The LT1767 is a 1.25MHz monolithic buck switching regulator with features such as high efficiency, wide operating voltage range, and low power consumption. It uses current mode control to provide fast transient response and excellent loop stability.
The LT1767 is a monolithic buck switching regulator offering up to 1.5 A output current with a fixed 1.25 MHz switching frequency. It is available in MSOP (MS8) and exposed‑pad (MS8E) packages and supports fixed output voltages of 1.8 V, 2.5 V, 3.3 V and 5 V.
The document provides electrical characteristics, pin functions, typical performance graphs, and application guidelines such as capacitor selection, inductor sizing, and shutdown behavior. Package dimensions and ordering information are also included.
| Fixed Output Voltage (LT1767‑5) | 5 V (typ) |
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The SHDN pin turns off the regulator and reduces the input drain current to a few microamperes; it also provides a 1.33 V threshold that can act as an under‑voltage lockout.
For the fixed‑output versions (1.8 V, 2.5 V, 3.3 V, 5 V) the feedback pin is tied directly to the output and the required resistor network is built into the part.