Kingbor Technology Co.,Ltd
TEL:(86)0755-26508846 FAX:(86)0755-26509052
KB2301
Step-Up DC-DC Converter
Features
General Description
yꢀ400KHz Maximum Operation Frequency
yꢀ2.0V to 5.0V Output Voltage With 0.1V Step
yꢀLow Start-up Voltage: 0.8V at 1mA
yꢀ2% Output Voltage Accuracy
yꢀUp to 88% Efficiency
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.
yꢀOutput current: 300mA at 2.5V input, 3.3V
output
A driver pin (EXT) is provided for driving
external power transistor to extend the output
current capability where large current is required.
yꢀLow Ripple and Low Noise
yꢀOutput Current Extendable by External
Switch
Enable pin (EN) is also provided so that the
circuit can be powered down.
Applications
yꢀPower source for applications where a higher
voltage than the battery voltage is required
Ordering Information
yꢀOne to three cell battery devices
; ; ; ;
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KB
yꢀPower source for cameras, camcorders,
VCRs, PDAs, pagers and hand held
communication instrument
Package Type:
T: SOT-23-3
F: SOT-23-5
E: SOT-89
Output Voltage:
20: 2.0V
21: 2.1V
Ă
49: 4.9V
50: 5.0V
External switch
E: use external switch
L: use internal switch
Typical Applications
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