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LINEAR TECHNOLOGY  LTC1872ES6#TRMPBF  DC/DC Controller, Current Mode, 2.5V to 9.8V, 1 Output, Boost, 650kHz, SOT-23-6

LINEAR TECHNOLOGY LTC1872ES6#TRMPBF
Technical Data Sheet (259.76KB) EN See all Technical Docs

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

Product Overview

The LTC1872ES6#TRMPBF is a constant frequency current mode step-up DC/DC Controller providing excellent AC and DC load and line regulation. The device incorporates an accurate under-voltage lockout feature that shuts down the LTC1872 when the input voltage falls below 2.0V. The LTC1872 boasts ±2.5% output voltage accuracy and consumes only 270µA of quiescent current. For applications where efficiency is a prime consideration, the LTC1872 is configured for Burst Mode® operation, which enhances efficiency at low output current. In shutdown, the device draws a mere 8µA. The high 550kHz constant operating frequency allows the use of a small external inductor. The overvoltage comparator in the LTC1872 will turn the external MOSFET off when the feedback voltage has risen 7.5% above the reference voltage of 0.8V. This comparator has a typical hysteresis of 20mV.
  • High efficiency up to 90%
  • High output currents easily achieved
  • VOUT limited only by external components
  • Constant frequency 550kHz operation
  • Burst Mode® operation at light load
  • Current mode operation for excellent line and load transient response
  • Low quiescent current (270µA)
  • Shutdown mode draws only 8µA supply current
  • ±2.5% Reference accuracy

Product Information

Supply Voltage Min:
2.5V
Supply Voltage Max:
9.8V
No. of Outputs:
1 Output
Duty Cycle (%):
40%
Controller IC Case Style:
SOT-23
No. of Pins:
6Pins
Switching Frequency:
650kHz
Topology:
Boost (Step Up)
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

  • Power Management;
  • Communications & Networking;
  • Consumer Electronics;
  • Wireless;
  • Computers & Computer Peripherals;
  • Portable Devices

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Country of Origin:
Malaysia

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000033