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Products > BlueChips > Micro Power Charge Pump DC/DC Converter
Micro Power Charge Pump DC/DC Converter
High Current Step Down DC/DC Converter | LED Display Driver | PLL for AM/FM Radio | White LED Driver | Micro Power Charge Pump DC/DC Converter | Charge Pump DC/DC | Power Supply Controls | Power Supply Controls - Current Mode Controller | SMPS Output Monitor and Linear Regulator |

>> BCT92 Family

 

BCT92 Family

Micro Power Charge Pump DC/DC Converter

General Description

The BCT9230M/BCT9233M/BCT9236M/BCT9250M are general purpose charge pump DC/DC converters which generate a range of fixed regulated output voltage from 3.0V to 5.0V. The BCT9230M/ BCT9233M/BCT9236M can accept wide input voltage ranging from 0.9V to 4.5V where applications using standard batteries, standard Li-ion or NiMH/NiCd rechargeable batteries are preferred.

The BCT9230M/BCT9233M/BCT9236M/BCT9250M will step up the output voltage automatically from lower input voltage, In additional; they can also regulate the output voltage when the input voltage is greater than the output voltage. A variety of switching control will be adapted by an internal input adaptation circuitry which will generate a required output voltage with respect to the input voltage level.

A high efficiency and space saving DC/DC converter can be easily built by incorporating external SMT ceramic capacitors. No choke coil and schottky diode are required.

Features
  • Charge pump DC/DC converter with 500KHz switching frequency
  • Wide input voltage range:
  • 0.9V to 4.5V (1.4 to 4.5V for BCT9250M)
  • Fixed regulated output voltage:
    BCT9230M: 3V
    BCT9233M: 3.3V
    BCT9236M: 3.6V
    BCT9250M: 5V
  • Low power consumption
  • Available in Pb-free MSOP8 or die
Applications
  • 2 x 1.5V Batteries to 3V regulator
  • 1 x 1.5V Battery to 3V Step-up regulator
  • DC/DC converter for battery powered products (Handheld Electronics, PDAs, Toys)

 

Typical Application Circuit

 

 

 

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