600mA LOW DROPOUT LINEAR REGULATOR
LOW DROPOUT LINEAR REGULATOR
General Description
The AZ1117B is a low dropout three-terminal regula-
tor.
The AZ1117B has been optimized for low voltage
where transient response and minimum input voltage
are critical. It provides current limit and thermal shut-
down. Its circuit includes a trimmed bandgap reference
to assure output voltage accuracy to be within
±1%.
On-chip thermal shutdown provides protection against
a combination of high current and ambient temperature
that would create excessive junction temperature.
The AZ1117B is available in 1.2V, 1.5V, 1.8V, 2.5V,
3.3V, 5.0V fixed output voltage vesions and ADJ out-
put voltage version. The fixed versions integrate the
adjust resistors. It is also available in an adjustable ver-
sion which can set the output voltage with two external
resistors.
The AZ1117B is available in the industry-standard TO-
252-2 (1), TO-252-2 (2), TO-252-2 (3), SOT-223 and
SOT-89 power packages.
Data Sheet
AP1117M
AP2317
AZ1117B
Features
·
·
·
·
·
·
·
Current Limit: 1.0A (Typ.)
Output Noise from 10Hz to 10KHz: 0.003% of
V
OUT
PSRR at I
OUT
=300mA and f=120Hz: 70dB
Output Voltage Accuracy:
±1%
On-chip Thermal Shutdown
Maximum Quiescent Current: I
QMAX
=6mA
Operation Junction Temperature: -20 to 125
o
C
Applications
·
·
·
·
USB Device
Add-on Card
DVD Player
PC Motherboard
SOT-223
SOT-89
TO-252-2 (1)
TO-252-2 (2)
Figure 1. Package Type of AZ1117B
TO-252-2 (3)
Sept. 2011 Rev. 2. 2
1
BCD Semiconductor Manufacturing Limited
600mA LOW DROPOUT LINEAR REGULATOR
LOW DROPOUT LINEAR REGULATOR
Pin Configuration
Data Sheet
AP1117M
AP2317
AZ1117B
H Package
(SOT-223)
3
VOUT
2
1
INPUT
OUTPUT
ADJ/GND
R Package
(SOT-89)
3
VOUT
2
1
INPUT
OUTPUT
ADJ/GND
D Package
(TO-252-2 (1))
(TO-252-2 (2))
(TO-252-2 (3))
3
VOUT
2
1
INPUT
OUTPUT
ADJ/GND
3
VOUT
2
1
INPUT
OUTPUT
ADJ/ GND
3
VOUT
2
1
INPUT
OUTPUT
ADJ/GND
Figure 2. Pin Configuration of AZ1117B (Top View)
Sept. 2011 Rev. 2. 2
2
BCD Semiconductor Manufacturing Limited
600mA LOW DROPOUT LINEAR REGULATOR
LOW DROPOUT LINEAR REGULATOR
Functional Block Diagram
Data Sheet
AP1117M
AP2317
AZ1117B
3
INPUT
Thermal
Protection
-
+
2
For Adjustable Output, disconnect A1 and A2, connect B
For Fixed Output, connect A1 and A2, disconnect B
A1
B
A2
OUTPUT
1
ADJ/GND
Figure 3. Functional Block Diagram of AZ1117B
Sept. 2011 Rev. 2. 2
3
BCD Semiconductor Manufacturing Limited
600mA LOW DROPOUT LINEAR REGULATOR
LOW DROPOUT LINEAR REGULATOR
Ordering Information (Continued)
Temperature
Range
Part Number
Lead Free
AZ1117BR-ADJTRE1
AZ1117BR-1.2TRE1
AZ1117BR-1.5TRE1
SOT-89
-20 to 125
o
C
AZ1117BR-1.8TRE1
AZ1117BR-2.5TRE1
AZ1117BR-3.3TRE1
AZ1117BR-5.0TRE1
Data Sheet
AP1117M
AP2317
AZ1117B
Package
Marking ID
Green
Lead Free
E31F
E31G
E31H
E31J
E31K
E31L
E31M
Packing Type
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Green
G31F
G31G
G31H
G31J
G31K
G31L
G31M
AZ1117R-ADJTRG1
AZ1117R-1.2TRG1
AZ1117R-1.5TRG1
AZ1117R-1.8TRG1
AZ1117R-2.5TRG1
AZ1117R-3.3TRG1
AZ1117R-5.0TRG1
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with
"G1" suffix are available in green packages.
Sept. 2011 Rev. 2. 2
5
BCD Semiconductor Manufacturing Limited
京公网安备 11010802033920号
EEWORLD
