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LINEAR TECHNOLOGY  LTC3546IFE#PBF  DC/DC Switching Regulator, Synchronous, Dual, 2.25 V to 5.5 V in, 5 V/2 A out, 4 MHz, TSSOP-28

LINEAR TECHNOLOGY LTC3546IFE#PBF
Manufacturer Part No:
LTC3546IFE#PBF
Order Code:
2295074
Technical Datasheet:
See all Technical Docs

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Product Overview

The LTC3546IFE#PBF is a dual constant-frequency, synchronous step down DC/DC Converter for medium power applications. The design consists of 2A and 1A primary output switches. In addition to the 2A/1A capability, a 1A dependent output switch can be externally connected to either of the primary outputs to produce 3A/1A dual regulator or 2A/2A dual regulator configurations. The switching frequency can be set to 2.25MHz, adjustable from 0.75MHz to 4MHz or synchronized to an external clock. Each output is adjustable from 0.6 to 5V and has output tracking on power-up. Internal synchronous low RDS (ON) power switches provide high efficiency without external Schottky diodes. User-selectable modes (Burst Mode® operation, pulse skipping and forced continuous) allow a trade-OFF between ripple noise and power efficiency. Burst Mode operation provides high efficiency at light loads. Pulse-skipping mode provides low ripple noise at light loads.
  • No Schottky diodes required
  • Short-circuit protected
  • Current mode operation for excellent line and load transient response
  • Low ripple burst mode operation
  • Power good output for each channel
  • Externally or internally programmable burst level
  • External or internal soft-start or supply tracking
  • <1µA Ultra-low shutdown current
  • 100% Duty cycle low dropout operation

Product Information

Input Voltage Min:
2.25V
Input Voltage Max:
5.5V
No. of Outputs:
2 Output
DC / DC Converter IC Case:
TSSOP
No. of Pins:
28Pins
Output Current - Output 1:
2A
Output Current - Output 2:
2A
Output Voltage - Output 1:
5V
Output Voltage - Output 2:
5V
Regulator Output Type:
Adjustable
Switching Frequency:
4MHz
Topology:
Synchronous Buck (Step Down)
Operating Temperature Max:
125°C
Packaging:
Cut Tape
Product Range:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Wireless
  • Computers & Computer Peripherals
  • Power Management

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000426

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