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LINEAR TECHNOLOGY  LTC3899EFE#PBF  DC/DC Controller, Current Mode, 4.5V to 60V, 3 Outputs, Buck/ Buck-Boost, 835kHz, HTSSOP-38

LINEAR TECHNOLOGY LTC3899EFE#PBF
Manufacturer Part No:
LTC3899EFE#PBF
Order Code:
2471080
Technical Datasheet:
See all Technical Docs

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

Product Overview

The LTC3899EFE#PBF is a high-performance triple output (buck/ buck/boost) DC/DC Switching Regulator Controller that drives all N-channel synchronous power MOSFET stages. The constant frequency current-mode architecture allows a phase-lockable frequency of up to 850kHz. It operates from a wide 4.5 to 60V input supply range. When biased from the output of the boost converter or another auxiliary supply, it can operate from an input supply as low as 2.2V after start-up. The gate drive for the controller can be programmed from 5 to 10V to allow the use of logic-level or standard-level FETs and to maximize efficiency. Internal switches in the top gate drivers eliminate the need for external bootstrap diodes. The 29µA no-load quiescent current extends operating run time in battery-powered systems. OPTI-LOOP® compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values.
  • Dual BuckPlus single boost synchronous
  • No external bootstrap diodes required
  • 3.6µA Low shutdown IQ
  • Fixed or adjustable boost output voltage saves

Product Information

Supply Voltage Min:
4.5V
Supply Voltage Max:
60V
No. of Outputs:
3 Output
Duty Cycle (%):
99%
Controller IC Case Style:
HTSSOP
No. of Pins:
38Pins
Switching Frequency:
835kHz
Topology:
Synchronous Boost, Synchronous Buck
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Automotive
  • 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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