DC/DC Controller, Current Mode, 2.5V to 9.8V, 1 Output, Boost, 650kHz, SOT-23-6

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

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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


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

Product Information

1 Output
Boost (Step Up)
Cut Tape
MSL 1 - Unlimited
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