Overview

The PEB/F 2023 is a pulse width modulator circuit designed for fixed-frequency switching regulators with very low power consumption.

In telephone and ISDN-systems a high conversion yield is crucial to maintain functionality in all supply conditions via S- or U-interfaces. The PEB/F 2023 design and technology realizes high conversion efficiency and low power dissipation. The PEB/F 2023 is fully compatible with the ITU-power recommendations of the S-interface. For these reasons the PEB/F 2023 is especially suited for telephone and ISDN environments.

Features

• Switched Mode DC/DC Converter

• ITU ISDN Compatible

• Low Power Dissipation

• Supply Voltage Range 0: 8V to 16V

Supply Voltage Range 1: 12V to 80V

Supply Voltage Range 2: 22V to 90V

(pin striping selects between range 1 and range 2)

Supply Voltage Range 3, with shifting by an external zener diode: UZD+8V to UZD+90V

(minimum zener voltage UZD = 14V)

• Programmable Overcurrent Protection

• Soft Start

• Power Housekeeping Input

• Input Undervoltage Detection

• High Input Impedance (<10µA) During Undervoltage Condition

• Oscillator Synchronization Input/Output

• High Voltage Smart Power Technology 75V

• P-DSO-14/1 Package