Description

The RJ2411CA0PB is an IC chip belonging to the RS5RJ series that functions as a DC/DC converter equipped with a voltage regulator and voltage detector. This IC chip is designed using a CMOS process and includes a linear regulator and a voltage detector. With the use of an external inductor, diode, and capacitor, this IC functions as an output-voltage-fixed type regulator that operates as a linear regulator when the input voltage is high and as both a step-up DC/DC converter and a linear regulator when the input voltage is low, making it suitable for battery-powered and hand-held instruments. The chip enable function allows internal circuits to turn off to minimize the standby current.

Specifications and features

• Low Supply Current: TYP. 15µA (RS5RJ3624A: VIN=3.0V, at no load)
• Standby Mode: Istandby=MAX. 1.0µA (RS5RJ××××A), Istandby=MAX. 10.0µA (RS5RJ××××B)
• Low Voltage Operation: Possible Operating Voltage VIN=1.2V to 10V
• High Output Voltage Accuracy: Fixed Output Voltage Accuracy ±2.5%
• High Detector Threshold Accuracy: ±2.5%
• Output Voltage can be set at Users request (refer to Selection Guide).
• Voltage close to battery's voltage can be output because these ICs are of a step-up/step-down type (Ex. a fixed voltage of 3V can be output by a 3V battery).
• Built-in Protection Circuits for Lx Driver.
• Pin for External Driver is equipped, and a large current output can be obtained.
• Small Package: 8pin SOP

Application Scenarios

The RJ2411CA0PB IC chip is applicable for power sources for cameras, camcorders, and hand-held audio equipment, small OA apparatus such as note-type personal computers and word processors, and hand-held communication appliances such as pagers, cordless telephones, and cellular phones.

Comparison

• Low supply current
• Built-in protection circuits for Lx driver
• Small package size
• Output voltage fixed type regulators

• None stated