600mA LOW DROPOUT LINEAR REGULATOR
600mA LOW DROPOUT LINEAR REGULATOR
General Description
The AP2317 is a series of low dropout three-terminal
regulators with a dropout of 1.1V at 600mA output cur-
rent.
This product has been optimized for low voltage where
transient response and minimum input voltage are criti-
cal. The AP2317 provides current limit and thermal
shutdown. Its circuit includes a trimmed bandgap refer-
ence to assure output voltage accuracy to be within
±1%.
On-chip thermal shutdown provides protection
against any combination of overload and ambient tem-
peratures that would create excessive junction tem-
peratures.
The AP2317 is available in 2.5V and 3.3V versions.
The fixed versions integrate the corresponding resistor
divider. It is also available in an adjustable version
which can set the output voltage with two external
resistors.
The AP2317 is available in the industry standard SOT-
89-3, SOT-223 and TO-263-3 (for 3.3V only) power
packages.
Data Sheet
AP1117M
AP2317
Features
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Low Dropout Voltage: 1.1V at 600mA Output
Current
Output Noise from 10Hz to 10KHz: 0.003% of
V
OUT
PSRR at I
OUT
=300mA and f=120Hz: 75dB
Output Voltage Accuracy:
±
1%
On-chip Thermal Shutdown
Maximum Quiescent Current
:
I
QMAX
=5mA
ESD (Human Body Model): 3.5KV
Operation Junction Temperature: -40 to 125
o
C
Applications
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DVD/CD-ROM
USB Device
Add-on Card
DVD Player
PC Motherboard
SOT-89-3
SOT-223
TO-263-3
Figure 1. Package Types of AP2317
Mar. 2007 Rev. 1. 6
1
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
