AZ1117B_07 Datasheet, PDF (1/15 Pages) BCD Semiconductor Manufacturing Limited – 800mA LOW DROPOUT LINEAR REGULATOR

600mA LOW DROPOUT LINEAR REGULATOR
800mA LOW DROPOUT LINEAR REGULATOR
General Description
Features
Preliminary Datasheet
APA1P121371M7
AZ1117B
The AZ1117B is a low dropout three-terminal regula- _{· Low Dropout Voltage: 1.2V at 800mA Output}
tor with a dropout of 1.2V at 800mA output current.
Current
· Output Noise from 10Hz to 10KHz: 0.003% of
The AZ1117B has been optimized for low voltage
V_OUT
where transient response and minimum input voltage
are critical. It provides current limit and thermal shut-
·
PSRR at I_OUT=300mA and f=120Hz: 70dB
down. Its circuit includes a trimmed bandgap reference ^{· Output Voltage Accuracy: ±1%}
to assure output voltage accuracy to be within ±1%. ^{· On-chip Thermal Shutdown}
On-chip thermal shutdown provides protection against · Maximum Quiescent Current: I_QMAX=6mA
a combination of high current and ambient temperature _{· Operation Junction Temperature: -20 to 105}o_C
that would create excessive junction temperature.
The AZ1117B is available in 1.8V, 2.5V and 3.3V ver-
sions. The fixed versions integrate the adjust resistors.
It is also available in an adjustable version which can
set the output voltage with two external resistors.
The AZ1117B is available in the industry-standard
SOT-223 power package.
Applications
· USB Device
· Add-on Card
· DVD Player
· PC Motherboard
Mar. 2007 Rev. 1. 2
SOT-223
Figure 1. Package Type of AZ1117B
BCD Semiconductor Manufacturing Limited
1