AP7333
300mA, Low Quiescent Current, Fast Transient
Low Dropout Linear Regulator
Features
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300mA Low Dropout Regulator in 3-pin package
Very low I
Q
over full load: 65µA
Wide input voltage range: 2V to 6V
Fixed output options: 1.0V to 3.3V
PSRR: 65dB typical at 100Hz
Fast start-up time: 80µs
Stable with low ESR, 1µF ceramic output capacitor
Excellent Load/Line Transient Response
Low dropout: 300mV typical at 300mA
Current limit protection
Short circuit protection
Thermal shutdown protection
Ambient temperature range: -40ºC to 85°C
SOT23 and SOT23R: Available in “Green” Molding
Compound (No Br, Sb)
Lead Free Finish/RoHS Compliant (Note 1)
Description
The AP7333 is a 300mA, fixed output voltage, low dropout linear
regulator. The device included pass element, error amplifier,
band-gap, current limit and thermal shutdown circuitry.
The characteristics of low dropout voltage and low quiescent
current make it suitable for low power applications, for example,
battery powered devices. The typical quiescent current is
approximately 65μA.
Built-in current-limit and thermal-shutdown functions prevent IC
from damage in fault conditions.
The AP7333 is available in SOT23 packages with different
pin-outs.
Applications
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XDSL Router
Wireless LAN Cards
Desktop and Notebook Computers
Battery Powered Equipments
Mouse, Keyboards
Typical Application Circuit
V
IN
IN
AP7333
1uF
GND
OUT
V
OUT
1uF
AP7333 Rev. 2
1 of 12
NOVEMBER 2009
©
Diodes Incorporated
DIODES [ DIODES INCORPORATED ]
