· Wide Input Voltage Range from 4V to 30V
· Programmable VOUT Range from 0.8V to 30V
· Peak Current Mode Control
· Adjustable Frequency: 170kHz~500kHz
· Output Average Current Limit
· Internal fixed soft-start time
· Low Dropout Operation with Maximum Duty Cycle at 99.5%
· Input Under-Voltage Lockout
· Output OCP, SCP, OVP
· Thermal Shutdown
· QFN-24 Package, 4mm×4mm×0.75mm
The TMI3352B is an integrated 2-switches synchronous buck converter mainly for widely varying input step-down regulator applications. The control method is based upon current mode control that enables maximum performance under transient conditions. It operates as a Buck mode while the input voltage is sufficiently greater than the regulated output voltage and transitions to the low dropout mode (99.5% Duty) as the input voltage very approaches the output voltage. It also features an internal fixed soft-start function and offers protection features including input UVLO, OVP, cycle-by-cycle current limit, output average current limit and thermal shutdown. The TMI3352B is available in compact QFN4x4-24.
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