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Product Detailed Parameters
- Description：IC REG CTRLR MULT TOPOLOGY 8SOIC
- 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-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SO
- Grade：-
- Qualification：-
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Overview
The LT1619ES8#TRPBF is a fixed-frequency current mode PWM controller manufactured by Analog Devices Inc. It supports boost, Cuk, flyback, and SEPIC topologies with a single positive or isolated output. The device operates within an input voltage range of 1.9V to 18V and features a switching frequency of 300kHz. It offers a maximum duty cycle of 92% and includes clock synchronization capabilities. The component is housed in an 8-SOIC package and functions across a temperature range of -40°C to 85°C.
Feature Summary
- Supports multiple DC/DC converter topologies including boost, Cuk, flyback, and SEPIC configurations.
- Enables precise control through internal current mode PWM architecture with clock synchronization.
- Operates efficiently over a wide input voltage range suitable for battery-powered applications.
Applications
- Battery-powered portable electronic devices
- Distributed DC/DC power conversion systems
- Isolated power supply designs
Procurement Notes
Verify the specific ordering suffix #TRPBF confirms the tape and reel packaging format required for automated assembly processes. Ensure the RoHS3 compliance status aligns with environmental regulations applicable to your manufacturing region. Confirm that the 8-SOIC package dimensions match your PCB footprint specifications before finalizing procurement orders.
Selection Notes
Select this controller when designing circuits requiring flexible topology support such as SEPIC or flyback converters. The 300kHz fixed frequency allows for optimized passive component sizing compared to variable frequency alternatives. Consider the 1.9V minimum operating voltage for low-voltage battery applications where standard controllers may fail to initiate operation.
Part Context
This component belongs to the LT1619 family of low voltage current mode PWM controllers designed by Analog Devices. It is engineered to minimize external component count while maintaining high efficiency in various DC/DC conversion scenarios. The ES8 designation indicates the specific 8-SOIC package variant available in tape and reel form for surface mount technology integration.
Replacement Considerations
Direct substitutes are not explicitly confirmed in public documentation. Evaluate alternative Analog Devices PWM controllers based on matching pinout compatibility and similar electrical characteristics such as input voltage range and switching frequency constraints.
