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LTC3604

Linear Technology
Part Number LTC3604
Manufacturer Linear Technology
Description 2.5A 15V Monolithic Synchronous Step-Down Regulator
Published Mar 18, 2010
Detailed Description FEATURES nn 3.6V to 15V Operating Input Voltage Range nn 2.5A Output Current nn Up to 95% Efficiency nn Very Low Duty Cy...
Datasheet PDF File LTC3604 PDF File

LTC3604
LTC3604

Overview
FEATURES nn 3.
6V to 15V Operating Input Voltage Range nn 2.
5A Output Current nn Up to 95% Efficiency nn Very Low Duty Cycle Operation: 5% at 2.
25MHz nn Adjustable Switching Frequency: 800kHz to 4MHz nn External Frequency Synchronization nn Current Mode Operation for Excellent Line and Load Transient Response nn User Selectable Low Ripple (20mVP-P Typical) Burst Mode® (No Load IQ = 300µA) or Forced Continuous Operation nn 0.
6V Reference Allows Low Output Voltages nn Short-Circuit Protected nn Output Voltage Tracking Capability nn Power Good Status Output nn Available in Small, Thermally-Enhanced, 16-Pin QFN (3mm × 3mm) and MSOP Packages APPLICATIONS nn Distributed Power Systems nn Lithium-Ion Battery-Powered Instruments nn Point-of-Load Power Supplies L, LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks and Hot Swap is a registered trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.
S.
Patents, including 5481178, 5847554, 6580258, 6304066, 6476589, 6774611.
LTC3604 2.
5A, 15V Monolithic Synchronous Step-Down Regulator DESCRIPTION The LTC®3604 is a high efficiency, monolithic synchronous buck regulator using a phase-lockable controlled on-time, current mode architecture capable of supplying up to 2.
5A of output current.
The operating supply voltage range is from 3.
6V to 15V, making it suitable for a wide range of power supply applications.
The operating frequency is programmable from 800kHz to 4MHz with an external resistor enabling the use of small surface mount inductors.
For switching noise sensitive applications, the LTC3604 can be externally synchronized over the same frequency range.
An internal phase-locked loop aligns the on-time of the top power MOSFET to the internal or external clock.
This unique constant frequency/ controlled on-time architecture is ideal for high step-down ratio applications that demand high switching frequencies and fast trans...


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