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AF72XXM
350mA Low Power LDO
Features
Low voltage drop: 0.17V@100mA
High input voltage: 18V
Low temperature coefficient
Large Output Current: >0.35A
Applications
Battery-powered equipment
Hand-Hold Equipment
Low Quiescent Current: 1.0uA
Output voltage accuracy: tolerance ±2%
Built-in current limiter
SOT-89 ,SOT23-3 and SOT23-5 packages
GRS Receivers
Wireless LAN
General Description
The AF72XXM series is a group of positive voltage
output, three-pin regulators, that provide a high
current even when the input/output voltage
differential is small. Low power consumption and
high accuracy is achieved through CMOS and
laser trimming technologies.
The AF72XXM consists of a high-precision voltage
reference, an error amplification circuit, and a
current limited output driver. Transient response to
load variations have improved in comparison to
the existing series. SOT-89, SOT23-3 and
SOT23-5 packages are available.
Selection Table
Part No.
Output Voltage
AF7218Mxx
1.8V
AF7225Mxx
2.5V
AF7228Mxx
2.8V
AF7230Mxx
3.0V
AF7233Mxx
3.3V
AF7236Mxx
3.6V
AF7245Mxx
4.5V
AF7250Mxx
5.0V
Package
SOT-89
SOT23-3
SOT23-5
Marking
Refer to Marking rule
Order Information
AF72①②③④⑤
Designator
①②
Symbol
Integer
M
P
M
C
R
G
Description
Output Voltage(1.8~5.0V)
Standard
Package:SOT89
Package:SOT23-3
Package:SOT23-5
RoHS / Pb Free
Halogen Free
Note:”①②stands for output voltages. Other voltages can be specially customized
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Block Diagram
AF72XXM
350mA Low Power LDO
Pin Assignment
Absolute Maximum Ratings
Supply Voltage ................................-0.3V to 18V
Operating Temperature .................-40to 85
Storage Temperature ..................-40to 125
Note: These are stress ratings only. Stresses exceeding the range specified under “Absolute Maximum
Ratingsmay cause substantial damage to the device. Functional operation of this device at other
conditions beyond those listed in the specification is not implied and prolonged exposure to extreme
conditions may affect device reliability.
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Marking Rule
1SOT23-3 and SOT23-5
AF72XXM
350mA Low Power LDO
List of Product Name vs. Product Code
Product
Name
AF7212
Product Code
(1) (2) (3)
SAA
Product
Name
Product Code
(1) (2) (3)
AF7213
S
A
B
AF7232
S
AW
AF7214
S
A
C
AF7233
S
A
X
AF7215
S
A
D
AF7234
S
A
Y
AF7216
S
A
E
AF7235
S
A
Z
AF7217
S
A
F
AF7236
S
B
A
AF7218
S
A
G
AF7237
S
B
B
AF7219
S
A
I
AF7238
S
B
C
AF7220
S
A
J
AF7239
S
B
D
AF7221
S
A
K
AF7240
S
B
E
AF7222
S
A
L
AF7241
S
B
F
AF7223
S
AM
AF7242
S
B
J
AF7224
S
A
N
AF7243
S
B
H
AF7225
S
A
O
AF7244
S
B
I
AF7226
S
A
P
AF7245
S
B
J
AF7227
S
A
Q
AF7246
S
B
K
AF7228
S
A
R
AF7247
S
B
L
AF7229
S
A
T
AF7248
S
BM
AF7230
S
A
U
AF7249
S
B
N
AF7231
S
A
V
AF7250
S
B
O
Remark Please contact our sales office for products with output voltage values other then the above.
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2SOT89
AF72XXM
350mA Low Power LDO
Note: The last two of them are based on the time of this product which is the first time into production,
and the third is the launch of this product ,it can be in 1 ~ 9 , which is expressed in "0" in October, in
November with an "A", in December with "B"; the fourth is of the launch of the product, such as
expressed in "0" in 2010, in "3" in 2013. For example: EZ81 represents AF7250PR product is first put into
production in August in 2011.
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AF72XXM
350mA Low Power LDO
Electrical Characteristics
AF72XXM for any output voltage
Parameter
Symbol
Output Voltage
Vout
Output Current*1
Low dropout*2
Line Regulation
Load Regulation
Output voltage
Temperature
Coefficiency
PSRR
Iout
Vdrop
VOUT
VIN VOUT
Vout
VOUT
Ta
PSRR
Supply Current
Input Voltage
Iss1
V in
Ta=25℃)
Conditions
Min. Typ. Max. Unit
V in=Vout+1V
Vout×0.98 -- Vout×1.02 V
1.0mA≤Iout≤30mA
V in-Vout=1V
-- 350 -- mA
1.6V≤V in≤8V
Iout=100mA
Vin= Vout+1V
1.0mA≤Iout≤100mA
Refer to the next table
-- 0.05
-- 12
0.2
30
%/V
mV
Iout=30mA
0≤Ta≤70
-- ±100 -- Ppm/
F=1KHz
V in=Vout+1V
--
-- 40 -- dB
-- 1 2 uA
-- -- -- 15 V
Electrical Characteristics by Output Voltage
Output Voltage Vout(V)
Vout 2.0V
2.0 < Vout ≤ 3.0
3.0 < Vout ≤ 4.0
4.0 < Vout ≤ 5.0
3.0 < Vout ≤ 4.0
4.0 < Vout ≤ 6.0
3.0 < Vout ≤ 4.0
4.0 < Vout ≤ 6.0
Conditions
Iout=60 mA
Iout=80 mA
Iout=100 mA
Iout=200 mA
Iout=350 mA
Dropout Voltage VdifV
Typ.
0.1
0.12
0.16
0.17
0.21
0.20
0.7
0.72
Max.
0.12
0.14
0.18
0.18
0.24
0.22
0.75
0.76
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