Description

The MB3881PFF-G-BND-EF-E1 is an 8-channel DC/DC converter IC that is designed for low voltage, high efficiency, and compactness. It utilizes pulse width modulation (PWM) and synchronous rectification, enabling the use of step-up/step-down Zeta methods. With a low start-up voltage of 1.8V (CH8), the IC can provide a wide range of supply voltages for advanced portable equipment such as camera integrated VTR. The MB3881PFF-G-BND-EF-E1 contains a triangular wave oscillator that can operate in synchronization with an external device for reducing switching noise and facilitating system configuration. The LQFP-64P package with a compact body size of 7x7mm makes this IC an ideal solution for space-constrained applications.

Specifications and Features

• 8-channel, step-up/step-down type of DC/DC converter IC
• Pulse width modulation (PWM) and synchronous rectification
• Supports the step-up/step-down Zeta methods (CH1 to CH7)
• Supports synchronous rectification (CH1, CH2)
• Low start-up voltage of 1.8V (CH8)
• Power-supply voltage range of 4V to 13V (CH1 to CH7)
• Built-in high-precision reference voltage generator of 2.5V ±1%
• Oscillation frequency range of 100kHz to 800kHz
• Built-in triangular wave oscillator capable of external synchronization
• Error amplifier output for soft start (CH1 to CH4, CH7)

Application Scenarios

The MB3881PFF-G-BND-EF-E1 is best suited for the power supply for advanced portable equipment such as camera integrated VTR. It can be used in other applications that require low voltage, high efficiency, and compactness.

Comparison

• Low start-up voltage of 1.8V (CH8)
• Wide range of power-supply voltage from 4V to 13V (CH1 to CH7)
• 8-channel support for step-up/step-down Zeta methods and synchronous rectification
• Built-in high-precision reference voltage generator and triangular wave oscillator capable of external synchronization

• The built-in error amplifier output is only available for CH1 to CH4 and CH7