供应LP6453 微源3A同步降压转换器

微源半导体 LP6453 SOT23-6(FC) 18V/3A同步BUCK开关变换器

General Description

The LP6453 is a high efficiency synchronous buck converter supporting up to 3A output current and low heat.

The LP6453 employs an adaptive constant-on-time (COT) control scheme to achieve fast load transient response and without external compensation. The external components are minimized, requiring only one inductor, two resistors, and two capacitors.

The LP6453 supports both aluminum polymer capacitors and ceramic capacitors without extra compensation components.

The LP6453 integrates PFM (Pulse Frequency Modulation) operation, which helps maintain the system efficiency at light load. The converter integrates FPWM (Forced PWM) operation, which helps achieve very small output ripple over all load range. Also integrates multiple protection functions, i.e., over-current protection (OCP), over-temperature protection (OTP), under-voltage lockout (UVLO), and short circuit protection (SCP).

Applications

● Industrial PC

● Network/digital video recorder (NVR/DVR)

● TV and TV box

● 12V Industrial bus applications

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