LTC3890-3 - 2-Phase Synchronous Step-Down DC/DC Controller

Description

The LTC®3890-3 is a high performance dual step-down switching regulator DC/DC controller that drives all N-channel synchronous power MOSFET stages.

A constant frequency current mode architecture allows a phaselockable frequency of up to 850kHz.

n Wide VIN Range: 4V to 60V (65V Abs Max) n Low Operating IQ: 50µA (One Channel On) n Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24V n RSENSE or DCR Current Sensing n Out-of-Phase Controllers Reduce Input Capacitance and Power Supply Induced Noise n Phase-Lockable Frequency (75kHz to 850kHz) n Programmable Fixed Frequency (50kHz to 900kHz) n Selectable Continuous, Pulse-Skipping or Low Ripple Burst Mode® Operation at Light Loads n Very Low Dropout Operation: 99% Duty Cycle n Adjustable O.

Part number	LTC3890-3
Manufacturer	Linear Technology (now Analog Devices)
File Size	913.78 KB
Description	2-Phase Synchronous Step-Down DC/DC Controller
Datasheet	LTC3890-3 Datasheet
Additional preview pages of the LTC3890-3 datasheet.

LTC3890-2 - 2-Phase Synchronous Step-Down DC/DC Controller (Linear Technology)
LTC3890 - 2-Phase Synchronous Step-Down DC/DC Controller (Analog Devices)
LTC3890 - 2-Phase Synchronous Step-Down DC/DC Controller (Linear Technology)
LTC3891 - 60V Synchronous Step-Down Controller (Linear Technology)
LTC3892 - 2-Phase Synchronous Step-Down DC/DC Controller (Linear Technology)
LTC3892-1 - 2-Phase Synchronous Step-Down DC/DC Controller (Linear Technology)
LTC3892-2 - 2-Phase Synchronous Step-Down DC/DC Controller (Analog Devices)
LTC3894 - Step-Down DC/DC Controller (Analog Devices)
LTC3897 - PolyPhase Synchronous Boost Controller (Analog Devices)
LTC3897-2 - Synchronous Boost Controller (Analog Devices)

Other Datasheets by Linear

Click to expand full text

Features n Wide VIN Range: 4V to 60V (65V Abs Max) n Low Operating IQ: 50µA (One Channel On) n Wide Output Voltage Range: 0.

Published: Apr 15, 2016 |