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LINEAR TECHNOLOGY  LT3509IMSE#PBF  DC/DC Switching Regulator, Buck, 2 Output, 3.6 V to 36 V in, 32.4 V/700 mA out, 2.5 MHz, MSOP-16

LINEAR TECHNOLOGY LT3509IMSE#PBF
Technical Data Sheet (320.34KB) EN See all Technical Docs

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Product Overview

The LT3509IMSE#PBF is a dual current mode step-down Switching Regulator with internal power switches each capable of providing 700mA output current. This regulator provides a compact and robust solution for multi-rail systems in harsh environments. It incorporates several protection features including overvoltage lockout and cycle-by-cycle current limit. Thermal shutdown provides additional protection. The loop compensation components and the boost diodes are integrated on-chip. Switching frequency is set by a single external resistor. External synchronization is also possible. The high maximum switching frequency allows the use of small inductors and ceramic capacitors for low ripple. Constant frequency operation above the AM band avoids interference with radio reception, making the LT3509 well suited for automotive applications. Each regulator has an independent shutdown and soft-start control pin.
  • Overvoltage lockout protects circuit through 60V supply transients
  • Short-circuit robust
  • 95% Maximum duty cycle low dropout voltage
  • Uses small inductors and ceramic capacitors
  • Integrated boost diodes
  • Internal compensation

Product Information

Input Voltage Min:
3.6V
Input Voltage Max:
36V
No. of Outputs:
2 Output
DC / DC Converter IC Case:
MSOP
No. of Pins:
16Pins
Output Current - Output 1:
700mA
Output Current - Output 2:
700mA
Output Voltage - Output 1:
32.4V
Output Voltage - Output 2:
32.4V
Regulator Output Type:
Adjustable
Switching Frequency:
2.5MHz
Topology:
Buck (Step Down)
Operating Temperature Max:
125°C
Packaging:
Cut Tape
Product Range:
-
MSL:
MSL 1 - Unlimited
Operating Temperature Min:
-40 °C
Output Current:
700 mA
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Automotive;
  • Industrial;
  • Communications & Networking;
  • Power Management

Legislation and Environmental

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

Associated Products