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LINEAR TECHNOLOGY  LTC3633AEUFD-2#PBF  DC/DC Switching Regulator, Synchronous, 2 Output, 3.6 V to 20 V in, 6 V/3 A out, 4.6 MHz, QFN-28

LINEAR TECHNOLOGY LTC3633AEUFD-2#PBF
Technical Data Sheet (413.62KB) EN See all Technical Docs

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Product Overview

The LTC3633AEUFD-2#PBF is a dual-channel high efficiency monolithic synchronous Buck Regulator uses a controlled on-time, current mode architecture, with phase lockable switching frequency. The two channels can run 180° out of phase to relax the requirements for input and output capacitance. The operating supply voltage range is from 3.6 to 20V, making it suitable for lithium-ion battery stacks as well as point of load power supply applications from a 12 or 5V supply. The operating frequency is programmable from 500kHz to 4MHz with an external resistor and may be synchronized to an external clock signal. The unique constant frequency/controlled on time architecture is ideal for high step-down ratio applications that operate at high frequency while demanding fast transient response. An internal phase locked loop servos the on-time of the internal one-shot timer to match the frequency of the internal clock or an applied external clock.
  • Up to 95% Efficiency
  • External frequency synchronization
  • Current mode operation for excellent line and load transient response
  • User Selectable Burst Mode® operation or forced continuous operation
  • Output voltage tracking and soft-start capability
  • Short-circuit protected
  • Overvoltage input and overtemperature protection
  • Power good status outputs

Product Information

Input Voltage Min:
3.6V
Input Voltage Max:
20V
No. of Outputs:
2 Output
DC / DC Converter IC Case:
QFN
No. of Pins:
28Pins
Output Current - Output 1:
3A
Output Current - Output 2:
3A
Output Voltage - Output 1:
6V
Output Voltage - Output 2:
6V
Regulator Output Type:
Adjustable
Switching Frequency:
4.6MHz
Topology:
Synchronous Buck (Step Down)
Operating Temperature Max:
125°C
Packaging:
Cut Tape
Product Range:
-
MSL:
MSL 1 - Unlimited
Operating Temperature Min:
-40 °C
Output Current:
3 A
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Power Management

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Product Traceability
RoHS Compliant:
Yes
Authorized Distributor