MIC3809YMM-TR

Frequency - Switching:	200kHz
Base Part Number:	MIC3809
Supplier Device Package:	8-MSOP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Frequency Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	49%
Series:	--
Voltage - Supply (Vcc/Vdd):	2 V ~ 14 V
Output Phases:	1
Number of Outputs:	1
Topology:	Full-Bridge, Half-Bridge, Push-Pull
Output Configuration:	Positive, Isolation Capable
Function:	Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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MIC3809YMM-TR: PMIC - Voltage Regulators - DC DC Switching Controllers

The MIC3809YMM-TR is a DC-DC switching controller from Micrel, Inc., a leader in Integrated Circuit (IC) design and digital signal processing. The device is designed to provide efficient and accurate operation in a variety of switch-mode power supplies and switching converters. It features integrated voltage, current, and temperature sensing, as well as programmable mode switching. This DC-DC switching controller provides the user with a wide range of adjustable power efficiency options and can support high current applications.

Application Fields

The MIC3809YMM-TR's application fields include various power supplies which are used in many kinds of fields, such as in household appliances, portable electronics, industrial control systems, and automobiles. It is appropriate for a variety of DC/DC switching voltage converters and other switch-mode power supplies . The device is also suitable for lithium-ion battery charging due to its low start-up current and low quiescent current.

Working Principle

The working principle of the MIC3809YMM-TR allows the user to adjust the device's operating parameters to optimize the power supply's efficiency for their specific application. The device is operated with an external MOSFET, which controls the power transfer between two voltage sources. The device features programmable current sharing and mode switching, which can be configured to suit various conditions. The device also features integrated current and temperature sensing, as well as a low start-up current and a low quiescent current.The MIC3809YMM-TR also has an adjustable Start-up Duration feature, which allows the user to configure the duration of the initialization cycle and thus optimize the power efficiency. Furthermore, this device is compatible with most digital controllers and includes a Power Good output for status monitoring.

Benefits

The main benefits of using the MIC3809YMM-TR include efficient and accurate operation in various switch-mode power supplies and switching converters. The device allows adjustable current sharing and mode switching to suit various conditions, while also providing integrated current and temperature sensing. Additionally, it has a low start-up current and a low quiescent current, as well as an adjustable start-up duration to optimize power efficiency.The MIC3809YMM-TR is also compatible with most digital controllers and has a Power Good output for status monitoring. By using this device, the user can ensure efficient and accurate power supply operation, as well as having the confidence that their power supply is operating at an optimum level for the application.

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