LTC3417 LTC3417AEFE-1 LTC3417AIFE-1 LTC3417AEFE - Dual Synchronous 1.5A/1A 4MHz Step-Down DC/DC Regulator
LTC3417 LTC3417AEDHC-2 LTC3417AIDHC-2 LTC3417AEFE-2 LTC3417AIFE-2 - Dual Synchronous 1.5A/1A 4MHz Step-Down DC/DC Regulator
High Efficiency: Up to 95%
1.5A/1A Guaranteed Minimum Output Current
Synchronizable to External Clock
No Schottky Diodes Required
Programmable Frequency Operation: 1.5MHz or Adjustable From 0.6MHz to 4MHz
Low Ripple (<35mVP-P) BurstMode® Operation
IQ: 125μA in Sleep
Low RDS(ON) Internal Switches
Short-Circuit Protected
VIN: 2.25V to 5.5V
Current Mode Operation for Excellent Line and Load Transient Response
Ultralow Shutdown Current: IQ < 1μA
Low Dropout Operation: 100% Duty Cycle
Power Good Ouput
Phase Pin Selects 2nd Channel Phase Relationship with Respect to 1st Channel
Internal Soft-Start with Individual Run Pin Control
Available in Small Thermally Enhanced (5mm × 3mm) DFN and 20-Lead TSSOP Packages
The LTC3417A-2 is a dual constant frequency, synchronous step-down DC/DC converter. Intended for medium power applications, it operates from a 2.25V to 5.5V input voltage range and has a constant programmable switching frequency, allowing the use of tiny, low cost capacitors and inductors 2mm or less in height. Each output voltage is adjustable from 0.8V to 5V. Internal synchronous, low RDS(ON) power switches provide high efficiency without the need for external Schottky diodes.
A user selectable mode input allows the user to trade off ripple voltage for light load efficiency. Burst Mode operation provides high efficiency at light loads, while Pulse Skip mode provides low ripple noise at light loads. A phase mode pin allows the second channel to operate in-phase or 180° out-of-phase with respect to channel 1. Out-of-phase operation produces lower RMS current on VIN and thus lower stress on the input capacitor.
To further maximize battery life, the P-channel MOSFETs are turned on continuously in dropout (100% duty cycle) and both channels draw a total quiescent current of only 100μA. In shutdown, the device draws <1μA.
GPS/Navigation Systems
Automotive Instrumentation
PC Cards
Industrial Power Supplies
General Purpose Point of Load DC/DC
Brand Name : POCCIO
Type : Voltage Regulator
Model Number : LTC3417
Origin : CN(Origin)
Condition : New