AX1204 PDF даташит
Спецификация AX1204 изготовлена «AXElite» и имеет функцию, называемую «1A Ultra Low Dropout Linear Regulator». |
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Детали детали
Номер произв | AX1204 |
Описание | 1A Ultra Low Dropout Linear Regulator |
Производители | AXElite |
логотип |
7 Pages
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AX1204
1A Ultra Low Dropout Linear Regulator
GENERAL DESCRIPTION
The AX1204 is a low-dropout voltage regulator suitable for various electronic
equipments. It provides constant voltage power source. The dropout voltage of AX1204 is
below 0.15 V in full rated current (1A). This regulator has various functions such as a peak
current protection, a thermal shut down, a short circuit protect.
The AX1204 is available in SOP-8L power package which features small size to
reduce the junction-to-case resistance, being applicable in 0.1~1.6W applications.
FEATURES
- Ultra Low Dropout - 0.15V(typical) at 1A Output Current
- Adjustable mode: 1.22V Reference Voltage
- Fixed mode:2.5V, 3.3V, 5V output voltage
- Operating voltage can be up to 12V.
- Current-Limit and Thermal Shutdown Protection
- Short circuit protection, Enable function.
- Built-in internal SW P-channel MOS
- SOP-8L Pb-Free Package.
BLOCK DIAGRAM
VCC
EN
10uA
Current
Limit
Enable
7V
Thermal
Shutdown
Error
-
Amp
+
Vref=1.22V
OUT
FB
GND
1/7
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.4 Jun.22, 2010
No Preview Available ! |
AX1204
PIN ASSIGNMENT
The package of AX1204 is SOP-8L; the pin assignment is given by:
GND 1
FB 2
EN 3
Vcc 4
( Top View )
SOP-8L
8 OUT
7 OUT
6 OUT
5 OUT
Name
FB
EN
VCC
OUT
GND
Description
Feedback pin
Enable input, it is pull-high
typically. Drive EN high or floating
to turn on the regulator, driver it
low to turn it off.
IC power supply pin
Output Voltage pin
Ground pin
ORDER/MARKING INFORMATION
Order Information
AX1204 X XX X
ADJ Version
Package
Vout
Packing
S : SOP-8L Blank : Adj Blank : Tube
25 = 2.5V A : Taping
33 = 3.3V
50 = 5.0V
Top Marking
FIXED Version (VOUT=3.3V)
Logo
AX 1 2 0 4
YYWWX
Part number
ID code:internal
WW:01~52
Year: 10=2010
11=2011
AXLogo 1 2 0 4
-33
YYWWX
Part number
Output voltage
ID code:internal
WW:01~52
Year: 10=2010
11=2011
ABSOLUTE MAXIMUM RATINGS (TA=25°C)
Characteristics
Symbol
Rating
Unit
VCC Supply Voltage
VCC
-0.3 to 16
V
EN Pin Voltage
VEN -0.3 to 7 V
FB Pin Voltage
VFB -0.3 to Vcc+0.3 V
Output current
Io 1.5 A
Power Dissipation
PD 1.6 W
Storage Temperature Range
TST -65 to +150 °C
Junction Temperature Range
TJ -40 to 125 °C
Operating Temperature Range
TOP -40 to +85 °C
Thermal Resistance from Junction to case
θJC 20 °C/W
Thermal Resistance from Junction to ambient
θJA 60 °C/W
Note: θJA is measured with the PCB copper area(need connect to OUT pin) of approximately 1.5 in2 (Multi-layer).
2/7
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.4 Jun.22, 2010
No Preview Available ! |
AX1204
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, TA=25°C, VCC=5V)
Characteristics
Symbol
Conditions
VCC Supply Voltage
VCC IOUT=1A
Min Typ Max Units
3.1 - 12 V
Feedback Voltage
VFB IOUT=10mA, VCC =5.0V
1.196 1.22 1.244 V
IOUT=10mA, VCC =3.2V
2.45 2.5 2.55
Output Voltage
VOUT IOUT=10mA, VCC =4.0V
3.234 3.3 3.366 V
IOUT=10mA, VCC =5.5V
4.90 5.0 5.10
GND Current
Shutdown Current
IGND IOUT= 0~1A
ISD VEN =0V
- 1.2 3 mA
- 0.1 0.4 mA
Load regulation
Line regulation
Ripple rejection ratio
VLoad
VLine
PSRR
5mA < IOUT < 1A
IOUT=10mA,
VOUT+0.5V<VCC< 12V
Note1
- 0.5 1.5 %
- 0.1 0.5 %
- 65 - dB
Dropout Voltage
IOUT = 1A, VOUT=3.3V
VDROP
IOUT= 1A, VOUT=5V
- 0.15 0.25
V
- 0.1 0.2
Short circuit protect
Iscp VOUT<20%
- 0.3 - A
Current Limit
CL
1.1 - - A
EN Pin Logic input VENH High (regulator ON)
threshold voltage
VENL Low (regulator OFF)
2.0 - - V
- - 0.8 V
EN Pin Input Current
IENH VEN=2.5V (ON)
IENL VEN=0.3V (OFF)
- 20 -
- -10 -
uA
uA
VCC=3.5V,
Internal MOSFET RDSON RDSON
VCC=5V,
- 160 190
mΩ
- 130 160
Thermal Shutdown
TSD
- 140 -
Note: These parameters, although guaranteed, are not 100% tested in production.
°C
3/7
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.4 Jun.22, 2010
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