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AX1212A PDF даташит

Спецификация AX1212A изготовлена ​​​​«AXElite» и имеет функцию, называемую «1.2V Output 1A LOW Dropout Linear Regulator».

Детали детали

Номер произв AX1212A
Описание 1.2V Output 1A LOW Dropout Linear Regulator
Производители AXElite
логотип AXElite логотип 

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AX1212A Даташит, Описание, Даташиты
AX1212A
1.2V Output 1A LOW Dropout Linear Regulator
GENERAL DESCRIPTION
AX1212A is a low dropout positive 1.2V output regulator with minimum of 1A output
current capability. The product is specifically designed to provide well-regulated supply for
low voltage IC applications. AX1212A is also well suited for other applications such as VGA
cards. AX1212A is guaranteed to have lower than 1.5V dropout at full load current making
it ideal to provide well-regulated outputs of 1.2V with 2.6V to 12V input supply.
FEATURES
- Fixed 1.2V + 2% output voltage
- 1.5V maximum dropout at full load current
- Low-ESR Ceramic Capacitor (MLCC) Required for Stability
- Fast transient response
- Output current limiting
- Built-in thermal shutdown
- Good noise rejection
- Pb-Free Packages: SOT223, TO252
BLOCK DIAGRAM
Vin 3
2 Vout
Thermal
Shutdown
+
+-
CURRENT
LIMIT
+
1.2V
+
- 1 GND
1/7
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.6 Sep.16, 2010









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AX1212A Даташит, Описание, Даташиты
AX1212A
PIN ASSIGNMENT
The packages of AX1212A are SOT223-3L and TO252-3L; the pin assignment is given by:
SOT223
( Top View )
3 VIN
2 VOUT
1 GND
Tab is Vout
TO252
( Top View )
3
VIN
2 VOUT
1
Tab is Vout
GND
Name
GND
VOUT
VIN
Description
A resistor divider from this pin to the
VOUT pin and ground sets the output
voltage. (Ground only for Fixed-Mode)
The output of the regulator. A minimum
of 4.7uF MLCC capacitor must be
connected from this pin to ground to
insure stability.
The input pin of regulator. Typically a
4.7uF MLCC capacitor is connected
from this pin to ground to insure that the
input voltage does not sag below the
minimum dropout voltage during the
load transient response. This pin must
always be 1.5V higher than VOUT in
order for the device to regulate properly.
ORDER/MARKING INFORMATION
Order Information
AX1212A X X
Low Dropout
Regulator
Top Marking (SOT223-3L)
Package
Packing
E : SOT223-3L Blank : Tube
D : TO252-3L A : Taping
Top Marking (TO252-3L)
AXLogo
1 2 12
A
YWWX
Part number
Functional code
ID code: internal
WW: 01~52
Year: A=2010
1=2011
AXLogo
12 12
A
YYWWX
Part number
Functional code
ID code: internal
WW: 01~52
Year: 10=2010
11=2011
ABSOLUTE MAXIMUM RATINGS (TA = 25°C)
Characteristics
DC Supply Voltage
Operating Junction Temperature Range
Maximum junction Temperature
Power Dissipation
SOT-223
(multi-layer PCB cupper area 10mm*10mm)
TA=25oC, TJ=125°C
TO-252
Storage Temperature
Symbol
VIN
TOP
TMJ
PD
TST
Rating
-0.3 to 12
-40 to +125
150
1330
1810
-65 to +150
Unit
V
°C
°C
mW
°C
2/7
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.6 Sep.16, 2010









No Preview Available !

AX1212A Даташит, Описание, Даташиты
AX1212A
ELECTRICAL CHARACTERISTICS
(Under Operating Conditions)
Characteristics
Operation Input
Voltage
Output Voltage
Line Regulation
Load Regulation
Dropout Voltage
(VIN-VOUT)
Current Limit
Minimum Load
Current
Ripple Rejection
Conditions
Min Typ Max Units
2.6 - 12 V
IOUT=10mA, 2.6VVIN12V, TJ = 25°C
IOUT=10mA, 2.6VVIN7V,
TJ=25°C (Note 1,2)
IOUT=10mA, 2.6VVIN12V,
TJ=25°C (Note 1,2)
VIN=2.7V, 10mA< IOUT <1A,
TJ=25°C (Note 1,2)
IOUT=1A , VOUT=1%VOUT
1.175 1.20 1.225
- 1.2 3.6
- 1.8 6
- - 12
- 1.3 1.5
V
mV
mV
mV
V
(VIN-VOUT) = 3V
1. 1 - - A
0°CTj125°C
- 5 10 mA
F=120Hz,COUT=4.7uF , IOUT=1A,VIN=5V
- 60 70 dB
Temperature Stability IOUT =10mA
- 0.5 - %
JA Thermal
Resistance
Junction-to-Ambient
(Note 4)
JC Thermal
Resistance
Junction-to-Case
SOT-223
TO-252
SOT-223
TO-252
-
75
55
- °C/W
-
15
10
- °C/W
Note1: See thermal regulation specifications for changes in output voltage due to heating effects. Line and load
regulation are measured at a constant junction temperature by low duty cycle pulse testing. Load
regulation is measured at the output lead = 1/18” from the package.
Note2: Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power
dissipation is determined by the difference between input and output differential and the output current.
Guaranteed maximum power dissipation will not be available over the full input/output range.
Note3: Quiescent current is defined as the minimum output current required in maintaining regulation. At 12V
input/output differential the device is guaranteed to regulate if the output current is greater than 10mA.
Note4: Tap is connected to the multi-layer PCB cupper area 10mm*10mm.
3/7
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.6 Sep.16, 2010










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