage. Consider the 300kHz fixed frequency for EMI management and passive component sizing. Evaluate the 92% duty cycle limit against the required voltage conversion ratio. Ensure the application utilizes current mode control architecture for stability.
Part Context
This component belongs to the LT1619 series of low-voltage PWM controllers. It is part of Analog Devices' portfolio of power management integrated circuits designed for efficiency in small form factors. The series targets applications where standard controllers cannot operate at very low input voltages.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical specifications carefully if considering alternative controllers from other manufacturers.
