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LINEAR TECHNOLOGY  LT3959IFE#PBF  DC/DC Controller, Current Mode, 1.6V to 40V, 1 Output, Boost, Inverting, SEPIC, 1MHz, TSSOP-38

LINEAR TECHNOLOGY LT3959IFE#PBF
Manufacturer Part No:
LT3959IFE#PBF
Order Code:
2356019
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LT3959IFE#PBF is a current-mode DC/DC Controller capable of regulating either positive or negative output voltages from a single feedback pin. It can be configured as a boost, SEPIC or inverting converter. It features an internal low side N-channel MOSFET rated for 6A at 40V and driven from an internal regulated supply provided from VIN or DRIVE. The fixed frequency, current-mode architecture results in stable operation over a wide range of supply and output voltages. The operating frequency of LT3959 can be set over a 100kHz to 1MHz range with an external resistor, or can be synchronized to an external clock using the SYNC pin. It features soft-start and frequency fold back functions to limit inductor current during start-up and output short-circuit. A window comparator on the FBX pin reports via the PGOOD pin, providing output voltage status indication.
  • Positive or negative output voltage programming with a single feedback pin
  • PGOOD output voltage status report
  • Internal 6A/40V power switch
  • Programmable soft-start
  • Synchronizable to an external clock
  • <1µA Low shutdown current
  • INTVCC Regulator supplied from VIN or DRIVE
  • Programmable input under voltage lockout with hysteresis

Product Information

Supply Voltage Min:
1.6V
Supply Voltage Max:
40V
No. of Outputs:
1 Output
Duty Cycle (%):
-
Controller IC Case Style:
TSSOP
No. of Pins:
38Pins
Switching Frequency:
1MHz
Topology:
Boost, Inverting, SEPIC
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Automotive
  • Industrial
  • Communications & Networking

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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