The LTM4609EV#PBF is a high efficiency buck-boost DC/DC μModule (Power Module) Regulator with switching controller, power FETs and support components. Operating over an input voltage range of 4.5 to 36V, the LTM4609 supports an output voltage range of 0.8 to 34V, set by a resistor. This high efficiency design delivers up to 4A continuous current in boost mode (10A in buck mode). Only the inductor, sense resistor, bulk input and output capacitors are needed to finish the design. The high switching frequency and current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The LTM4609 can be frequency synchronized with an external clock to reduce undesirable frequency harmonics. Fault protection features include overvoltage and fold back current protection.
- Single inductor architecture allows VIN above, below or equal to VOUT
- High efficiency up to 98%
- Current mode control
- Power good output signal
- 200 to 400kHz Phase-lockable fixed frequency
- Ultrafast transient response
- Current fold back protection
- Output overvoltage protection
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