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LTC3638EMSE#PBF - 

DC-DC Switching Buck (Step Down) Regulator, Adjustable, 4V-140Vin, 800mV-140Vout, 250mAout, MSOP-16

LINEAR TECHNOLOGY LTC3638EMSE#PBF
LINEAR TECHNOLOGY LTC3638EMSE#PBF

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Manufacturer Part No:
LTC3638EMSE#PBF
Order Code:
2396696
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LTC3638EMSE#PBF is a 140V 250mA step-down DC/DC Regulator with an internal high side power switch that draws only 12µA DC supply current while maintaining a regulated output voltage at no load. The LTC3638 can supply up to 250mA load current and features a programmable peak current limit that provides a simple method for optimizing efficiency and for reducing output ripple and component size. The LTC3638's combination of Burst Mode® operation, integrated power switch, low quiescent current and programmable peak current limit provides high efficiency over a broad range of load currents. With its wide input range of 4 to 140V and programmable overvoltage lockout, the LTC3638 is a robust regulator suited for regulating from a wide variety of power sources. Additionally, the LTC3638 includes a precise run threshold and soft-start feature to guarantee that the power system start-up is well-controlled in any environment.
  • Internal low resistance power MOSFET
  • No compensation required
  • Adjustable 20 to 250mA maximum output current
  • Low dropout operation (100% duty cycle)
  • Low quiescent current (12µA)
  • Wide output range (0.8V to VIN)
  • 0.8V ±1% Feedback voltage reference
  • Precise RUN pin threshold
  • Internal or external soft-start
  • Programmable 1.8, 3.3, 5V or adjustable output
  • Few external components required
  • Programmable input overvoltage lockout

Applications

Industrial, Medical, Power Management, Portable Devices, Automotive, Avionics

Product Information

:
Buck (Step Down)
:
4V
:
140V
:
1Outputs
:
MSOP
:
16Pins
:
250mA
:
800mV
:
140V
:
-
:
125°C
:
Each
:
-
:
-
:
MSL 1 - Unlimited
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