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LINEAR TECHNOLOGY  LTC1771ES8#PBF  DC/DC Controller, High Efficiency, Current Mode, 2.8V to 18V, 1 Output, Buck, SOIC-8

LINEAR TECHNOLOGY LTC1771ES8#PBF
Manufacturer Part No:
LTC1771ES8#PBF
Order Code:
1273533
Technical Datasheet:
See all Technical Docs

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

Product Overview

The LTC1771ES8#PBF is a high efficiency current-mode step-down DC/DC Controller that draws as little as 10µA DC supply current to regulate the output at no load while maintaining high efficiency for loads up to several amps. The LTC1771 drives an external P-channel power MOSFET using a current-mode, constant off-time architecture. An external sense resistor is used to program the operating current level. current-mode control provides short-circuit protection, excellent transient response and controlled start-up behaviour. Burst Mode operation enables the LTC1771 to maintain high efficiency down to extremely low currents. Shutdown mode further reduces the supply current to a mere 2µA. For low noise applications, Burst Mode operation can be easily disabled with the MODE pin. Wide input supply range of 2.8V to 18V (20V maximum) and 100% duty cycle operation for low dropout make the LTC1771 ideal for a wide variety of battery-powered applications where maximizing battery life is important.
  • ±2% Output accuracy
  • Current mode operation for excellent line and load transient response
  • Defeatable burst mode operation
  • Short-circuit protected
  • Optional programmable soft-start
  • 2µA Micropower shutdown

Product Information

Supply Voltage Min:
2.8V
Supply Voltage Max:
18V
No. of Outputs:
1 Output
Duty Cycle (%):
100%
Controller IC Case Style:
SOIC
No. of Pins:
8Pins
Switching Frequency:
-
Topology:
Buck (Step Down)
Operating Temperature Min:
-40°C
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

  • Wireless
  • Portable Devices
  • Communications & Networking
  • 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):
.000175

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