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LINEAR TECHNOLOGY  LTC3440EDD#PBF  DC-DC Switching Buck-Boost Regulator, Adjustable, 2.5V-5.5Vin, 2.5V-5.5Vout, 0.6Aout, DFN-10

LINEAR TECHNOLOGY LTC3440EDD#PBF
LINEAR TECHNOLOGY LTC3440EDD#PBF
Manufacturer Part No:
LTC3440EDD#PBF
Order Code:
2295062
Technical Datasheet:
See all Technical Docs
LINEAR TECHNOLOGY LTC3440EDD#PBF
LINEAR TECHNOLOGY LTC3440EDD#PBF

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

Product Overview

The LTC3440EDD#PBF is a high-efficiency fixed frequency buck-boost DC-to-DC Converter operates from input voltages above, below or equal to the output voltage. The topology incorporated in the IC provides a continuous transfer function through all operating modes, making the product ideal for single lithium-ion, multicell alkaline or NiMH applications where the output voltage is within the battery voltage range. The device includes two 0.19R N-channel MOSFET switches and two 0.22R P-channel switches. Switching frequencies up to 2MHz are programmed with an external resistor and the oscillator can be synchronized to an external clock. Quiescent current is only 25µA in Burst Mode® operation, maximizing battery life in portable applications. Burst Mode® operation is user controlled and can be enabled by driving the MODE/SYNC pin high. If the MODE/SYNC pin has either a clock or is driven low, then fixed frequency switching is enabled.
  • Single inductor
  • No Schottky diodes required (VOUT<4.3V)
  • VOUT disconnected from VIN during shutdown
  • Synchronizable oscillator
  • Burst Mode® enable control
  • Synchronous rectification - Up to 96% efficiency
  • <1µA Shutdown current

Product Information

Topology:
Synchronous Buck-Boost
Input Voltage Min:
2.5V
Input Voltage Max:
5.5V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
DFN
No. of Pins:
10Pins
Output Current:
600mA
Output Voltage Min:
2.5V
Output Voltage Max:
5.5V
Switching Frequency:
2MHz
Operating Temperature Max:
85°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Computers & Computer Peripherals
  • Consumer Electronics
  • Portable Devices

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):
.000165

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