Switch DC/DC convert circuit

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H9118B

The H9118B is a low-EMI, synchronous buck converter with integrated power MOSFETs. It delivers up to 2A continuous output current across a wide input voltage range with excellent load and line regulation. The H9118B uses precision-controlled switch edge technology to minimize EMI. Comprehensive protection includes programmable output over-voltage protection (OVP), constant on-time (COT) control, and thermal shutdown (TSD). H9118B is housed in a TSOT23-6 package and requires only a few external components to achieve a compact, efficient and stable power solution.

SSP9492

SSP9492 is a monolithically integrated switched-off step-down constant-voltage driver with programmable output current, which can operate over a wide input voltage range and has excellent load and linearity regulation. Safety protection mechanisms of SSP9492 include peak current limiting per cycle, soft-start, over-voltage protection, temperature protection and short circuit protection, etc. It is very suitable for wide voltage input buck use. The unique soft-switching ZVS technology combined with the super junction medium-voltage MOSFET enables efficiency up to 93%. It supports typical circuit applications such as input 48V output 12V/2.5A, input 19V output 5V/4A, input 85V output 12V/2A, input 12V output 5V/3A.

SSP9323

SSP9323 is a high frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to provide a 3A continuous output current over a wide input supply range, with excellent load and line regulation. COT PSM control operation provides very fast transient response and easy loop design as well as very tight output regulation. The RY9320 requires a minimal number of readily available, external components and is available in a space saving ESOP-8 package.

SSP9322

SSP9322 is a high frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to provide a 2A continuous output current over a wide input supply range, with excellent load and line regulation. COT PSM control operation provides very fast transient response and easy loop design as well as very tight output regulation. The RY9320 requires a minimal number of readily available, external components and is available in a space saving SOT23-6 package.

SSP9302

The SSP9302 is a compact 5V Buck Converter which can deliver 1A output current.SSP9302 employs a proprietary control loop to achieve a fast transient load response. It keeps high converting efficiency in both light load and heavy load. SSP9302 is equipped with all kinds of protection, such as input over voltage protection, output short circuit protection, over current protection and over temperature protection.SSP9302 is consists of internal power tree generator, bandgap voltage reference module, under-Voltagelockout (UVLO) module, error amplifier, protection circuitry, driver block, current sensing block and two power MOSFETs.SSP9302 is housed in a SOT23-5 package.