HX3608 power boost chip / LN3608 Step Up Regulator

The B628 is a tiny, constant frequency, high efficiency, step-up DC/DC regulator for small, low power applications on E12 hash board. The circuit consists of a current mode PWM control loop, error amplifier, ramp compensation circuit, comparator, and power switch. The chip can work efficiently and stably in a wide load range, with a built-in 4A power switch and soft-start protection circuit. Up to 93% conversion efficiency can effectively extend battery life. The output voltage can be set by adjusting two external resistors. Includes undervoltage lockout, current limit, and thermal overload protection to prevent damage in the event of an output overload.

Features:

Efficiency up to 92%

The output voltage can be raised to 28V

Input voltage range 2-24V

1.2MHz Fixed Switching Frequency

Automatic PWM/PFM switching mode

Power path supports short circuit protection

Integrated 80mΩ power MOSFET

Available in 6-Pin SOT-23 Package

Uses:

Digital Set Top Box (STB)

Tablet PC (Pad)

LCD Bias Supply

Battery powered equipment

Portable Media Player (PMP)

General purpose

Whatsminer M30+ and M30++ 17V boost chip