LTC3890MPUH-2#TRPBF

Frequency - Switching:	105kHz ~ 835kHz, 350kHz ~ 535kHz
Base Part Number:	LTC3890
Supplier Device Package:	32-QFN (5x5)
Package / Case:	32-WFQFN Exposed Pad
Operating Temperature:	-55°C ~ 150°C (TJ)
Control Features:	Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	99%
Series:	PolyPhase®
Voltage - Supply (Vcc/Vdd):	4 V ~ 60 V
Output Phases:	2
Number of Outputs:	2
Topology:	Buck, SEPIC
Output Configuration:	Positive
Function:	Step-Down, Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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The LTC3890MPUH-2#TRPBF is part of a range of PMIC (Power Management Integrated Circuit) Voltage Regulators, specifically it is a DC/DC Switching Controller, however it also includes some handy features beyond its control function.The device is a high-efficiency, single power stage, current-mode synchronous stepped down converter with an operating area limited to above 2.5V, and is capable of supplying up to 8A of continuous output current.LTC3890MPUH-2#TRPBF is designed to work as a single-stage converter to provide a step-down regulated output voltage from a wider input supply range. It can be used to replace typical flyback, forward or push-pull converters, and its application field is therefore quite broad.This technology can be used in many applications such as LED drivers, battery driven equipment, power supplies, embedded systems and high-speed data converters. It is even suitable for automotive and military applications, as it can withstand voltage transients of up to ±60V without needing a dedicated snubber circuit. The device supports a seamless \'handoff\' from PWM control to Burst Mode operation, which eliminates the need for a dedicated PFM control circuit. This translates into smaller board area for lower system costs, as well as superior power conversion efficiency.Power conversion efficiency is achieved by two key features: firstly, its advanced current-mode architecture that provides excellent loop stability and fast transient response. Secondly, the internal power switch is designed for very low conduction losses down to 0.225 ohms. It is also able to optimize power dissipation under light load conditions by automatically disabling external LDO drivers and/or IC switches. It also supports ultra-low no-load quiescent current operation and thereby ensures it meets many environmental regulations.Despite its small size, the LTC3890MPUH-2#TRPBF includes many protections such as under-voltage lockout, adjustable current limit, over-temperature shutdown, reversed-battery detection, output over-voltage protection, under-voltage protection, ultra-low ripple operation, and slew rate limitations. The device is also programmable using a few external resistors, allowing customers to maximize performances for any particular application. It offers various advanced features for ease-of-use and maximum user-friendliness, such as input-under-voltage protection, internal soft-start and input over-voltage protection.Finally, the device also provides an active output voltage balancing feature for multi-cell applications, an adjustable non-synchronous rush-in prevention mode and a low noise_mode. This ensures optimum design flexibility and makes the LTC3890MPUH-2#TRPBF the ideal choice for a wide range of applications.

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