YB1682

`2A Constant Output Current
`140m RDSON Internal Power PMOSFET Switch
`Up to 92% Efficiency
`Fixed 380KHz Frequency
`Wide 3.6V to 20V Input Voltage Range
`Output Adjustable from 1.222V to 18V
`Output Current Protection
`Built in Frequency Compensation
`Built in Thermal Shutdown Function
`Built in Current Limit Function
`SOP8 Package is Available
`The Minimum Dropout up to 0.3V
`Pb-free Package

Input Voltage................................................. -0.3V to 20V
Feedback Pin Voltage.......................................-0.3V to V_IN
Enable Pin Voltage......................................... -0.3V to 12V
Switch Pin Voltage ...........................................-0.3V to V_IN
Power Dissipation .................................. Internally Limited
Operating Junction Temperature............................... 150
Storage Temperature .................................. -65 to 150
Input Voltage................................................... 3.6V to 20V
Operating Junction Temperature ................. -40 to 125
Operating Ambient Temperature.....................-40 to 85
Lead Temperature (Soldering, 10 sec)....................... 260
ESD (HBM)..................................................................2000V
Note:
Stresses greater than those listed under Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

The YB1682 is a 380 KHz fixed frequency monolithic step down switch mode regulator with a built in internal Power MOSFET. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation.

The YB1682 device includes a voltage reference, oscillation circuit, error amplifier, internal PMOS and etc.

The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function and a short circuit protection function are built inside. An internal compensation block is built in to minimize external component count. The YB1682 serves as ideal power supply units for portable devices.