BCT9010S/BCT9020AS/BCT9035AS

Charge Pump DC/DC Converter with Programmable Regulated Voltage

General Description

The family of BCT9010S/BCT9020AS/BCT9035AS are general purpose charge pump DC/DC converters with programmable regulated voltage. The BCT9010S/ BCT9020AS/BCT9035AS has wide input voltage ranging from 1.8V to 3.6V which is designed for use in low cost application where standard batteries or NimH/NiCd rechargeable batteries are preferred. This family provides maximum dc output current ranging from 100mA to 350mA. A high efficiency and space saving 3V to 5V DC/DC converter can be easily built by incorporating external SMT capacitors and resistors. No expensive choke coil and schottky diode are needed.

Features

• Charge pump DC/DC converter with 1MHz switching frequency
• Wide input voltage range: 1.8V to 3.6V
• Maximum dc output current:
  BCT9010S: 100mA
  BCT9020AS: 200mA
  BCT9035AS: 350mA
• Programmable output voltage by external resistor divider
• Low power consumption Wide operation temperature:
  -20 °C to 70 °C
• Pb-free package

• 3V to 5V DC/DC converter for battery powered products
• Toys, Handheld Electronics, Cellular Phones, PDAs
• Mobile phone Battery charger

Typical Application Circuit