Kingbor Technology Co.,Ltd
TEL:(86)0755-26508846 FAX:(86)0755-26509052
KB2301
Features
400KHz Maximum Operation Frequency
2.0V to 5.0V Output Voltage With 0.1V Step
Low Start-up Voltage: 0.8V at 1mA
2% Output Voltage Accuracy
Up to 88% Efficiency
Output current: 300mA at 2.5V input, 3.3V
output
Low Ripple and Low Noise
Output Current Extendable by External
Switch
Step-Up DC-DC Converter
General Description
The kB2301 Series are PFM step-up DC-DC
converters with very low ripple noise due to the
high operation frequency. The maximum
operation frequency is 400KHz.
Only three components are required to realize the
conversion from the battery voltage to a selected
output voltage.
A driver pin (EXT) is provided for driving
external power transistor to extend the output
current capability where large current is required.
Enable pin (EN) is also provided so that the
circuit can be powered down.
Applications
Power source for applications where a higher
voltage than the battery voltage is required
One to three cell battery devices
Power source for cameras, camcorders,
VCRs, PDAs, pagers and hand held
communication instrument
Ordering Information
KB
Package Type:
T: SOT-23-3
F: SOT-23-5
E: SOT-89
Output Voltage:
20: 2.0V
21: 2.1V
49: 4.9V
50: 5.0V
External switch
E: use external switch
L: use internal switch
Typical Applications
1
KINGBOR [ KINGBOR TECHNOLOGY CO ]
